Edmunds dealer partner, Bayway Leasing, is now offering transparent lease deals via these forums. Click here to see the latest vehicles!

Honda Civic Si / SiR 2005 and earlier

1555658606163

Comments

  • nippononlynippononly Member Posts: 12,555
    blueiedgod and john make an important point - yes the SI is versatile and a good commuter and all that other stuff, but its primary mission, I think, is to inject some sport and some fun into all those humdrum things one has to do in one's car. So you have to ask yourself the question: do I ever take advantage of the sporty aspects of this car - great handling and rev-to-the-redline acceleration runs? Even occasionally. I mean, if all you do is commute in it and drive it like the CRV, then you should be in a more comfort-oriented car. If you do love driving the twisties and wringing out that wonderful engine a little bit, well, you won't get that from an Accord coupe. Those things are big and quite floaty by comparison, even the V-6 6-speed with the better tires.

    2014 Mini Cooper (stick shift of course), 2016 Camry hybrid, 2009 Outback Sport 5-spd (keeping the stick alive)

  • jifjif Member Posts: 23
    i have an 03 satin silver metallic and unlike most cars i have owned (accords included) this is the only one that i enjoy more and more each time i drive it. BTW i have driven every thing in between ie. corvette z06, wrx, evo, etc.

     none match the combo of refinement , value , w/ decent proformance of the si also @ 17k-19k there is plenty of money for upgrades to match acceleration times of the aforementioned cars

    all that said it is your personal preffernce that really matters

          Josh
  • jifjif Member Posts: 23
    BTW i have owned my si for about a year and i have put 17k on it looking foward to the next 183k
  • carlisimocarlisimo Member Posts: 1,280
    kauai, how do you compare the P5 to the Si?

     

    taykinitezy, I would also say follow blueiedgod's advice. But don't forget customization. There are shock/spring kits or coilover kits that will give you a softer ride, and there are adjustable ones too. I don't know exactly which would give you a softer ride, but there's a website dedicated to the EP hatch where you could ask. It'd cost you several hundred to over $1k including installation, so maybe it's not an option.

     

    Otherwise, just have fun!
  • gee35coupegee35coupe Member Posts: 3,387
    I love my car. I lowered it and threw on a set of 17"s. Sure the ride is a bit roghter but the thing feels like it can do 90 degree angles.

      

    I'll be the first to admit the Si isn't for everyone, but whenever you open an import sport magazine, the Si is all over it. Not bad for a minivan.
  • kauai215kauai215 Member Posts: 190
    You wrote:

    “kauai, how do you compare the P5 to the Si?”

     

    They are very much alike in character, both being sport compacts successfully targeting people like us. The Protege5 obviously has the convenience of two extra doors, and it holds more as well, so we use it when we load up our kayaks on the roof and all the gear in the trunk.

     

    The P5 sits lower, corners flatter, thanks to an excellent, and stiff suspension setup mated to low-profile tires (195/50-16), and can give the Si a run for its money through the twisty bits, despite what it lacks in acceleration. It’s a splendid car and a lot of fun. Build quality is outstanding; this car is built in Japan. The P5 hasn’t the power of the Si, though. But it has “enough” for sensible use. That’s untrue, of course, as I’ve never had “enough” power in anything, ever. . . but you know what I mean. ;-)

     

    For handling prowess, the nod easily goes to the P5. The steering is superb, far better than the Si, and it handles like the proverbial go-cart. As rough as our friend Takinitezy finds his Si, it’s nothing compared to the P5, which will beat you up on rough pavement. The Si is tolerable to us, if only just, but the P5 has me thinking about my routes. If you didn’t need to visit the restroom at the beginning of a one-mile stretch of really rough city street in the P5, you’ll be looking for that restroom at the end! ;-)

     

    We love the go-cart handling, but it comes at a price. It’s no problem if your roads are smooth. You’ll love it then. I think Mazda dialed the suspension back a bit in the new Mazda3, although I haven’t driven one. The magazines say the P5 is more fun, but the Mazda3 probably generates fewer complaints.

     

    We’ve had the P5 for a couple of years and I’d buy it again in a heartbeat. If some unfortunate circumstances forced us to live with only one car, I think we’d sell the Si and keep the P5.

     

    The engine in the Si is incomparable. I have never enjoyed such a sewing-machine smooth 4-cylinder as this Si. And with it’s amazing engineering, it has real torque at even 2500 rpm, unlike the P5. The P5 engine is rough in comparison, and doesn’t feel nearly so strong. The Si, I’ve long maintained, drives like a small displacement V-6 with much more flexibility throughout the rpm range. It’s amazing technology.

     

    The P5 gets superior fuel economy, but only by a small margin. The Si’s fuel economy will drop dramatically in town driving if you dip into the throttle much. That technology that gives the V-6 performance also returns V6-like fuel economy at low speeds when there’s a lot of slowing, stopping, going, accelerating, etc. Others have noted this as well. One time we actually saw around 22 mpg when we just used the Si around our village where the speed limits are 25-30 mph. A steady throttle opening on the highway returns the more expected fuel economy of a 2L 4-cylinder of around 30 mpg.

     

    The Si sits higher and leans more in hard cornering. All the same, the Si is deceptively quick even with it’s scrawny 195/60-15 all season tires.

     

    The Si has superior technology, without question, but it falls short in equaling the build quality of the P5. That’s to be expected, though, when we recall the Brits’ “chequered reputation,” to put it charitably, for build quality. We’d buy the Si again as well.

     

    We’ve owned many Civics, three Si’s, and this is the best yet. Our ’99 Si would have made a better autocross car, though. The new Si’s don’t fare well in autocross compared to the older chassis, especially not when they’re modified for improved handling. The older wishbone design permits better maximum performance, I suspect. That’s what everyone anticipated, and it seems to be the case in autocross competition, at any rate.

     

    We both love the seats in the Si, while the seats in the P5 are ‘orrible, easily the worst I think we’ve ever had with the possible exception of our ’88 Mustang GT.

     

    These are definitely both fun cars, not mere transportation appliances, and they’re both easy to love.

     

    Both the Si and the P5 deliver on their promise of a fun sporting car with a practical nature. They’ll please any enthusiast, I should think. I recommend them both, and rather than choose, we got one of each! :-)
  • taykinitezytaykinitezy Member Posts: 56
    Man if you have to have jazz explained to you ...you'll never know, maybe hits the nail on the head. I think the Accord test drive may be a good idea. I think john500 could be right that the car I'm looking for doesn't exist. Part of my frustration is that the Si is the most I've ever spent on a car for myself and I have been disappointed somewhat in the build quality, from rattling glove box to creaking front struts. I like the Si for everything it offers except that it takes bumps like my old Ford Ranger. I appreciate blueiedgod and nippononly's enthusiasm but where the heck do you guys find a place around town to have acceleration runs? Two days before I entered my last post I was tagged with a $95 moving violation, first one in 32 years of driving.(maybe that's why I'm crying in my beer) jif is correct, it is really personal preference. You're right kauai you can't choose for me I don't expect you to, I am hoping for some enthusiasm from others to push me off the fence.....thanks all for your responses.
  • gee35coupegee35coupe Member Posts: 3,387
    My wife and I both drive our SI. It sees 100 mph or more at least once a week. I guess if all you have to do is sit in trafic and think about all the problems your car has, it's gonna be hard to find a nice $17,000 sporty car. That would explain the complaints about the ride though. My SI on 17's and Eibach Sportlines rides a little rough til 70 or so mph.
  • anonymouspostsanonymousposts Member Posts: 3,802
    I do love driving our Si. It's the best commuter I think we have ever owned. It's also a great cruising car at 80 MPH if seeing the tachometer at 4000 RPM doesn't bother you. So far ours has been extremely reliable (knock on wood) in it's first 25,000 miles. Is is the best car ever made? Nah. But at 16 months we have had this car longer than almost any other car we have owned. That says a lot for the SI.
  • blueiedgodblueiedgod Member Posts: 2,798
    I appreciate blueiedgod and nippononly's enthusiasm but where the heck do you guys find a place around town to have acceleration runs? Two days before I entered my last post I was tagged with a $95 moving violation, first one in 32 years of driving.(maybe that's why I'm crying in my beer) jif is correct, it is really personal preference.

     

    Get a good radar detector, or just keep an eye out for cops. We are not telling you to do anyting outrageously criminal. Accelerating to the speed limit is not illegal, taking turns faster than "suggested" speed sign is not illegal if you and your car can handle it. Of course, you need to know your and your car's limits. I suggest going to an empty parking lot and see what are the limits.

     

    Every winter, with the first snow fall, I take my car, whatever car I will be driving for the winter, to an empty parking lot. And re-train my self for snow driving. Although, driving skils are like riding a bicycle, if you don't do it often, you forget.

     

    PRoblem with people on the road, is that they lack emergency maneuvering skills. All they do is stomp on the brakes. With a front driver a combination of parking brake and throttle can save you from going into a ditch or hitting someone, as opposed to just slamming on the brakes and hoping not to hit anyone. This is where Si excells. If you just going to drive it to and fro work like a drone, get a KIA, it will get the job done just as well. One way to avoind traffic, is to switch your hours. When I lived and worked around NYC, I worked from 7 am, rather than 9 am, like everyone else. I rarely hit traffic doing those hours.
  • bobbsibobbsi Member Posts: 19
    Reinforcing driving skills (i.e., winter driving), I would encourage any & all to save up your pennies and attend a real performance driving school, such as Skip Barber, the Honda Driving school, etc and focus on the daily/performance classes. I had the good fortune to attend the Bertil Roos school in 1986 before it was strictly a racing school and it is some of the best money ever spent. You will learn car control at its best, finding the apex alone will make every enterence ramp more exciting & enjoyable, no mater what you are driving. Having said that, bye.
  • john500john500 Member Posts: 409
    I've passed the 20 K mark and now I am starting to think about modifications after the warranty expires. I found a site that describes some modifications to the SI, however, all of the data is in horsepower form. Has anyone done this step by step and reported quarter mile times or 0-60 mph times instead of dyno horsepower? For example, will an AEM cold air intake and a free-flow muffler get a 2003 Civic SI to 7.0 s 0-60 mph times, or are more modifications needed? The stock muffler on the SI seems pretty wide-bored, indicating that replacement might not net much of an acceleration gain (i.e. is it worth it).

     

    Thanks,

     

    http://www.importtuner.com/tech/0307it_ppcivic/
  • blueiedgodblueiedgod Member Posts: 2,798
    For example, will an AEM cold air intake and a free-flow muffler get a 2003 Civic SI to 7.0 s 0-60 mph times, or are more modifications needed?

     

    I don't think the Si's lack of HP is the main reason for 7.5 sec (??) to 60, but rather that you have to shift three times. The low red line and low gearing in the 1st, 2nd and final drive are the culprit. If you just raised the red line with a Hondata chip to 8000 RPM (I think), you should be able to do 60 mph in 2nd gear, and it would probably put you in 7.0 sec to 60 mph. IMHO.

     

    performance chart

      HP Level HP+ TQ Level TQ+B Baseline 153.3 * 131.9 *

    1 K&N Air Filter 160.6 7.3 135.3 4.4

    2 Tanabe Exhaust 163.4 2.8 134.8 -0.5

    3 DC Sports Header 166.9 3.5 129.7 -5.1

    Final 166.9 13.6 129.7 -2.2
  • muffin_manmuffin_man Member Posts: 865
    I love my AEM cold air intake, but changing just the muffler won't do a whole lot, I don't think it adds any horsewpoer on the Si. I do think it is worth getting a cat-back system.

     

    Most people modifying their cars measure the quarter-mile time, not 0-60. But there are plenty of people at 15.0 or better with:

    cold air intake, header, cat-back, and motor mounts.

     

    Hondata is great also, but a few people have blown engines with it. (it raises redline to 7400)
  • automd984automd984 Member Posts: 11
    I'm kind of mad that the Si does not have an automatic as some of the older civic hatchbacks do. I know it's sporty but they should have made it somewhat like the mid-90's.
  • gee35coupegee35coupe Member Posts: 3,387
    You are mistaken.
  • blueiedgodblueiedgod Member Posts: 2,798
    Si has never had auto. Si is for spirited driving, there is no spirited driving with auto. I am glad Honda does not offer auto in higher perfoming vehicles. It keeps un-skilled people away from the cars. If someone does not want to take time and effort to learn how to drive stick, how can you expect that same person to take time and effort to learn how to drive properly?

     

    Please don't bring on traffic issues, it is non-existent. I find it more difficult to modulate lower speed (sub 10 mph) in auto than manual. Autos always want to shift, while I want the car to creep at 5-10 mph. Driving a Honda stick in traffic is not difficult as long as you are not riding the bumper of the car infornt of you. I rarely shift in traffic jams. Next time you are stuck in a traffic jam, pay attention what the big rigs are doing. They are constantly rolling, you may see me rolling with them. When you are driving auto, your right leg does twice the work alternating between gas and brake to keep up. When I am driving an auto, like a rental or comapny car, and I am in traffic, i shift it to the lowest setting on the gear selector. This way I don't have to alternate between gas and brake.

     

    End of rant.

     

    P.S. Learn how to drive stick and you will see what you are missing.
  • carlisimocarlisimo Member Posts: 1,280
    I think he meant that some of the old hatchbacks had automatics. So the problem is that currently, the only hatchback is the Si (and I agree that's a problem).
  • gee35coupegee35coupe Member Posts: 3,387
    cars that come in automatic only, it's getting hard to use the "performance cars only come in manual tranny". These days even most Ferrari's are sold with automatics in the U.S. That's sad.

     

    As far as the hatchback/auto thing. No one in the U.S. wants hatches..manual or automatic. That's why they barely exist in this market.
  • carlisimocarlisimo Member Posts: 1,280
    Well, it sounded like automd984 wants a hatch. So do I, and lately they've been making a comeback (usually in 5-door form though). I think the next generation Civic will be sold here as a hatch in at least two trim levels, neither of which will be the type-R.

     

    And as sad as the current market situation is, many economy performance cars (Civic Si, Neon SRT-4, Cobalt SS, etc.) only come with a manual. As long as automakers think this niche is worth putting effort into, there'll be manual transmissions.
  • 204meca204meca Member Posts: 369
    I am starting to consider replacing my 92 Civic Si. I am looking for a used, relatively comfortable hatch with a bit of zoom that handles nicely & will get 25 mgp around town and over 30 mpg on the highway. Today I drove a Focus 04 ZX SES, an 02 Subaru Impressa Outback, and a 03 Civic. Still need to look at the Mazda3, but there is not a dealer in my town. Surprisingly, none were significantly quieter or more comfortable than my current car. Maybe I just have the "old shoes" syndrome and don't really want to part with my beloved '92 or maybe I need to hold out for the Honda Jazz.

     

      As far as overall driving feel, the 03 Si was noticably superior - the feel and location of the 5 spd beats any car I have ever driven, it is tight & quick & easy to toss around. However, it was by far the noisiest on the highway, the seating seem too low, and I really would like an armrest (got an aftermarket in my 92).

     

    Si ownwers: Has anyone successfully muted the road noise? Is there a aftermarket armrest available? Thanks!
  • blueiedgodblueiedgod Member Posts: 2,798
    I am starting to consider replacing my 92 Civic Si. I am looking for a used, relatively comfortable hatch with a bit of zoom that handles nicely & will get 25 mgp around town and over 30 mpg on the highway. Today I drove a Focus 04 ZX SES, an 02 Subaru Impressa Outback, and a 03 Civic. Still need to look at the Mazda3, but there is not a dealer in my town. Surprisingly, none were significantly quieter or more comfortable than my current car. Maybe I just have the "old shoes" syndrome and don't really want to part with my beloved '92 or maybe I need to hold out for the Honda Jazz.

      

      As far as overall driving feel, the 03 Si was noticably superior - the feel and location of the 5 spd beats any car I have ever driven, it is tight & quick & easy to toss around. However, it was by far the noisiest on the highway, the seating seem too low, and I really would like an armrest (got an aftermarket in my 92).

      

    Si ownwers: Has anyone successfully muted the road noise? Is there a aftermarket armrest available? Thanks!


     

    I don't notice the road noise over the music the engine makes and wide open thorttle. The stock radio is pretty powerful for a Honda radio. If you are sure that it was road noise and not wind noise or engine noise, different tire may be the solution.

     

    There is an aftermarket armrest, it is very crude, it attaches to seat mouting bolts on the passenger side of driver's seat and driver side passenger's seat. It has a sliding coushion. After I saw it, I walked from it. I got used to driving without armrest.
  • john500john500 Member Posts: 409
    As long as you car is in reasonably good condition, I'd hold onto the 92 SI if I were you. I recently took an '05 Corolla XRS on a test drive. Although not a hatchback, if Toyota had the Corolla XRS when I bought the Civic SI in '03, I would have strongly considered getting the Corolla XRS for the ride and comfort. It is somewhat reminiscent of the Civic SI coupes in 99-00.
  • bobbsibobbsi Member Posts: 19
  • muffin_manmuffin_man Member Posts: 865
    I found the Corolla XRS only marginally more fun to drive than a regular Corolla - it was a comfortable ride, but that is not a high priority for me if I'm looking for a sport compact.

     

    I really like the 92-95 Civic Si, it was one of my favorite cars at the time, but unavailable to me. It inspired me to buy the 02+ Si.
  • nippononlynippononly Member Posts: 12,555
    that looks awesome! It is going to make my RSX look very very old when it comes out. If that is how it actually makes it to market. I wish Honda would market SI models with rims that large in stock form. See how they fill the wheel wells just the right amount?

    2014 Mini Cooper (stick shift of course), 2016 Camry hybrid, 2009 Outback Sport 5-spd (keeping the stick alive)

  • raychuang00raychuang00 Member Posts: 541
    The big problem with the Corolla XRS' engine is the fact you really need to rev it WAY up there in terms of engine RPM's to get decent power. As a result, the acceleration times are not really that great.

     

    As for the new Civic Si coupé, I expect far better lower-RPM performance because of the use of i-VTEC, which gives the engine more "oomph" without having to rev the engine near the redline.
  • muffin_manmuffin_man Member Posts: 865
    john500 - Additionally, while the ride in the Si isn't always that smooth (and when it was lowered, glass felt like train tracks), I love the seats. To be honest, the seats and the shifter give this car something intangible. Maye it's just because I'm used to it, but I am really going to miss this setup when I get another car. Sometimes I try to convince myself to swap to an RSX-S or RSX-R engine so that I can keep the shifter, but I don't think I ever will.

     

    raychuang00 - I don't think the new Si is going to have any better torque than the current Si. Honda says they are taking the redline back to 8000. As long as the displacement stays low, the low-end torque probably will too.
  • gee35coupegee35coupe Member Posts: 3,387
    Has endeared itself to me too. It's not only the feel, but the placement. I want a CL 6-speed but I can't talk myself out of that wonderful shifter. That's why we've owned 3 HP's That and the fact I may kill myself in a 260hp CL.
  • dannyboy321dannyboy321 Member Posts: 1
    I know this is off topic... but i gotta 92 Civic CX hatch.... its gotta d15b8.. and i wunna swap that out... i jus need to know if anyone can give me suggestions on some of the easier engine swaps... i dont wunna do to many mods... my pockets are kinda shallow... thanx....
  • ncampbell2002ncampbell2002 Member Posts: 163
    If you are gonna do the engine swap most other engines that Honda put out in the Civic/Integra line will work because they use the same motor mount locations. Most go with a B16A that puts out 160 hp, (found in the Civic Si (1999-2000) or some Integras. If you want more then go for the B18C1 that was found in the later model Integra GS-R. I have even heard of some people dropping in the H22-A that are in the newer Prelude if you want real power.
  • carlisimocarlisimo Member Posts: 1,280
    The Prelude H22A swap will make your front end heavy, so it's only popular among drag racers. Can't add anything else to what ncampbell said.

     

    Oh and I found this: http://www.sportcompactcarweb.com/projectcars/0204scc_civicengine- /

     

    Dunno if any of this is a great idea on shallow pockets, but good luck. (Luckily, it doesn't take a B16A engine to make a car as light as your CX fast. You might find a good deal on a lesser B-series engine.)
  • blueiedgodblueiedgod Member Posts: 2,798
    I know this is off topic... but i gotta 92 Civic CX hatch.... its gotta d15b8.. and i wunna swap that out... i jus need to know if anyone can give me suggestions on some of the easier engine swaps... i dont wunna do to many mods... my pockets are kinda shallow... thanx....

     

    If your pockets are shallow, buy a used Civic Si. Engine swaps may look inexpensive, but if not done properly will cost you more in the long run.

     

    If you want high RPM power, go for B16, if you want low end torque go for B18. The cheapest solution for someone with not too much cash is nitrous, or forced induction. Forced induction on the CX engine is probably the best thing to do, since it has lower compression to begin with.

     

    Nitrous - $600

    Supercharger - $1500 6 psi max, with intercooler, proper fuel management - $2000 and up.

    Turbo - $2000, with intercooler and proper fuel management - $3500 and up.

     

    All of those modifications will lower the life expectancy of your motor, tranny, mounts, drive shafts. These mods are only recomennded for manual shifted vehicles, autos need not apply.
  • j_yip1j_yip1 Member Posts: 6
    Hey,
    New to this forum. But I was wondering, does anyone here do the 7,500 or 15,000 mile service? I have a 2004 Honda Civic Si with 17,500 miles and gets it's oil changed every 3,000 miles. I sorta think the 15,000 mile service is a waste of money. It's more a visual inspection and some lubing here and there and that's about it. Let me know what you think.
  • j_yip1j_yip1 Member Posts: 6
    Have had my 2004 Si for about a year and a half and love it. It has all the options and the speed isn't bad. 160 HP is more than enough for highway driving and more than enough to blow by traffic. Having fun with yours?
  • john500john500 Member Posts: 409
    I change the oil every 5 K and have a tire rotation every 15 K. I changed the air filter at 21 K and I will probably change the fuel filter somewhere in between 30-40 K. Nothing else besides my own visual inspection for leaks.
  • gee35coupegee35coupe Member Posts: 3,387
    It seems to burn a quart every 5000 miles or so. I just changed the air filter at 28K. The car runs like a top. I hit a bump too fast the other day though and knocked my alignment out. I'm having it checked tomorrow. I hope I didn't mess anything up. I'd hate to have to get rid of it....FOR A TSX!!!
  • wildbillwildbill Member Posts: 12
    I had a white 02 SI for two years. I put 15,000 miles on it and then traded it in for an 04 crv.

    I like the CRV but miss my fun drives in the SI. I may be buying an 05 SI soon and my wife thinks I am crazy.
  • gee35coupegee35coupe Member Posts: 3,387
    This is my third one. Totalled one, traded one. I love the car.
  • blueiedgodblueiedgod Member Posts: 2,798
    I am up for the 15,000 mile service, and although I have been doing my own oil changes with Mobil 1 at 5000 mile intervals, I may do the 15,000 at the dealer for this one reason.

    On take off, a spirited take off, I have this click, that I can feel in the steering wheel. The car is not pulling to the side, but I hear a click, or a quiet bang. My suspicion is that CV joint is stressed, the boot looks OK, I get no clicks in turns, only on spirited take off. My other suspect is the lower control arm mounting locations or ball joints. I know, the car is under warranty, and I should make this a dealer's problem, but most of the times they are clueless. I was wondering if anyone had similar experience and what the problem was.

    On the other board people talked about the steering racks being replaced on some 2002's. Not sure if it is related.
  • bobbsibobbsi Member Posts: 19
    I have experienced some 'interesting' noises from the front end that my dealer can't identify. Seems to happen on hard, slow turns when the suspension gets compressed. Unfortunatly, the Si is out of warranty, so it will be easier to find the root cause once it breaks.....sigh.

    btw...I followed your lead (at least I think it was you) and installed a set of G009's. Nice tires.
  • blueiedgodblueiedgod Member Posts: 2,798
    btw...I followed your lead (at least I think it was you) and installed a set of G009's. Nice tires.

    I have Potenza's 950's. I live where it snows, so all weather perfomance is important to me. I wish I could just run with summer tire, and then get winter tires for snow. But it seems to be too much hassle to be switching back and forth. It is not like once it snows the roads are covered with snow. The plows remove the snow and salt the roads. I don't see need for the 15-20 minutes for the whole season when I drive on snow covered roads. I just wait until the roads are plowed.
  • john500john500 Member Posts: 409
    Question-

    I was looking at aftermarket superchargers on the Jacksonracing.com website. The Civic SI has a listed horsepower of 160 and the Focus SVT has a listed horsepower of 170. The stock dyno tested horsepowers were 125.3 and 146.9 for the SI and SVT, respectively. Why and what contributes to Honda having engine to wheel horsepower ratio of 78 % and Ford an engine to wheel horespower ratio of 86 %.
  • kauai215kauai215 Member Posts: 190
    >John500 wrote:
    “Why and what contributes to Honda having engine to wheel horsepower ratio of 78 % and Ford an engine to wheel horespower ratio of 86 %.”

    You appear to be assuming that the original, claimed horsepower figures are accurate, and that both engines were evaluated identically. That's a big assumption, and might be worth reconsidering.

    The one constant (apparently) is the Jackson Racing dyno test, which has greater credence for me than anything the marketroids boast of.

    I would first question the accuracy of the manufacturer’s stated horsepower, and how they arrived at those figures. If an independent agency were to apply its own evaluation methods, would these two engines still come out at 160 and 170 hp, respectively?

    As you have alluded to, the real-world, delivered horsepower is what matters, not some, possibly, hypothetical figure.

    I would be surprised to learn that Ford somehow managed to dramatically reduce power loss between the flywheel and the road wheels, employing some "magical" new transmission technology.

    I suspect the answer to your question about this apparent discrepancy is more likely to be found not in the machinery, but elsewhere -- the advertising department, for instance. ;-)

    Do you recall the recent debacle the SVT folks were embroiled in when they claimed a certain horsepower figure for their SVT Cobra Mustang . . . and it turned out to be a wee bit optimistic? Did you hear about that?

    The buyers of said SVT Cobras were just the sort to go out and confirm those horsepower figures, and they were not amused or tolerant of the “error” when their engines failed to produce the advertised horsepower. They raised a ruckus!

    It proved expensive for Ford to make good to those Cobra buyers, and was a public relations nightmare.

    Possibly, just possibly, the SVT folks may now err on the conservative side when advertising horsepower figures . . . if only to hang onto their jobs. ;-)

    Just a thought.
  • blueiedgodblueiedgod Member Posts: 2,798
    Possibly, just possibly, the SVT folks may now err on the conservative side when advertising horsepower figures . . . if only to hang onto their jobs. ;-)

    Or to make inruance companies happier.

    I think someone posted on TEMPLE site their dyno charts for the 2002 Accord I4, it dynoed at 155 hp at the wheels, while Honda claims it having 160 hp at the crank. It is very possible that the engine produces more power than claimed.
  • john500john500 Member Posts: 409
    The under-reporting of power argument makes sense, given the significantly lower fuel economy of the SVT. However, I was under the assumption that that power reporting was scrutinized much more heavily (i.e. with fines levied etc) after the deliberate gross under-reporting that occurred during the "muscle-car" era.
  • kauai215kauai215 Member Posts: 190
    >Blue wrote:
    “Or to make insurance companies happier.”

    Yes, yet another behind-the-scenes factor that may influence a manufacturer’s decision to deliberately under-report performance figures.

    Very much along that same line is the current situation in Japan, as I understand it. Apparently, the government is not keen on manufacturers putting cars out on the street with more than 300 hp. I read in Autoweek, I think, that there is a gentlemen’s agreement amongst the Japanese manufacturers to refrain from building cars with more than 300 hp. They would prefer the government not become involved, but one wonders these days what the real power figures might be as, for instance, the EVO VIII goes head-to-head with the WRX Sti. ;-)
  • kauai215kauai215 Member Posts: 190
    >John wrote:
    "... the deliberate gross under-reporting that occurred during the "muscle-car" era."

    Yep. I had one of those. It was fierce! [laughing]
  • kauai215kauai215 Member Posts: 190
    My latest Autoweek has a piece on the new Si. It looks great!

    Apparently, there are even more photos on the Autoweek website for those who might be interested.
  • carlisimocarlisimo Member Posts: 1,280
    I've heard that Hondas lose quite a bit of power through the drivetrain.

    I've also heard that Focus engines have high tolerances, so you have good odds of getting one with 5 more hp than advertised, or one with 5 less. Sport Compact Car's project non-SVT Focus happened to have more power than expected... maybe it's a conservative rating by Ford.
This discussion has been closed.