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Mazda RX-8



  • mdw1000mdw1000 Posts: 171
    After having my RX-8 for a couple days and loving it, I'm starting to think about adding a couple things. I'm wondering if anyone has bought the mazda splashguards and if so, how they look on the car. I've noticed that these big tires seem to kick up a lot of stuff on the underside of the car - keep hearing little pieces of gravel, etc. Plus I've had dry roads and have still noticed a bit of "splash" dirt behind the front wheel wells.

    Also, anyone bought the maza all-season floormats?

  • plektoplekto Posts: 3,738
    Nice info about the engine - so it's doing what my old car does with oil in the cylinders(at 39 years old, she can be given some slack - still drives better than a new Corolla), but with gas.

    Wouldn't a proper fix be to just partially open the valves when it's shut off? If the gas could evaporate, it would solve the problem, or at least most of it. I was also wondering - would changing to those multi-prong plugs help at all? Not the dent on the in the center type, but the ones that I've seen with four prongs coming in from the edges. That seems pretty near impossible to "get wet". I'd also suspect that platinum plugs with their small resistor surface in the center would fare worse as well.
  • duke15duke15 Posts: 161
    I was sorry to hear about your job bunnygirl. My wife is a nurse and has worked at several hospitals and most of them seem to do money things like that in one way or another.

    I called the Costco dealer on Tuesday, and left him a message saying that I wanted to order a car this week. He hasn't returned my call yet. I left him another message today. I never thought I'd see the day when I contacted a car salesman and said that I want to buy a car this week, and have been ignored. Maybe I'll phone him tomorrow and say, "What do I have to do to get me into a car today?". If I don't hear anything by Monday, I'll just go to another dealer, tell them what I get from the Costco program, and ask them to match it.

    Good luck on getting the new job!
  • rorrrorr Posts: 3,630
    "Wouldn't a proper fix be to just partially open the valves when it's shut off?"

    Rotaries have no valvetrain and hence, no valves.
  • trispectrispec Posts: 305
    I'm 6'1" 220lb. My wife and 7 year old son spend 16 hours over two days on a 1000 mile trip (2000 round trip) in my new RX-8. We practiced several smaller, shorter trips before, but we had absolutely no problem with the space in the RX-8.

    In fact, I can say, with experience driving Mini-Vans, four door sedans, and wagons over the same 16 hour 1000 mile route, the RX-8 blows the other vehicles away because:

    1) The RX-8 is way way easier to drive at high speed for passing and cruising. Need to get the job done in any other vehicle, you gotta work hard just to keep things on the road.

    2) The RX-8 seats, are stunningly comfortable over very long periods. Other vehicles just don't support you.

    3) The RX-8 is very easy to pack because of those suicide doors. Other vehicle might hold more, but then crap goes flying around alot too.

    4) The RX-8 is plain fun to drive over the whole trip. Other vehicle are just mind crushingly boring to drive even 10 miles.

    5) Put a golf glove on one hand then put an oven mit on the other. Which one is more comfortable?
  • trispectrispec Posts: 305
    Yep, it' now closer to the manual's procedure, but the half second with my foot off the gas is not really long enough for the 3000RPM to drop much so the pumping action of the rotors is pretty much the same as before. But more gas is definitely being burned up in that half second.

    Having done this modified shut down procedure a dozen times now, I can definitely say, that start up is much smoother and quicker with 1 second crank times every time. There must have been a very small bit of gas left before, because there was a little bit of a jerk to most startup. Now, it's like turning on an electric motor
  • plektoplekto Posts: 3,738
    Rotaries have no valvetrain and hence, no valves.

    That was my point, too - perhaps a device that opens up the intake ports or maybe even a couple of purge-valves(or simmilar) when it's off? Let some air into the engine. When the key is put in the ignition, they close click shut/back into position When the key is removed, they open up.
  • nikkonikko Posts: 3
    I'm 6'3" 195 lbs and fit fine in my RX8. I even have a sunroof.
  • rorrrorr Posts: 3,630
    "That was my point, too - perhaps a device that opens up the intake ports or maybe even a couple of purge-valves(or simmilar) when it's off?"

    As I understand rotaries, the intake ports are ALWAYS open. They 'open' and 'close' as the rotor spins in the housing and the face of the rotor alternately covers up and then uncovers the ports (same for the exhaust side). The portion of the housing containing the spark plugs is located in a separate part of the housing from the intake. In other words, any fuel remaining in the portion of the housing containing the spark plugs is physically seperated from that part of the housing containing either the intake or exhaust ports.

    Yes, I suppose that if the problem were severe enough, purge valves could be installed so that fuel remaining in the chamber with the plugs would have a means to escape. Personally, I don't think the problem is severe enough.
  • pathstar1pathstar1 Posts: 1,015
    The liquid fuel runs to the bottom of the rotor housing, where it can sit for days (from experience, ours and others). When you try to start the engine some of it is swept up past the spark plugs. They are set deep in the rotor housing, with small holes that allow the spark created flame front to advance into the "combustion chamber" (the three "bathtub" like structures machined/cast into the rotor faces). Some liquid fuel enters through the small hole and soaks the spark plug, resulting in little or no spark.

    Even though the "intake ports" are always open, they are low in the engine assembly, and gas vapour is heavier than air. It stays in the engine as it forms an equilibrium of condensation and evaporation. A warm or hot engine has no problem evaporating any liquid fuel left inside, hence it's hard to flood a warm engine. In this case the heat forces the fuel vapour out into the air box as well as into the carbon canister. It also helps to have warm spark plugs - any fuel touching them will evaporate rather than soak into the ceramic.

    The solution is very simple. Don't start a cold engine and then shut it down before it warms up a bit. Don't think this problem is restricted to rotaries. It isn't. Piston engines resist the problem of no start because in most cases the spark plugs are high (don't get exposed to any liquid fuel) and any liquid fuel left in the combustion chambers runs past the piston rings into the oil in the crankcase. As long as the spark plugs fire they will recover from a flood condition. Have you never noticed that sometimes a piston engine will start up and emit a lot of carbon dust? It was flooded!
  • plektoplekto Posts: 3,738
    So why don't they put the plugs as high up as possible and also install some sort of purge valve. Perhaps a second set of "plugs"?(their only function would be to burn off the fuel - basically not much different than a piezo type igniter found in cigarette lighters and most gas stoves these days) Start the car and you have three plugs firing and three little electric "starters" firing for a few seconds - then they shut off once it gets going.

    Kind of like "glow plugs" for rotaries :)
  • mdw1000mdw1000 Posts: 171
    Anybody here get the mazda Sirius satellite radio installed? If so, does it integrate well with the sound system?
  • rorrrorr Posts: 3,630
    Plug location is dictated by the shape of the housing and the rotor. You can't just place the plugs wherever the hell you want. The only way to appreciably change the plug location would be to rotate the entire engine assembly (which would create other problems with both the intake and the exhaust port locations).

    Personally, I don't know that this is still really THAT much of a problem. Are there still continual reports of flooding issues following the latest updates to the ECM?
  • pathstar1pathstar1 Posts: 1,015
    Well, we haven't had a flood in the last two years, and we drive our RX-8 all year round in Edmonton Alberta. It gets cold up here! I think the flashs that Mazda have been doing were successful. If you try hard enough I'm sure you can flood the car, but with reasonable use I doubt you'll have a problem.

    I've explained why it happened, and what Mazda did to fix it. I think it's fixed. End of story for me!
  • rorrrorr Posts: 3,630
    "I've explained why it happened, and what Mazda did to fix it. I think it's fixed. End of story for me!"

    Agreed. Issue resolved.
  • bunnygirlbunnygirl Posts: 30
    The first shipment has arrived "at port" today!!!!! They will be hitting dealerships in two to three weeks.
  • bunnygirlbunnygirl Posts: 30
    Mazda updated their website tonight (well, after midnight PST). All the 2006 info is up, with the exception of the Shinka since it is not due to be out for a few months anyway.
  • tokeytokey Posts: 5
    Can someone tell me the location of all 9 Speakers?

    Thanks All!
  • mugster2mugster2 Posts: 4
    ANyone from Canada know of a good aftermarket appearence parts wholesaler. I find the prices for RX8 addons a little pricy.
  • duke15duke15 Posts: 161
    The 2005's had Velocity Red Mica paint, but on the Mazda site, the 2006's have Velocity Red paint listed. I think this is the same paint, but does anyone know for sure if it is? This is the last piece of info I need prior to ordering my new car.

    thanks all!
  • bunnygirlbunnygirl Posts: 30
    Yep. It's the same paint. Order away!!!
  • bunnygirlbunnygirl Posts: 30
    I just checked with my dealer and my car is sitting at port with a dealer delivery date of March week 3, as are ALL the other 06's that have shipped so far (West Coast port in San Diego). So, around Spring Break is when you will start seeing 2006 models hitting dealer lots. I hope this puts to the rest all the "there are no 06's" rumors. Yay!!! I can hardly wait that long!!!!
  • kloepjakloepja Posts: 5
    My local dealer still has a new black 2004 RX8 on the lot, 380 miles. 6 speed with the sport package and a Nav system, and the spare tire accessory. They are asking $25,500 for it, which seems high to me. I was thinking $23,000 would be a fair price, any opinions?

    How is the reliability been on these vehicles, would I be better off with a 2005 or 2006? I like the way it drives, and would love to own one, but am a little nervous about the flooding, and weak starting issues.
  • wpavlik2wpavlik2 Posts: 32
    I have a 2004 6mt with the GT package. I love my car. The only mechincal issue I have had is the brake pads squeeking at 16k miles (covered under TSB) and the O2 sensor went out. That was covered under warranty as well.
    I would have liked the NAV system, but I wasn't willing to pay the 2 grand for it. (Not sure if you realize that it is a $2000 option)
    My thing for the dealership would be to have them change the oil and give you a new battery for the vehicle before you take delivery. check here on the Edmunds site and see what a 2004 with those options is worth (TMV) and maybe check Kelly Blue Book as well.
  • pathstar1pathstar1 Posts: 1,015
    Also, the 2006 models are basically the same as the 2004. There were some TSB issues, such as fuel tank insulation. The dealer has to address all those issues before selling the car, so you should be ok and the car should be right up to date. The only thing you can't get on the 2004 (that you could on a 2006) is the keyless entry/start system and the two new colours. I think the CD on the newer models will also play MP3s, whereas the older units can't - from reports from owners.
  • qbrozenqbrozen Posts: 21,970
    i just checked carsdirect and they quote $26,798 for a brand new '06 equipped as you stated.

    There is NO WAY I would pay $1300 less for a car 2 years older. I think your $23k price is closer ... but I still wouldn't do it, personally. Off the top of my head, I'd be looking for more like $2500 off for each year. So $5k off what I could get a new '06 for. That means less than $22k.

    '17 F150 Crew 2.7; '67 Coronet R/T; '14 Town&Country Limited; '09 LR2 HSE. 44-car history and counting!

  • duke15duke15 Posts: 161
    If you wait a couple of weeks until the 2006's are on the lots, you should be able to get a 2005 for that price. It is somewhat of a gamble, but you can get a better idea on price by checking out what the used 2004's cost on Edmunds with that equipment and mileage. Remember that it will essentially be two years old now. Your warrantee won't start until you buy it though. For comparison, the 2006 that I am ordering today is $31,300, and it is the 6-spd AT, GT, appearance pkg, spoiler, sirius, leather, and fender strakes. So, you are talking about $6k less than that, but a used 2005 with your specs is roughly $26,000, I would guess a 2004 would be roughly $24,000. If you want it, get it, but offer them your price and tell them that the 2006's will be on the lots around the end of the month so you won't go any higher. --You could also check the current rebates, and see what they are - but I would still offer them less and tell them you want the rebates too.
  • audia8qaudia8q Posts: 3,138
    I would avoid the 2004...the 2005 has had alot better track record...saving a few dollars may not be worth the potential problems.
  • duke15duke15 Posts: 161
    I ordered my car tonight - a ton of excitement followed by some disappointment when the forecasted date for my car to arrive isn't until June - that stinks. Still, I am looking forward to it, and for the first time I am getting exactly what I want - no more, no less - instead of deciding based what was on the lot. The specs are:
    2006 RX-8
    6-spd Sport A/T
    Velocity Red Mica
    Grand Touring Pkg
    Black Leather
    Appearance Pkg
    Satellite Radio
    Fender Strakes

    I can't wait until it gets here! My thanks to all who endured my questions on this forum...
  • mdw1000mdw1000 Posts: 171
    I recently bought an 05 AT GT for 24200. That is with all the Mazda and auto show rebates. They gave me the 05 for a little less than invoice and added on the rebates on top of that. This is in the Chicago area.
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