Howdy, Stranger!

It looks like you're new here. If you want to get involved, click one of these buttons!

Howdy, Stranger!

It looks like you're new here. If you want to get involved, click one of these buttons!

Did you get a great deal? Let us know in the Values & Prices Paid section!
Meet your fellow owners in our Owners Clubs

Toyota Sienna 3.5L power?

hause7hause7 Posts: 153
edited June 2014 in Toyota
Are their any 07 sienna owners here? If so how does the new 3.5L engine perform? i am thinking of trading our 04 in for an 07. i wanted to know how the new V6 performs while passing and when going up steep inclines? thanks in advance. =]


  • allezallez Posts: 21
    For me it has plenty of power - it doesn't transform the van into a sports car, but it does allow it to do what I want it to do. I can't really compare it to the 3.3L because I haven't driven previous Siennas.
  • hause7hause7 Posts: 153
    Can someone post a 0-60 video of their 07 sienna? i wanna see how well it can accelerate, i would really appreciate it =]
  • ateixeiraateixeira Posts: 72,587
    It's quicker than any van really needs to be, put it that way.

    The 3.3l was plenty adequate, don't get me wrong. 0-60 was in the 8 second range, I believe.

    But the 3.5l puts it in 7 second range, even the slow pokes at Consumer Reports managed 7.7s to 60 in an AWD model.

    So if you're looking for that extra little oomph, that's basically exactly what you'll get.

    If you're not, the gearing is the same and with Direct Injection it can be extremely fuel stingy at low rpms. I've had 2 tanks where I averaged 30.6mpg. My worst tank so far was 23.x mpg, and that was around town.

    Let me find that torque curve...found it. See how flat it is? It breathes better than the 3.3l at high RPM, so that's how it makes more HP, but it has 10% more torque all over the rev band.
  • ateixeiraateixeira Posts: 72,587
    Note: it's the one on the right. On the left is a V8.

    The V6 actually has a flatter torque curve, surprisingly.

    Note that from about 2200 rpm to around 5800 rpm, there is no valley in the torque curve at all.

    I have that engine in my Sienna and love it.
  • hause7hause7 Posts: 153
    The flatter is better? well, i want to know how responsive is the Sienna's transmission to the newer V6?
  • ateixeiraateixeira Posts: 72,587
    Yes, flatter is better, because that translates to linear power delivery, i.e. you get similar acceleration at any RPM.

    What you don't want are peaks and valleys that make it slow (or suddenly fast) at certain RPM.

    When you stab the throttle the transmission gives you a gear right away, 2 gears take a little longer. With the power of the 3.5l you don't usually need 2 gears for passing, though.

    I have yet to encounter a situation where I wanted more power with my van.
  • hause7hause7 Posts: 153
    thanks alot, it is good to hear the 2007 sienna has all the power you need. have you driven it up some inclines yet? if so, how did it perform with the steep inclines? i really can't wait tell we can get an 07. Do you have an LE?
  • I have driven the LE '07 for 4 months now and the power is phenomenal. I live in West Texas and have driven it through some of the mountains out here and it moves easily up any incline. Remember, it still weighs about 4300 pounds. It is very tempting to just press the accelerator and drive it like a Nissan Maxima - but, it has 270 horses - and when you use all of them to pull 4300 lbs - you burn alot of fuel. Although capable of 26-28 mpg, I tend to really enjoy the engine as my previous vehicle was a V-8 powered LS430. I can get as low as 19-21 mpg in the city. Still beats the heck out of any SUV with the equivalent power in terms of gas mileage by at least 35-40%. It'd probably take a 5.3 liter V-8 to equal this pull in an SUV/truck. In fact, I've driven between San Antonio and El Paso at least 8 times with it on I-10 and I easily pass anyone or anything with ease - there is so much power still on tap at 70-80 mph. Any dad giving up a sports car for a minivan will love it. Definitely ditch the '04 Sienna. You'll fall in love with this power train immediately. A buddy of mine traded in his older Mercedes - couldn't afford the loaded LE - was looking at cheaper brands such as Kia, Nissan, etc., but after driving mine, he got a CE for under 23K simply because of this new engine. Despite two manual doors, he loves his minivan!
  • ateixeiraateixeira Posts: 72,587
    The Mid-Atlantic is flat as a pancake. I haven't been out to the Shanendoah mountains but even then they look like hills if you're from the Rockies.

    Any how, for things like passing, power is abundant. Hit the gas and you are there, often I used too much throttle and need the brakes to compensate.

    I also own a Miata, and while the Miata could do circles around the van, the van is a LOT quicker, no contest.
  • allezallez Posts: 21
    Reminds me of the saying:

    "With great power comes great responsibility . . ."

    Sometimes I have to remind myself. It is a minivan, after all ;)
  • ateixeiraateixeira Posts: 72,587
    I use that quote all the time! :D

    Go Spidey!
  • We've owned an 04 Sienna (XLE w/all options) since 2004 and it's proven to be an outstanding vehicle. I also own an 02 Maxima (255hp) and am power hungry - so have always wanted more power in the Sienna.

    With that said, in July, we rented an 07 Sienna LE for @ 10 days. Obviously, we missed the goodies (Nav, DVD, Power Doors, Leather, etc.) - but WOW, did I love the power difference. I have to say with all honesty that "Stomping on it" at 50mph shot us straight to 75mph in absolutely no time!!! I looked over to my frightened wife and all we could do is laugh the first time... It scared us both - that big of a difference...

    The thing I did notice, however, is that the engine seemed louder when you got on it. Don't know if there's extra deadening in XLE's or not, but it was definitely some additional decibels out there.

    If you're in the market again, 07/08 should yield some pretty big differences - especially for those wanting all the goodies. Some would include: 3.5L vs. 3.3L (270hp vs 230hp I believe), Larger DVD Screen, In dash 4 CD (vs only 1) for Nav option, Voice Activated Nav now, Bluetooth, Turn Signals in Mirrors, Power Folding Mirrors, Power 3rd Row Seat, & Rear Disc Brakes (still Drum for loaded 04 XLE) - all for a price VERY CLOSE to the same loaded 04 XLE. To me, these are all significant changes that would trigger immediate interest in trading/updating - if I were in the market. Note, however, that you may not like what they've done to the wheels!!! I definitely like my 04 17" rims much better than these new 07/08 rims - look more like standard hubcaps to me...

    Unfortunately, I'm not trading for another 2-3 years (trying to keep 6yr cycles on my cars as much as possible).

    Fortunately, my Maxima is going bye-bye in next couple months (sad, but nice). I've negotiated & ordered a loaded 2008 Highlander Ltd (2WD) to replace the Max!!! Very excited & impressed with this new styling, size, features, & ride. Just have to wait for it to arrive.

    Hope this helps - good luck in your decision :)

  • hansiennahansienna Posts: 2,312
    AGAIN, can you post the HP and Torque curves of the 3.3L in 2006 vs 3.5L of the 2007? :confuse:

    Without the side-by-side comparison of the 2 engines, a comparison of 3.3L to 3.5L is of little value but it should be noted that the 3.3L develops its maximum torque AND HP at a lower rpm than does the 3.5L even though the 3.5L has more power than the 3.3L at any comparable rpm.

    Official Toyota information states the 3.3L has the Direct Injection in the same words used to describe the 3.5L. :shades:
  • Hmm... I guess if you're THAT tied up in HP, torque curves, when RPM max torque is achieved, and so on... Why "minivan"... Get a Porsche Cayenne Turbo or something that hauls (in both senses)! At present, I believe this is as high performance/HP as you get in the current stock minivan segment. Who knows, maybe for next generation Quest, Nissan will decide to put in the 3.7L w/330HP that's found in the new G37. Doubt it will retain that level of HP w/out engineering rejection/CYA, but who knows!!

    You may want to consider one of the the upcoming high performance Crossovers/SUV's if peak performance is your objective. It'd probably end up being safer & more enjoyable at same time!

    Drive them both. Toss the papers & make a decision off real life conditions - rather than some numbers. As an 07 Sienna passes you on a steep incline on your way to Tahoe are you going to reach in the glove box, hold up the papers, and say, "According to this chart, you should not have been able to pass me between 40-55mph cause my maximum torque was reached 1/16 mile ago and yours won't reach for another 1/16 mile"!!! And as the 07 passes, you see AWD wrote on back and have to return to glove box for more papers & charts & amazement...

    From what I've experienced, there's some type of dramatic difference between these two engines - I don't care what the papers say.

    Another thought, have a friend - who's a good contender in performance testing & limits - go with you to a dealer having a used 07 Sienna w/at least 1500 miles on it... Test them out side by side in various conditions and note who pulls ahead!!! Maybe he'll beat you from 0-10 or even 10-20, but wait till you try 50-70 and inclines.

    Good luck in your final decisions and please be safe & lawful :)
  • hansiennahansienna Posts: 2,312
    I am satisfied with the power and performance of my 06 Sienna with 3.3L BUT I have been informed in Edmunds that the 07 Sienna with 3.5L has MUCH more power and a HP/Torque graph was posted for the 3.5L.

    I was satisfied with my 02 T&C 3.3L that had considerably fewer HP and noticeably fewer Lb-ft of torque. My post was a friendly jab to get the graph of the Sienna 3.3L posted in same posting as the 3.5L for a real comparison. ;)
  • ateixeiraateixeira Posts: 72,587
    Nice post, well written.

    Minor correction, the SAE HP figures for the 04-06 was 215hp, and for 07-08 is 266hp. A noticeable gain.

    Torque went up about 10%, and the curve is very flat, as the earlier graph shows. Even assuming the 3.3l has a similarly excellent, flat torque curve, you're still gaining about 10% of torque at all rpm, with a little better breathing at higher rpm (and no sacrifice at low rpm, hence the flat curve).

    Noone complained about the 3.3l, but the 3.5l is actually quick enough to surprise more than a few folks.

    What sold me, and made me wait, though, was that the extra power came at no sacrifice in fuel economy.
  • Thanks for the feedback :) Most places I look, I do see the 07 Sienna as having 266HP, but the 04 I'm only seeing 230HP... Has this been down-graded due to new regulations (i.e., Premium Fuel tests vs. Regular Fuel tests, etc.)?
  • hause7hause7 Posts: 153
    No the 2004 and the 2007 both use different engines, thats why the 04 makes 230HP and the 07 makes 268HP. the 2004-2006 Sienna used a 3.3L V6 while the new 07-08 uses a 3.5L V6.
  • Thanks for comments. I was questioning the 215HP SAE response mentioned before my posting. I've always been under the assumption that my van has 230HP, but when I saw 215HP posting, I became suspicious that new regulations adjusted the original HP values!!!

    Thought I just lost 15 of my hard earned HP! Looking forward to the next generation Sienna. Hopefully, it'll be released by 2010 :shades:
  • hansiennahansienna Posts: 2,312
    Your 2004 Sienna NEVER did have an honest 230 HP since there was NO change to the engine between 2004 and 2006. :shades:
  • hause7hause7 Posts: 153
    215 or 230HP, it doesn't matter, it has more than enough to move me away from a stop and pass, i love to drive it alone, i win lots of stoplight races with it, so it cannot be slow. I love Toyota V6's =]
  • ateixeiraateixeira Posts: 72,587
    Well, it did, sort of.

    In 2004, the rules were more relaxed, you could measure HP by disconnecting certain accessory belts that use up some of the available power.

    It did still make "230 HP" at the time, but that was by using some of these tricks, which were allowed at the time.

    The Society of Automotive Engineers stopped the cheating by giving specific rules for stating output. So under these new rules, the 3.3l made 215 SAE HP, to be specific.

    230 HP under the old rules = 215 SAE HP under the new rules, though.

    Not all engines lost HP, in fact some GM engines gained a few. Toyota was "cheating" more than most, though it was allowed under the old rules, so it wasn't illegal, just misleading.

    The 210hp 3.0l V6 was downgraded to 190 SAE HP.

    The 3.3l V6 was downgraded to from 230hp to 215 SAE hp.

    We drop the "SAE" part now because they all use SAE HP. No need to distinguish any more, unless you compare output from before vs. after the new rule went in effect.
  • hause7hause7 Posts: 153
    we rented an 07 sienna for 3 days to see how much we liked it, and we loved it. it had awesome power, and we averaged 27.3 mpg over the 250 miles we had it. i love the new 3.5L v6!
  • ateixeiraateixeira Posts: 72,587
    How much did the rental cost?

    I shopped for rental vans in Tampa and was FLOORED! :surprise:

    An Uplander was $220 for the 4 days, something like that, while a Sienna was $600 plus! :mad:

    At least it doesn't cost you triple to buy.
  • hause7hause7 Posts: 153
    i think it was like $200. we rented it mainly to see how the new v6 performs, and we liked it...a lot.
  • ateixeiraateixeira Posts: 72,587
    That's cheap. What rental company, may I ask? We may get one if the price is under $300 for the 4 days.

    I'm not paying $600 plus, it's not 3 times the van.
  • hause7hause7 Posts: 153
    we rented through hertz i think, we only paid the difference since we had a free compact car rental for the 3 days from AAA, when our 04 sienna was in for some body work from when we were rear ended.
  • ateixeiraateixeira Posts: 72,587
    C&D measured 0-60 for all the latest vans.

    Sienna got 7.2s, all the others were 8 seconds or greater. The Chrysler vans came closest, the others were well behind the Sienna.

    Told ya the 2GR was a gem.
  • lxpatellxpatel Posts: 34
    I have 07 Limited, i also notice extra decibels of noise compared to friend's 06. Is there a solution to this? Like using Synthetic oil. I was going to change to synthetic oil but dealer recommended switching after 10k with regular oil, meaning doing initial 5k with regular oil and switching at 10k.

    Also notice a growl at 2000 to about 2500RPM in top gear and comes to hill or something but does not down shift.

    A friend suggested to have different headers installed but don't want to go that route.
  • ateixeiraateixeira Posts: 72,587
    The 06 has the 3MZ engine (3.3l V6) with a timing belt. Belts are quieter, but they also need to be changed at certain intervals. So your friend will be paying for timing belt replacements, and you won't.

    Your 2GR V6 has a timing chain, which indeed makes more noise, but lasts the life of the car. Toyota added some sound insulation in the door jambs and in the firewall to offset that somewhat, but you will hear more engine noise.

    Still, in the C&D van comparison the Sienna was one of the quietest vans at cruising speeds.

    I wouldn't make any changes.
This discussion has been closed.