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Toyota Sienna 3.5L power?

55 messages,  Last post on Dec 22, 2009 at 12:01 AM

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What is this discussion about? Toyota Sienna, Van

Messages Page 3 of 6

#16 of 55 Re: How quick? [cmptrguy74] by hansienna

Sep 09, 2007 (4:33 pm)

Replying to: cmptrguy74 (Sep 09, 2007 3:31 pm)
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.

#17 of 55 Re: 3.5L power? [cmptrguy74] by ateixeira

Sep 10, 2007 (12:17 pm)

Replying to: cmptrguy74 (Sep 07, 2007 8:11 pm)
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.

#18 of 55 Re: 3.5L power? [ateixeira] by cmptrguy74

Sep 10, 2007 (6:15 pm)

Replying to: ateixeira (Sep 10, 2007 12:17 pm)
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.)?

#19 of 55 Re: 3.5L power? [cmptrguy74] by hause7

Sep 10, 2007 (7:17 pm)

Replying to: cmptrguy74 (Sep 10, 2007 6:15 pm)
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.

#20 of 55 Re: 3.5L power? [hause7] by cmptrguy74

Sep 11, 2007 (6:06 pm)

Replying to: hause7 (Sep 10, 2007 7:17 pm)
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

#21 of 55 Re: 3.3L power? [cmptrguy74] by hansienna

Sep 11, 2007 (6:27 pm)

Replying to: cmptrguy74 (Sep 11, 2007 6:06 pm)
Your 2004 Sienna NEVER did have an honest 230 HP since there was NO change to the engine between 2004 and 2006.

#22 of 55 Re: 3.3L power? [hansienna] by hause7

Sep 11, 2007 (7:03 pm)

Replying to: hansienna (Sep 11, 2007 6:27 pm)
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 =]

#23 of 55 Re: 3.3L power? [hansienna] by ateixeira

Sep 12, 2007 (9:20 am)

Replying to: hansienna (Sep 11, 2007 6:27 pm)
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.

#24 of 55 finally drove one by hause7

Sep 23, 2007 (12:14 am)

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!

#25 of 55 Re: finally drove one [hause7] by ateixeira

Sep 24, 2007 (3:22 pm)

Replying to: hause7 (Sep 23, 2007 12:14 am)
How much did the rental cost?
 
I shopped for rental vans in Tampa and was FLOORED!
 
An Uplander was $220 for the 4 days, something like that, while a Sienna was $600 plus!
 
At least it doesn't cost you triple to buy.

Messages Page 3 of 6

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