VQ35 Question????

[02maxSE]

Can anyone tell me why the 3.5 in a max is only making 255 and a 3.5 in a 350z is making 280? they have the same bore, stroke and compression is off by .1. one has a 10.4 the other 10.3. is there a difference in exhaust valves, bigger throttle body? let me know. thanks.

[MinisterofDOOM]

The big difference comes from the exhaust and intake. The Maxima has a very restrictive exhaust due to the transverse setup of the engine. There are also differences in engine tuning as well as a higher redline for the Z.

[02maxSE]

so would the intake manifold and throttle body from a Z fit on my max? can you explain what transverse is? thanks.

[MinisterofDOOM]

In a RWD car, the motor faces the front of the car and runs front to back. This is called "longitudinal".

In a FWD car like the Maxima, the engine sits right above (or slightly behind) the drive wheels, so it has to face sideways. That's what transverse means. Your belts and the front of your engine are next to your right wheel well. Because of this, the exhaust has to be routed around and under the engine, and it makes for some restrictive bends.

The 350Z intake won't work on the Maxima for the same reason: the engines aren't oriented the same way, so things wouldn't match up.

I'm not sure what the difference in throttlebody from Maxima to Z is, sorry.

[02maxSE]

thanks for the clarification on that. one more thing is there a company that makes a supercharger for the max and which one would be best?

[MinisterofDOOM]

I know Stillen made a supercharger for the earlier 5th gens (2000-2001) but I'm not sure if it is compatible with the 5.5 gen (2002-2003).

[nismo1219]

the only company i know of is stillen. they are a good company but can be a little "pricey" sometimes. im not too sure if they still manufacture the supercharger kit, i know they dont for the 4th gen...which REALLY sucks! you might be stuck with having to search for somebody selling a used one. hopefully stillen still sells them...good luck!!

[maxhopper]

To my knowledge, there is not a SC available for the 3.5 due to clearance issues in the engine bay.

[Fezzik]

Maxhopper is right about the SC. I have seen a 350z intake on a maxima but then you will have to take the hood off. It sits way to high once on.

[LA02MAX]

IM, cams, exhaust, tuning....

[DaBalla07]

Well many of these responses are believed to be tru I personally thought that it was bc the 350z was bored more, but come to find out after asking a friend who works for nissan he said that its because of the positioning of the motor as stated above a little further back and that the ecu is differernt and other than the ecu, weight, and rwd/fwd, and design there isnt any other difference but, the main reason per my friend is bc of the ECU.

[LA02MAX]

I stand by what I said...the ecu is tuned completely differently than either the A33B or the A34 maxima. It has MUCH more aggressive timing at pretty much any RPM/throttle input. Also, the IM is much better than ours and doesn't quit up top. However, the cams are only different on the 'revup' 350z engine (300 hp) and they have both intake and exhaust VVT...