Fresh Alloy reports 290 hp out of VQ35

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07-15-2002, 11:43 AM

#161

AltyPaul

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Join Date: Jan 2002

Posts: 92

Carpoint isn't known for accuracy. I would double-check the ESM.

Quote:

Originally posted by ewood420
Check this link out. Seems the bore & stroke is different too.

http://carpoint.msn.com/compare/choo...0135&pt=compet

07-15-2002, 11:45 AM

#162

soundmike

Very sound, Mike

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I didn't know they'd be different. But to answer your question:

SEFI: Sequential (E?) Fuel Injection
MPFI: Multi-Port Fuel Injection

07-15-2002, 11:52 AM

#163

AltyPaul

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Join Date: Jan 2002

Posts: 92

I don't know if the 2 terms are synonymous.

http://www.howstuffworks.com/fuel-injection4.htm

There are two main types of control for multi-port systems: The fuel injectors can all open at the same time, or each one can open just before the intake valve for its cylinder opens (this is called sequential multi-port fuel injection).

The advantage of sequential fuel injection is that if the driver makes a sudden change, the system can respond more quickly because from the time the change is made, it only has to wait only until the next intake valve opens, instead of for the next complete revolution of the engine.

Here's another source on fuel injection.

http://autos.yahoo.com/repair/results/ques075.html

Quote:

Originally posted by soundmike
I didn't know they'd be different. But to answer your question:

SEFI: Sequential (E?) Fuel Injection
MPFI: Multi-Port Fuel Injection

07-15-2002, 12:17 PM

#164

SR20DEN

VQ Wizard

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Quote:

Originally posted by ewood420
Check this link out. Seems the bore & stroke is different too.

http://carpoint.msn.com/compare/choo...0135&pt=compet

HAHAHAH.. Carpoint dumbasses. The geometry listed for the 350Z is for the VQ30DE. ALL VQ35DE's are 95.5mm bore x 81.4mm stroke. Thats roughly 3.76" x 3.2". The VQ30DE is 93mm x 73.3mm.

I am not sure about the fuel rail and injectors. It stil seems to me that all VQ35s have virtually the same fuel rail. And you can count on the injector bosses being in exactly the same spot with the same gaskets.

04-25-2006, 08:07 AM

#165

DeusExMaxima

Supporting Maxima.org Member

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Quote:

Originally Posted by 02MaximizedVQ

I doubt the ECU from the 350 will be able to be used on the Maxima. The fuel pressure is probably higher and the injectors may be larger too. Also the CVTC is programmed for use with longer duration higher lift camshafts which could also be a problem for us Maxima owners.

Jesse

My ECU has been reflashed with the 350Z program in it and its fabulous!!!