The 350z's VQ35DE Motor. ( High HP )

[Rone410]

OK, to start the thread everyone should know that the 350Z has a VQ35DE motor. ( Unless my eyes decieve me and i cant read my own handwriting. )

What is offered for those of us who have a need for the stupid amounts of power it would take to start blowing block doors off cars such as the Mitsubishi 3000GT VR-4 ( my last car ) or the corvet Z-06..?

Superchargers, Turbos, Twin Turbos ( such as the peope at Car V2 have put together http://carv2.com/site/project_detail.cfm?id=247 ), Block build ups...

I am personally looking for a VQ35DE block to build into a high HP engine to drop into my Z. When i say High HP, I'm talking about dropping the compression ratio, stroking the engine to 90mm as opposed to the stock 81mm, possibly sleveing the cylinder walls, porting and polishing everything, forged rods, forged crank, gutting the cats, opening up the exhaust, larger injectors with a stand alone fuel management sytem, twin turbos running aprox. 25 lbs of boost...

producing about 700-750 screaming little ponies...

So QUESTION: Where i can find a VQ35DE motor, how much one costs, if there is a better alternative to the VQ35DE block, what are your thoughts on such a project, what would you put on yours? Post it here or forever hold your peace.


-Rone Phillips
-71 Chevelle SS 454 ( RIP )
-91 3000GT VR-4 ( RIP )
-04 350Z Roadster ( VROOM!!! )


"Don't drink and park, accidents cause people."

[VQuick]

Sounds like the AEBS kit will take care of most of your needs. The sleeves included with the 4,3L stroker kit can handle up to 55psi.

http://www.aebsracing.com/products.p...ct=vq35stroker

[KoRnboy]

4.3L ???? Sick... oh and if you need a block (I'm thinking doing the same thing but stopping at 550-600HP) ask a nissan dealer... or a junk yard...

[igor@af]

As we being to build the AF 350Z project car to be a race car in a competitive series in 2006, we will be documenting every step of the way for our members. For road racing, Twin Turbo appears to be ideal, but we have no plans in stroking the engine to 4.3 liters as that can pose durability issues, especially at higher RPMs.

[KoRnboy]

How so? re-enforced engine parts not bieng durable enough? That doesn't make sence.

[VQuick]

With a really long stroke, you run a risk of the pistons rubbing against the cylinder walls at high rpm levels. The pistons are just moving too much, and it gets hard to keep them in line.

The 4.3L is probably a low to midrange torque monster.

[igor@af]

exactly. Think of the natural tendency of the way the piston moves. It does not want to move directly up and down as it is being made to. If you increase the vertical motion of the piston, unless done with perfect physics, you will have more wear on the piston and the cylinder walls.

[geofroley]

How much HP do you think the VQ will pump out? I'm talking the highest it could possibly get while still running on street gas and being street legal.

[VQuick]

Originally Posted by geofroley

How much HP do you think the VQ will pump out? I'm talking the highest it could possibly get while still running on street gas and being street legal.

I have no idea how much on the pump gas and in street legal form. I would guess that you could get away with 500whp or so, maybe a bit more. It really depends on who is tuning the car and how they do it. For example, SGP got something like 560rwhp out of a Z33. Pretty sure it was on pump gas, but I can't remember if it had low comp pistons or not. Don't know how the emissions were, either.

For an NA VQ35, 310hp is supposed to be the most Nissan can squeeze out while still legal. Race versions put out 450hp.

A guy from AEBS said one of their built VQs should easily make 1500hp+, though. Obviously, that would have to be in some sort of race tune.

[KoRnboy]

Okay I see what you mean now, now is there a way to make it wear less but keep the 4.2L (for the turbo set up they offer) size? Other than that I believe I've seen a 3.7L or 4.0L stroker, I'm not sure what boost I'll need but I want to be able to have about 550-600 HP to the wheels on a Greddy TT set-up ... If I get 500 with out crazy boost then I'll be happy, being by some limit IE: Octane of gas or some uber street illegal mod I'd have to do.

[VQuick]

To keep wear down, keep your revs down.

IMPUL makes a 3.8 stroker, but it's probably on the expensive side, especially since you'll have to pay for shipping from Japan.

There will be a factory VQ40 soon, offered in the new for '05 Frontier, XTerra and Pathfinder.

I found the link to the SGP-tuned Z33. Over 600rwhp@17psi on pump gas.

http://www.houston-imports.com/forum...d.php?t=122677

[KoRnboy]

Awesome so my goal is possible thanks for the info.

[VQuick]

No prob.

[otter7467]

how far do you think you could take an NA Z? hp wise

[KoRnboy]

If I had to guess, I'd say maybe around 400 RWHP. Perhaps a bit more, but unlikely. This number short of being a full racing engine ofcourse.