krismax

What is needed to rev the 350z to 7500,7600 and even 8000rpm reliably.
Please tell me parts that are needed for sure just dont say custum everything
If you know from exspirience please chime in and i would like to know at diff levels like for instance say at 7500 this or thats needed then maybe at 7800rpm these things are needed.

Thanks i love high rpm and it is neccessary for a fast na car.

Methane

iTrader: (1)

These no point in reving that high with the VQ35DE, it has a smooth linear powerband with low end torque, get a Honda if your looking to rev that high.

Z1 Performance

iTrader: (564)

to do it on a VQ, you will need a few things.

1. headers - stockers resrict alot of flow up top

2. cams - stock cams are not ideal for high rpm use at all

3. valvesprings - might be needed depending on the cam you choose and how high you intend to rev it. No one has a VQ that will rev quite that high yet so its trial and error at this point

4. rod bolts - a known weak link on the VQ above the mid 7000 range. NISMO offers their own, which they say is recommended for use over 7200. I am sure they are being on the conservative side with the 7200 level, so use that as a guide. However I dont think its exactly healthy to have the stock rods, and stock bolts, expected to keep things happy to extended mid 7k trips.

5. ecu - to physically raise the rev limiter

6. depending how high you intend to go a fuel pump might be needed as well as the stock one is puny and will likely run out of steam at sustained high rpm use

adam

Tex Willer

https://my350z.com/forum/showthread....ight=rod+bolts

But you will need lots of modifications to produce power at 7000 rpms+ on the vq35de. There is no point in just reving to 8000 rpm.

krismax

thanks but i would have this in a 2500lb vehicle and im sure it would be oplenty of power to move it at high rpms all im looking for is around 7500rpm with rod bolts it seems like it will be good ill be putting JWT springs in to.
thanks

Tex Willer

I don't understand, why are you sure that there is power at 7500rpms? Stock, the vq35de produces max power at 5800-6200(depending on version) then drops consistently quite fast. If you were to rev at 8000 rpm you'd be producing less than 100hp probably, lol. You will need to modify a whole serie of elements(plenum/intake manifold, cams, maybe heads, probably injectors, and a whole mess of whatnots) and then have a proper ecu to take into account all that... then maybe you will produce power at 7000rpms+.. and maybe the car will still be driveable everyday,


what has weight of the vehicle have to do with poweroutput of the engine?

krismax

oh thanks for your help ,weight matters alot because 156whp civics can run mid 12's not because of the power its there weight. I have a ecu already thats set for 8000 rpm just want really 7400-7500 out of the 3.5

Im trying to keep this as a 350z topic but its going in a maxima with using the maxima wireharness with cams and valvetrain goodies.

Just trying to know my boundries