How much boost pressure can a built VQ37VHR withstand?
 

Hey guys,

So I'm in the final stage of planning out my 370z twin-turbo kit, but I was wondering about tuning and labor cost.

1. Is there an estimtae on how much will it take for a shop to install a twin turbo kit, a rebuilt engine, and oil coolers? I am currently viewing the Fast Intentions Twin-Turbo kit, but AAM Comp. just came out with their own.

2. How much pressure will a modified engine be able to withstand? Current mod list:
CSF Competition Radiator
Methanol Injection
EcuTek/Uprev Tune
Greddy High-Capacity Oil pan
ARP L19 Head Studs
Cosworth Head Gaskets
Wiseco pistons
Carillo/Eagle rods
ID/Bosch injectors
CJM Fuel pump
Fuel system
Return fuel system
Valve body upgrades
New spring and retainers
Fuel pump voltage stablizer

Thanks!
--Nuc370z

What do you mean by Carillo/eagle rods , Wisco pistons and billet crankshaft when a brian crower stroker kit is in your list already?! Do you know what BC kit includes ?!!!

Kinda skeptical here , sorry :)

i am on an unsleeved block with wiseco pistons/eagle rods and stock crank
i was told by my builder that the combo will be good for 600rwhp easy

i guest my question is at what point do you need to go sleeved ?

im not building a drag car just a strong street car and for me 600-650rwhp will get me 10's at the track and kill most cars on the road.

Sorry about that. My mistake. The parts list for the slash ("/") marks is still undecided/unordered, just trying to figure out which ones and I accidentally uploaded an old parts list. Taking out the BC kit.

You don't need a built engine to make 600-650. My F.I. twins make 604 on 100 octane with 14lbs of boost and an E85 car makes 620.

This is true. But for how long? We don't have the data yet. But his built engine at 600 will no doubt last longer than stock.

When I was running my 350z at 430whp...every time I got on her hard I prayed she would hold together..lol..

Built engines offer a piece of mind and allow you to have more fun vs. riding the ragged edge.

But at the same time opening up the engine can bring about a whole new set of issues.
I would say this car, if taken well of can survive quite well at 550-600whp on e85. A prime example of that is Phunk, he has 50-60k miles with his greddy TT kit making over 550 (if not 600) on e85.

In terms of boost pressure, the highest I have seen currently it John's 370z TT: John’s 370Z TT+ |
They hit about 25PSI though it seems and 800whp & 700TQ.

:iagree:

yea now it makes sense here ..
its ok, all the best.

But really how much does a new engine cost vs all the built money? I understand building for 700 or 800 hp but at 600-650 I would rather just put the money in the bank and buy a new engine if something blew up. They really aren't that expensive.

^^baller

How much is an OEM engine?

6-8k I believe.

I can get a built one installed for that same $8k. I'll gladly go built just so I know it can handle the power.

How much is it going to cost you for build parts and install?