How much boost pressure can a built VQ37VHR withstand?

Nuc370z · 08-08-2014, 04:11 AM

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

Glover997 · 08-08-2014, 05:53 AM

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

Nissan370 · 08-08-2014, 07:06 AM

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.

Nuc370z · 08-08-2014, 07:31 AM

Quote:

Originally Posted by Glover997

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

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.

Arrvaxx · 08-08-2014, 08:11 AM

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.

TopgunZ · 08-08-2014, 09:32 AM

Quote:

Originally Posted by Arrvaxx

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.

theDreamer · 08-08-2014, 09:43 AM

Quote:

Originally Posted by TopgunZ

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.

jwick · 08-08-2014, 10:11 AM

Quote:

Originally Posted by theDreamer

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.

Glover997 · 08-08-2014, 11:18 AM

Quote:

Originally Posted by Nuc370z

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.

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

Arrvaxx · 08-08-2014, 12:09 PM

Quote:

Originally Posted by TopgunZ

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 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.

fuct · 08-08-2014, 12:40 PM

^^baller

TopgunZ · 08-08-2014, 01:34 PM

Quote:

Originally Posted by Arrvaxx

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.

How much is an OEM engine?

theDreamer · 08-08-2014, 02:33 PM

Quote:

Originally Posted by TopgunZ

How much is an OEM engine?

6-8k I believe.

jwick · 08-08-2014, 02:40 PM

Quote:

Originally Posted by theDreamer

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.

Arrvaxx · 08-08-2014, 03:03 PM

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

08-08-2014, 04:11 AM	#1 (permalink)
Nuc370z Base Member Join Date: Apr 2014 Location: Redmond Posts: 34 Drives: horribly Rep Power: 11	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 Last edited by Nuc370z; 08-09-2014 at 09:53 AM.

08-08-2014, 05:53 AM	#2 (permalink)
Glover997 Base Member Join Date: Nov 2011 Location: Oman. Posts: 71 Drives: 08 infiniti G35 AT Rep Power: 14	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 Rid3_FaM0uS likes this.

08-08-2014, 07:06 AM	#3 (permalink)
Nissan370 Enthusiast Member Join Date: Feb 2011 Location: Baltimore Posts: 431 Drives: 2009 ST BLK 370Z Rep Power: 14	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. nomodsjk and NismOrly22 like this. __________________ 370z vsr motorsports single turbo/built motor 9.1cr 525rwhp/450rwtq @ 10.5psi (stock maf maxed out)

08-08-2014, 08:11 AM	#5 (permalink)
Arrvaxx A True Z Fanatic Join Date: Jul 2013 Location: Whore Island, MN Posts: 1,243 Drives: 40th F.I. Twin Turbo Rep Power: 18	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. TerribleONE, Hotrodz and jchammond like this. __________________ 2010 370Z 40th Anniversary (#480 born 1/19/2010) Fast Intentions Twin Turbo \| Varis Arising II \| Limited Edition Recaro Sportster \| Tuned by Specialty Z \| 604hp 525 torque @14lbs boost on 100 octane

08-08-2014, 12:40 PM	#11 (permalink)
fuct A True Z Fanatic Join Date: May 2009 Location: Sugar Land Posts: 3,692 Drives: 97' Ranger :) Rep Power: 24	^^baller EP370z likes this.

08-08-2014, 03:03 PM	#15 (permalink)
Arrvaxx A True Z Fanatic Join Date: Jul 2013 Location: Whore Island, MN Posts: 1,243 Drives: 40th F.I. Twin Turbo Rep Power: 18	How much is it going to cost you for build parts and install? __________________ 2010 370Z 40th Anniversary (#480 born 1/19/2010) Fast Intentions Twin Turbo \| Varis Arising II \| Limited Edition Recaro Sportster \| Tuned by Specialty Z \| 604hp 525 torque @14lbs boost on 100 octane

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