How much boost pressure can a built VQ37VHR withstand?

theDreamer · 08-08-2014, 08:43 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, 09:11 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.

37winner · 08-09-2014, 03:05 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.

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.

I'm more interested in that GTR manifold! Someone please shed some light on this!

tturbo370z · 08-09-2014, 01:51 PM

Quote:

Originally Posted by 37winner

I'm more interested in that GTR manifold! Someone please shed some light on this!

Other than being an expensive unicorn and handling so far 26psi of boost. I would wait for Charles, specialty Z or someone else to make a worthy intake that is proven to make power. I have no before or after dyno so I cant tell u if it helped me make power or the opposite. I do know that I had to have custom billet fuel rails made to accomadate the intake conversion as well as repipe my charge piping. Save your money and wait. Plus I doubt anyone will ever see another one come out. I may be wrong and for me rarity is better. Waiting will provide proven results and more bang for your buck IMO. But who knows when that will be...

37winner · 08-09-2014, 02:04 PM

Quote:

Originally Posted by tturbo370z

Other than being an expensive unicorn and handling so far 26psi of boost. I would wait for Charles, specialty Z or someone else to make a worthy intake that is proven to make power. I have no before or after dyno so I cant tell u if it helped me make power or the opposite. I do know that I had to have custom billet fuel rails made to accomadate the intake conversion as well as repipe my charge piping. Save your money and wait. Plus I doubt anyone will ever see another one come out. I may be wrong and for me rarity is better. Waiting will provide proven results and more bang for your buck IMO. But who knows when that will be...

Thanks for the info! I'm curious as to when your saying worth intake. Is something wrong with the gtr intake manifold? I figure going from plastic to whatever material the gtr material is, it would be much better.

So how did you get that conversion made? I'm very interested! Please do share!

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