Nissan 370Z Forum

Nissan 370Z Forum (http://www.the370z.com/)
-   Forced Induction (http://www.the370z.com/forced-induction/)
-   -   GTM Performance Engineering VQ45VHR-Our Journey to The 1000 HP and Beyond (http://www.the370z.com/forced-induction/20809-gtm-performance-engineering-vq45vhr-our-journey-1000-hp-beyond.html)

Nixlimited 07-14-2011 12:07 PM

Quote:

Originally Posted by DIGItonium (Post 1216128)
AFAIK, custom fuel rails to support the lower manifold adapter for the VR38 intake plenum, but I guess it will also support the larger injectors for Mike's build. Unless these fuel rails are a one size fits all solution, my car won't be needing it for the Stage II @ 6.5 PSI and VR38 intake plenum.

Since I'm in a bit of a crunch and cannot afford technical challenges beyond the TT setup, I'm going to hold off the VR38 plenum project for awhile. I was really hoping for something similar to Mike's setup with BOVs located in the engine bay.

Technically speaking (i.e. aesthetics notwithstanding), you don't want the BOVs in the engine bay. You want them before the intercooler. There is no point in heat soaking the intercooler with air that you are going to then vent after the intercooler, but before the combustion chamber i.e. air that is never going to be combusted. It may not matter much in the end, but if you want the highest system efficiency, then you don't want to cool air you don't have to.

DIGItonium 07-14-2011 01:06 PM

Quote:

Originally Posted by Nixlimited (Post 1216198)
Technically speaking (i.e. aesthetics notwithstanding), you don't want the BOVs in the engine bay...

Ah, thanks for the heads up. I wondered about the location of the BOVs in the HR versus VHR kits leading to Mike's setup.

Ron 07-14-2011 06:49 PM

BOVs on a GTM kit are already on the cold side of the IC. It's just a matter of moving them closer towards the TBs. They did it on this one:
GTM Motorsports*::*Customer Vehicles*::*Juan.U

Check these pics and follow the pipes.
http://www.the370z.com/forced-induct...p-532rwtq.html

JB-370z 07-18-2011 11:41 AM

Quote:

Originally Posted by Ron (Post 1216846)
BOVs on a GTM kit are already on the cold side of the IC. It's just a matter of moving them closer towards the TBs. They did it on this one:
GTM Motorsports*::*Customer Vehicles*::*Juan.U

Check these pics and follow the pipes.
http://www.the370z.com/forced-induct...p-532rwtq.html

I am doing it on mine. :happydance:

Ron 07-18-2011 04:29 PM

Me too... I need to talk to you about that JB, can u pm me your number?

Reality 08-04-2011 07:45 AM

Bumping in anticipation of epic results..
-Where oh Where can the 1000+whp #'s be? Where OH WHERE?

:hello:

SparkleCityHop 08-07-2011 08:56 AM

This build came up in conversation twice in the Formula Drift Pro/Am garage in Charlotte, NC yesterday. Conversations were about what HP the 35DE, 35HR, and 37 engines can do with turbos (stock vs built) - conversation one was about comparing to Sikky LSx swaps and conversation two was about comparing to the R35 platform. I wasn't sure what the top HP dynos are currently on the 370, but knew that you guys have been shooting to be the first to 1000hp on the 370 for a while now.

I haven't been on here long enough to know - and I hope this question isn't too far off-topic, but what's the most HP that anyone's seen so far on a dyno sheet for the 370 platform? I'm just wondering how much of a leap forward this 1000+hp build represents compared to the next highest?

Thanks!

DIGItonium 08-07-2011 10:55 AM

Welcome! :)

From a quick search, I honestly have not seen a 370Z make more than 600whp (stock block). The highest boost is no more than 12 PSI. Take a look at the torque curve from these motors as the boost gets increased... interesting?

500whp
http://www.the370z.com/forced-induct...tml#post758798
http://www.the370z.com/forced-induct...e-monster.html
http://www.the370z.com/forced-induct...tq-11-psi.html

However, this is probably the most I've seen from a VQ37 stock block:
http://www.the370z.com/forced-induct...p-474rwtq.html

Red__Zed 08-07-2011 01:20 PM

Quote:

Originally Posted by SparkleCityHop (Post 1249154)
This build came up in conversation twice in the Formula Drift Pro/Am garage in Charlotte, NC yesterday. Conversations were about what HP the 35DE, 35HR, and 37 engines can do with turbos (stock vs built) - conversation one was about comparing to Sikky LSx swaps and conversation two was about comparing to the R35 platform. I wasn't sure what the top HP dynos are currently on the 370, but knew that you guys have been shooting to be the first to 1000hp on the 370 for a while now.

I haven't been on here long enough to know - and I hope this question isn't too far off-topic, but what's the most HP that anyone's seen so far on a dyno sheet for the 370 platform? I'm just wondering how much of a leap forward this 1000+hp build represents compared to the next highest?

Thanks!


It is a pretty freaking big jump. I haven't seen anything in the 700 range even.

1slow370 08-07-2011 03:16 PM

ifit's just vq37's then there was the g37 gtm did that was dyno'd at like 700 or 800 something, the last shop car

christian370z 08-07-2011 05:11 PM

The power and torque curves look identical even as the boost goes up, hp is still climbing at the end of every run regardless of the psi being run which is pretty impressive.

DIGItonium 08-07-2011 05:22 PM

Quote:

Originally Posted by christian370z (Post 1249641)
The power and torque curves look identical even as the boost goes up, hp is still climbing at the end of every run regardless of the psi being run which is pretty impressive.

What I think is interesting is how the torque curve hits the ceiling at 400 lb-ft at 4k RPM at 12 PSI, but maybe there are other factors since this stuff is way over my head tee hee.

christian370z 08-07-2011 05:41 PM

I bet that has a lot to do with VVEL, especially as it applies to supercharged setups. But I guess that is just speculative until some real world results from GTM come out, it will be very interested to see what kind of gains cracking VVEL will give not only to FI guys but also N/A setups.

DIGItonium 08-07-2011 06:02 PM

Holy crap... I wonder how GTM is doing with the intake manifold and collector. After watching this video... I can't imagine simply slapping this thing onto our engines O_o

http://www.youtube.com/watch?v=cEJnewBSZ-Q

Kingbaby 08-07-2011 10:39 PM

anticipation


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