Nissan 370Z Forum
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Nissan 370Z Forum (http://www.the370z.com/)
-   Forced Induction (http://www.the370z.com/forced-induction/)
-   -   In-House GTM Stage 2 SC Install\Tune (http://www.the370z.com/forced-induction/45287-house-gtm-stage-2-sc-install-tune.html)

kosstick 11-14-2011 09:00 PM
Quote:
Originally Posted by Mike@GTM (Post 1406774)
Yes, it's possible. Here's a graph of the Stage 2 with a smaller diameter pulley making 400wtq. Notice that the pull ends at 6200rpm because we stopped the pull...we were making 14psi of boost which was more than we wanted to make. The stage 2 is a real powerhouse once you start spinning it up.

Normally, we ship the Stage 2 with a 92mm pulley that is good for 500whp on 93 octane gas. Kosstick wanted less power and got the 96mm pulley instead.

http://i313.photobucket.com/albums/l...no27000011.jpg
seems like the general increase per 1k rpm is 100 WHP just like my set up.

So this car is possibly making 530-550 whp?

Mike@GTM 11-15-2011 11:42 AM
Quote:
Originally Posted by Nixlimited (Post 1407310)
Ohhhhhhhhhhhhhh. DUH. Sorry I missed that the first time. I was actually looking at that thinking, 6200 seems like an awfully low redline. Question indeed answered.
No problem.

Quote:
Originally Posted by kosstick (Post 1407367)
seems like the general increase per 1k rpm is 100 WHP just like my set up.

So this car is possibly making 530-550 whp?
After examining your dyno graph, you are making 75whp per 1k rpm increase.

4500 rpm -> 260whp
5500 rpm -> 335whp
6500 rpm -> 410whp

Yes, the car we were testing was making 100whp per 1k rpm increase and could have made 550whp, but we stopped the pull because it was more than we wanted to make.

NYBladeZ 11-15-2011 11:57 AM
So correct me if I'm wrong but as it stands the upper limits to the head unit at 14psi in this application is good for 550whp with the proper pulley. Meaning that if one would want to go even higher it would have to be via drop in lower compression pistons and rods.

Its safe to say that the Stage 2 kit is a beast, a user can get up to 14psi and 550whp which is more than needed for the street. 550whp and 400tq is a dream come true for any Z owner.

kosstick 11-15-2011 11:58 AM
Quote:
Originally Posted by Mike@GTM (Post 1408227)
No problem.



After examining your dyno graph, you are making 75whp per 1k rpm increase.

4500 rpm -> 260whp
5500 rpm -> 335whp
6500 rpm -> 410whp

Yes, the car we were testing was making 100whp per 1k rpm increase and could have made 550whp, but we stopped the pull because it was more than we wanted to make.
Mike, On my new dyne I think i was making 100 per 1k but i could be wrong, Seb can you post the final run with 463 / 335?

kosstick 11-15-2011 11:59 AM
Quote:
Originally Posted by NYBladeZ (Post 1408251)
So correct me if I'm wrong but as it stands the upper limits to the head unit at 14psi in this application is good for 550whp with the proper pulley. Meaning that if one would want to go even higher it would have to be via drop in lower compression pistons and rods.

Its safe to say that the Stage 2 kit is a beast, a user can get up to 14psi and 550whp which is more than needed for the street. 550whp and 400tq is a dream come true for any Z owner.
Probably 550 WHP 430 tq

KaienZ34 11-15-2011 12:01 PM
I'd be very happy with 420whp.

Mike@GTM 11-15-2011 03:52 PM
Quote:
Originally Posted by NYBladeZ (Post 1408251)
So correct me if I'm wrong but as it stands the upper limits to the head unit at 14psi in this application is good for 550whp with the proper pulley. Meaning that if one would want to go even higher it would have to be via drop in lower compression pistons and rods.

Its safe to say that the Stage 2 kit is a beast, a user can get up to 14psi and 550whp which is more than needed for the street. 550whp and 400tq is a dream come true for any Z owner.
We don't recommend running the stage 2 at 14 psi on a stock block with pump gas. If you are trying to get more than 500whp from the Stage 2 Supercharger kit, you're going to need more octane.

NYBladeZ 11-15-2011 03:54 PM
Don't worry Mike I won't mix up the SC capabilities with the TT, both of which are great products. I just like to get into the nitty gritty of it all. As of now I already have an oil cooler and UpRev tune so I would eventually be relying on you guys for hardware and fuel system upgrades if I don't go e85 before that. I know you guys are busy so I really appreciate the numerous responses. Keep up the good work.

Seb@SZ 11-15-2011 10:40 PM
Quote:
Originally Posted by kosstick (Post 1408253)
Mike, On my new dyne I think i was making 100 per 1k but i could be wrong, Seb can you post the final run with 463 / 335?
http://www.specialtyz.com/dynos/kevinlatest.jpg

KaienZ34 11-16-2011 08:44 AM
:yum: super sexy straight line....


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