GTM Stage 2 Supercharger Preliminary Testing Results

b1adesofcha0s · 05-16-2011, 10:33 PM

Congrats on the results. Good job guys!

NewYorkJon34 · 05-16-2011, 10:37 PM

Quote:

Originally Posted by sojirovskensi

Will this SC2 kit be required to change any stock material besides adding an oil cooler?

A new clutch

Nixlimited · 05-16-2011, 10:41 PM

Congrats on the results Sam! 450WHP is what I wanted out of the S/C kit and now it looks like there is a clear path to get there. That TQ curve is phenomenal.

definitionxmk · 05-17-2011, 12:20 AM

Just when I was going to give up on the stage 2... This happens

dwntwnall4u · 05-17-2011, 12:55 AM

Are the dyno charts from the stage1 at 8lbs of boost?

SAM@GTM · 05-17-2011, 01:29 AM

Quote:

Originally Posted by dwntwnall4u

Are the dyno charts from the stage1 at 8lbs of boost?

Yes it is .

Sam

G37sHKS · 05-17-2011, 08:06 AM

Quote:

Originally Posted by esfourteen

Awesome results Sam, great power at 10psi. Are you planning on selling those stiffer motor mounts separately?

Quote:

Originally Posted by SAM@GTM

Yes we will, they will make a nice upgrade on their own, of course they are not for everyone.

Sam

Can someone please explain to me what is stiffer motor mounts? how its a nice upgrade??

christian370z · 05-17-2011, 08:17 AM

Quote:

Originally Posted by G37sHKS

Can someone please explain to me what is stiffer motor mounts? how its a nice upgrade??

They allow for the engine to move less when the engine tries to twist itself on the motor mounts due to urethane being a harder material. It will allow for slightly better engine response as there is no movement allowed when compared to the softer and thicker rubber stock mounts.

Does anyone know how big of a job is it to install new motor mounts?

NewYorkJon34 · 05-17-2011, 09:58 AM

Prob not that hard since it'll be put in at the same time as the stage.2 kit

Alberto · 05-17-2011, 10:02 AM

How about a stage 1 @ 10psi if possible or a Stage 2 at 8psi to compare apples to apples...the way you have this comparison laid out doesn't make sense.

roplusbee · 05-17-2011, 10:05 AM

10 PSI is goog to go on the bottom end? Sounds like some folks are going to need to get some forged internals................namely me. Why did you do this to me GTM? I thought I was all set to go with my F/I build and then you spring this on me, lol.

theDreamer · 05-17-2011, 10:20 AM

Quote:

Originally Posted by Alberto

How about a stage 1 @ 10psi if possible or a Stage 2 at 8psi to compare apples to apples...the way you have this comparison laid out doesn't make sense.

Because stage 1 is within its efficiency range at 8PSI and stage 2 is at 10PSI, it is designed to show you how a stage 2 kit can go farther than a stage 1.
Which is also why Sam said the stage 2 does not need a smaller pulley as it did not show any increase in power, similar with the stage 1.

NewYorkJon34 · 05-17-2011, 10:50 AM

I thought the motor can hold up to 9psi safely, since I have LTH's it might drop the psi but still am curious

esfourteen · 05-17-2011, 11:11 AM

Quote:

Originally Posted by NewYorkJon34

I thought the motor can hold up to 9psi safely, since I have LTH's it might drop the psi but still am curious

No one can give you a number of "maximum safe boost" because theres no way to really know how long the internals will last and peoples definition of "safe" varies. We know that 8psi seems ok to run for long term, 10psi shouldn't be much worse. Sam/GTM seem to plan on running 10psi here, so they feel its a safe enough level for the engine to last reasonably long with their tuning.

Mr.Squeeze · 05-17-2011, 11:13 AM

Quote:

Originally Posted by theDreamer

Because stage 1 is within its efficiency range at 8PSI and stage 2 is at 10PSI, it is designed to show you how a stage 2 kit can go farther than a stage 1.
Which is also why Sam said the stage 2 does not need a smaller pulley as it did not show any increase in power, similar with the stage 1.

It has more to do with the supercharger being maxed out ,and to much over lap. The stage 2 flows 11% more than the stage 1, if you compare the two dyno charts that Sam posted it adds up to that.

05-16-2011, 10:33 PM	#31 (permalink)
b1adesofcha0s A True Z Fanatic Join Date: Jan 2011 Location: MD Posts: 40,963 Drives: HypeTrain Choo Choo! Rep Power: 141	Congrats on the results. Good job guys! __________________ Project: b1adeZmobile (2009 370Z) \| Uprev Tune by AAM Competition \| Berk Exhaust Project: b1adeZmobile 2.0 (2014 C7 Z51) \| Corsa Xtreme Exhaust

05-17-2011, 12:20 AM	#34 (permalink)
definitionxmk Track Member Join Date: Jul 2009 Location: Los Angeles CA Posts: 973 Drives: Stage 2 SC 370Z Rep Power: 16	Just when I was going to give up on the stage 2... This happens __________________ *FALKEN . AMUSE . STANCE . INVIDIA . MINES . TOMMY KAIRA . BRIDE . VOLK RACING . GTM* Featured in DSPORT issue #137 - Follow me on Instagram: @definitionxmk

05-17-2011, 12:55 AM	#35 (permalink)
dwntwnall4u Base Member Join Date: Dec 2010 Location: San Diego/ Hawaii Posts: 158 Drives: 2011 370Z AT,S,T,PW Rep Power: 14	Are the dyno charts from the stage1 at 8lbs of boost? __________________ Working my *ss off for a GTM Rotrex SC to go with my 2006 URD Rotrex SC 4x4 Tacoma.

05-17-2011, 10:05 AM	#41 (permalink)
roplusbee A True Z Fanatic Join Date: Dec 2009 Location: Killeen, TX Posts: 2,360 Drives: 2007 350Z NISMO Rep Power: 22	10 PSI is goog to go on the bottom end? Sounds like some folks are going to need to get some forged internals................namely me. Why did you do this to me GTM? I thought I was all set to go with my F/I build and then you spring this on me, lol. __________________ 2007 350Z NISMO #0618: Zerolift \| UPREV \| F.I. \| Greddy \| Competition Clutch \| Injector Dynamics \| Aeromotive \| Pioneer \| JL

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
GTM Supercharger Stage 1 w/ F.I. LTH	theDreamer	Forced Induction	140	03-16-2013 04:50 PM
GTM Performance Engineering Stage 1 Turn key Supercharger kit In house Installation.	SAM@GTM	Forced Induction	311	09-07-2011 03:42 AM
GTM supercharger stage 1 videos	Fezzik	Forced Induction	23	05-10-2011 11:34 AM
GTM Performance Engineering Stage 1 Turn key Supercharger kit In house Install II.	SAM@GTM	Forced Induction	254	08-11-2010 10:59 AM

05-16-2011, 10:41 PM	#33 (permalink)
Nixlimited A True Z Fanatic Join Date: Aug 2009 Location: San Diego Posts: 1,235 Drives: 15 GT-R / 11 Prius Rep Power: 25	Congrats on the results Sam! 450WHP is what I wanted out of the S/C kit and now it looks like there is a clear path to get there. That TQ curve is phenomenal.

05-17-2011, 09:58 AM	#39 (permalink)
NewYorkJon34 A True Z Fanatic Join Date: Jun 2009 Location: Naples, Florida Posts: 3,041 Drives: 09 Fairlady Z Rep Power: 1064	Prob not that hard since it'll be put in at the same time as the stage.2 kit

05-17-2011, 10:02 AM	#40 (permalink)
Alberto Base Member Join Date: May 2011 Location: Mid-A Posts: 9 Drives: Stock 350Z Rep Power: 13	How about a stage 1 @ 10psi if possible or a Stage 2 at 8psi to compare apples to apples...the way you have this comparison laid out doesn't make sense.

05-17-2011, 10:50 AM	#43 (permalink)
NewYorkJon34 A True Z Fanatic Join Date: Jun 2009 Location: Naples, Florida Posts: 3,041 Drives: 09 Fairlady Z Rep Power: 1064	I thought the motor can hold up to 9psi safely, since I have LTH's it might drop the psi but still am curious