GTM Stage 2 Supercharger Preliminary Testing Results

Jamaica · 08-22-2011, 09:46 PM

Quote:

Originally Posted by XwChriswX

Forgive me if this was mentioned somewhere else, or if it's just supposed to be 'known' but whats the difference between the Tuner kits and the Turn Key kits?

Quoted from GTM website

All of our Supercharger kits are available in two forms. The tuner kit form, so the professional and the end user have the flexibility of choosing what ever fuel and engine management they may desire and feel comfortable using. The second option being a complete kit including fuel and engine management solutions. With that being said, GTM will also offer an extensive range of fuel system and engine management modules to go with our Supercharger kits.

XwChriswX · 08-22-2011, 09:47 PM

Thanks.

frostyrock7c · 08-22-2011, 09:50 PM

Quote:

Originally Posted by Jamaica@UAMotorsports

Price is on there website guys!

Early order was worth it!

Jamaica · 08-22-2011, 09:53 PM

Quote:

Originally Posted by frostyrock7c

Early order was worth it!

very true!

XwChriswX · 08-22-2011, 09:54 PM

Is it possible to say the price increase now that prices are posted?

And does this mean that we'll have the full press release out soon? Or is that still in the works?

Still wanna see justification that these don't work with LTHs other than just comments.

christian370z · 08-22-2011, 11:34 PM

Quote:

Originally Posted by XwChriswX

Is it possible to say the price increase now that prices are posted?

And does this mean that we'll have the full press release out soon? Or is that still in the works?

Still wanna see justification that these don't work with LTHs other than just comments.

They do work with LTHs, you just might see slightly less power as seen on some stage 1 SC kits when installed on a car with LTHs. However, there are no stage 2 SC 370Zs out there yet with LTHs so the additional flow from the larger compressor might mean there won't be the loss in power.

XwChriswX · 08-22-2011, 11:41 PM

Quote:

Originally Posted by christian370z

They do work with LTHs, you just might see slightly less power as seen on some stage 1 SC kits when installed on a car with LTHs. However, there are no stage 2 SC 370Zs out there yet with LTHs so the additional flow from the larger compressor might mean there won't be the loss in power.

It has nothing to do with power loss, it's said that the headers + the larger compressor simply won't fit together. Yet there hasn't been anything to substantiate this. I'm not saying anyone isn't being truthful, just I'd like to see some sort of labor evidence, or pics, or something describing why with a little bit more explanation than just 'it doesn't fit.'

I fully expect to see that if it can be worked to make these fit to see even more power than with stock headers.

1slow370 · 08-23-2011, 04:46 AM

^maybe if you used a smaller pulley to get your psi back but without tuning the cam timing or shoving more air in you'll struggle to make more power with headers. Our overlap is soo bad for FI that a restrictive exhaust is actually helping to keep the air and fuel in the chamber.

wstar · 08-23-2011, 08:36 AM

Does anyone have hard confirmation that our cars do in fact have significant overlap?

theDreamer · 08-23-2011, 10:23 AM

Less power? I made 400whp which is just a few below Sam and I was running in 100+ degree weather.
The LTH in the end showed no loss in PSI or power, which means if we see VVEL being useful I would say the LTH will be the best bargain for a SC setup like every other car ever manufacture running a SC. In the end, you want to lose PSI with the LTH and be able to hold the power level which is what happens when a system is fully tuned.

darron · 08-23-2011, 11:54 AM

So do we have a estimate on when VVEL is gonna be cracked for tuning to make this problem not a factor anymore?

theDreamer · 08-23-2011, 11:59 AM

Quote:

Originally Posted by darron

So do we have a estimate on when VVEL is gonna be cracked for tuning to make this problem not a factor anymore?

Soon
In a more realistic answer, no one knows. It all comes down to software for tuning, hardware needed (do we need a stand alone ECU), etc.

frostyrock7c · 08-23-2011, 08:45 PM

Quote:

Originally Posted by XwChriswX

It has nothing to do with power loss, it's said that the headers + the larger compressor simply won't fit together. Yet there hasn't been anything to substantiate this. I'm not saying anyone isn't being truthful, just I'd like to see some sort of labor evidence, or pics, or something describing why with a little bit more explanation than just 'it doesn't fit.'

I fully expect to see that if it can be worked to make these fit to see even more power than with stock headers.

I think the size of the compressor and the location of the air filter are why Stage 2 isn't compatible with LTH. Check out the press release photos... the air filter mounts behind the compressor at the end of a short tube.

XwChriswX · 08-23-2011, 08:47 PM

Quote:

Originally Posted by frostyrock7c

I think the size of the compressor and the location of the air filter are why Stage 2 isn't compatible with LTH. Check out the press release photos... the air filter mounts behind the compressor at the end of a short tube.

I know that's been the comment, then how do you explain it working with the Stock headers when they have a heat shield around them, and if you look at the Stock headers next to the FI LTH's they have the same profile and pipe routing... So It just begs the question for some sort of explanation...

frostyrock7c · 08-23-2011, 08:50 PM

Quote:

Originally Posted by XwChriswX

I know that's been the comment, then how do you explain it working with the Stock headers when they have a heat shield around them, and if you look at the Stock headers next to the FI LTH's they have the same profile and pipe routing... So It just begs the question for some sort of explanation...

I guess we will find out in a few weeks. I won't be going with LTH but I will post some installed photos if no one beats me to it.

08-22-2011, 09:47 PM	#557 (permalink)
XwChriswX WFLYIDNNE Join Date: Jul 2009 Location: In The Fastlane Posts: 50,648 Drives: 02 GDB WRX Rep Power: 452	Thanks. __________________ Bonnie - Stage 2, Audio build coming this fall! R.I.P. Abby 3/29/10 - 3/30/14

08-22-2011, 09:54 PM	#560 (permalink)
XwChriswX WFLYIDNNE Join Date: Jul 2009 Location: In The Fastlane Posts: 50,648 Drives: 02 GDB WRX Rep Power: 452	Is it possible to say the price increase now that prices are posted? And does this mean that we'll have the full press release out soon? Or is that still in the works? Still wanna see justification that these don't work with LTHs other than just comments. __________________ Bonnie - Stage 2, Audio build coming this fall! R.I.P. Abby 3/29/10 - 3/30/14

08-23-2011, 04:46 AM	#563 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7251	^maybe if you used a smaller pulley to get your psi back but without tuning the cam timing or shoving more air in you'll struggle to make more power with headers. Our overlap is soo bad for FI that a restrictive exhaust is actually helping to keep the air and fuel in the chamber. __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

08-23-2011, 08:36 AM	#564 (permalink)
wstar A True Z Fanatic Join Date: Mar 2009 Location: Houston, TX Posts: 4,024 Drives: too slow Rep Power: 3594	Does anyone have hard confirmation that our cars do in fact have significant overlap? __________________ 7AT Track Car! Journal thread / Car setup details

08-23-2011, 10:23 AM	#565 (permalink)
theDreamer A True Z Fanatic Join Date: Feb 2009 Location: Texas Posts: 30,879 Drives: 370z Rep Power: 4210	Less power? I made 400whp which is just a few below Sam and I was running in 100+ degree weather. The LTH in the end showed no loss in PSI or power, which means if we see VVEL being useful I would say the LTH will be the best bargain for a SC setup like every other car ever manufacture running a SC. In the end, you want to lose PSI with the LTH and be able to hold the power level which is what happens when a system is fully tuned. __________________ theDreamer's Z // Fast Intentions // Uprev // GTM // HKS // TEIN theDreamer's Silvia // URAS // GREDDY Houston Zs // Facebook // Twitter // Instagram

08-23-2011, 11:54 AM	#566 (permalink)
darron Base Member Join Date: Aug 2011 Location: texas Posts: 21 Drives: 91 300zx WTF fast Rep Power: 14	So do we have a estimate on when VVEL is gonna be cracked for tuning to make this problem not a factor anymore?

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