GTM Performance Engineering 370Z SUPERCHARGER KIT PRESS RELEASE

DannyGT · 03-12-2010, 03:38 PM

In to see the results of the GTM kit WITH an exhaust system. If people N/A were making the gains they were just imagine when tuned around a full exhaust system. The numbers will EASILY be on par or 10+whp more than the other kit.

Honestly tho, who cares if they are within 10whp of each other. It will literally come down to driver skill/preference at that point.

Love the drama....LOL

Zsteve · 03-12-2010, 03:41 PM

Quote:

Originally Posted by DannyGT

In to see the results of the GTM kit WITH an exhaust system. If people N/A were making the gains they were just imagine when tuned around a full exhaust system. The numbers will EASILY be on par or 10+whp more than the other kit.

Honestly tho, who cares if they are within 10whp of each other. It will literally come down to driver skill/preference at that point.

Love the drama....LOL

true, a question I asked in another thread was, between 4-7K rpms, which is going to make you faster, the tq or hp? I know both really but if you could only choose one.

Also if a SC is not working at its best efficiency, what does that really mean? I know you are not at max power then but would it effect mpg, how hard the engine works, etc.?

LiquidZ · 03-12-2010, 04:53 PM

Quote:

Originally Posted by Zsteve

true, a question I asked in another thread was, between 4-7K rpms, which is going to make you faster, the tq or hp? I know both really but if you could only choose one.

Also if a SC is not working at its best efficiency, what does that really mean? I know you are not at max power then but would it effect mpg, how hard the engine works, etc.?

Efficiency is referring the compressor's adiabatic efficiency, or how much heat is added to the air charge when compressed.

You eventually get to a point where you can't make any power
because the intake air temperatures are too high.

Zsteve · 03-12-2010, 10:42 PM

So where is GTM? They have a few questions they need to answer.

live2themaxuk · 03-13-2010, 05:23 AM

busy perfecting the tuning for stage 2 and 3

Quote:

Originally Posted by Zsteve

So where is GTM? They have a few questions they need to answer.

G35s-Q8 · 03-13-2010, 06:40 AM

Stillen S/C just annouced, i think GTM well face a tough competitor since Stillen made 438rwhp and the price is just $800 more.

OMG37 · 03-13-2010, 09:05 AM

Quote:

Originally Posted by G35s-Q8

Stillen S/C just annouced, i think GTM well face a tough competitor since Stillen made 438rwhp and the price is just $800 more.

Stillen did it with a Stillen CBE on the kit as well. They should have mentioned that in their press release too if you ask me. You aren't advertising correctly on what the kit's performance itself when you show numbers that have a CBE in it too.

GTM will surely beat or match their numbers with their stage 1 kit. Sam just doesn't have the time right now to put a CBE on either of the two cars because he's busy working on the stage 2 and 3.

Buddy Revell · 03-13-2010, 11:18 AM

Quote:

Originally Posted by G35s-Q8

Stillen S/C just annouced, i think GTM well face a tough competitor since Stillen made 438rwhp and the price is just $800 more.

The difference is $900, right? That's fairly significant, IMO. Could be put towards a couple additional supporting mods like an oil cooler, clutch, flywheel, gauges, bigger/stickier rear tires, or maybe some suspension upgrades.

SAM@GTM · 03-13-2010, 05:39 PM

Quote:

Originally Posted by Zsteve

So where is GTM? They have a few questions they need to answer.

Just need to finish few things on the dyno and will be here to answer them all, including your other thread.

Sam

shumby · 03-13-2010, 09:22 AM

ya i noticed that in stillens release. i was hoping someone else would say something about it as I am seen as a rouble maker. I cannot wait for my stage 2 kit with CBE and LTH

Togo · 03-13-2010, 09:28 AM

Wow I didn't realize they did that with a CBE on. Personally the low end TQ on the Stillen wasn't that great, i thought. Looked nearly stock in the low RPMs.

Phimosis · 03-13-2010, 02:55 PM

Quote:

Originally Posted by Togo

Wow I didn't realize they did that with a CBE on. Personally the low end TQ on the Stillen wasn't that great, i thought. Looked nearly stock in the low RPMs.

Nearly stock torque #'s at low rpm is typical for centrifugal supercahrgers. The faster you spin them, the more boost they make. Positive displacement superchargers, on the other hand, reach maximum boost at roughly 1/3rd of maximum operating speed, meaning you have full boost at 2,500 engine rpm.

The torque curve that the GTM kit makes looks typical for a positive displacement supercharger and I'm amazed that they are getting that out of a centrifugal charger.

Togo · 03-13-2010, 03:01 PM

Quote:

Originally Posted by Phimosis

Nearly stock torque #'s at low rpm is typical for centrifugal supercahrgers. The faster you spin them, the more boost they make. Positive displacement superchargers, on the other hand, reach maximum boost at roughly 1/3rd of maximum operating speed, meaning you have full boost at 2,500 engine rpm.

The torque curve that the GTM kit makes looks typical for a positive displacement supercharger and I'm amazed that they are getting that out of a centrifugal charger.

Oh I'm aware of the TQ characteristics with a Centrifugal SC, but was just shocked to see such results from the GTM. Personally, I think the low end TQ would be more fun to have. I mean top end HP is great and all but when you are already at 400+ HP what's another 20 over some serious TQ 500-1000 RPM sooner in the powerband. Thats just my opinion though.

LiquidZ · 03-13-2010, 10:23 AM

They mentioned they had a CBE well before the press release.

Mike · 03-13-2010, 11:29 AM

Quote:

Originally Posted by LiquidZ

They mentioned they had a CBE well before the press release.

and really, have you ever heard of anyone who went forced induction and kept the stock exhaust?

03-12-2010, 03:38 PM	#1 (permalink)
DannyGT Track Member Join Date: Jan 2009 Location: Jersey Posts: 919 Drives: 370Z (SOLD) Rep Power: 280	In to see the results of the GTM kit WITH an exhaust system. If people N/A were making the gains they were just imagine when tuned around a full exhaust system. The numbers will EASILY be on par or 10+whp more than the other kit. Honestly tho, who cares if they are within 10whp of each other. It will literally come down to driver skill/preference at that point. Love the drama....LOL __________________ Performance GTM Stage 1 SC, GTM Res.Test Pipes, Invidia Gemini Exhaust, GTM HD Oil Cooler Wheels & Suspension AME Tracer TM02's 19x9.5F 19x10.5R w/ 265x35F & 305x30R, Hotchkis Sways, BC (BR) Racing Coilovers (Car Sold)

03-12-2010, 10:42 PM	#4 (permalink)
Zsteve A True Z Fanatic Join Date: Sep 2009 Location: TX Posts: 3,298 Drives: the 2 balled club Rep Power: 22	So where is GTM? They have a few questions they need to answer. __________________ 2010 LS3 C6 Silver coupe corvette

03-13-2010, 09:22 AM	#10 (permalink)
shumby Captin Canuck Join Date: Dec 2008 Location: with your mom Age: 45 Posts: 6,288 Drives: your sister Rep Power: 237	ya i noticed that in stillens release. i was hoping someone else would say something about it as I am seen as a rouble maker. I cannot wait for my stage 2 kit with CBE and LTH __________________ Originally Posted by SAM@GTM Engine detonation is not normal and it should never never happen, and whoever told that need to do something else for living . Sam

03-13-2010, 09:28 AM	#11 (permalink)
Togo A True Z Fanatic Join Date: May 2009 Location: E. Northport, NY Posts: 7,597 Drives: Stuff Rep Power: 658	Wow I didn't realize they did that with a CBE on. Personally the low end TQ on the Stillen wasn't that great, i thought. Looked nearly stock in the low RPMs. __________________ This will decimate all after you put about fifteen grand in it or more, and if we have to, overnight parts from Japan. Joe Clem and Koeppel Nissan

03-13-2010, 10:23 AM	#14 (permalink)
LiquidZ A True Z Fanatic Join Date: Nov 2008 Location: Columbus, OH Posts: 1,940 Drives: Mag. Black 2009 370Z Rep Power: 705	They mentioned they had a CBE well before the press release. __________________

03-13-2010, 06:40 AM	#6 (permalink)
G35s-Q8 Base Member Join Date: Mar 2010 Location: Kuwait Posts: 20 Drives: 08 G35 Sedan Rep Power: 16	Stillen S/C just annouced, i think GTM well face a tough competitor since Stillen made 438rwhp and the price is just $800 more.

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