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-   -   GTM Performance Engineering 370Z SUPERCHARGER KIT PRESS RELEASE (http://www.the370z.com/forced-induction/15233-gtm-performance-engineering-370z-supercharger-kit-press-release.html)

RCZ 09-17-2010 11:08 AM

So these pieces are making your kit do what exactly? How much power did the car lose?

So they had to make some pieces thicker because there was a danger that it would fail and now the new pieces are too restrictive? Am I reading this right?

Does that mean that the cars that are out there already, like Shumby's, have cast pieces that are too thin?

theDreamer 09-17-2010 11:10 AM

Quote:

Originally Posted by RCZ (Post 725486)
So these pieces are making your kit do what exactly? How much power did the car lose?

So they had to make some pieces thicker because there was a danger that it would fail and now the new pieces are too restrictive? Am I reading this right?

Does that mean that the cars that are out there already, like Shumby's, have cast pieces that are too thin?

No, the pieces out right now are fine, but Sam went back and wanted to improve the design and is doing so. One reason is to maybe help stage 1 kits play better with LTHs, no test done yet as I am waiting on my piece currently also.

RCZ 09-17-2010 11:13 AM

Ah ok, so Sam is boring out cast pieces so they flow better...so that can help the stg1 kit make use of the LTH?

DannyGT 09-17-2010 11:14 AM

I'm not sure where I said they had to make it 'thicker' because it was to thin.

here is how it works...

You create a hand fabricated piece, be it from exhaust piping/aluminium/whatever. You then send it out to get replicated in casted form so the cost is lower than hand crafting it every single time. Well the casting company made it to thick on the inside which is basically choking the compressor. Thats it. Once it gets bored out to the same diameter as the prototype piece everything goes back to normal.

See..that was easy.

SAM@GTM 09-17-2010 11:17 AM

Every kit that is out there is 100 % on the car and beaning driving by the customers. there is no cars that are down or have any sort of a safety or driveabilty problem or a check engine light or any thing like that . We did discover a little inconsistency in the intake peace which could lead to a boost taper over 6500 rpm, The rest of the power band is 100 % where is suppose to be . also few customer reported a little excessive flutter from the by pass valve on some vehicles which we are addressing right now . Overall customer are getting these kit, putting them on and driving away .

Sam

RCZ 09-17-2010 11:18 AM

You didnt, I'm just trying to figure out whats going on since everyone's been quiet about it lately and I'm curious to see what third party users are getting power wise from this kit.

RCZ 09-17-2010 11:19 AM

Quote:

Originally Posted by SAM@GTM (Post 725515)
Every kit that is out there is 100 % on the car and beaning driving by the customer there is no cars that is down or have any sort of a safety or drivebilty problem or a check engine light or any thing like that . We did discover a little inconsistency in the intake peace which could lead to a boost taper over 6500 rpm the rest of the power band is 100 % whee is suppose to be . also few customer reported a little excessive flutter from the by pass valve on some vehicles which we are addressing right now . overall customer are getting these kit putting them on and driving away .

Sam


Thanks for the response. Looking forward to results.

SAM@GTM 09-17-2010 11:26 AM

Quote:

Originally Posted by theDreamer (Post 725492)
No, the pieces out right now are fine, but Sam went back and wanted to improve the design and is doing so. One reason is to maybe help stage 1 kits play better with LTHs, no test done yet as I am waiting on my piece currently also.

+1

Dreamer and the Baker tuning group in Houston have been kind enough to allows us to see how we can optimize the LTH and the Supercharge kit .

Thank you Matt .

Sam

theDreamer 09-17-2010 11:27 AM

Quote:

Originally Posted by SAM@GTM (Post 725534)
+1

Dreamer and the Baker tuning group in Houston have been kind enough to allows us to see how we can optimize the LTH and the Supercharge kit .

Thank you Matt .

Sam

:tup: Glad to help.

Fezzik 09-17-2010 12:43 PM

I've got my kit on order Stage 1. I'm doing a base dyno and then doing another dyno after the install. engine has 1200 miles on it.

christian370z 09-17-2010 04:52 PM

Disregarding the CARB visual inspection, would stage 1 technically allow the car to pass the emissions portion of the test?

SAM@GTM 09-17-2010 05:05 PM

Quote:

Originally Posted by christian370z (Post 725901)
Disregarding the CARB visual inspection, would stage 1 technically allow the car to pass the emissions portion of the test?

Yes it does .

Sam

LiquidZ 09-17-2010 06:24 PM

Quote:

Originally Posted by Staples (Post 725413)
Stage 2 is going to offer the 91 size compressor housing which is pretty much the biggest unit Rotrex offers in the C38 trim. This will be for the people that want to use longtube headers or test pipes (or just want to make more power in general). The stage 1 is too small to keep up with the lessen back-pressure, so if you have anything besides high flow cats and catback, your best bet is Stage 2.

The C38-91 is available now?

shabarivas 09-17-2010 06:31 PM

Im lazy and dont want to search thru the 52 pages here - but how far along are you in your CARB approval? This is a major factor for me. Looking forward to doing more research into your products.

Staples 09-17-2010 09:49 PM

Quote:

Originally Posted by LiquidZ (Post 725990)
The C38-91 is available now?

GTM is waiting on the housings and a couple other fabricated pieces.

christian370z 09-17-2010 10:43 PM

Quote:

Originally Posted by SAM@GTM (Post 725914)
Yes it does .

Sam

Thanks Sam, that is perfect. I heard a lot about you guys from Seb at specialtyZ, I am definately going with something GTM when I am going FI.

Buddy Revell 09-18-2010 10:47 AM

Yup, SAM and DannyGT pretty much summed it up. That being the case, I'm probably gonna hold off on a full review of the SC kit until I get my bypass valve flutter and intake pipe taken care of. But if anyone wants to see pics of the kit on my car, SAM posted it up on another thread. My car is the IP G37 with the black piping.

Neo187H 09-18-2010 11:27 AM

Quote:

Originally Posted by SAM@GTM (Post 725914)
Yes it does .

Sam


Assuming it passes the CARB tests as it stands, this kit allows the emissions monitors to set with no CEL? Meaning the AIR, cat test, evap test, so on an so on, these are needed to pass NYS inspection.

theDreamer 09-18-2010 11:32 AM

Quote:

Originally Posted by Neo187H (Post 726604)
Assuming it passes the CARB tests as it stands, this kit allows the emissions monitors to set with no CEL? Meaning the AIR, cat test, evap test, so on an so on, these are needed to pass NYS inspection.

If it passes carb it will probably pass the NYS inspections as CARB is the hardest level to pass currently.

Neo187H 09-18-2010 04:35 PM

Quote:

Originally Posted by theDreamer (Post 726611)
If it passes carb it will probably pass the NYS inspections as CARB is the hardest level to pass currently.

Thats what I was thinking but wasn't positive and that would be one hell of a costly mistake only to realize I have to take it off every year just to pass NYSI

christian370z 09-18-2010 05:55 PM

Quote:

Originally Posted by Neo187H (Post 726871)
Thats what I was thinking but wasn't positive and that would be one hell of a costly mistake only to realize I have to take it off every year just to pass NYSI

Yeah, you can rest assured that you can pass any emissions testing anywhere in the country if it meets or exceeds the CARB standards.

MMC Racing 09-28-2010 08:25 PM

Bump - How is CARB certification coming? ETA?

ARFCOM 09-29-2010 06:55 PM

Can you please post a version with out that music??

Very interested so far though.

SAM@GTM 09-29-2010 07:09 PM

Quote:

Originally Posted by MMC Racing (Post 741718)
Bump - How is CARB certification coming? ETA?

Don't have an exact ETA yet, We had a couple distraction that slow down the process. But it will happen .

Sam

SAM@GTM 09-29-2010 07:09 PM

Quote:

Originally Posted by ARFCOM (Post 743321)
Can you please post a version with out that music??

Very interested so far though.

I will see what i can do .

Sam

redroadster10 09-30-2010 06:39 AM

is this system able to be put on without engine removal?

Fezzik 09-30-2010 07:40 AM

Yes. This can be installed without removing the engine.

redroadster10 09-30-2010 07:47 AM

that is what i thought just had to make sure, would love to have one along with everyone else

redroadster10 09-30-2010 07:47 AM

is it an easy instal as well?

biggersNISMO 09-30-2010 08:05 AM

^^^ yes

bullitt5897 09-30-2010 09:41 AM

I heard the G37 they had in the shop with the SC kit on it and it sounds so sexy! It's not loud but it does sound menacing!

GUTCH 09-30-2010 10:35 AM

Is there a thread somewhere with that (GTM 370Z SUPERCHARGER 550BHP/400 FT OF TORQUE 460 RWHP 360 RWTQ.THE MASTERPIECE, Yellow 370Z) build?

ARFCOM 09-30-2010 07:36 PM

Quote:

Originally Posted by Zsteve (Post 438425)
Sam the new oil lines are sitting on each other that wont be a problem with vibration or anything will it?

I was wondering about that and the fact that there's no support for them between their end connectors.

Hopefully by the time I finish reading this thread (I'm on page 17 or so) to the end I'll see an answer to this.

This all looks great so far BTW!!!

ARFCOM 09-30-2010 07:38 PM

Quote:

Originally Posted by B1nks (Post 438623)
I didn't see "Stillen" anywhere in his post. :icon17:

I'm reading this thread from the beginning and I have to say it's an absolute breath of fresh air so far, compared to the Stillen SC thread.

shumby 09-30-2010 08:04 PM

^^^ nice to see someone doing real research on here. Feel free to drop me a PM if you have any questions abiout the SC i have the 2nd one ever installed.

Valentino 09-30-2010 09:49 PM

Quote:

Originally Posted by shumby (Post 745216)
^^^ nice to see someone doing real research on here.

:iagree:

ARFCOM 09-30-2010 10:21 PM

Just finished reading all 54 pages.

I was really hoping to see some 1/4 mile times.

It's good see there are no major problems with the GTM SC kit.

It was pretty obvious to me that one of the frequent posters in this thread is very pro-Stillen. :rofl2:

If I wasn't leaving the country on deployment this January I'd very likely be purchasing this GTM SC kit, but it's gonna have to wait till I get back late next year. I'll definitely keep current on this kit in the mean time.

fstrnldr 09-30-2010 11:21 PM

Quote:

Originally Posted by ARFCOM (Post 745183)
I was wondering about that and the fact that there's no support for them between their end connectors.

Hopefully by the time I finish reading this thread (I'm on page 17 or so) to the end I'll see an answer to this.

This all looks great so far BTW!!!

I assume this was referring to the oil filter relocation. You have to remember that the oil filter housing is now stationary on the chassis, so you have to have flex in the lines to allow the engine to move independent of the filter. If you have them mounted too rigidly you would have issues.

shumby 10-01-2010 07:03 PM

Well here it is my first real issue with the GTM SC kit. I have had it for some time now and have 8000 ish miles on it. I am very upset that Sam did not tell me about this issue. I am getting ready to take my summer tires off and put my winters on. Well there is nothing left of my summers. I am so upset right now. If I had knowen that this Kit was going to be so fun to drive and wear off my tires so fast from all the fast starts i do i would never have gotten it. Or i would have went with the stillen kit and not had to worrie about it due to the low power and in some cases not being able to drive it at all. Thanks alot sam now i got to buy new tires.




























ahahahhahahahah

Chris@FsP 10-01-2010 07:27 PM

Quote:

Originally Posted by shumby (Post 746979)
Well here it is my first real issue with the GTM SC kit. I have had it for some time now and have 8000 ish miles on it. I am very upset that Sam did not tell me about this issue. I am getting ready to take my summer tires off and put my winters on. Well there is nothing left of my summers. I am so upset right now. If I had knowen that this Kit was going to be so fun to drive and wear off my tires so fast from all the fast starts i do i would never have gotten it. Or i would have went with the stillen kit and not had to worrie about it due to the low power and in some cases not being able to drive it at all. Thanks alot sam now i got to buy new tires.




























ahahahhahahahah

Dude, you kill me :roflpuke2:


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