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-   -   GTM vs STILLEN sc's (http://www.the370z.com/forced-induction/20470-gtm-vs-stillen-scs.html)

lando76 06-11-2010 07:46 PM

GTM vs STILLEN sc's
 
Just curious how you feel about the two SC. They both are running around the same psi which is 8 I believe. I have read that Stillen has addressed the extra heat that is going to be generated by an already high compression ratio engine. I have not read or found where and how GTM has addressed this issue.

How about build quality, reliability and the safety of the two. Is 8 psi already at the top of what the stock nissan engine can handle. I would not feel comfortable running that close to a possible engine failure if so.

nogoodname 06-11-2010 07:56 PM

I would wait until RCZ and Shumby have their reviews and drove their cars for a bit.

RCZ 06-11-2010 07:59 PM

I think we can safely run a bit more than 8 psi. It should be just fine at 8.

Shumby is having issues with his long tube headers, I might have similar issues with my header/HFC setup. Until both of these are resolved, we aren't going to be able to give you straight answers..

How are we supposed to know about reliability when no one has it installed?

Build quality, I can't speak for the GTM kit because I haven't seen it, but the Stillen one is pretty damn good. All the components are very clean and the kit is just solid.

LateralG'z 06-11-2010 08:03 PM

Why would better flow create issues with forced inductions, SC or Turbos? LTH HFC shouldn't have any effect on the kits performance, only make them better.

Zsteve 06-11-2010 08:03 PM

Quote:

Originally Posted by lando76 (Post 573225)
Just curious how you feel about the two SC. They both are running around the same psi which is 8 I believe. I have read that Stillen has addressed the extra heat that is going to be generated by an already high compression ratio engine. I have not read or found where and how GTM has addressed this issue.

How about build quality, reliability and the safety of the two. Is 8 psi already at the top of what the stock nissan engine can handle. I would not feel comfortable running that close to a possible engine failure if so.

both are using ICs. The FMIC of GTM is a proven product, the one by Stillen since its not a normal one will IMO have to prove it works. I know water to air ICs work just need to see how the one Stillen made does. The GTM FMIC is one that is used thru out FIs so its been proven. And 8 psi isnt as bad as some turbos PSIs.

nogoodname 06-11-2010 08:04 PM

Quote:

Originally Posted by LateralG'z (Post 573259)
Why would better flow create issues with forced inductions, SC or Turbos? LTH HFC shouldn't have any effect on the kits performance, only make them better.

There is such thing as too much flow as we just learned about the VVEL.

Zsteve 06-11-2010 08:10 PM

Quote:

Originally Posted by nogoodname (Post 573264)
There is such thing as too much flow as we just learned about the VVEL.

So Scs dont provide backpressure like turbos?

shumby 06-11-2010 08:11 PM

I have seen both the stillen and GTM kit in person both have excelent build quality. The GTM intercooler will have no issues with dealing with heat.

As to the LTH issue no back pressure is causing it not to build boost do to the overlap of the valve timing. And as NOONE has the VVEL cracked yet it is not a good place to be. I believe RCZ will be ok with his set up as he still has some sort of cat in the system. I am thinking even running test pipes with this sc set up will not work well either. But hey only way to know forsure is to test it like i did with the LTH. But right now if you are going SC route do not get LTH

shumby 06-11-2010 08:13 PM

Quote:

Originally Posted by Zsteve (Post 573282)
So Scs dont provide backpressure like turbos?

no they do not turbos use your exhaust gasses to spin the turbos supplying their owen back pressure. SC are belt driven direct off the engine

RCZ 06-11-2010 08:13 PM

^ FI just lost some sales.

Um, I hope you're right. We'll see soon enough.

Zsteve 06-11-2010 08:15 PM

Quote:

Originally Posted by shumby (Post 573284)
I have seen both the stillen and GTM kit in person both have excelent build quality. The GTM intercooler will have no issues with dealing with heat.

As to the LTH issue no back pressure is causing it not to build boost do to the overlap of the valve timing. And as NOONE has the VVEL cracked yet it is not a good place to be. I believe RCZ will be ok with his set up as he still has some sort of cat in the system. I am thinking even running test pipes with this sc set up will not work well either. But hey only way to know forsure is to test it like i did with the LTH. But right now if you are going SC route do not get LTH

Well like you said all you have to do is go back stock on those items and you will have your awesome powered Z back. Im still jealous and will be waiting to see how the useable power is and how quickly it comes on. I know 1st and 2nd will be tough but Im hoping from there on the car will just grab and pick up like carzy.

Zsteve 06-11-2010 08:16 PM

Quote:

Originally Posted by RCZ (Post 573290)
^ FI just lost some sales.

Um, I hope you're right. We'll see soon enough.

I dont think so. LTH with FI probably wouldnt have added much anyway so anyone that wants a SC will be willing to take those off for the SC. I think I heard themn say any ways not to do LTHs from the beginning.

LateralG'z 06-11-2010 08:18 PM

Quote:

Originally Posted by nogoodname (Post 573264)
There is such thing as too much flow as we just learned about the VVEL.

How is to much flow a problem, ever step under the hoods of full built race cars, they have zero restrictions, LTH with no exhaust and work great. Valve over lap might be the issue but maybe something more than that. Not sure. Seen plenty of full race TT or SC with no restrictions making great power. How come 350Z's are not having the same issue?

shumby 06-11-2010 08:20 PM

No tony had said these would work well with a SC set up. this is obviously not the case.

As for my car everything is stable with it as is and thee are no issues with thcanadian ECU and the tuning.

RCZ 06-11-2010 08:20 PM

Quote:

Originally Posted by Zsteve (Post 573305)
I dont think so. LTH with FI probably wouldnt have added much anyway so anyone that wants a SC will be willing to take those off for the SC. I think I heard themn say any ways not to do LTHs from the beginning.

yeah, but anyone considering superchargers in the future will no longer purchase the lth's.

Zsteve 06-11-2010 08:20 PM

Quote:

Originally Posted by LateralG'z (Post 573310)
How is to much flow a problem, ever step under the hoods of full built race cars, they have zero restrictions, LTH with no exhaust and work great. Valve over lap might be the issue but maybe something more than that. Not sure. Seen plenty of full race TT or SC with no restrictions making great power. How come 350Z's are not having the same issue?

Turbos produce thier own backpressure.

Zsteve 06-11-2010 08:21 PM

Quote:

Originally Posted by RCZ (Post 573314)
yeah, but anyone considering superchargers in the future will no longer purchase the lth's.

Thats true but not evryone will go SC so LTH will still be a good option when staying NA.

shumby 06-11-2010 08:22 PM

Quote:

Originally Posted by LateralG'z (Post 573310)
How is to much flow a problem, ever step under the hoods of full built race cars, they have zero restrictions, LTH with no exhaust and work great. Valve over lap might be the issue but maybe something more than that. Not sure. Seen plenty of full race TT or SC with no restrictions making great power. How come 350Z's are not having the same issue?


please stop filling this thread with info that is not true. The loss of back pressure is the issue. If we could control the VVEL like built race cars then no it would not be an issue. Please sit back read and learn. Ask questions but don't try to state facts

LateralG'z 06-11-2010 08:23 PM

Quote:

Originally Posted by Zsteve (Post 573316)
Turbos produce thier own backpressure.

THANKS FOR THE INFO, didn't know that:shakes head:, there are plenty of full built SC racecars with no exhaust restrictions.

shumby 06-11-2010 08:25 PM

yes but they have full control over their valve timing we do not

Zsteve 06-11-2010 08:25 PM

Im still wanting one, just waiting to see if there are any issues and to see how my finances do after I move the family to Texas. But its got to be useable power on a daily basis.

LateralG'z 06-11-2010 08:25 PM

Quote:

Originally Posted by shumby (Post 573321)
please stop filling this thread with info that is not true. The loss of back pressure is the issue. If we could control the VVEL like built race cars then no it would not be an issue. Please sit back read and learn. Ask questions but don't try to state facts

What have i said that is not true, please enlighten me OB1

shumby 06-11-2010 08:29 PM

ok you are comparing our cars to fully built race cars. that in it self is enough. but the fact you don't even know how a turbo nd SC function is another good one.


If you don't know ask that is not a problem but don't start stating that all SC setups and turbo's work with pipes coming right off the engine.

LateralG'z 06-11-2010 08:37 PM

Lets deflate your head genius your not that bright, first you know nothing about me and second you are merely stating general speculations or prediction that SAM has told you as to your issue, they are not proven facts yet and he is probably trying to figure it out and will with some time. All you have done in the thread is state general info and been a personal assistants voice but that cool if it make you feel important and smart. then compare to a 08 350Z and tell me why they are not having issues? or go call Sam and be his assistant and tell me OB1

shumby 06-11-2010 08:38 PM

yawn trust me kid you are no RCZ so not worth it

shumby 06-11-2010 08:39 PM

wait i might not be that bright i just got the OB1 thing lol

nogoodname 06-11-2010 08:46 PM

We're talking about the VVEL here and not other engines. We all know the timing can not be adjusted yet.

shumby 06-11-2010 08:47 PM

^^^ well not all of us i guess nogood there seems to be at least one that does not. lol

LateralG'z 06-11-2010 08:50 PM

The 08 350Z have VVEL, any other amazing contributions

LateralG'z 06-11-2010 08:51 PM

Isn't this thread about Stillen SC vs GTM or do I need to go back to school and learn to read, not VVEL

nogoodname 06-11-2010 08:51 PM

Quote:

Originally Posted by LateralG'z (Post 573378)
The 08 350Z have VVEL, any other amazing contributions

No, it did not. You're getting confused by the dual intakes the 08 Z had.

blue660r01 06-11-2010 08:52 PM

I knew this wouldnt last long til arguments broke out

shumby 06-11-2010 08:52 PM

yawn

LateralG'z 06-11-2010 08:52 PM

The intakes have nothing to do with Variable Valve timing

nogoodname 06-11-2010 08:53 PM

Quote:

Originally Posted by LateralG'z (Post 573386)
The intakes have nothing to do with Variable Valve timing

08 350z did not have VVEL....


Sure the intakes have nothing to do with it but you probably assume the updated 3.5L had VVEL.

LateralG'z 06-11-2010 08:54 PM

Let me right Yawn so I feel smart YAWN!

shumby 06-11-2010 08:54 PM

see why i just yawn nogood?

Zsteve 06-11-2010 08:54 PM

Quote:

Originally Posted by nogoodname (Post 573388)
08 350z did not have VVEL....

double V = dual intakes right?

theDreamer 06-11-2010 08:54 PM

Variable Valve Event and Lift - Wikipedia, the free encyclopedia
Quote:

Nissan VVEL was first introduced to the US market in late-2007 on the 2008 Infiniti G37 Coupe sporting the new "VVEL" VQ37VHR Nissan VQ Engine (VQ37VHR motor specs: 11.0:1 CR, 95.5mm bore, 86mm stroke, 7500rpm redline).
Can we get back to the two SC kits?

nogoodname 06-11-2010 08:55 PM

Quote:

Originally Posted by Zsteve (Post 573392)
double V = dual intakes right?

LOL.... that must be it!!


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