STILLEN 370Z Supercharger System - Announcement!!!

Zsteve · 09-10-2010, 09:50 AM

so the kits are only making about 50 more TQ than stock?

Phimosis · 09-10-2010, 10:55 AM

Quote:

Originally Posted by Zsteve

so the kits are only making about 50 more TQ than stock?

Mine went up by 77 lb/ft over bseline with headers, cats, exhaust, g3 intakes.

tomnavone · 09-10-2010, 11:19 AM

Quote:

Originally Posted by Zsteve

so the kits are only making about 50 more TQ than stock?

Im up 66 TQ from bone stock just shy of stillens 106 TQ that they advertised

weiboy718 · 09-10-2010, 11:29 AM

I don't even know what was my baseline lol.

Phimosis · 09-10-2010, 11:48 AM

Quote:

Originally Posted by tomnavone

Im up 66 TQ from bone stock just shy of stillens 106 TQ that they advertised

Tom, when your car goes to Stillen, make sure they do before and after dynos, not just 'after', so you can compares apples to apples. My experience is that stillens dyno is optimistic and you may already be making 410 hp on their dyno.

Also, the 106 lb/ft increase in torque is not apples to apples. The baseline was done at 95 degrees with 25% humidity, compared to post supercharger run done at 65 degrees and 35% humidity. The DA of the baseline is 2437. DA of postsupercharger run is 471. That's going to be worth 20-30 hp right there. They could have deliberately heat soaked the car or ran baseline with hood shut, then post supercharger with hood open, or a bunch of other tricks to tweak the results. Food for thought.

christian370z · 09-10-2010, 01:17 PM

Quote:

Originally Posted by Slynky

And for anyone else caring to prove I'm an idiot...does this system negate any aftermarket CAI?

Yes, you will not be using any stock or aftermarket CAI with these supercharger kits as the filters are relocated completely into the bumper.

Chris_1 · 09-10-2010, 02:34 PM

Well I think they can do a warranty on them, IF they just get someone in each area for the customers with their kits out and have them do a tune on the car for its specific need.

shumby · 09-10-2010, 04:28 PM

Quote:

Originally Posted by Zsteve

so the kits are only making about 50 more TQ than stock?

only the stillen showes this low torque gain. I have 350 FT/LBS of TQ with my GTM set up at only 6 psi.

Zsteve · 09-10-2010, 05:11 PM

Quote:

Originally Posted by shumby

only the stillen showes this low torque gain. I have 350 FT/LBS of TQ with my GTM set up at only 6 psi.

well thats more like it, I dont think I can by a $5K SC for only 50 - 60 more tq.

shumby · 09-10-2010, 05:15 PM

^^^ ya the tq is the reason i stopped at the 6 psi pully as i was worried about putting more tq on the 7AT tranny. But after 7000 miles i think i will talk to Sam about getting the new pully and a new tune to go along with it.

Zsteve · 09-10-2010, 06:32 PM

Quote:

Originally Posted by shumby

^^^ ya the tq is the reason i stopped at the 6 psi pully as i was worried about putting more tq on the 7AT tranny. But after 7000 miles i think i will talk to Sam about getting the new pully and a new tune to go along with it.

Cool, I took off my HFC cats today and I dont know if it really is but I feel like I have more low end tq now. The wheels break loose easier now with the stock cats back on.

OKC370Z · 09-10-2010, 09:57 PM

Since posting this morning I got to thinking about my reference to manifold pressure as it relates to air volume passing through the intake. I inadvertantly stated that the Stillen kit and GTM kit should be producing the same HP/TQ at the same manifold pressures. However, I forgot that Stillen is using their own intake manifold and GTM is using Nissans OEM manifold. This may explain why the GTM kit is making more HP/TQ at the same manifold pressure. It's entirely possible that when going from the prototype manifold to the manufactured manifold something changed and the manifolds supplied are more restictive than the stock manifold. Therefore, the manifold pressure of the Stillen manifold would reach 8 psi with less airflow passing through it than the Stock manifold. Less air volume less power.

Anyone want to test this theory by removing their manifold and then porting and polishing it as much as possible and then reinstall and see the what the results are?

christian370z · 09-11-2010, 01:40 AM

^That sounds entirely plausible, nice job thinking outside the box on this issue! I do have a hard time seeing how the Stillen manifold can be more restrictive than the OEM version but it could also upset the way the air moves through the plenum and into the intake runners.

LiquidZ · 09-11-2010, 01:47 AM

OKC, although you bring up a good point, RCZ's success with this kit leads me to believe that the issue with this kit is solely in the tune and Stillen's mission to remain CARB legal.

mattjk · 09-11-2010, 05:20 AM

Quote:

Originally Posted by OKC370Z

Since posting this morning I got to thinking about my reference to manifold pressure as it relates to air volume passing through the intake. I inadvertantly stated that the Stillen kit and GTM kit should be producing the same HP/TQ at the same manifold pressures. However, I forgot that Stillen is using their own intake manifold and GTM is using Nissans OEM manifold. This may explain why the GTM kit is making more HP/TQ at the same manifold pressure. It's entirely possible that when going from the prototype manifold to the manufactured manifold something changed and the manifolds supplied are more restictive than the stock manifold. Therefore, the manifold pressure of the Stillen manifold would reach 8 psi with less airflow passing through it than the Stock manifold. Less air volume less power.

Anyone want to test this theory by removing their manifold and then porting and polishing it as much as possible and then reinstall and see the what the results are?

I don't like this kit mainly because of the intake manifold. I hope they did not put velocity stacks inside the manifold. Anyone have a picture of the inside?

09-10-2010, 09:50 AM	#1711 (permalink)
Zsteve A True Z Fanatic Join Date: Sep 2009 Location: TX Posts: 3,298 Drives: the 2 balled club Rep Power: 22	so the kits are only making about 50 more TQ than stock? __________________ 2010 LS3 C6 Silver coupe corvette

09-10-2010, 05:15 PM	#1720 (permalink)
shumby Captin Canuck Join Date: Dec 2008 Location: with your mom Age: 44 Posts: 6,288 Drives: your sister Rep Power: 236	^^^ ya the tq is the reason i stopped at the 6 psi pully as i was worried about putting more tq on the 7AT tranny. But after 7000 miles i think i will talk to Sam about getting the new pully and a new tune to go along with it. __________________ 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

09-10-2010, 09:57 PM	#1722 (permalink)
OKC370Z Base Member Join Date: Jul 2009 Location: Oklahoma City Posts: 46 Drives: 09 370Z Grey Rep Power: 16	I wonder? Since posting this morning I got to thinking about my reference to manifold pressure as it relates to air volume passing through the intake. I inadvertantly stated that the Stillen kit and GTM kit should be producing the same HP/TQ at the same manifold pressures. However, I forgot that Stillen is using their own intake manifold and GTM is using Nissans OEM manifold. This may explain why the GTM kit is making more HP/TQ at the same manifold pressure. It's entirely possible that when going from the prototype manifold to the manufactured manifold something changed and the manifolds supplied are more restictive than the stock manifold. Therefore, the manifold pressure of the Stillen manifold would reach 8 psi with less airflow passing through it than the Stock manifold. Less air volume less power. Anyone want to test this theory by removing their manifold and then porting and polishing it as much as possible and then reinstall and see the what the results are? Last edited by OKC370Z; 09-10-2010 at 10:06 PM.

09-11-2010, 01:40 AM	#1723 (permalink)
christian370z A True Z Fanatic Join Date: Jul 2010 Location: Newport Beach Posts: 3,900 Drives: 2010 370Z/Saab 900se Rep Power: 432	^That sounds entirely plausible, nice job thinking outside the box on this issue! I do have a hard time seeing how the Stillen manifold can be more restrictive than the OEM version but it could also upset the way the air moves through the plenum and into the intake runners. __________________ -320whp / 259wftlbs- SP Rays -- RE-11s -- SpecialtyZ Tune -- Swift Springs -- Stillen 25R Oil Cooler -- Stillen G3 Intakes -- Berk HFCs -- F.I. 12" CBE -- Stillen Sway Bars -- Es14 Spring -- INGS+1 lip -- CF Spoiler -- GTR Start Button -- VLED Parking Lights -- PWJDM V2 shift knob

09-11-2010, 01:47 AM	#1724 (permalink)
LiquidZ A True Z Fanatic Join Date: Nov 2008 Location: Columbus, OH Posts: 1,940 Drives: Mag. Black 2009 370Z Rep Power: 705	OKC, although you bring up a good point, RCZ's success with this kit leads me to believe that the issue with this kit is solely in the tune and Stillen's mission to remain CARB legal. __________________

09-10-2010, 11:29 AM	#1714 (permalink)
weiboy718 Track Member Join Date: May 2010 Location: Bay Area Posts: 923 Drives: Infiniti G37 Rep Power: 16	I don't even know what was my baseline lol.

09-10-2010, 02:34 PM	#1717 (permalink)
Chris_1 Track Member Join Date: Mar 2010 Location: Statewide Posts: 838 Drives: Nissan 370Z Roadster Rep Power: 16	Well I think they can do a warranty on them, IF they just get someone in each area for the customers with their kits out and have them do a tune on the car for its specific need.

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