STILLEN 370Z Supercharger System - Announcement!!!

roplusbee · 09-09-2010, 10:22 AM

*Gasp*
<Off-topic>

Maybe this is a hidden message telling me to save up longer and go TT. I have LTHs coming though......................

</Off-topic>

Perhaps Stillen needs to give up more information about the engineering behind their kit to assist Shops and DIYers with installation and tuning of this application. It seems like history is repeating itself..............

biggersNISMO · 09-09-2010, 10:36 AM

Let's hope that history DOES NOT repeat itself. The majority of 350z Stillen SC users ditched their SC

roplusbee · 09-09-2010, 10:52 AM

Quote:

Originally Posted by biggersNISMO

Let's hope that history DOES NOT repeat itself. The majority of 350z Stillen SC users ditched their SC

Unfortunately, we seem to be headed in that direction. I don't remember folks having these kind of issues with Z33 installs though............

FuszNissan · 09-09-2010, 11:00 AM

At least you didn't have to buy a new hood

Phimosis · 09-09-2010, 12:32 PM

Quote:

Originally Posted by Lug

It would cost him even more money but it would be a great data point in trying to answer the question of whether a too free flowing exhaust negatively effects the actual numbers when SCing.

syperchargers have been used in racing for more than 60 years now. Have you ever seen a dragsters that they put cats or some other form of increased exhaust restriction on it for the sake of making
More power?

tomnavone · 09-09-2010, 01:00 PM

Here is the dyno with the supercharger installed and yesterday the dyno with the new tune. Lost 20 hp on the new tune. Anyone having luck with the new tune?

tomnavone · 09-09-2010, 02:46 PM

Stillen is picking up my car next week to take it to their shop to finally get this thing fixed.

Lug · 09-09-2010, 03:02 PM

Quote:

Originally Posted by Phimosis

syperchargers have been used in racing for more than 60 years now. Have you ever seen a dragsters that they put cats or some other form of increased exhaust restriction on it for the sake of making
More power?

Those are almost exclusively roots types. I'm not saying I agree, just that this rumor has been seen for years and I've even seen some manufactureres allude to a too unrestricted out flow. I can't figure out why this would be but both SC applications seem to have a occational problem when the standard exhaust was changed. Might be coincidence, might not. Just an easy way to find out as it's the most significant delta in his car.

weiboy718 · 09-09-2010, 03:30 PM

Quote:

Originally Posted by tomnavone

Stillen is picking up my car next week to take it to their shop to finally get this thing fixed.

That's very cool!

roplusbee · 09-09-2010, 03:33 PM

That's wassup. Let us know how it turns out.

Neo187H · 09-09-2010, 03:50 PM

How is it that people are still debating over this exhaust thing? Its been proven on Shumby's car that the extra flow from the exhaust causes a loss of boost and thereby power. This is due to the overlap of the valves letting the intake charge flow right out of the cylinder and into the exhaust before it can ever make power.

The issue is valve overlap, the band-aid solution is to increase exhaust backpressure to stop the intake charge from flowing right out of the cylinder. NA engines want more valve overlap than FI applications to increase exhaust scavenging and such while FI applications dont want it because this kind of thing happens.

So until someone cracks the VVEL control module and allows tuners to change valve timing we will be stuck with this issue, increase the boost to make up for boost "lost" or increase exhaust backpressure.

Edit: I should add in that this is what I suspect to be the issue based on my knowledge, I can't say this is for sure whats wrong with it as I don't exactly have the means to back up that statement.

Joebarchuck · 09-09-2010, 05:17 PM

Can we have an official Stillen answer on all these problems and differences in between their test cars and the ones from customers. They really need to have an official answer as to avoid any further damage to their Stillen SC brand.

Despite all of these issues, I may still go for the Stillen SC as it is most likely the most reliable over time nonetheless they absolutely need to address the low HP gain people on here have been having. You cannot advertise 155HP gain and once install only get 80HP.

We absolutely need some official communication from Stillen.

shumby · 09-09-2010, 05:25 PM

^^^ WTF are you basing more reliable over time on. so far I have the most miles but on any SC set up and it is GTM. No issues and did everything I asked of it. Stillen has a long track record of dissapointing the infiniti/nissan crowd.

Zsteve · 09-09-2010, 05:35 PM

Quote:

Originally Posted by shumby

^^^ WTF are you basing more reliable over time on. so far I have the most miles but on any SC set up and it is GTM. No issues and did everything I asked of it. Stillen has a long track record of dissapointing the infiniti/nissan crowd.

Did you ask it for some sweet looking female companian in the passenger seat? Thats gonna be one of my demands out of GTMs SC. By the way how many hours did your install take?

shumby · 09-09-2010, 05:42 PM

Yes i did ask it that and boom. My sxuper hot wife was in the car with me. lol. My install took a long time. but i had alot of other work done at GTM at the same time with some custom work for my oil and tranny coolers plus the Camp II install. I did lie it did not do everytrhing i asked of it. I asked it to get me more BJ's but that has not happened yet.

09-09-2010, 10:22 AM	#1681 (permalink)
roplusbee A True Z Fanatic Join Date: Dec 2009 Location: Killeen, TX Posts: 2,360 Drives: 2007 350Z NISMO Rep Power: 22	Gasp <Off-topic> Maybe this is a hidden message telling me to save up longer and go TT. I have LTHs coming though...................... </Off-topic> Perhaps Stillen needs to give up more information about the engineering behind their kit to assist Shops and DIYers with installation and tuning of this application. It seems like history is repeating itself.............. __________________ 2007 350Z NISMO #0618: Zerolift \| UPREV \| F.I. \| Greddy \| Competition Clutch \| Injector Dynamics \| Aeromotive \| Pioneer \| JL

09-09-2010, 10:36 AM	#1682 (permalink)
biggersNISMO Base Member Join Date: Dec 2009 Location: Lakewood... Green Mtn.. Posts: 102 Drives: Z Rep Power: 15	Let's hope that history DOES NOT repeat itself. The majority of 350z Stillen SC users ditched their SC __________________ an awkward morning beats a boring night CONOC.NET

09-09-2010, 11:00 AM	#1684 (permalink)
FuszNissan A True Z Fanatic Join Date: May 2009 Location: St. Louis Posts: 14,275 Drives: Pure Sex Rep Power: 542	At least you didn't have to buy a new hood __________________ Mods: Too Many to list! LouFuszNissan ZDAYZ 2012

09-09-2010, 02:46 PM	#1687 (permalink)
tomnavone Track Member Join Date: Apr 2009 Location: S.F. Bay Area Posts: 723 Drives: Supercharged 370z Rep Power: 17	Stillen is picking up my car next week to take it to their shop to finally get this thing fixed. __________________ GTM Supercharger/HKS Camp2/Berk cbe/Motordyne art pipes/Hotchkis sways/ Eibach Springs/ Black Volk TE37/Bridgestone S-04 Powered by Last edited by tomnavone; 09-09-2010 at 02:51 PM.

09-09-2010, 03:33 PM	#1690 (permalink)
roplusbee A True Z Fanatic Join Date: Dec 2009 Location: Killeen, TX Posts: 2,360 Drives: 2007 350Z NISMO Rep Power: 22	That's wassup. Let us know how it turns out. __________________ 2007 350Z NISMO #0618: Zerolift \| UPREV \| F.I. \| Greddy \| Competition Clutch \| Injector Dynamics \| Aeromotive \| Pioneer \| JL

09-09-2010, 03:50 PM	#1691 (permalink)
Neo187H Enthusiast Member Join Date: Jan 2009 Location: Albany, NY Posts: 302 Drives: PW 370Z Rep Power: 16	How is it that people are still debating over this exhaust thing? Its been proven on Shumby's car that the extra flow from the exhaust causes a loss of boost and thereby power. This is due to the overlap of the valves letting the intake charge flow right out of the cylinder and into the exhaust before it can ever make power. The issue is valve overlap, the band-aid solution is to increase exhaust backpressure to stop the intake charge from flowing right out of the cylinder. NA engines want more valve overlap than FI applications to increase exhaust scavenging and such while FI applications dont want it because this kind of thing happens. So until someone cracks the VVEL control module and allows tuners to change valve timing we will be stuck with this issue, increase the boost to make up for boost "lost" or increase exhaust backpressure. Edit: I should add in that this is what I suspect to be the issue based on my knowledge, I can't say this is for sure whats wrong with it as I don't exactly have the means to back up that statement. Last edited by Neo187H; 09-09-2010 at 03:56 PM.

09-09-2010, 05:17 PM	#1692 (permalink)
Joebarchuck Base Member Join Date: Aug 2010 Location: Los Angeles Posts: 202 Drives: 2010 370Z Roadster Rep Power: 15	Can we have an official Stillen answer on all these problems and differences in between their test cars and the ones from customers. They really need to have an official answer as to avoid any further damage to their Stillen SC brand. Despite all of these issues, I may still go for the Stillen SC as it is most likely the most reliable over time nonetheless they absolutely need to address the low HP gain people on here have been having. You cannot advertise 155HP gain and once install only get 80HP. We absolutely need some official communication from Stillen. __________________ Red 2010 370Z Roadster: Stillen G3, Stillen Exhaust, Up-Rev Tune (312 RWHP), Eibach Pro Springs, 20mm spacers front and back, Rear Camber Kit, Tinted Windows, GT-R Start Button, Interior Mods

09-09-2010, 05:25 PM	#1693 (permalink)
shumby Captin Canuck Join Date: Dec 2008 Location: with your mom Age: 44 Posts: 6,288 Drives: your sister Rep Power: 236	^^^ WTF are you basing more reliable over time on. so far I have the most miles but on any SC set up and it is GTM. No issues and did everything I asked of it. Stillen has a long track record of dissapointing the infiniti/nissan crowd. __________________ 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

09-09-2010, 05:42 PM	#1695 (permalink)
shumby Captin Canuck Join Date: Dec 2008 Location: with your mom Age: 44 Posts: 6,288 Drives: your sister Rep Power: 236	Yes i did ask it that and boom. My sxuper hot wife was in the car with me. lol. My install took a long time. but i had alot of other work done at GTM at the same time with some custom work for my oil and tranny coolers plus the Camp II install. I did lie it did not do everytrhing i asked of it. I asked it to get me more BJ's but that has not happened yet. __________________ 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

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