STILLEN 370Z Supercharger System - Announcement!!!

Zsteve

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

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2010 LS3 C6 Silver coupe corvette

weiboy718

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

Chris_1

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

^^^ 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.

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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

Zsteve

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.

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2010 LS3 C6 Silver coupe corvette

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?

mattjk

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?

christian370z

^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.

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-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

LiquidZ

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.

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OKC370Z

Maybe so, but then why is LateralG'z car producing almost the exact numbers on the same dyno as my car when I have Stillen's tune and his was custom tuned? Also, isn't GTM looking for CARB certification?

It may actually be a culimination of the two, which I believe is the case. As I said earlier I think it also comes down to "the dyno" used, it's setup, the car's setup, how it is strapped to the dyno, etc. Everyone's numbers seem to be all over the place. And since most tunes were accomplished using Uprev which if I understand correctly does not allow you to change very many parameters, compared to say SCT for Ford, then the numbers should be close. I've seen this exact thing on Mustang forums when I supercharged my '01, there were people with Vortech's kit that were getting very different numbers.

Might I also point out that most of the results I have seen on this forum have come from Stillen's kit. How many people on here have the GTM kit to compare their results to Shumby? I am curious to know how consistant the numbers will be with the GTM kit as people from all over the place are using different dyno's and GTM's canned tune vs. custom.

It's going to be interesting to see how this all pans out over time. Myself, I'm going to keep tracking and comparing dyno graphs as people post them and look for the consistencies or inconsistencies of canned and custom tunes.

biggersNISMO

UpRev allows you to do almost everything.

Up to 5 Maps on cruise control equipped vehiclesIdle RPMSpeed LimiterElectronic Throttle Control to achieve Wide Open Throttle at all speeds.Rev LimiterDTC disableAFR TargetsFuel CompensationIgnition Timing AdvanceCam Phasing for equipped vehicles.MAF transfer functionCranking Enrichment and Ignition AdvanceInjector LatencyK Fuel MultiplierIntake TempCalculated Load vs. RPMMinimum Effective Injector Pulse Width

UpRev is NOT a limiting factor... You can do everything with it on the VQ platform.

My 2 cents bro.



History is repeating itself with Stillen again.
Everyone ditched them in the 350z community for tuning reasons as well.
Look at all of the my 350 z forum stories on them.

I've benefited from Stillens Headers, Intakes, and HFC's.... But when it comes down to their FI options, the research shows to stay away.

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an awkward morning beats a boring night CONOC.NET

Lug

Uprev is trying to provide a tune that can't be changed in certain areas as a requirement for CARB cert. Or have I read this wrong?

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keep Chubbs in your pocket - Chubbs

RCZ

I don't mean to be a ****, but what I meant is that I in no way feel bad for someone who comes in here with an attitude towards people who are trying to make things right. If someone makes a dumb joke at me like "what math are you using, stillen math?" implying that I'm a dumbass when I'm only trying to help, then you know what, f them. You knows know I don't sit quietly.

Also, Chris from wheels direct will attest to how my car is performing. So Shumby, nice try. Oh there's also that little thing called a dyno sheet with dyno videos. I'm not sure what else you want.

DannyGT

What this boils down to is there are usually 1 or 2 cars that hit the desired numbers from companies like Stillen when they do this whole dyno queen advertisement. In GTM’s case they showed lots of dyno plots ranging from 420-460whp. Showing difference setups/tunes…

I also believe there is more to RCZ's car than people know...Whether its fuel, dyno adjustments, just a ridiculously aggressive tune (which is OK as long as you have the supporting mods)...but when you officially/unofficially become the Stillen spokesperson I'm sure there is a certain interest in making sure that you attain these numbers.

Additionally, I still think its ****** up that you need all these supporting mods, along with other members to either 'just come close' or in your case exceed their numbers...when they claimed they did them with what? CBE?

Give me a break...It’s easy to say they are trying to help him out AFTER they took his 6k but its another to have 6k no longer in wallet and have to deal with multiple tunes and drivability issues and still not make the power they advertised...

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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)

RCZ

I really do care what you think. tell me more.

I defend their products because its the products I have on MY car. When you say they are crap, you're telling me what I have on my car is crap and so I feel like I have to say something about it.

You are right, my car isn't exactly the same as the rest of the ones being tested here. I can tell you exactly what went into my tune and it might shed a little more light. This is the SECOND time I will do this too, I did a few posts back already.

- 93oct: I can be a little more aggressive on timing than Stillen can on 91oct gas.
- Headers + HFC: Stillen had to use stock pieces there, their tune is for stock parts to meet CARB emissions, not for high numbers.
- Light flywheel + light pulley: Between these two, they release some HP.
- Custom tuning: as you all know, my car is custom tuned by a good tuner. That means that the tune will work great on my car, but might not work as great on the next persons.
- Racing oil cooler - will keep temps down