STILLEN 370Z Supercharger System - Announcement!!!

Chris@FsP

That's what I want to see

LateralG'z

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2010 Mag Black, 6MT,

tomnavone

I have a question for josh or kyle or anyone at stillen. My car is sitting at my shop with the supercharger installed but i cant take it home. Why are u changing the pully from the one u sent? Will it be the same boost as the one u used in your "extensive testing"? Will the numbers be the same as u advertised in your press release? Did u rush this kit out with out really doing any "extensive testing" just so u could have a kit like gtm does? So far very disapointed with stillen. Any answers would be greatly appresciated.

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GTM Supercharger/HKS Camp2/Berk cbe/Motordyne art pipes/Hotchkis sways/ Eibach Springs/ Black Volk TE37/Bridgestone S-04
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Nitex

phone call maybe? or vent on the forum because your upset. They are replacing a part they may have found to be restrictive or harmful in some way it sounds.. for that be happy. If its just a pulley... no big deal. You have waited this long, may as well do it right?

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2013 Drivers ED GTI | Stage 2 Unitronic

tomnavone

Just sharing my experience with stillen. Phone call has been place but they dont have any answers. They also dont have a tune for me yet either. Their software is also locked so it cant be tuned by anyone but stillen. I chose this kit over the gtm kit because of the "extensive testing" stillen did.

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GTM Supercharger/HKS Camp2/Berk cbe/Motordyne art pipes/Hotchkis sways/ Eibach Springs/ Black Volk TE37/Bridgestone S-04
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Nitex

I am also looking for an open source tuning application for our cars. I want my friends Audi shop to install the kit, meth, and do our own tuning...

So far stillen has been very good about customer service for me.. and also they have done well to provide fairly affordable parts with good performance. Our cars are so new i think anyone that buys some of the first SC/TT kits will deal with some issues as your experiencing... I thank you sir for helping pave the way, and hope your build finishes up soon!

Also it could be that they are still testing, excessively or not.. which should be why your getting updated parts!

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2013 Drivers ED GTI | Stage 2 Unitronic

Nitex

If they find something wrong with there kit then, them addressing it instead of ignoring it would be the opposite of shady i would think..

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2013 Drivers ED GTI | Stage 2 Unitronic

LiquidZ

Isn't boost affected by elevation? If they are shipping kits across the country, of course boost will vary.

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Josh@STILLEN

Tom, good speaking with you this afternoon. I'm sorry that the information relayed through our salesperson, to your shop, and to you was incorrect, and caused some confusion.

The shop has the new pulley, they will be installing it and do the ECU reflash on Monday, and you'll be good to go.

RCZ

Funny, my kit works perfectly. I think the pulley is just a precautionary step to keep people safe. There will always be quirks here and there as you start installing the kit on more and more cars because there are minor differences in cars and setups they are running. I find it absolutely ridiculous that someone would get mad at them for sending you an upgraded piece, free of charge, for your car to be as safe as possible. Seriously, you have to be kidding to get mad over this. They just can't win with some customers...do something about it, bad, dont do something about it, bad.

DannyGT

Wait what?

So because your kit is 'perfect'...How does a new pulley and a more conservative tune help with the purchase of a kit that was supposed to make XXX numbers? I mean the whole stupid battle back and forth between them and GTM was fun and all, but I think what people want to know now is, what are the new numbers and how do they compare...

I know this is the INTERWEBZ and all, but is it true 2 kits have failed and since then a letter has been sent out?

Dear STILLEN Supercharger Customer:

Over the past month we have shipped out many superchargers and have received great feedback from our customers on everything from the kit itself, the ease of installation, the quality of the components and the driving experience. However, we have also found there are variations in boost with some cars experiencing pressures higher than we are comfortable with.

As the reliability and longevity of our customers’ vehicles are our utmost concern, we are contacting all those that have been shipped the supercharger kit. We will be supplying a conservative interim tune to replace the existing tune. We are asking that the vehicles not be driven until the new tune is installed. We have released the interim tunes and ask that you install the new tune in your vehicle immediately.

Within the next 7 to 10 days we will be releasing a revised tune if necessary depending on your vehicles configuration to ensure that all vehicles will be running at top performance within our design specifications.

Please call our office Friday morning any time after 8am (PST) at 1-866-250-5542 with any questions on the process of updating the tune in your vehicle, which should be done before the vehicle is driven. Instructions for updating can also be downloaded here: http://www.stillen.com/misc/OEM_Flash_Update.pdf

I'm glad they are reaching out and doing the right thing, but I cant stop thinking about the **** that was given to some GTM fan's, and then this happens...

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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

The kit makes the numbers at 7.9psi. It seems the problem was overboosting a little so they are doing something to adjust it back to that psi...why in the world would the numbers change? Think about it for one second... the numbers will be the same. My numbers are at 8psi and I check my peak boost every time I take it WOT to redline. Never seen it over 8.

You said it yourself, its the internet. I wouldn't believe everything I read. I hope you're not talking about Whiddles and weiboy.

shumby

dramer has driven it already. and he will be getting his offical dyno on Saturday.

I heard stillen boost has been climbing to 28PSI and blowing engines right out of the cars hood leaving it on the road. Just saying thats what i heard. lol

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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

DannyGT

Dude, you got your tune done by a well known, and aggressive tuner /grats.

I asked if the rumors where true, I'm not spreading them...that is my point. I will have my kit installed, with meth, and custom tuned...Be sure I will report everything, good or bad.

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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)

Phimosis

The resized pulley spins the s/c slower and makes less boost, which makes less horsepower. That setup up is safer, but it is not what they advertised to the public when they started accepting deposits on the kit.

The cash flow generated by the number of preordered kits was based on numbers that looked very impressive. If they later come back and say, "well the setup we were intially selling wasn't safe, so we are going to give you a kit that makes 50% less power for the same price," are you going to be satisfied?

I think most people would not.

I posed this question/statement to Stillen's sales team: A 108 whp increase is roughly 50% lower than what I was expecting based on Stillen's press release of +155 whp. Even with the pulley revision, I was expecting 140ish. But 108?

The response received from Stillen: "Please keep in mind a couple of key points: Your baseline dyno was performed on your car as it was received at our facility - with STILLEN Gen. 3 intakes. headers, high flows and a CBE on the car. Our press release compares a completely stock vehicle with a supercharged vehicle with a CBE. A 370Z with our Gen 3 intakes, headers, high flows and CBE will usually achieve an increase of 50 HP over baseline. So if you take 50 HP from your baseline of 312 your real baseline would be about 262 HP. Compare that to the 422 and you have an increase of 160 HP. Obviously some of that increase can be from the headers and high flow cats but those two parts would typically provide 20 HP on a supercharged vehicle (the supercharger replaces the Gen 3 intakes so it isn’t accurate to account for them on the baseline). Therefore the supercharger and CBE would be providing you with about a 140HP increase not 108 as you state."

I dunno. The dyno graph is post #976 on this thread (and reposted below). It says that the power made after modification with supercharger is 422.4 whp (at 68 degrees F ambient) and before modification it was making 315.5 whp (at 75 degreesF). Quick math with a calculator says that the increase in whp is 106.9 and the increase in torque is 51.4 lb/ft

The graph with the new pully is also quite different than what RCZ has resulted from post #930 in this thread. In his dyno graph, the car reaches 300 lb/ft torque at 3,800 rpm (at 99 degrees F). The graph in my post (#976) with the revised pulley shows 300 lb/ft of torque being reached at a higher 6,200 rpm.

I suspect the difference is because centrifugal superchargers do not make make much boost at low rpm. Think of a hair dryer with it's motor spinning at 3,600 rpm (60hz ac x 60 seconds = 3,600 rpm). It makes very little air pressure. But, spin it at 60,000 rpm and it would make real boost. So I am thinking the revised pulley is killing the midrange as their press release advertises 343 lb/ft of torque @ 5,800 rpm compared to the 306 lb/ft @ 7,200 rpm seen in post #976 with the new, revised pulley, as well as the car making no increase in power over baseline at 3,000 rpm or lower.

I have posed that question to Stillen and asked if something can be done to rectify the situation. I am awaiting response.