Stillen Supercharger estimates???

Buddy Revell

For me personally, I'm not really concerned with peak HP that much. I'm more interested in a solid increase in usable low-end and mid-range torque and HP that I'll see all the time as opposed to peak numbers high in the RPM range that I'll rarely get to in a daily driven street car.

1slow370

6-8 psi through a good effiecent, intercooled twin screw will be more than enough power and torque for most and don't even think of hitting a roadcoarse with that level of power with out a decent brake upgrade. and on the bright side if properly done the car will drive as if the power is all motor. some people like the feeling of boost coming on and building up that turbos and centrifugals give you but personally when i put my foot to the floor i want it to be there before the pedal hits the floor. besides theres nothing like a not having to drop the clutch to smoke em.

Edit: also when u pop the hood to impress the buds u can point and go look at that instead of having to carry around a huge freakin mirror or an inspection camera to point out the paint peeling off your framerails from the snails.

Kyle@STILLEN

this is the key in my opinion!!!

We manufacture a lot of parts for the ford gt supercars and they regularly twin turbo those cars and reach horsepower levels in excess of 1,000 horsepower. One guy just got the twin turbo kit installed on his get and he put it best...1000 horsepower is kinda like having an 18 inch member. Sure it's cool to brag about but you can't really use all of it!

One thing to consider is over all performance and what you plan on doing with the car. I plan on writing a detailed explanation of what I mean by that tomorrow.

Buddy Revell

Two questions:
1. Can you answer whether you're going with a centrifugal or twin-screw?
2. Does mid-range torque = girth?

1slow370

I knew a guy that just did a whipple blower upgrade on his GT40 and he was pushing 850-900 so what the hell is the point?

Kyle@STILLEN

Ford GT supercars are a little different than your standard street car. They are geared from the factory to reach speeds in excess of 250 MPH. A lot of owner's of the Ford GT supercars take their vehicle's to standing mile events or events like the Silver State Classic and Bonneville where huge horsepower is necessary. However, the guys who actively track their cars on circuits, generally stick with the factory or Whipple supercharger due to the fantastic amount of torque those cars produce.

Take for example our Ford GT. It only makes about 650 horsepower but we regularly race it in targa rally races in new Zealand. However, we altered the gear ratio so that we could actually use 1st, 2nd, 3rd, and 4th on the rallies. Before changing the gear ratio, we were stuck with just 2nd and 3rd, mainly 2nd though.

So to answer your question...What's the point?

It all depends on what YOU want. Again, I will write a more comprehensive explanation of what I mean by that tomorrow.

Kyle@STILLEN

We will be using the centrifugal Vortech supercharger. We have been a Vortech distributor for many years now and we have also engineered out own kits in the past with Vortech units on vehicle's like the CLK430 and the Nissan Maxima. Both of which offered amazing low end torque due to the custom trims and modifications we made during testing and development.

john370z

Kyle,

Can you please tell us the estimated hp and tq gains at the low range...( under 4000 rpm)?

Many vortech systems for the 350z had VERY little gains in that range. Usually under 20 hp/tq were gained.

Thanks,
John

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Kyle@STILLEN

Right now that question is not possible to answer but I want to acknowledge it so you don't think I'm ignoring you or skipping over it.

One of the great things about Vortech superchargers is that we can adjust different trims on the wheels which will greatly alter horsepower potential and low end torque. Until we come up with our final trim it is impossible for us to definitively answer what we expect. We really just need to do the testing.

What I can tell you, is that we are all racers at STILLEN so we all want immediate throttle response. I know for a fact that although peak horsepower numbers are always good, improving acceleration is always a big goal of ours.

1slow370

thanx for calling that one out for sure kyle now that the big question is out of the way and my fat f/i check came in time to go to my guy and see if i can get my hands on an axial kb2.6 or 2.8h unit and begin the parts acrual process. Good luck with the centrifugal kit and i'll be interested to watch the GTM vs. Stillen shootout that is sure to ensue.

NewYorkJon34

Finally some anwsers, I'm glad to hear what kind of S/C stillen is making & if 6psi is suppost to make around 450-475hp it will be perfect for my needs. I just hope this kit is going to be reliable, I don't want to worry about something breaking one day while I'm driving.

1slow370

usually the worst thing that happens is a broken belt so the style of belt and ease of changing that are usually what you worry about. it's self oiling so besides keeping coolant in the intercooler there isn't much to worry about since it ships tuned.

Buddy Revell

Thanks for the clarifications, Kyle. I can't speak for anyone else, but I'm very pleased that Stillen emphasizes solid low-end and midrange gains over peak. Usually, centrifugal systems show great peak hp gains but are mediocre down low, so I'm excited to see how you solve that issue.

m4a1mustang

Looking forward to this. 450 whp with some useable low end grunt will be fantastic for this car.

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Buddy Revell

Considering a full twin-turbo system on our VQ is putting out 442 whp at 6 psi, I doubt the peak numbers for these supercharger systems will be that high unless they are running considerably higher boost.

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