how to get more power out of a stillen supercharger kit?

geohartanto

Hey Mr.Squeeze you seem to know alot about the supercharger. Im currently at 390whp.
1.) how much more power can we get with a 9 psi pulley?
2.) My auto guy said changing to stillen cats with another tune, we might get 30 or even 40whp?

thanks man!

Mr.Squeeze

What type of dyno did you get the 390WHP on was is a dyno jet?

If I had to take a guess I would say about 30 or so, I am not a 100% sure because I haven't used the pulley my self yet. My numbers are without using that pulley.

I also have never ran cats on any of my supercharger set up's I alway use test pipes.

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Driven Motorsports Single Turbo 7675 T4 1.32 A/R 995WHP 780TQ

ANMVQ

Nice numbers man, I'm getting my Stillen SC installed in the next week and the will be out to Kaizen for a tune.. Mustangs are good dynos IMO. True numbers.

Yes if you run HFC's or TPs you should see another 30 WHP.

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14 Q50 AWD, ARK, ECUTEK (SEB), Takda,

Neo187H

That's not true on our cars, with TPs he will actually prob see a loss of HP due to the valve overlap.

ANMVQ

Who told you that? numerous people and tuners I have talked to said there is 10-20WHP to be added with TP's or HFC's,. Lets not count the numerous dyno sheets I have seen where guys are making 10-20 more WHP and WTRQ more than me and the only thing different they have are TP's or HFC's.

WOW mis-facts are nice. :/

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14 Q50 AWD, ARK, ECUTEK (SEB), Takda,

Lug

You get the bonus from changing HFC's on an NA car but some say you loose it with an FI setup due to blow through due to valve opening overlap. I think there was some supporting dyno's for this theory but can't remember where.

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keep Chubbs in your pocket - Chubbs

Neo187H

In general or specifically on our engine? Check out the numerous GTM stage 1 SC threads, there was actually an entire thread dedicated to trying to get more power out of the SC with exhaust. Due to VVEL the intake and exhaust valve overlap is too aggresive for an FI application and causes us to loose boost through the exhaust. For example I'm running the 928 impellar AND the 9 psi pulley and I'm barely breaking 9 PSI on my Stillen kit with full exhaust