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

I've got a stillen supercharger kit on my Z was wondering if anyone has ever modified a car with this kit? I also have a stillen exhaust which I don't necessarily like. Any ideas for mods?

I'm a car noob, but yeah i got the stillen supercharger for my Z as well. Along with the stillen catback exhaust, oil cooler, and headers.

With the stillen tune, my car made like 330whp (stock was at 270whp) which was ****** up since i spent like $10000++ on it, but after a custom tune on a dyno it made 390whp. So yeah, I guess what you need is a good tune.

Also,

my car dude told me that it can make more power if I get the stillen cats as well, along with the SC. Do any of u guys know how much more HP will it make if I get these cats?

Sorry if Im making this thread my own, but i guess i have a similar question with you

I dont remember the members name, but look around for his Stillen Supercharger thread. He purchased his kit from another member that switched to a different company. He made a couple mods to it and was making over 400+ whp. I will look around and if I find it I will link it, but im not going to spend hours finding it for you =)

Found it click here -------> http://www.the370z.com/forced-induct...ercharged.html

only took 16 min! good job

As geohartanto mentioned already a custom tune is paramount in getting the proper power out of this kit. If you want over 400whp Stillen can sell you a 9psi pulley, you can also purchase the 928 motorsports impeller to upgrade the stock vortech impeller which will make more boost throughout the rpm range and increase peak boost by 1psi. Any upgrades you do will require another re-tune regardless.

That would be me I purchased the kit from Weiboy.

For anybody that is trying to get more power out of this kit a custom tune is a must.There are a few ways that you can go to get more power out of the kit.

You can get the 9 psi pulley from stillen this will require you to sign a waver.
Also you can get the 928 motorsports impeller this will increase boost throughout the rpm range.

If you want more power than that you can do what I did and put cog pulleys on the back of the supercharger , and back of the bracket.By having Cog pulleys on the back will allow the boost to come on sooner ,and prevent belt slippage for the supercharger. Fair warning do the cog pulley mod at your own risk I am still doing R &D on it.
Doing the Cog pulley modification will max out the stock maf's at around 7000 rpms. You will need a bigger intake or upgraded maf sensor's.

This kit has a good Vortech unit that is nowhere near is maximum potential. Does it have it's flaws yes it sure does.

Once summer hits get ready for major throttle lag.

Are you talking about me or other people in this thread?

My experience with the stillen kit on my car last summer

I understand piss poor 91 plus a bad tune will do that to you.

Might want to ask RCZ what he did, cause he is making 430-440whp out of the same kit you have.

stillen 9psi pulley and a custom dyno tune

Is this reliable power with no knock? Those are not bad numbers. I would like to see more guys getting there easy.

Theres no knock, its just as reliable as all other FI kits out there, just as GTM is doing now with their larger rotorex blower and 10psi. The stillen kit uses a vortech V3 and its capable of far more power. With a few tweaks it's capable of making the same numbers as the unreleased GTM stage 2 SC, as squeeze has shown.

People aren't making much with the 8psi pulley because the tune stillen provides is extremely conservative to try to meet carb approval and to hold up their warranty they offer ($400 fee gets you 3 year/36,000 miles or up to $8,000).