And besides, a smaller water to air intercooler would have less of a pressure drop accross it meaning you could utilize more boost rather than having it wasted accross a large intercooler.

How easy are those to upgrade Kyle later on if we become boost thirsty and start swapping out pullies :D ?

The internal intercooler is pretty much maxed out with its size and I think you would have a hard time exceeding its capabilities. If you want to run a larger heat exchanger out front that would be a pretty easy modification to make later on down the road.

Thanks Kyle!
No I am mainly conserned about proformance! Im not in it for looks! Im in it for speed! Cant wait to get this sc to the track!
I did not know how it works but now I do
I just thought since turbos benifit from large intercoolers that the sc might as well but now I know! I can't wait for the arrival of this bad boy!

New year update!!!
 

Progress is coming along very well. We received some of the castings back from the casting house this week and next week they will go into the machine shop for finishing. From there we will install them on the test cars and will begin tuning. A little bit of cool information that I have found out today. The casting house who is making our intake manifold and some of the other components also makes aluminum heads for Ford, racing speed boats and numerous other forms of race vehicles. They do some amazing work and they're located in USA!

Also, we have some information on some of the options that we will be offering for the VQ37:

The STILLEN supercharger kit will have 3 stages.

Option 1) Tuner kit...All the hardware and equipment minus the fuel management. This kit should be ready in about two months or so. Look for it around the end of February beginning of March.

Option 2) CARB legal kit. This kit will be 50 state legal, yes it won't have as much power as the other stages but it is street legal!!! More than likely this kit will be running around 6 psi. The release of this kit greatly revolves around the amount of time it takes CARB to grant us a test date and review our results. I can't give a solid ETA on this because it really is up to CARB.

Option 3) Race kit...This will be a pre-tuned race kit that will not come with any warranty and will not be street legal but it will be a bolt in kit for the guys looking for a bit more power but don't want to bother with figuring out their own tuning. This kit will be developed along side the Tuner kit so look for it to be released around the beginning of March.

I'll put my order in RIGHT NOW for stage 3. Car will never be used for the street and never ever on the HWY ;)

Kidding..thanks for the update buddy, very excited to see more updates.

Best of luck!

So the stage 1 will have more power than the stage 2? What HP range will stage 1 be looking at without fuel management? Does stage 2 include fuel management? Is tuning included in 1 & 2 stages? And Im assuming IC for all stages?

6PSI sounds reasonable and safe!

And, if it's not enough, I'm guessing it wouldn't be a big deal to raise it a notch or two, once the kit's installed...I mean, installation is the hard part (assuming retunes are easy, right?)


My level of interest in this drops once 91octane is exceeded. I don't want to have to hunt for the 93octane pumps in my area, and, I'm not about to buy additives...

Don't focus too much on the different stages. I just through those together so they may change down the line. For now, let's call them Tuner kit, CARB kit, and race kit? I will go back and change my post to reflect the different names

The Tuner kit will come with no fuel management at all. That will be up to the tuner and the customer. We will offer different pullies to support different levels of boost but there will not be any tuning included in the kit.

The CARB kit will be a complete kit with locked down fuel management and everything needed to complete the installation.

The Race kit will also be a complete kit with fuel management however it will not carry any warranties and will not be CARB legal.

Yes and no...You are correct, swapping out the pulley is pretty easy as well as getting a tune to compensate for the increase in boost. Those are both pretty easy steps.

However, then the kit will lose its warranty will not be street legal anymore...

Can it be done relatively easily? The answer is yes.

Will it retain legality and warranty? That answer is no.

Understandably! I'm just saying that if someone gets the Stage 2 Kit, then decides that's not enough and wants to toss the warranty, they have the option without scrapping the investment.

That's a good thing... :)

Sounds good, Kyle. Can't wait to see pics of the kit and dyno numbers. When do you expect to release that info?

I dunno i'm pretty confused on this whole thing. since they didn't release the trim they may be using a Vortech VTS unit especially considering the new manifold, water to air intercooler, lack of photos and general reluctance to leak info. If it is it all makes sense because in their shoes considering the amount of negative backlash against the 350z roots kit, i would wait until all the power figures where in before posting up the final decision. my guess is the move to set the release date back into march is just in case the vts doesn't pan out and a new kit designed around the centrifugal has to be made.

the main points for this argument are the new manifold especially considering GTM pulled it off easily with the stock one. As for the hood concerns, the 350z kit was made utilizing the stock lower intake manifold so the height was increased. if they remade that piece to make the unit sit lower it could be possible to make it all fit. besides using a positive displacement blower and making it all work would allow stillen to save face on the shortcomings of the 350z unit.

VTS Twin-Screw Supercharger Systems Featuring Lysholm Technology | Vortech Superchargers

Great points. I was thinking about this when Kyle started releasing info,and asked whether they were using a centrifugal or twin-screw either here or on MyG37. However, I wasn't answered so I just kinda forgot about it. Actually, I wouldn't mind if Stillen went with the twin-screw and GTM went with the centrifugal so that there would be more variety between the two kits. Can't wait to see the finished pics and ESPECIALLY the dyno numbers to see how these two projects compare. Props to both Stillen and GTM.:tup:

1slow370 does make some excellent points. I have only seen air to water intercoolers for positive displacement superchargers. Vortech does have aftercoolers that are air to water, buy they are bulky and won't fit. Redesigning a manifold is definitely not necessary for a centrifugal blower.

Using a positive displacement supercharger on a VQ37VHR is not out of the question:
http://myg37.com/forums/picture-shar...rom-japan.html

there are still hurdles on that one if u read farther into it the only information they have on that blower is that it was a blitz prototype and no one even knows if it runs.

Edit: not to mention it is japan only but it does show the fitment can work, as the vts and other twinscrews on the market are longer but shorter and have axial inlets on them so no need for the funny hood clearance intake neck thing.