Just to clarify...It would actually be ALOT easier if we could use our standard, Eaton supercharger on the 3.7 dual throttle body engine's. We would basically just replace the manifold like we did on the 3.5 liter's and design a hammer head style intake tract coming off the throttle bodies. It would look awesome and work really well. However, the current supercharger that we use on the 350Z liter, 62 CFM displacement would be undersized for the 3.7 liter. We would really need to jump to the larger 90 CFM blower which unfortunately creates the need for a new hood.

Development on our forced induction kit is coming along nicely.

Just speculating but it sounds to me like the roots style is out for Stillen on the 3.7? I've also read that it's near impossible to get carb exemption for a non-factory turbo (which means Stillen probably won't be attempting that either). So this leaves only belt driven centrifigul blowers, vortec etc. Can we get a teaser? Maybe a brand name of blower? Is it rotrex? I like rotrex.

I never said that Eaton was out of the question...Just trying to do my job and make my posts regarding this subject as vague as possible hahaha.

You are correct that it is pretty much impossible to get an aftermarket turbo kit CARB legal though.

Seriously though, right now we're just not ready to let too much out of the bag. We're not far from being ready to really get you guys hot and bothered. I really appreciate all of your patience on this. We're holding our cards pretty close to the chest on this project!

Well just hearing that you guys are working on something in the supercharger department and posting in this thread is already enough to get me excited. I won't be supercharging my 370Z till next year anyway, which will hopefully be enough time to develop a great system. Looking forward to see what you guys come up with!

Do you think you can come out with an option of a bigger supercharger. The 350z supercharger kit was a big letdown. Maybe something rated for 500+ hp this time.

We don't drive a V8. A supercharger that nearly doubles the stock hp output will be overkill and won't be as reliable. I'd be very happy with a 400 whp supercharger kit.

For starters- I am at home right now and read this thread and can't remember what my password is so I had to create a new screen name hahaha...sorry...

Welderz-

The supercharger for the VQ35 liter engines that STILLEN developed achieved every one of our goals. It was not intended to be the highest horsepower producing forced induction kit because at the end of the day, that only matters at the drag strip or the dyno.

The greatest aspect of an Eaton, positive-displacement supercharger is its daily driver and race track prowess. Because the Eaton blower produces instant boost at low RPM levels there is no lag and therefore it offers amazing torque at low RPM's...Where you drive daily and where you want power when accelerating out of corners. Also, the linear powerband of an engine with an Eaton supercharger speaks volumes of its performance.

One thing to consider with the 3.5 liter is that the blower we selected was chosen for two reasons. 1) Its size. The smaller size allowed us to make a slimmer hood...The next size up supercharger, MP90 is much taller and therefore requires a significantly larger hood bulge. Something that we feel the majority of people would not have wanted. We understand that the hood modification was a little bit of a turn-off on our kit but was worth the performance of the Eaton blower. However, the larger hood bump required to clear the MP90 is pretty massive. For an example, here is the hood that we made to clear the MP90.

http://www.stillen.com/project_vehic...50Z_1024_1.jpg

Some people love it...Some people hate it...personally I think it looks GREAT but, I'm pretty unusual most of the time haha.

Additionally, the MP90 was really, too much blower for the 3.5 liter displacement engine. In order to take full advantage of a 90 CFM supercharger you really need to do a stroker kit and make your engine at least a 3.9 liter. That way you have an engine that can actually handle all the extra air coming in.

Yep. Most of the 350Z supercharger solutions came in around 80 to 100 hp gain. Any more power really needed a built block to be reasonably safe. Sure, you could get plenty more out of the turbo systems, but that really required much more extensive builds though the rest of the systems to handle it reliably.

Kyle,

Just to be clear....does Stillen have something in the works for the 370Z in terms of supercharging?

^ Yes they do. He has stated this more than a few times on different threads at different times.

I will be extremely happy with 375whp, a flat curve for the track and a reliable tune. If you can hit those goals, you have at least one customer for sure.

Oh yea...We're in development with our forced induction kit and it's coming along very nicely. Almost all of the hard parts are mounted.

I have no idea on pricing or an ETA though.

I didn't mean to offend your products. What I meant was the stillen supercharger for the 350 topped out around 400 rwhp. I understand your targeting the general market of people who want a reliable daily driver forced induction kit. It would be nice to have the base kit for the general market and an upgraded option of a higher capacity supercharger. Something for built motor high horsepower setups. You can only change the pulleys so much before the supercharger is out of efficiency.

Thanks. That's excellent. If I decide on a 370Z once the vert shows up than I'll more than likely go this route. I don't want to go turbo this time for many reasons.....

You are 100% correct and your remarks were not taken as offensive. I just forgot to quote your original post so I just called out your name...Not trying to call you out directly or anything!

You are correct that on a stock block our 62 CFM supercharger can produce about 8 pounds of boost and then it basically runs out of steam. However, that's about all that a stock block can handle. Anything more than that and you start walking the fine line of reliability.

With that being said. The new supercharger that we are working on will be capable of producing PLENTY of horsepower...I don't want to say exactly how much yet but I don't think anyone will be left wanting more with the possible options that we will have.

Greetings.

Make this happen in a stage 1/2 scenario for a daily driver, with uber reliability, with exhaust making anywhere in the 375-400whp range, and I will love you long time :)

And I want it tommorrow :) Is that too much to ask?:stirthepot: