Here, in a land of Oz, a supercharger is otherwise known as a 'blower' and it is a compressor that compresses air and fuel and pumps it into the ingine (hance making it ack like a larger displacement engine). Also, it runs of a belt from the engine so there is no lag and the power increase is linear as the supercharger always spins at the same speed (ie. aways the same compression). Supercharger is what Mercedes put into their cars to beef up the power.

The reason I ask is that I see all these posts/graphs about the Comptech supercharger and I see that it does not increase the power bellow 6k revs at all and above 6k it makes the power curve even peakier. The power graphs look more like a Turbo to me, but even that would spool up before 6k revs. So is this a supercharger like what I described above? If so, why does it not beef up the power curve at the bottom (or lineary)? Last of all, I take it there's no lag with the Comptech supercharger as it runs of a belt, right?

 

There are two types of supercharger: a roots type like those used on the MB, and the type used by Comptech... which I believe is a centrifugal type.

The Vortech blower is just like a turbo, just driven by a belt... call it, turbo on a stick. The roots type also driven by a belt but is of a different design. Roots type blower make power on the low end, where the Vortech makes it up high.

-Shing

[Edited by shingles on 05-04-2001 at 07:39 AM]

 

Certainly the centrifical SC does not have the same affect on the curve as the positive displacement SC but it does start to increase power before 6K. I thought the last chart I looked at the increase started in the 3.5K range increasing the margin as the revs rose. Some of the charts make it easy to confuse the crossing of the torque and HP curves.. take a look again.

 

I think the comptech supercharger doesn't benifit the power below 6K because the engine lacks the torque to generate enough boost.

 

Horsepower and torque begin to build at about 3500 to 4000 rpm but doesn't become dramatic until 6000 (VTEC).

 

It was stated by Comptech that the system was designed that way because of ECU incompatibility with the low revs boost and that also the boost down low didnt pay off. (didnt get any real power)

Im waiting on the 'other' supercharger thats in developement right now, sounds to be very nice . . .

 

Does Jackson Racing have a supercharger or one in development for the S2000?

 

Development is not currently scheduled despite rumors.

 

not jackson but it is rumored to be an "eaton" style charger and rated 375 FW and 300- 310 RWHP

maybe in 2 months? Thats all Im saying

 

[QUOTE]Originally posted by cmnsnse
[B]not jackson but it is rumored to be an "eaton" style charger and rated 375 FW