For you guys that went with the Comptech supercharger on your S2000's. How was the powerband and power gains? I'm looking at either the Comptech charger or another Full-Race turbo setup with AEM EMS. I dont really know **** about superchargers this is why I'm asking. The boost is only controlable on a supercharger by pulley size and not by a boost controller right?

 

the power curve is similar to stock... you wont' hit full boost till redline....so in other words it's easy to control...

 

to change boost you will have to change pulley sizes.

 

SC= bolt on and roll 300hp easy and veryyyy fun

turbo= Power hungry but it can go both ways

 

I have a question about the SC im not to familiar with it, lets say you have a pulley for 9lbs what if u dont want to ride around in 9lbs are you stuck with it or what?? the only way to boost less is to get a smaller pulley??? do boost controllers work with SC???

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Yobz &raquo;</TD></TR><TR><TD CLASS="quote"> to change boost you will have to change pulley sizes.</TD></TR></TABLE>

 

The only thing I would add to that is that your not at 9 psi until redline so its not like your at full boost all the time.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by S2K K1DD &raquo;</TD></TR><TR><TD CLASS="quote">I have a question about the SC im not to familiar with it, lets say you have a pulley for 9lbs what if u dont want to ride around in 9lbs are you stuck with it or what?? the only way to boost less is to get a smaller pulley??? do boost controllers work with SC???</TD></TR></TABLE>

only way to change your POTENTIAL boost on a supercharger is to change the pulley....

smaller pulley = more boost
bigger pulley = less boost

and i already stated on my first post.. that you don't hit full boost till redline... and it's not always constant... sometimes you'll peak at 9psi.. sometimes it'll be at like 8.5... sometimes even lower...

 

Its not really sometimes, it depends on which gear your in. For example with the 7 psi pulley I get 5 psi in 1st and 2nd and 7psi in 3rd and on. The engine just has to be in the rpm range for a longer period of time to reach full boost.

 

how well does the f20c holdup as a daily driver with the comptech supercharger? And for the guys running the Comptech kit, what are you using to tune it. Im very interestted in getting this kit, but i dont feel like doing an engine rebuild 30,000 miles from now

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Chubzilla &raquo;</TD></TR><TR><TD CLASS="quote">how well does the f20c holdup as a daily driver with the comptech supercharger? And for the guys running the Comptech kit, what are you using to tune it. Im very interestted in getting this kit, but i dont feel like doing an engine rebuild 30,000 miles from now</TD></TR></TABLE>

it's quite reliable if tuned properly....

i suggest aem ems for tuning... however people have also just used the fmu that comes with the kit and have been fine...

 

Ive had a chance to ride in a Civic SI with a Vortec S/C and i assume the experience would be the same with an S2000. I believe the VTEC engines and centrifugal superchargers are an extremely poor mix. Sure you may have 300hp but thats exactly at redline so you barely see any of it and before then is an exaggerated VTEC power curve.

 

SC is nice and reliable.

I drove Revhi's car. It pulled hard

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by zclee.com &raquo;</TD></TR><TR><TD CLASS="quote"> I believe the VTEC engines and centrifugal superchargers are an extremely poor mix. Sure you may have 300hp but thats exactly at redline so you barely see any of it and before then is an exaggerated VTEC power curve.</TD></TR></TABLE>

I don't get it...maybe downshift? Best acceleration is going to be at some high RPM, by design, b/c that's where the peak power output is. With the Comptech S/C, that's around 6000rpm. So downshift!

 

do i really need to explain

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by zclee.com &raquo;</TD></TR><TR><TD CLASS="quote">do i really need to explain </TD></TR></TABLE>

If you don't mind. I wasn't trying to be offensive. Just didn't understand your POV. I'm supposing that you're more into positive displacement superchargers rather than centrifugal?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by zclee.com &raquo;</TD></TR><TR><TD CLASS="quote">do i really need to explain </TD></TR></TABLE>

word id like your thoughts as well. no disrespect.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Ponyboy &raquo;</TD></TR><TR><TD CLASS="quote">

If you don't mind. I wasn't trying to be offensive. Just didn't understand your POV. I'm supposing that you're more into positive displacement superchargers rather than centrifugal?</TD></TR></TABLE>

i think what he is trying to say is that the comptech sc makes the most power at 9k rpm's

its not constant power from vtec like everyone thinks...most people assume you are going to get 300hp right away when the cams switch lobes and it is not true.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Ponyboy &raquo;</TD></TR><TR><TD CLASS="quote">If you don't mind. I wasn't trying to be offensive. Just didn't understand your POV. I'm supposing that you're more into positive displacement superchargers rather than centrifugal?</TD></TR></TABLE>
Sorry i took it wrong. Im not into any type of supercharging. There is just a better way of forced induction.

Lots of people complain about turbo lag and therefore mistakenly look into superchargers. Centrifugal superchargers by nature have a pretty significant lag off idle but builds horsepower at a very steep rate. This may compliment a V-8 which naturally has gobs of torque down low but lacks top end, but IMO turbocharging is still a much better solution.

A S2000 has a very steep powerband and its peak hp is near redline. Centrifugal s/c's have the same powerband. Now on paper you may see an impressive number but during real world driving you will barely see that number. 300HP is exactly at redline and before then is only a fraction of that 300 hp due to the steep powerband.

 

^^^ i couldn't agree more! i think turbo is the way to go.

 

I agree also, S/C isnt the best way to go for maximun HP. Its ideal for me because the powers there when I need it, yet its not boosting most the time during normal everyday driving. Saves a little wear and tear on the motor.