Confused about SC
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wow, this is very interesting. didn't know there are root type sc kits made for the s2k. the dyno also looks like something i'm looking for. looks like your setup holds ~90% max torque for around 5000 rpm, which is very impressive, and 300 whp is definitely plenty for me.
can you comment on the reliablity of your setup? what about maintainence? Thanks!
can you comment on the reliablity of your setup? what about maintainence? Thanks!
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From: Mesa
Originally Posted by S2-3456789-K,Aug 15 2007, 10:46 AM
wow, this is very interesting. didn't know there are root type sc kits made for the s2k. the dyno also looks like something i'm looking for. looks like your setup holds ~90% max torque for around 5000 rpm, which is very impressive, and 300 whp is definitely plenty for me.
can you comment on the reliablity of your setup? what about maintainence? Thanks!
can you comment on the reliablity of your setup? what about maintainence? Thanks!
I actually drove the car from Phoenix to South Carolina (for the WTD meet) about 2 weeks after the install - 5200 miles in 7 days.
The car will be at the 8 Sept. Homecoming Meet in SoCal if you were going to be there and wanted to check it out.
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Originally Posted by WLAURENT,Aug 15 2007, 10:24 AM
Using some type of blow-off or pressure relief valve may work - but it would be very difficult to keep repeatable.
i guess if this is accomplished with a BOV, it would be annoying to have that "pshhhhht" sound from say 7k-9k rpm, but a quiet sprung gate design seems reasonable. but then you wouldn't be able to have a BOV sound when you want it. doh.
btw, your setup does sound very reliable, and i love the torque curve!
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From: Lexington, Kentucky
Originally Posted by S2-3456789-K,Aug 9 2007, 05:45 PM
1) i've seen that in a lot of threads, people upgrade to a smaller pulley for more boost. this makes sense because you increase your crank/pulley ratio to allow for high max pulley speed. however, wouldn't it bog you in the low RPM range? i guess it's like starting in 3rd gear instead of 1st? to me it seems that a smaller pulley would hurt low (and perhaps mid) range throttle response, as more engine torque is required to accelerate the smaller pulley. i guess my real question is...is there an "optimum" pulley size for the street, where mid-range and trottle response is more important (to me at least) than max boost?
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Originally Posted by BondoBuilder,Aug 15 2007, 05:32 PM
The forced induction does not begin until VTEC, or just prior to it (centrifugal SC). It's like VTEC on steroids!!
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Originally Posted by WLAURENT,Aug 15 2007, 11:44 AM
I have over 15k miles on it so far and it is tuned using an emanage ultimate - Drivability is excellent, with OEM like throttle response, etc.. Feels like you are driving a V6 or V8 S2000.
I actually drove the car from Phoenix to South Carolina (for the WTD meet) about 2 weeks after the install - 5200 miles in 7 days.
The car will be at the 8 Sept. Homecoming Meet in SoCal if you were going to be there and wanted to check it out.
I actually drove the car from Phoenix to South Carolina (for the WTD meet) about 2 weeks after the install - 5200 miles in 7 days.
The car will be at the 8 Sept. Homecoming Meet in SoCal if you were going to be there and wanted to check it out.
That is a NICE torque curve. If I had more city driving and hadn't gone CTSC, roots would be a nice solution. Anyone else driving a roots blower?
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quick question: i know in turbo cars if you're easy on gas, you can drive around and not build boost (until you're really high up in RPM), but is that possible with superchargers?? it's belt driven, so does RPM dictate boost regardless of trottle position? thanks!
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From: No va
a comptech is centrifugal its rpm dependant I'm only doing 5 psi at 8k. If I pushed 10 psi I'd get boost sooner in the rpm band because of the smaller diameter pulley it would spin the charger faster and make boost sooner. Driving around in my sc'er I don't get boost all the time only when I'm above 4-5k WOT even then its only 1 psi. My bov leaks all the excess air when my throttle plate is closed. Its like driving a stock s2000 around the city then hit vtec and that's when the sc'er comes into play.