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Has anybody ever calculated how much power we would actually be making with parasistic drag? (Is that what it is called) Tubo guys are putting down obscene amounts of power with 7 and 8psi (Turbo Mafia) but we 8psi SC guys are still like 30hp behind. I think I read somewhere that our SC are sapping the equivalent of 3 A/C compressors http://www.hostboard.com/ubb/eek.gif How true this is I don't know but just wondering.
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98 GS-scR w/ 8psi JRSC, Walbro HO fuel pump, AEM cai, Airmass header, Thermal Exhaust, Skunk Works cam gears, J&S safeguard, Ground Controls and KYB AGX's, and of course to slow down, KVR X-drill F&R rotors and Carbon Kevlar pads and V1 to signal the slowing down
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I hear that we're losing 15 WHP at the top because of the belt driven part and the fact that we don't have an intercooler (which makes HP) also makes them generate more power. http://www.hostboard.com/ubb/smile.gif
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Silvino Orozco
'97 Integra GS-R w/JRSC (8 PSI), Walboro 255lph High pressure fuel pump , Filter on a stick air intake, Powerstop rotors/Axxis Metal Master brake pads, A'PEXi Dunk Exhaust, J&S Safeguard unit,NeuSpeed rear Swaybar, Eibach Springs, Clutch Masters Stage III clutch (installing soon), AEM cam gears (installing soon), Energy Suspension motor mounts (installing soon)
[This message has been edited by Silvino (edited February 14, 2000).]
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Couldnt we avoid this problem, or negate it if we used a smaller diameter, lighter weight crank pully? And also, a smaller/lighter AC and Power steering pulley? Of course they crank pulley would have to be custom made so that we know exactly what boost levels we are going to run
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The drag isn't the pulley it's the supercharger.
I would trade 15 whp for the instant street drivable power though any day.
Food for though.
If we can properly tune the tip in, such that the car DOESN'T lean out, imagine the power response at tip it that is possible! Now that's a supercharger. Cause remember power is only as good a the fuel that burns.
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http://www.netbsi-kc.com/integra/
http://www.netbsi-kc.com/aa/
http://www.groupbuycenter.com/
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Unorthodox is working on some pulley sets specifically designed for the JR Supercharger !!! They should be ready in May or June.
As for a smaller crank pulley... NO -- DO NOT DO THIS !!! It will slow down the JR blower, so you will lose boost !!!
Lundgren is right... the car's throttle response is sharper with a lightweight crank pulley... I had one on my car when it was N/A, and I was running 13.90's then !!!
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'93 Civic Si H/B with B18C1, JRSC @ 8psi
Best 1320: 12.68 at 110 mph
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Doesn't Unorthodox Racing make an underdrive crank pulley for supercharged cars?
I used to have a UO pulley until the JRSC, and I remember reading on their website that they were planning on making aluminum crank pulleys that drove the alternator at the stock rate, but underdrove the PS and AC. (They also make a pulley that has NO drive for PS and AC, only the Alt.)
Greg Holden
96 GSR
