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If I were you... i'd be doing the following (keeping N/A):
1. LSD
2. RBC Inlet Manifold
3. K-Pro
4. More suspension goodies
Take a look at timofytit's build and results etc (N/A) before you think more about forced induction. Just think hard about your goals, what suits your driving usage/style and do your research!
http://forums.clubrsx.com - is a good place to start!
Super Charger would cost a fraction of the price and most likely net the same power gains if not more.
A NA powered car would be nice, especially if I could keep up with a mates Mazda 6 MPS and his turbo.... I've decided I'm going to start off with a hondata ecu and go from there, so first step I've gotta find a 02-04 DC5R ECU.
Vision R EK is putting out quite a bit of power.. with a NA engine. Something that has given me a bit of inspiration.
Cheers!
I drove in a bris guys car who had a JRSC kit on his DC5. Running 9psi he had around 220hp @ treads.. was a very linear delivery and anyone who bags superchargers for race application simply don't know the full picture. In front wheel drive where traction on front wheels is a delicate balance, you don't want any sudden changes in power to them (i.e. some of the reason why FWD racers resist clutch type LSD). My personal opinion is that besides the fact that Turbo's are more efficient for 'top end' (general comment without starting a whole new thread) there is a real advantage in the way the power is delivered with a roots style blower and 'generally' for a low pressure system the area under the curve (which is what you really want for track racing) isn't too dissimilar. I think it comes down to driving preference, but I know I am happy to lose a little bit of potential top end (efficiency drops off with a roots style blower) for instant throttle response, linear delivery etc.
His car was quite quick from memory, putting the foot down in second was spinning the tyres but I didn't like the handling of the car (tail happy) so didn't push it .. He did go through charger belts though which can be a pain in the ass.
Look on the american honda-tech site if you want second hand charger -- probably not so expensive now and shipping wouldn't be THAT much..
IMHO -- the whistle of a roots blower makes it all worthwhile :) haha -- sounds fantastic!