I own a 2008 CR, KW supercharger @ 10psi, 650 RC inj., Hondata reflash, Zigen pro race headers, 70mm Berk tp, invidia N1 exhuast, ACT HD-SS clutch/flywheel and i currently have produced 385whp/275wtq on pump gas with bone stock internals. I will be selling my original CR rims because I have 18 inch ADvan RS-D comming in which will drop around 15 lbs to the rear wheels and a hondata flashpro, I will then retune with that. I was considering a CF driveshaft as well to free up WHP. So, my question is has anyone achieved 400whp with similar mods on pump gas? it seems doable considering I'm at 385whp right now, any thoughts or suggestions to reach my goal? I know tuning and mapping for 98 octane would be very doable which is what I'm considering as well down the line. But for now regular 91(im in CA) pump gas 400whp.

 

I have a MY 07 w/ the SOS stage 2 kit, flashpro ( tuned by Evans) ID 1000cc, Full Blown 340, sos clutch kit, berk 70mm tp, Js racing 70RS dual. Made 409hp/265tq @10 psi at the wheels on a dynapak.

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A driveshaft will not add power but help it Rev faster

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Decrease your cam overlap a couple degrees and free up some torque and hp.

 

sideways speaks the truth. Aside from that I'd ditch the RC injectors and get ID1000s. and retune with flashpro

I have to agree that CF driveshaft will not show a measurable whp gain but you'll feel the difference in rotational inertia.

honestly dude I don't know if you'll be able to hit 400whp

 

even more honest, that blower needs to be kept below its 100k rpm threshold or it will eat itself. 400whp just aint in the cards for that blower. its too small. and if you hit 400, its literally for a second at peak rpm.

 

Thanks for the feedback, yea i havent heard of anyone hitting that high with a KW kit either, wondering if it was possible, of course with a higher octane it is, the one thing that confuses me is 1000cc injectors, i have the 650cc, aren't the injectors good enough,if i get 1000cc and the 650 is pushing enough fuel why would i want to push more how would that help, it seems i would need a bigger blower, then i understand the need for bigger injectors, thanks again

 

We've tuned Kraftwerks kits to over 400whp. It can be done. I don't remember which psi that car was at though

Evan

 

Know someone in the metro area went for 14 psi on his kraftwerks kit. Made 440whp I think and then grenaded on the dyno right after.

 

this happens to most of them that run over 10psi. blower speed destroys it.