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Registered
Join Date: Aug 2006
Location: Cincinnati, Ohio
Posts: 1,019
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It is possible I might be able to be talked back to 16V land. But the K-Jet...my vote is rid yourself of that one. You can't beat pulsed injectors for this sort of requirement. 400 HP with just head and cam work might be a bit positive for a goal, but if you can get it there, more power to you.
For now the focus is on 32V cars I just picked up an EPROM burner and the new chips for the car. The last welding of the oil cooler lines will be done tomorrow AM. With any luck at all I should be able to turn the key by Sunday evening. Get her idling on the stock system and then start to tune it in. Somehow I think this dial in is going to be terribly easy (Thanks John!).
Seeing as my last build on a 4.7 liter broke 450 ft-lbs and 400 HP to the tire on just 10 psig...I have big expectations for this car. 300 more ccs and starting with 320 off the crank, better turbos, better manifolds, better fuel and ignition management, knock control, etc. Everything is just more refined and further developed.
I've seen one of these turbos in .64 a/r housing support 370+ WHP on a SR20 Nissan. My housings are significantly larger than this. I'm aiming to keep my backpressure to a minimum to maximize the mid range and top end powerband on this car. The whole thing was designed for 650 off the crank with some reserve. Most of the "hardware" will support 750-800 HP by the book...but I don't think the driveline or stock internals will hold that much torque. Additionally, you have to be able to feed it when it is on the bottle...so larger pump(s) and lines would need to be installed before it could ever get to these levels.
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Kuhn Performance Technologies, LLC
Big Gun: 1988 928S4 Twin Turbo, 5-SPD/LSD 572 RWHP, 579 RW ft-lbs, 12 psig manifold pressure. Stock Internals, 93 octane.
Little Gun: 1981 928 Competition Package Twin Turbo, 375 RWHP, 415 RW ft-lbs, 10psig manifold pressure. Nikasil Block, JE2618 Pistons, 93 octane.
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