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Registered
Join Date: Aug 2006
Location: Cincinnati, Ohio
Posts: 1,019
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I am still working out all of the details on the cost of the components. The plan is to offer the system for sale. I never set out to produce a lot of systems, but to try and produce the best forced induction system for the 928. Turbocharging is a natural for a car of this type for many reasons including the following:
No added stress on the engine when just cruising (no belt tugging the crank)
You can be cruising at 15" Hg and boot it hard and have full boost pressure in very short order.
Very low noise levels
Most efficient way to add power to any engine
No belt to slip or break
Smooth roll-on of power, but only when you ask for it
Boost as a function of load, not RPM.
Overhead capacity to go really far if you want to turn up the boost screw
Superior modulation of boost to the manifold, use it only when you need it. The turbo allows you to run in a little boost or a lot, based on load and throttle position.
Where it counts it is hard to beat a turbocharger, namlely across the mod range and top end. The 928 is not a 0-60 car, but rather a touring car that loves to eat up lots of road when you drop the hammer. I already own a 1981 Twin Turbo 4.5 liter that performs really well out on the open road. I'm expecting a lot more out of this car...500 ccs more plus a much higher flowing head and intake should make for some great results. 600HP out of this engine should not be too difficult at all. Who knows, I may even be surprised with it.
As I stated I am still ironing out details on the costs so I can set a sell price. This system will not be competing on price with 928 SC systems, but on the flip side, the price will be reasonable for what is included. There are a lot of parts, none of them all that complicated, but there are a lot of them.
I need to finish this build, run it in and then do some serious daily driver testing of the car. Once all of that is completed, I will be able to come up with a final number and then do a proper product roll-out. I would expect things could be ready to up and going by mid 2007.
Thanks for the positive feedback.
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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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