617 TQ & 572 HP @ 14psi

[McLovin]

5.0L Porsche 928 S4 twin turbo built by John Kuhn. This is a friend of mine. In fact, he's the brother of the guy who I've been working with to paint my turbo 928. There's still a little power left to gain with more tuning but not much I would say. This is all on a stock 23 year old engine with 100k miles on it. The head gaskets weren't changed. The plan is to use this engine as a guinnea pig and learn its limits and eventually make it fail. Then swap the engine with one built for boost that he already has sitting on the shop floor. That built engine has forged pistons with a lower C.R. as well as stronger forged rods and ALOT of head work to allow it to flow more air. The plan is to boost the built engine to 20 psi. :eek:


http://www.floridagerman.com/forums/attachment.php?attachmentid=1916&d=1279547066
http://www.floridagerman.com/forums/attachment.php?attachmentid=1917&d=1279547066
http://www.floridagerman.com/forums/attachment.php?attachmentid=1915&d=1279547066

[ohdavey6286]

Wow! Is this through an auto?

[Oceanside A4]

5.0L twin turbo he should be able to break 600hp easy with the new engine

[McLovin]

5 speed. And the goal for the new engine is WAAAAY over 600whp

[JRiggs]

Wow those motors are stout. This is what you wb needs!!

[Odie]

Need pics of the car, despite how beautiful the pics of the dyno is.

[McLovin]

Need pics of the car, despite how beautiful the pics of the dyno is.

I agree. I tried loading pics of the car a few times yesterday but they wouldn't load. For some reason my computer saved them as some sort of HTML file or something. :dunno:

Anyway, the dyno sheets are for the 2nd 928 S4 TT he's built. Here are some pictures of the prototype car he built for himself. The install for the 2nd car was a whole lot cleaner even though this one is pretty nice too ( except for that horse LOL ).

You'll notice that there are twin A/A intercoolers mounted in the front wings in front of the tires. They are ducted with fresh air from the front of the car. Turbos are garrett GT series dual BB units.

http://www.floridagerman.com/forums/attachment.php?attachmentid=1918&stc=1&d=1279630863

http://www.floridagerman.com/forums/attachment.php?attachmentid=1919&stc=1&d=1279630863

http://www.floridagerman.com/forums/attachment.php?attachmentid=1920&stc=1&d=1279630863

http://www.floridagerman.com/forums/attachment.php?attachmentid=1921&stc=1&d=1279630863

[802Hoop]

As if 600 hp isn't enough, lol!

[Maximus]

yes please

[McLovin]

yes please

I know right! I'll take two :D