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Injuneer · 03-18-2005, 01:01 PM

You have to remember.... the LT4 in the Corvette came with a cam that is not much bigger at all than the stock LT1 cam. The "LT4 Conversion Kit" comes with the LT4 HOT cam, which is a bit more aggressive than the stock LT4 cam.

MORE Performance tested the LT4 conversion kit back in 1998 or so, and got 429 flywheel HP on an engine dyno. I think that was sort of optimistic, because it also included LT headers, larger TB, larger injectors, and was tuned using a $3,000 aftermarket engine management computer. I also doubt they had any of the accesories installed on the front of the engine.

I don't think it would be unreasonable to see at least 400-420 flywheel HP out of the "conversion", so that would put you around 330-350rwHP in an A4 and 345-365rwHP with an M6.

03-18-2005, 01:01 PM	#5
Injuneer Join Date: Oct 2004 Location: East Brunswick, NJ Posts: 155 iTrader: (0)	You have to remember.... the LT4 in the Corvette came with a cam that is not much bigger at all than the stock LT1 cam. The "LT4 Conversion Kit" comes with the LT4 HOT cam, which is a bit more aggressive than the stock LT4 cam. MORE Performance tested the LT4 conversion kit back in 1998 or so, and got 429 flywheel HP on an engine dyno. I think that was sort of optimistic, because it also included LT headers, larger TB, larger injectors, and was tuned using a $3,000 aftermarket engine management computer. I also doubt they had any of the accesories installed on the front of the engine. I don't think it would be unreasonable to see at least 400-420 flywheel HP out of the "conversion", so that would put you around 330-350rwHP in an A4 and 345-365rwHP with an M6. __________________ Fred 1994 Formula - 381ci / 300-shot N2O / TH400 / Gear Vendor OD / Strange 12-bolt 4.11 - 11.5@117 on straight motor