Dyno Charts Thread

[Dimis]

Originally Posted by Cobra #3170

What was the quoted flywheel HP for the Cobra?

I too am curios.
KC engine, so probably 650hp at the fly

[undy]

Originally Posted by Dimis

I too am curios.
KC engine, so probably 650hp at the fly

It was RWHP.

The engine never hit the dyno with Keith as I only bought the short-block from him. I later bought his Ebock stage 2 CNC'd heads and did the final assembly myself.

It should be around 600 hp, flywheel, but most builders' dyno runs in NO way reflect what the engine puts out in the car. That is unless you subscribe to a 25% dyno loss.

[Cobra #3170]

Originally Posted by undy

It was RWHP.

The engine never hit the dyno with Keith as I only bought the short-block from him. I later bought his Ebock stage 2 CNC'd heads and did the final assembly myself.

It should be around 600 hp, flywheel, but most builders' dyno runs in NO way reflect what the engine puts out in the car. That is unless you subscribe to a 25% dyno loss.

I hear you, exhaust, air cleaner, cool undisturbed air, water pump, alternator then rear end, half shafts, and transmission.

I was talking with the guys at Ford about the 2005 - 2006 GT and they were getting 5 % loss to the wheels because that Recardo transaxle is so efficient. They said if they tested on a cold day they saw 600 at the rear wheels and 535 under normal conditions. Some engines were close to 600 at the flywheel but they did not want to get burned again after the Mustang fiasco so they under rate everything now, it is still pretty amazing how efficient that drivetrain is.