Ok I thought I would ask this question. Is there a Plausible Power Gesstimation tool or formula?

I have read various other forums about convertion rates and alike ranging from 20% > 27% > 30% Driveline loss. And few little formulas to go from RWKW to FWKW using either

rwkw x 1.33 (or 1.34 or 1.36 ( off various different sites)) But I am sure this is the conversion rate from Kilowatt to Horsepower Output.

So I am trying to get a plausible rwkw reading.

So taking 27% of the 164kw of the AUII XR6 = 119.48rwkw....In Stock Form.

Does this sound plausible?

You are right on the money if its stock, if its auto thats what you can expect. I got 132rwkw with headers, exhaust, cat and filter. Dyno will be able to give you a very good estimate for fwkw, mine was nearly 180.

Edit: The dyno guy said stock they will make around 115 for an auto, and was surprised that those mods gave me that gain. Easiest way to think of it is RWHP=FWKW, very close to anyway.

something along the lines of RWKW converted to horsepower =the same amount of kilowatts at the engine..

eg..
my bf xr6 turbo. 225 rwks.. (highest dyno reading on veyu generous dyno) lol

225RWKW =301.5hp

so engine KW is roughly 301.5KW..

remember.. 1 KW =1.34 HP

1 hp = 0.746kw
1 kw = 1.34 hp

These are exact figures from a conversion chart in the back of my diesel mechanics book by Ed May.