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Old 05-22-2013, 01:30 AM   #354
Batman
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Join Date: Jun 2012
Drives: Tiguan, S4, SBC 350 Wrangler
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Quote:
Originally Posted by Draco-REX View Post
Ok, I did this once before in one of the "Lost" Innovate threads, so let's do it again:



First, let's convert the units to something more familiar.

Stock 106kW = 143hp
Final 163kW = 219hp

Now, stock, we know the engine produces about 200hp. And a good rule of thumb is that a RWD with a manual transmission and independent suspension loses about 15%. So:

.85 * 200 = 170rwhp

That's a little on the high side, but still in the neighborhood of most stock dynos which land around 165hp. So we know we're on the right track. To keep things conservative, however, let's go with 165rwhp.

So we have what we should see at the wheels stock and what this dyno is showing. We can determine the percentage difference here.

165 / 143 = 1.15

A dyno that would report 165rwhp on a stock car is reading 115% of the dyno used on this graph. We can now figure out where the modified numbers would be:

219 * 1.15 = 251rwhp

Not the biggest numbers we've seen, but very respectable. This puts the crank hp at roughly:

251 / .85 = 295hp at the crank.

What I REALLY like is the shape of the torque curve. Lots of meat where it counts. This kit will be a dream at AutoX for those like me that don't give a fig about classing. The tough part will be getting the rears to hook coming out of the corners. But that's half the fun.
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