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HP loss at Wheels

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Old May 3, 2003 | 09:46 AM
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chadburns2's Avatar
chadburns2
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From: Aurora, Colorado
HP loss at Wheels

As some of you may know, I am having a 390 built. My guy tells me I can expect close to 400HP when we are done (and I am broke). I am assuming that figure is at the flywheel. Can any of you guys tell me what kind of HP difference there would be at the wheels? Just kinda curious what kind of loss there will be. 50, 100, 200HP loss? Thanks guys. Oh BTW, as soon as I hear back from Rob at Blue Oval Performance on the condition of the block, I will post an update on the Junkyard Engine.


Chad Burns
1968 390 2v Auto
Aurora, CO
 
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Old May 3, 2003 | 11:36 AM
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gtex
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HP loss at Wheels

I'd plan on 15-20% loss with an automatic tranny. If you have a 4x4, plan on a bit more loss in the transfer case.


I'd expect to see 300-320 at the rear wheels if you're making 400 at the crank.

It would be good to see some rear wheel data. All of this speculation and desktop dyno numbers has me wondering what these old FEs are really up to.
 
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