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851 views 4 replies 5 participants last post by  OddRodder 
#1 ·
I was looking at some stuff on Ebay and came across This . The HP gain seems a little high to me. Maybe I am wrong, I have never heard a figure on HP gained with a crank scraper but this looks like a little too much. Just wondering what you all thought.

Cory :D
 
#3 ·
I actually asked a couple of engine shops about that same piece for my motor. The response was that in a mild street motor, there will be no significant increase. They all said if I was turning 7,000 + rpm, you might see 4-5hp out of it. I was even offered actual dyno sheets on them. I believe 15hp is a little exagerated, my opinion.
 
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