Rebuild old heads, or buy new?

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09-24-2008 | 10:23 AM

#31

helomechs

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Quote:

Originally Posted by Doc

This desktop "dyno" ? ... how accurate is that ?

not at all! thats for sure...

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09-24-2008 | 10:26 AM

#32

helomechs

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Quote:

Originally Posted by Commando

I think I may have screwed something up somewhere, as when I put the numbers from the dyno into the drag program, it says I can get up to 130 miles per hour in the quarter. Which seems a little high to me, so I am going to find out if I can get better stats from Edelbrock for the parts I have.

power to weight calculators are probably gonna be a lot more accurate than those programs. its pretty simple but more realistic i think. i used several "desktop dynos" then went to a real dyno. the computer crap isnt even close to accurate. not one bit.

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09-24-2008 | 11:03 AM

#33

Commando

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From: New Jersey

I can't say anything for the other ones, but this one seemed pretty good as they take a lot of factors into the equation, for the heads it asks you about the gasket. I am not saying its accurate, but I could believe that if I cared to read more of the manual then I already did, then I could get a better answer, especially if I purchased their accompanying products, like they have one with 9000 different cams in it. But they can only get so accurate, as when I put the info from the dyno into the desktop dragster that's where I think the differences occur, I am sure that is more unrealistic.