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mrud 04-27-2007 02:44 PM
Dyno Question
 
I had my BB dyon'd the other day and when I rec. the report, I noticed that the curves did not cross at 5200 RPM. I like the numbers but I wonder if it is accurate. 427 SO. w/' 750 Mech. Holley. Max Torque: 434. Max HP 373 at rear wheels. AF Ratio 12.7. What do think?
Mike R

blykins 04-27-2007 03:13 PM
I don't think there are any exceptions at all. Both curves should always cross at 5252.

Anthony 04-27-2007 03:31 PM
Quote:
Originally Posted by blykins
I don't think there are any exceptions at all. Both curves should always cross at 5252.
The curves won't appear to cross at 5252 if the scales for the HP and torque are different.

blykins 04-27-2007 03:32 PM
Good point Anthony. I'm used to seeing both curves on one graph....but they may have separated his.

mrud 04-27-2007 03:35 PM
Dyno
 
Your are correcto mundo! The scales are different. What do you think of those #'s for my BB though?
Mike

blykins 04-27-2007 03:40 PM
Seems pretty stout.....very torquey. Probably about 500hp, 550 lb-ft if I were to guess.

RICK LAKE 04-28-2007 04:57 AM
Nice numbers Mike
 
mrud Mike Nice numbers, should run strong through the midrange. Your numbers are almost the same as mine. I have a 452 motor. 12.5 in the 1/4 mile, about 108mph. 12-14 gpm. stress relief YES. Face hurts after road test from smile PRICELESS.;) :) :D Don't worry if the lines on the graph don't cross at 5K. It starts, runs, turns right, turns left, and most important it STOPS!! :eek: That's at you need. A nice sunny would be nice too. Rick L

Anthony 04-28-2007 06:04 AM
Quote:
Originally Posted by blykins
Good point Anthony. I'm used to seeing both curves on one graph....but they may have separated his.
Actually, the curves can be on the same graph, but with different scales. For example:

http://www.clubcobra.com/photopost/d...run_427_HR.jpg


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