I spent the day at Wayne Presley's today where he tuned the car in just right on his Mustang Dyno.
The carburetor had .037 Idle Feed Restrictors installed, which were way too large and were causing the engine to run very rich. Wayne changed them out to .032s i believe, he set that timing at 38 degrees advance and then the dyno tuning began. The end result was larger jets all around, some larger air bleeds in the rear and a good running engine that is a torque monster. The hp was a bit lower than i expected, but overall, i am certainly happy due to the torque numbers.
End result 442 HP at the wheels and 515 ft lbs of Torque. Oh, and remember, this is a mustang dyno not a dynojet.
Power peaks out at around 5700rpm
Engine specs
-527 stroker kit, 10.2:1 compression
-850 CFM quickfuel
-Ported edelbrock heads-cant find the valve size currently that Keith craft upgraded them to, but will dig it up eventually, with port matched edelbrock performer rpm intake.
-Keith Craft Comp cams Hydraulic roller with 242/248 duration and .645/.635 lift, 112 lobe separation.
-T&D Shaft Mount Roller Rockers
I gave the car just a short burst of throttle in the driveway and it will certainly scoot.
Alignment is set for Monday and then she will officially be road ready.
Special thanks to Wayne for all the help and for putting up with me staring over his shoulder all day.
Oh, and for those that might think you dont need a dyno tune. The jet change on the secondaries ended up netting an additional 20rwhp.
Oh, and yes you will see some smoke blow off the passenger header.
Oil is blowing past the dipstick compression fitting at high RPM and spraying the header. So, that will need to be addressed first thing tomorrow morning.
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