SVTPerformance - View Single Post - New tune with powerpipe and exhaust on D1SC

Erich · 10-19-2009, 12:16 PM

Mark VIII motor
cobra crank
manley rods
diamond 9cc dish pistons
03 cobra cams
98 cobra intake
03 cobra exhaust manifolds
Procharger D1SC 3.4 inch pulley
SLP catted X pipe
Tuning by Dave at SGS

Initial tune with nasty plastic procharger blower inlet pipe and small air filter plus stock ford catback. 489 hp/439 tq 17-18 psi boost Air filter was flattened. 23 degrees of timing

Changed to homemade 4 inch powerpipe and Pypes race pro catback. This time first pull was cut off at ~6000 rpm making 537 hp and climbing. Boost heading towards 20 psi. Dangerous situation with 93 octane. Cut the timing back to 20 degrees and got spark blow out. Gapped the plugs down from 0.032 to 0.024.

Final numbers 527 hp/463 tq with a nice safe tune for pump gas. 20 psi boost at 7000 rpm. Gains over the previous tune increase thru the entire powerband. Unfortunately raining the whole day and weekend, did not get to have much fun with it.

So as it turns out, it was good to get it tuned again. I had thought I heard some detonation after the powerpipe when running hard in 3rd and 4th (always let off at the first sign).

Erich

10-19-2009, 12:16 PM	#1 (permalink)
Erich Crazy SVT Poster Join Date: November 2007 Location: MD Posts: 259 0.30 per day Trader Rating: (1)	New tune with powerpipe and exhaust on D1SC Mark VIII motor cobra crank manley rods diamond 9cc dish pistons 03 cobra cams 98 cobra intake 03 cobra exhaust manifolds Procharger D1SC 3.4 inch pulley SLP catted X pipe Tuning by Dave at SGS Initial tune with nasty plastic procharger blower inlet pipe and small air filter plus stock ford catback. 489 hp/439 tq 17-18 psi boost Air filter was flattened. 23 degrees of timing Changed to homemade 4 inch powerpipe and Pypes race pro catback. This time first pull was cut off at ~6000 rpm making 537 hp and climbing. Boost heading towards 20 psi. Dangerous situation with 93 octane. Cut the timing back to 20 degrees and got spark blow out. Gapped the plugs down from 0.032 to 0.024. Final numbers 527 hp/463 tq with a nice safe tune for pump gas. 20 psi boost at 7000 rpm. Gains over the previous tune increase thru the entire powerband. Unfortunately raining the whole day and weekend, did not get to have much fun with it. So as it turns out, it was good to get it tuned again. I had thought I heard some detonation after the powerpipe when running hard in 3rd and 4th (always let off at the first sign). Erich ____________________________________ 1997 Mustang GT-Forged 93 Lincoln 4V, Cobra Intake, Procharger D1SC 1989 Notch-DIY Twin Turbo Last edited by Erich; 10-19-2009 at 01:40 PM.