cgornowich
forum member
Here's the reader's digest condensed version:
First: I bought a 2008 Racecraft (Saleen), with the usual supercharger, and promptly went to JDM where they installed their "500 HP at the wheels" upgrade: smaller pulley (3.2), upgraded fuel pumps, big mouth intake and a DYNO TUNE. She was a different car, fun to drive, torque everywhere and endless power!
Second: I went Summit Point and did a few track sessions, we gotta drive these damn things, right? After the 5th track session, a couple rods were left on the track. Stuff happens.
Third: Out with the old 3V and in with the new 3V. Ford Racing aluminator 5.0 liter forged everything short block, ported Ford Racing heads M-6049-463VP3 (stock valves, mild porting, larger intake ports, and the smallest COMP Cams 127050 (only a hair more lift, and duration, lobe separation is a little tighter than stock). While I'm down there, also slid in a T56 magnum and a McLeod dual disc clutch and a lightened steel flywheel. Pretty minor changes...
Now: She's all together, starts and runs (after throwing a P0351 code, seems I connected only 7 of the coils, my bad). I'm doing my "break in everything" drives when I can, almost 100 miles so far. I stay under 3,500 rpm and keep to the backroads to keep shifting. Here's the thing: totally different car. When she's cold, she runs like a bat outta hell, she'll light up the wheels if you breath on the gas pedal. Once warm, she seems like she's down 50-75 ft lbs under 3,000 rpm. I expected to have the slip the clutch a little more in first gear, the flywheel is lighter and first is slightly taller, but she seems more sluggish than she should be. Plus, more cc's, 4.6 to a 5.0 should get me a little more torque And that damn clutch howl below 2k rpm is crap, I'm seriously thinking about getting a different, single disc clutch, but that's not the big issue. She engages fine, it's just the racket.
My question is should I get a fresh tune? Maybe the mild cam change (more overlap) is causing a problem. Maybe it's the combination of parts and a tune would make her run warm like she does cold. What are your thoughts? I'm thinking go back to JDM, they did a great job last time. What does the group think?
First: I bought a 2008 Racecraft (Saleen), with the usual supercharger, and promptly went to JDM where they installed their "500 HP at the wheels" upgrade: smaller pulley (3.2), upgraded fuel pumps, big mouth intake and a DYNO TUNE. She was a different car, fun to drive, torque everywhere and endless power!
Second: I went Summit Point and did a few track sessions, we gotta drive these damn things, right? After the 5th track session, a couple rods were left on the track. Stuff happens.
Third: Out with the old 3V and in with the new 3V. Ford Racing aluminator 5.0 liter forged everything short block, ported Ford Racing heads M-6049-463VP3 (stock valves, mild porting, larger intake ports, and the smallest COMP Cams 127050 (only a hair more lift, and duration, lobe separation is a little tighter than stock). While I'm down there, also slid in a T56 magnum and a McLeod dual disc clutch and a lightened steel flywheel. Pretty minor changes...
Now: She's all together, starts and runs (after throwing a P0351 code, seems I connected only 7 of the coils, my bad). I'm doing my "break in everything" drives when I can, almost 100 miles so far. I stay under 3,500 rpm and keep to the backroads to keep shifting. Here's the thing: totally different car. When she's cold, she runs like a bat outta hell, she'll light up the wheels if you breath on the gas pedal. Once warm, she seems like she's down 50-75 ft lbs under 3,000 rpm. I expected to have the slip the clutch a little more in first gear, the flywheel is lighter and first is slightly taller, but she seems more sluggish than she should be. Plus, more cc's, 4.6 to a 5.0 should get me a little more torque And that damn clutch howl below 2k rpm is crap, I'm seriously thinking about getting a different, single disc clutch, but that's not the big issue. She engages fine, it's just the racket.
My question is should I get a fresh tune? Maybe the mild cam change (more overlap) is causing a problem. Maybe it's the combination of parts and a tune would make her run warm like she does cold. What are your thoughts? I'm thinking go back to JDM, they did a great job last time. What does the group think?
