Re: Ford vs Chevy Build-up
 

Its a Dynamic C4 with a 2.90 gearset. Convertor is a Dynamic Race 8 with mech diode.

Re: Ford vs Chevy Build-up
 

Rich, driveshafts can bind if the u-joints 'break' out of phase..... -Al

Re: Ford vs Chevy Build-up
 

But that bind would exist regardless of rotation direction, right?

Re: Ford vs Chevy Build-up
 

I would think so, Rich. May be worth it to change the pinion angle at the front (both ways) and see if the binding gets better/worse.

Re: Ford vs Chevy Build-up
 

When I had the drive shaft loose from the pinion and holding it aligned with the front the resistance was felt rotating only in one direction and was constant...about half as much the other direction. Not near as free as the Camaro/metric trans for sure. I'll admit I may be ghost hunting here hehe.

Re: Ford vs Chevy Build-up
 

Call Dynamic. Band adjustment, maybe?

Re: Ford vs Chevy Build-up
 

C-4 output shaft turning effort higher in one direction than the other is normal.. there is less turning effort when the rear one way roller is overrunning..... higher effort when the rollers are holding and the gear sets are turning.

Re: Ford vs Chevy Build-up
 

The AODE that I re-built acted the same way. good job so far Rich.

Re: Ford vs Chevy Build-up
 

Rich,

Lean that tune up to around 13-13.2 and watch it pick up a ton!

Re: Ford vs Chevy Build-up
 

Brian - The second pass (handed off to Kenny) he reported 14.0ish before he crossed the stripe. I did not have the camera in the car that pass and took him at his word...was afraid to lean it any further at that juncture. I'm pretty sure it's still a sour air/fuel ratio problem which I will have to get a handle on.

After Alan brought up the drive shaft phasing I began to doubt myself and took a look at it again today...all looks good as far as I can tell. I'll re-check pinion angles again. Car is on a lift with the rear fully extended in the pics, thus the extreme angle at the pinion.

http://i434.photobucket.com/albums/q...psbnu8p54f.jpg

http://i434.photobucket.com/albums/q...pstsmimnoa.jpg

Junk shots under the car...

http://i434.photobucket.com/albums/q...pslwjxhray.jpg

http://i434.photobucket.com/albums/q...psdr2ci9th.jpg

http://i434.photobucket.com/albums/q...psy95w3cbq.jpg

http://i434.photobucket.com/albums/q...psvutg1qtp.jpg

Had some popping going on at cold start initially...figured it was lean at idle and WB confirmed. Gave it a little more fuel at that point and calmed it down. I'm wondering if I should just remove the piggyback for now and let the wideband O2 sensor tell me what to do via fuel pressure adjustment.