Ford vs Chevy Build-up

GallopinGhost · 05-11-2015, 09:01 PM

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

fordteacherguy · 05-12-2015, 12:09 AM

Rich,

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

HandOverFist · 05-12-2015, 01:15 AM

Quote:

Originally Posted by fordteacherguy

Rich,

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

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.

Junk shots under the car...

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.

SSGT Mustang · 05-12-2015, 06:23 AM

Is it an illusion, or has the u-joint moved? It looks like it's not fully seated to the end of the bore on that yoke (bottom bore in this picture).

HandOverFist · 05-12-2015, 07:12 AM

I'll look at it close today, but if you view the rear it has about the same appearance.

Edit : U-joints are fine.

HandOverFist · 05-12-2015, 07:02 PM

Failing to find anything of significance thus far I feel its time for a large move to test for effect. I have either missed the mark on the engine assembly or the fuel events are way off. Thinking of removing the aftermarket controller and letting the factory ecu do it's thing...I can adjust the fuel pressure and monitor the wide band O2 readings.

SSGT Mustang · 05-12-2015, 10:03 PM

Don't do that. You'll hit the rev limiter, and not be happy.

It's your first time out. Leak the motor and adjust the valves, then bring it to test and tune. Make 10 hits, make one change at a time, and log the changes.

It sounds a bit sluggish out of the hole. You may need to give it more timing. Let the engine and trans find their way. Don't be afraid to lower the shift points. What did you install the cam at?

Most importantly, talk to John Pressing. He went 11.50 in L/S I believe 10 years ago in one of those cars. There are lots of guys with good experience on this board, but from my point of view John's the guy you want to talk to.

05-11-2015, 09:01 PM	#1
GallopinGhost Member Join Date: Jun 2010 Location: VA Posts: 230 Likes: 23 Liked 21 Times in 13 Posts	Re: Ford vs Chevy Build-up The AODE that I re-built acted the same way. good job so far Rich. __________________ Brian Carpenter Stock 1358

05-12-2015, 12:09 AM	#2
fordteacherguy Member Join Date: Jun 2007 Location: Federal Way, WA Posts: 238 Likes: 32 Liked 160 Times in 51 Posts	Re: Ford vs Chevy Build-up Rich, Lean that tune up to around 13-13.2 and watch it pick up a ton! __________________ Brian Thompson NHRA Stock / Super Stock Class P/SA 6665 SS/MA 6665

05-12-2015, 06:23 AM	#4
SSGT Mustang Member Join Date: Mar 2005 Location: Jersey Posts: 359 Likes: 35 Liked 204 Times in 54 Posts	Re: Ford vs Chevy Build-up Is it an illusion, or has the u-joint moved? It looks like it's not fully seated to the end of the bore on that yoke (bottom bore in this picture).

05-12-2015, 07:12 AM	#5
HandOverFist VIP Member Join Date: Oct 2013 Location: Gulf Breeze, FL Posts: 1,651 Likes: 8 Liked 33 Times in 16 Posts	Re: Ford vs Chevy Build-up I'll look at it close today, but if you view the rear it has about the same appearance. Edit : U-joints are fine. __________________ Rich Taylor I/SA - 321 Last edited by HandOverFist; 05-12-2015 at 01:51 PM.

05-12-2015, 07:02 PM	#6
HandOverFist VIP Member Join Date: Oct 2013 Location: Gulf Breeze, FL Posts: 1,651 Likes: 8 Liked 33 Times in 16 Posts	Re: Ford vs Chevy Build-up Failing to find anything of significance thus far I feel its time for a large move to test for effect. I have either missed the mark on the engine assembly or the fuel events are way off. Thinking of removing the aftermarket controller and letting the factory ecu do it's thing...I can adjust the fuel pressure and monitor the wide band O2 readings. __________________ Rich Taylor I/SA - 321

05-12-2015, 10:03 PM	#7
SSGT Mustang Member Join Date: Mar 2005 Location: Jersey Posts: 359 Likes: 35 Liked 204 Times in 54 Posts	Re: Ford vs Chevy Build-up Don't do that. You'll hit the rev limiter, and not be happy. It's your first time out. Leak the motor and adjust the valves, then bring it to test and tune. Make 10 hits, make one change at a time, and log the changes. It sounds a bit sluggish out of the hole. You may need to give it more timing. Let the engine and trans find their way. Don't be afraid to lower the shift points. What did you install the cam at? Most importantly, talk to John Pressing. He went 11.50 in L/S I believe 10 years ago in one of those cars. There are lots of guys with good experience on this board, but from my point of view John's the guy you want to talk to. Last edited by SSGT Mustang; 05-12-2015 at 10:06 PM.