Super Ram users please take a look...
Thread Starter
Former Vendor
Joined: Jun 2001
Posts: 7,204
Likes: 6
From: St Marys PA
Super Ram users please take a look...
Guys,
I have been battling this problem with my low end for about 2 weeks now. Ever since someing from the track and getting less than satisfactory performance. Much of the problem along with solutions is listed in the following post.
If you could be as kind to take a look and see if any of you guys might be able to diagnose the problem, I would be VERY grateful. The guys on the other post have exhausted themselves trying to help. I am thankful to them for their help and am hoping if I get this topic a bit more publicity it will not only possibly cure my problem, but also help others that may be or will have the same problem as I do.
Thanks for looking.....Please idea in the other post...That way everything will remain in the same post for others to view.
Thanks again. Here is the post:
http://forums.corvetteforum.com/zerothread?id=283240
I have been battling this problem with my low end for about 2 weeks now. Ever since someing from the track and getting less than satisfactory performance. Much of the problem along with solutions is listed in the following post.
If you could be as kind to take a look and see if any of you guys might be able to diagnose the problem, I would be VERY grateful. The guys on the other post have exhausted themselves trying to help. I am thankful to them for their help and am hoping if I get this topic a bit more publicity it will not only possibly cure my problem, but also help others that may be or will have the same problem as I do.
Thanks for looking.....Please idea in the other post...That way everything will remain in the same post for others to view.
Thanks again. Here is the post:
http://forums.corvetteforum.com/zerothread?id=283240
Instructor
Joined: Jan 2002
Posts: 111
Likes: 0
From: Reno NV
Re: Super Ram users please take a look... (ski_dwn_it)
OK here's my 2-cents!
1. Get your scan tool & start testing! Find out what’s going on with the T/C lockup, ECM may have issues? Also watch your Voltage, if it gets below 12VDC at any time you’ve got power/ground issues.
2. That comment about zero knock count @ WOT doesn’t jive to well! ECM/ESC may have issues? (Items 1. & 2., you might want to try swapping the ECM to see if it’s defective!)
3. Is the Chip’s enrichment parameter set correctly for Throttle tip-in? (Watch the Integrator & BLM values @ idle and WOT, should be somewhere around 128).
4. Someone has mentioned the Lifters being an issue, I haven't seen the spec's on your "upgraded springs". If the seat/open pressures are to high, the lifters will not pump up enough until higher Oil pressure is achieved with RPM's. (Hyd-Roller Lifters don’t like much over 135# seat/350# open springs!)
5. How modified is your MAF and did your Chip get burned with compensated parameters? This won't matter at WOT because the ECM is in open loop.
6. Do an exhaust backpressure test from your O2 bung, if you can get over 3psi @ idle or revving start looking for new Cat's.
7. As someone has suggested already, your fuel system my have pressure issues, so a Schrader Valve, F/P Gauge may be a wise purchase.
If all else fails, check your lash, do a leak-down test, try using a few bottles of Isopropyl Alcohol based Gasoline water remover (the kind at the Auto parts Store, not the Drug store:rolleyes: ), test the Injectors impendence with a DMM - should measure around 15-16Ohms, start suspecting the ignition system (try swapping out the HEI module), run your engine at night and look for excessive arcing from the plug wires/plugs.
If all that fails, try a 10Lb. Sledge Hammer repeatedly, or 5 gallons of gas, a match and a call to your Insurance provider:reddevil! :nono:Just kidding!:nono:
:crazy:NanoBrain:crazy:
1. Get your scan tool & start testing! Find out what’s going on with the T/C lockup, ECM may have issues? Also watch your Voltage, if it gets below 12VDC at any time you’ve got power/ground issues.
2. That comment about zero knock count @ WOT doesn’t jive to well! ECM/ESC may have issues? (Items 1. & 2., you might want to try swapping the ECM to see if it’s defective!)
3. Is the Chip’s enrichment parameter set correctly for Throttle tip-in? (Watch the Integrator & BLM values @ idle and WOT, should be somewhere around 128).
4. Someone has mentioned the Lifters being an issue, I haven't seen the spec's on your "upgraded springs". If the seat/open pressures are to high, the lifters will not pump up enough until higher Oil pressure is achieved with RPM's. (Hyd-Roller Lifters don’t like much over 135# seat/350# open springs!)
5. How modified is your MAF and did your Chip get burned with compensated parameters? This won't matter at WOT because the ECM is in open loop.
6. Do an exhaust backpressure test from your O2 bung, if you can get over 3psi @ idle or revving start looking for new Cat's.
7. As someone has suggested already, your fuel system my have pressure issues, so a Schrader Valve, F/P Gauge may be a wise purchase.
If all else fails, check your lash, do a leak-down test, try using a few bottles of Isopropyl Alcohol based Gasoline water remover (the kind at the Auto parts Store, not the Drug store:rolleyes: ), test the Injectors impendence with a DMM - should measure around 15-16Ohms, start suspecting the ignition system (try swapping out the HEI module), run your engine at night and look for excessive arcing from the plug wires/plugs.
If all that fails, try a 10Lb. Sledge Hammer repeatedly, or 5 gallons of gas, a match and a call to your Insurance provider:reddevil! :nono:Just kidding!:nono:
:crazy:NanoBrain:crazy:
