Can you turn the rev limiter off to see if it is causing the problem?
I'm not sure? I ran out of time last night to keep going on it. It's possible I suppose that the Rev Limiter setting of 5700 is too close to actual RPM and the ECM is getting ahead of itself??? It didn't do it last year though when it was set at 5600 rpm.
It won't shift from 1 to 2 at WOT, or 2 to 3 etc otherwise shifts great under normal driving.
What did Lonnie say was causing this?
Won't shift at WOT in any gear but shifts fine otherwise. Lonnie said it has nothing to do with the tranny I'm just not getting enough rpm to hit the shift pressure at WOT.
set the valve lash to .006 ? are you running a solid roller?
I have the short travel comp 885's .004 to .006 is the correct lash setting according to Comps website.
Check out this thread. Post #37 was what cured his problem. Not saying you have the same problem but there are some good suggestions to look at for the problem you are experiencing in the thread.
http://turbobuick.com/threads/all-out-of-tricks-breaking-up-5300.187101/#post-1313173
I will check that out thank you.
What plugs are you using? Non resistor type can cause the power logger to stop recording because they have more RFI which messes with the computer.
I would run the engine up to your desired engine speed at part throttle low boost, less than 5psi. Hold it in 2nd gear. If it cannot do this then it certainly will not run up properly at WOT. This exercise will help identify issues and will be easier on your motor and give you some data that's useful for tuning the VE table.
Plugs are R5671A-9 currently gapped at .028 which worked fine last year motor wise but I did have trouble with PL interruption at WOT once in a while. Have resistor racing plugs on the way to give them a try.
I did run the motor up to 5200 rpm (VDO tach reading anyway) just like you said and it cut out (Bap Bap Bap) I didn't have my laptop so I didn't log anything. I was running out of time and went for a short cruise to see if I had made any progress which I didn't.
I thought I would post here before I start throwing parts at it and wasting a lot of time. All I did from last year to this year was pull motor, change head gaskets that were leaking oil, re install motor with new trans and go again. Then this problem showed up???? Since it's not trans related then what is it?
I had the timing cover off so I reset the cam sensor. I used the caspers tool like always.
I had the crank sensor off the motor but it looks fine and not interfering with balancer.
Other than that everything is plug and play.