problem

[Raptor]

Head won't effect it this time, (sealed tight checked it with acetone) no bent valves likely with those numbers, try the oil on the rings now and see if you don't get a different result. Are you using the same tester you did and identicle procedure, revolutions etc? Was it tested at operating temps both times?

[slowbubblecar]

We will have to redo it again. The same tester is used and the car was cold this time. It was warm last time we checked and it had good compression. We have no way to get it warm now. I am pretty sure the same revolutions. We did 7. I hate this stupid car.

[Raptor]

Get it running and then test it again. Did you try a different set of coils & transistor? You should see about getting eric to come check everything for you, he catches that stuff pretty quick.

[LightningGSX]

If you want, I can probably make it out there Fri night, Sat afternoon or Sun afternoon.Which ever works for you.

[JET]

I am going with either a bad ground (would explain slow cranking) or a bad ECU.

[LightningGSX]

I am going with either a bad ground (would explain slow cranking) or a bad ECU.
I believe they've tried several ECUs.Ground is a definite possibly, it wouldn't explain the lack of spark though.

[slowbubblecar]

We tryed 3 working ecus and that isn't the problem. We tryed a two coils but still no luck and we tryed another power transistor. All of them were off working cars. To get the starter to crank, we had to rewire the starter from the ignition skipping the relay to the signal wire because the signal wire didn't get power. The starter was grounded though so I don't think that effects it though. Erik, I will PM you and leet you know what time works best. I will have to look at my schedule first though.

[LightningGSX]

I think Jet was talking about the chassis/engine to battery ground.

[slowbubblecar]

I thought so too, but I am not sure what we would have disconnected. I don't see any missing. I might try to add a few more today.

[john]

I am going with either a bad ground (would explain slow cranking) or a bad ECU.

The ground wire is connected to the battery. The starter seems fine to me, it is just noticeable that there is a lack of compression. Similar to the bent valves sound, just not as severe. The ground is connected to the starter as why the car still cranks. It is grounded on the bolt that mounts the starter to the tranny.

What is pissing me off it that I did 5 head swaps last year and I had no problem what so ever. This time, the valves get bent in a rebuilt head, and compression drops from near perfect to the rebuild range on the other after the other rebuilt head. I gained 5 psi per cylinder in my car after a new HG and valve seals.