My new drag toy. 93 lx coupe carbed LS1/th400. (pics) by JRracing

By diyauto
( 4 )

4 minute(s) of a 190 minute read

1-4-2008


The problem ended up being to slow of a crankingspeed. They said it needs to spin at least 230 rpm's to get a signal. I put another battery on it and a charger on boost and started showing rpm's on the laptop. This was with the plugs out to take the compression off. It worked. So I put the plugs and wires back on and tried again. It almost started once. But I think it is still not spinning fast enough. It was only showing 190 rpm's on the pc. I ended up boiling the battery over. So it's trashed. I'm going to get a bigger battery and try again tomorrow.

At least I know what the problem is now. I just want to hear the motor run. Then I'm going to pull it and get it ready to put in my camaro.

I dropped the 383 off at the machine shop today. And I picked up the painless wiring race car kit.


1-5-2008

Houston, we have ignition! I got the bitch started today!!!!!! Bout ******* time.
I'm not real sure what the problem ended up being as we changed several things at once and it started sparking.
1. I hooked the power and ground straight to the optima battery. We had it so juiced it was starting to boil.
2. I put the original crank sensor back in. I don't think this had anything to do with it.
3. We put my starter in it out of the camaro.

I think the starter could have been causing "noise" so my man said. He has seen this problem with nissan's with the crank sensor next to the starter. If the starter has any problems with in it, like the winding's or dragging at all, it makes signal noise which the CS will pick up causing spastic signal in the sensor. In this case a new starter fixed the problem. But my father and I had it firing last night with the other starter, so this might not be it!

It would not run off of the gas in the tank, it was old and smelled bad. I pumped all of it out and went to my house and got 5 gallons of 110 octane, put that in and primed it up to the carb. It popped right off and fired up with a little help of either.

We ran it for about 15 minutes to check the oil pressure and other vitals. The motor ran very well. I should of taken a video of it running. But I was so excited it was running I didn't think about it.

We were standing there bull shitting, I started disconnecting everything, next thing you know I have the motor ready to come out. We went ahead and pulled it. It's on the floor now.

I'm glad I took it out in stead of running it like it was, when we pulled it the right side mount got hung up because they are welded directly to the K member, and it ripped the plate right off of the cm tube that is welded to the K member. Now I know why you don't mig cm tubing!!!!!


All in all I think it something to do with either the starter or wiring to power and ground to the battery. When I got it fired, it was only using the optima battery with no charger on it. So I'm still not clear on what it was.... I'm just glad it's running now, or was. We'll see what happens when the 383 goes in. I'll have the whole car re wired then.


I'll snap some pics tomorrow.



Comments

Great build!

Posted by Diggymart on 2/1/21 @ 1:15:12 AM