Pontiac - Street No question too basic here!

          
 
 
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Old 07-29-2019, 04:00 PM
Va68goat's Avatar
Va68goat Va68goat is offline
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mgarblik,
The problem with the dyno is that I have received two different texts from Paul regarding if the noise could be heard in the dyno room. When the knocking noise was first discovered he sent a text and said there is no way he could have heard that knocking noise. Before he received the motor back, he sent me a text that he would have heard the knocking noise. When he dyno'd it this last time he said he would have heard it because 5 people were in the room and he wasn't wearing ear protection and he didn't hear the knock at idle. We can't assume anything regarding what could be heard in the dyno room. Apparently Paul made a comment on this thread about posting a video of my motor on the dyno, at idle but it hasn't been posted yet.

chiphead,
I've limited the cooks in the kitchen this time. I really don't want to mention the compression tests until we verify it with another gauge and a charged battery. I think that would be fair.

Formulajones,
I don't want to upset Mike or anyone else but I've been the one listening to this motor knock for over two years. I think the reason he thinks it subsided at 12 degrees is because it was idling around 1000-1100 rpm's. Ive been down that road of getting excited to hear "less" knocking but as soon as you bring it to normal idle, it's the exact same knock as before. I don't have to know motors to hear the same knock that has kept me off the road for 2 years.

mgarblik,
The fuel pump. That was blocked off and run off the fuel in the bowls. It knocked. We pulled the converter..it knocked. The knocking was consistent with the Street Avenger carb and the Jeff Koerner carb. We tried new wires and distributor..it knocked. Again, I don't know if the dyno room is conclusive if the knocking could be heard or not. Here are the pictures of my motor when it was on run 2 of the 4 times on the dyno. These pictures are when numbers were taken during the run. The top picture is the most recent one. I know this because it has 2 air breathers. I didn't do that until after I got the motor the first time. The bottom one is with headers even though it was known I was using manifolds. I assume it was done to get better numbers and to see how much more headers would give me.
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Last edited by Va68goat; 07-29-2019 at 04:19 PM.
 


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