Straight on. 6 o clock
Thats mine.We were running on the springs at Greer (10 lbs) and had a shock problem. Only ran 5.38
Thanks

 

Been too busy getting my shop and house done. Post a pic of the final motor setup.

 

Heres the engine

 

Here it is.
http://www.youtube.com/watch?v=B4YPkcPIHSM

 

hmmmm there goes my other theory......did all the plugs look the same?

 

lean corners on blowthrough seems to be fairly common on the ford engines also.

http://www.theturboforums.com/smf/in...c=126908.0;all

the opposite happens with efi because the fuel flow to each cylinder is the same but air flow is higher on the short runners.

I would definately put an EGT on that cylinder.
seems like it would have showed up on the plug sooner.

 

Someone mentioned 8 EGT sensors. How do you monitor 8 gauges same time? Will take alot of space, too.

https://ls1tech.com/forums/11561072-post48.html

 

haha I am in that video... I'm standing against the wall in complete admiration LOL. I remember that run, course its hard to forget a 5 second run at greer, doesn't happen very often on T&T nights.

 

The cheap way is to use something like an extech hand held with peak /hold. I have a couple of them. One does 4 stations at the same time, with peak hold.. Then you just move your probes around for a few passes in testing to find the lean cylinders, then keep an eye on those. The best part is you just turn it on, and view it after a pass.....as long as your pretty sure you wont actually melt anything. It might take a few half, 3/4 passes to get confortable knowing your tune before making full passes.

I remeber dutweiler doing elbow, turn down testing on some manifolds, and nothing was how it was suppose to be. He ended up offseting the hats on the ntakes a couple inches to get closer to an ever distribution. It could probably be done like the turbo buicks also, with a plate. Search power plate on tb.com.....Jason Crammer (friend) in Utah makes them for buicks. Same problem different hole.

 

you have a part number on the extech?

Good read thanks

 

The plugs looked good

 

Something like the Altronics unit or the like is what I was thinking. Seem to be pretty good.

http://www.altronicsinc.com/pages/redalert.html

 

He is correct, I have seen Knock on a graph but it was not present at logging, Why? dont know but maybe because spool up time was so fast and at a very short burst it did not have time to pick it up. Under extreme cylinder pressure and a rotating mass spinning at a very high RPM, it doesnt take much to detonate for 1 second and cause the damage you received...

 

Never trust a KR log, depends on the sensors sensitivity settings. Whats your comp? You are nice and rich but timing kills. on 17psi with those big turbos you generate a lot of cylinder pressure and those pistons may not take it weather its detonating or not. I would be running a headset with that much boost to check knock and I would pull a few degrees back from there, I bet mph would not drop off anyway.