quote:

Originally posted by Racer632:
I would check the keyway on the crankshaft

I have seen that one time an it took forever to figure that one out...

Strange it is right underneath the pump maybe 2” below it if that. And I understand what your saying but how could it have been fine for almost 2 years then just start this crap.

My crank trigger pickup is right on top of my Ron’s pump. The wires literally are lying on the pump. Mine is run with shielded cable however so maybe that’s the difference. Never had a problem.

quote:

Originally posted by jimmyc:
Strange it is right underneath the pump maybe 2” below it if that. And I understand what your saying but how could it have been fine for almost 2 years then just start this crap.

I believe what he is saying is he thinks the pump may have become magnetized causing the crank trigger pick up to get interference.
My pump is pretty close to the pick up and I have never had any issues for what that is worth.

I'm thinking that the pump has a plastic pulley........

anyone following the advice no mind buying parts from that douchebag deserves the fucing that's coming their way.

The guy is a hack at best and the definition of a nobody!

This guy has ripped off and plain fuc'd numerous guys over the years who frankly were naive at best, clueless at worst buying his bullshyt.

He was never a competitive bracket racer with his used up POS 1500 lb. former comp car in NHRA division 1 and not one racer competing in the summit ET points series at any track in this division runs an engine built by this former floor sweeper at an engine shop 2 decades ago that has since been kicked out of every local engine shop and as far away as Rochester, NY

Go over to www.realoldspower.com and ask about this snake oil salesman or ask 434 olds here, his former best friend who he fuc'd too.

quote:

and not one racer competing in the summit ET points series at any track in this division

Edwad, what do you know about competing other than run the mouth eliminator

quote:

Originally posted by jimmyc:
Strange it is right underneath the pump maybe 2” below it if that. And I understand what your saying but how could it have been fine for almost 2 years then just start this crap.

Being 2” away from spark plug wires won’t affect crank trigger pulses even if using the none shielded type connecting wires from MSD.

You’d stand a better chance of having interference if the cable was wrapped 360* around the electric water pump motor.

Bender no plastic pulley on mine it’s aluminum.

quote:

Originally posted by jimmyc:
Bender no plastic pulley on mine it’s aluminum.

Ok. But that rules out any kind of magnetism with the pulley

It's not the pulley, it's the gears inside. Whenever you have a belt driven fuel pump, you should have a shielded cable. You shouldn't go near the pump with the msd cable. Most likely your issue is your shifter solenoid, as it re-energizes at the same shift rpm when passing that same rpm in high gear.

just to help prove relavance i have seen exhaust sytems cause static in radios,and it can change.not sure that is the issue though.(pump gears that is)

quote:

Originally posted by Cashflow:
My crank trigger pickup is right on top of my Ron’s pump. The wires literally are lying on the pump. Mine is run with shielded cable however so maybe that’s the difference. Never had a problem.

I use a shielded cable too, but there is 6" or so from the pickup that is unshielded.

I disagree with the supposedly magnetized gears causing interference that was posted.

BUT, I will definitely agree with the possibility of the shifter (only an electric hi amp solenoid type, NOT spring loaded electric type) causing this issue, AND only if it’s being re-energized ON at the end of the run.

If the OP can post the MSD Ignition model being used (Never seen this), what type of shifter activation (electric or air) he is using and what is controlling the shifting, perhaps all of us could learn more.

I still go back to Shanes post on page 1 “ With no data, man you can throw a lot of parts and money at this and may never find it.” . This other data is knowing everything electrical in the car on this end of the forum.

Maybe he should try shifting on time....

Is a three step used for the burnout? Had a button go bad a couple years ago and would cause random misfires down track. Took close to a year to find it without any data, every piece that involved shifting and ignition got replaced! A data logger would have saved lots of time and money!
Duane

Again...

quote:

Originally posted by 1320racer:
Now he needs to look into the engine and based on the info that was recently shared with me by someone that had an engine built by his builder, I wouldn't be shocked to read there’s an issue with the motor.

I have tried shifting on time also still did it. Msd 7 AL3 and the shifter is electric.

quote:

Originally posted by 1320racer:
Again...

quote:

Originally posted by 1320racer:
Now he needs to look into the engine and based on the info that was recently shared with me by someone that had an engine built by his builder, I wouldn't be shocked to read there’s an issue with the motor.

Thought it was the converter, after all 6 experts all said so

quote:

Originally posted by Wooley:
Just a thought I am putting out there, based on my experience with my own car that I have owned and raced 20 years. Go ahead and rewire it. Even if you change nothing but wires and terminals. I am in the middle of doing this for the third time in said 20 years. Every 8 to 10 years my car starts acting crazy getting inconsistent and twice rewire has fixed it after checking and changing springs carbs, ignitions, etc. Just a thought.

Interesting that this came up.
A few years ago I was fussing with/checking the wiring on my nitrous car (never ending it seemed) and a local seasoned stock car racer stopped by. He got around to mentioning that he changes out every wire, connector and switch every winter.

That got my attention and a why?
He said that once they caught on to doing this that they no longer had stupid, mind cramping stuff happening 3/4 of the way into their season.

I decided that for the relatively low cost of doing so that I did the same from then on.

Granted, a circle dirt car is likely way rougher on things than a drag car but it bears consideration.