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Boy have I got a story to tell...

bobtile

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Finally an answer to me fighting this gen3 hemi the last 2 years.

1000022438.jpg
 
Care to elaborate? :)

Good to see you posting again. :thumbsup:
 
It didn't run well on Kingsford Charcoal Lighter Fluid.
:lol:
 
I think we need a closer look at piston tops.
 
Must be one hell of a story. He last posted an hour ago. Bob must be typing like a banshee. Hurry up, I need to piss and go to bed. :rofl:
 
2 years ago I switched over to the gen 3 hemi platform as some of you already know.
I ran it for a full season last year but had nagging performance issues with it. ( backfiring, not wanting to start, inconsistent. )
I had someone build the motor for me. I did all the research and purchased all the parts.
Motor was assembled and I brought the ignition controller up to run the motor on a run stand.
It sat there for nearly 2 months trying to fire this thing.
Made a lot of calls and had people look it over with no luck.
Finally after I was completely discouraged I went through all my paperwork. All of that looked good until I found a packing list from Molnar.
Let me go back and say I purchased most everything from mmx in Virginia. They were great to deal with.
I bought the crank and reluctor from them but that was shipped directly from Molnar.
Back to the packing slip. I looked up the part number for the reluctor wheel they shipped and it was the wrong one. Called MMX and he pulled his order.
He ordered the correct one so molnar made the mistake.
Anyway, now what to do.
Up until that point, you needed to use a 32 tooth reluctor to run these ignitions.
Mine was a 58.
I had 2 choices at that point.
1 pull the motor apart and install the correct reluctor or
2 use a prototype ignition controller for the 58 tooth reluctor that Mmx had on its dyno.
I took the prototype.
Engine fired up and ran well on engine stand.
After the first pass I noticed some of the gremlins that plagued me last year.
I fought through that all season blaming the ignition controller.
The car ran anywhere from 9.45 to 10.35.
Tough to bracket race like that.
Fast forward to this year.
I decided to change the reluctor and and do rings and bearings since it was going to be apart.
Same guy did the freshen up.
Motor ran on run stand so I put it in the car and went to a race in Florida in March.
On the track it fell flat on its face. Spent the weekend at the track rewiring and trying other things.
After a couple weeks playing with it, it seemed to run better.
Went to Island Dragway and did basically the same thing.
Spent another couple weeks trying different things with no luck.
After being completely out of options I pulled the motor.
I took the front cover off , put the engine on TDC and noticed the cam phaser was substantially off target.
It had sheared the locating pin on the cam.
That's my problem for this year...
Digging further, I pulled the cam phaser apart and noticed that it wasn't locked out like it needed to be.
The phaser swings timing 18.5 degrees either way. 37° total..
Now I'm worried about my valves.
They somehow are fine.
After a few calls to people involved, I realized the wrong cam phaser was installed right from the beginning.
Bingo.
That was my problem from last year as well.
At this point I decided to check everything myself on the motor. I found more ...
All the arrows on the main caps were pointing backwards. Wrong way!
I don't know if he line honed with caps backwards or if they were put on that way afterwards or if it even matters.
So I tore the whole motor apart and am dropping the block off at Alan Prusienski's shop.
I'll be assembling everything myself this time.

20250414_145230.jpg


20250413_153522.jpg


20250412_171555.jpg


20250417_065522.jpg
 
2 years ago I switched over to the gen 3 hemi platform as some of you already know.
I ran it for a full season last year but had nagging performance issues with it. ( backfiring, not wanting to start, inconsistent. )
I had someone build the motor for me. I did all the research and purchased all the parts.
Motor was assembled and I brought the ignition controller up to run the motor on a run stand.
It sat there for nearly 2 months trying to fire this thing.
Made a lot of calls and had people look it over with no luck.
Finally after I was completely discouraged I went through all my paperwork. All of that looked good until I found a packing list from Molnar.
Let me go back and say I purchased most everything from mmx in Virginia. They were great to deal with.
I bought the crank and reluctor from them but that was shipped directly from Molnar.
Back to the packing slip. I looked up the part number for the reluctor wheel they shipped and it was the wrong one. Called MMX and he pulled his order.
He ordered the correct one so molnar made the mistake.
Anyway, now what to do.
Up until that point, you needed to use a 32 tooth reluctor to run these ignitions.
Mine was a 58.
I had 2 choices at that point.
1 pull the motor apart and install the correct reluctor or
2 use a prototype ignition controller for the 58 tooth reluctor that Mmx had on its dyno.
I took the prototype.
Engine fired up and ran well on engine stand.
After the first pass I noticed some of the gremlins that plagued me last year.
I fought through that all season blaming the ignition controller.
The car ran anywhere from 9.45 to 10.35.
Tough to bracket race like that.
Fast forward to this year.
I decided to change the reluctor and and do rings and bearings since it was going to be apart.
Same guy did the freshen up.
Motor ran on run stand so I put it in the car and went to a race in Florida in March.
On the track it fell flat on its face. Spent the weekend at the track rewiring and trying other things.
After a couple weeks playing with it, it seemed to run better.
Went to Island Dragway and did basically the same thing.
Spent another couple weeks trying different things with no luck.
After being completely out of options I pulled the motor.
I took the front cover off , put the engine on TDC and noticed the cam phaser was substantially off target.
It had sheared the locating pin on the cam.
That's my problem for this year...
Digging further, I pulled the cam phaser apart and noticed that it wasn't locked out like it needed to be.
The phaser swings timing 18.5 degrees either way. 37° total..
Now I'm worried about my valves.
They somehow are fine.
After a few calls to people involved, I realized the wrong cam phaser was installed right from the beginning.
Bingo.
That was my problem from last year as well.
At this point I decided to check everything myself on the motor. I found more ...
All the arrows on the main caps were pointing backwards. Wrong way!
I don't know if he line honed with caps backwards or if they were put on that way afterwards or if it even matters.
So I tore the whole motor apart and am dropping the block off at Alan Prusienski's shop.
I'll be assembling everything myself this time.

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View attachment 1839270

View attachment 1839271

View attachment 1839272
Wow that is crazy... glad you found the issues. And i have a hard time trusting anyone to do work.. if it's gonna be wrong i would rather do it wrong myself :)
 
Wow that is crazy... glad you found the issues. And i have a hard time trusting anyone to do work.. if it's gonna be wrong i would rather do it wrong myself :)
Yeah it’s a lot cheaper to screw it up yourself too. Cut out the middle man.
 
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