Would you notch a 727 bell that already has an inspection port in it?
Oh wow. That's good to know.
I was misinformed that it was OBD1 only. I don't know as much about Dodges - primarily a Jeep ZJ guy.
Wanted to thank you all again for your help. So busy on the project that I hadn't had a chance to post back! I guess that's a good thing, lol.
Ya I finally made peace with the idea of notching the bell.
Between you guys and my tuner, who's tuned a few serious 727'd Dakotas - I guess it's not going to automatically disintegrate the first time I step on the gas.
Had a bit of "fun" with the flexplate though.
As said above, this particular combo had the balance weight on the face of the converter, which would not allow the flexplate to sit flat. Didn't think to take a pic until after I drilled it off.
I took a look at various flexplates I had. Left to right: 93 5.2, 98 5.2, both neutral balance. Weighted 98 5.9.
Closeup. Note the 93 5.2 has the elongated tombstone shaped bolt surfaces versus the simpler dimple on the 98 FPs. Best part is, the 93 FP has the offset bolt pattern that matched the 727's pattern. 98 FP were both 90 degree patterns.
Just to make it interesting, they all have exactly the same part number. Thanks Mopar! :( lol.
Using this super ultra hi-tech scientific procedure, ROFL! - I determined the 5.9 FP's balancing weight was extremely close to matching the 727's weight. (I'm almost ashamed to share that pic but it was too funny not to!)
So I was thinking of notching the offset hole and using that 5.9 FP. For anyone not familiar with that, the Offset vs 90 degree holes only miss by a hair. Like maybe a millimeter or probably less that 1/10 the diameter of the FP to TC bolt. It's a fairly common practice to do that notching when putting a ate 5.9 into an early ZJ/Grand Cherokee for instance and will still handle some pretty good horsepower per various tranny building folks I've talked to...
Gave that some thought and decided, rather than rely on my half baked backyard physics I'd be better off going with this approach....
Since the weight was going to be a little close to one of the 'windows' the CKPS uses and I don't know exactly how deep the CKPS 'sees', I decided to flip the weight upside down so the tapered edge was to the outside instead. Positioned the flexplate on the TC with the weight behind it. Got the weight positioned, marked it up and took it to a local welder.
727's weight on the (formerly) NB 93 FP.
Yes the weld adds a tiny bit of weight, but I lost a bit drilling through the spot welds so I figure it's still pretty darn close. If it was going to stay like this forever I would have worried more about the precision, but this stuff would all be replaced during the stroker build anyway
So after handling that part, I was finally able to get the bell notched and the CKPS set up.
There's a bit more to this project that I won't bother going into at the moment. I'll put up some pics when I'm done.
Thanks again folks!
Oh wow. That's good to know.
I was misinformed that it was OBD1 only. I don't know as much about Dodges - primarily a Jeep ZJ guy.
Wanted to thank you all again for your help. So busy on the project that I hadn't had a chance to post back! I guess that's a good thing, lol.
Ya I finally made peace with the idea of notching the bell.
Between you guys and my tuner, who's tuned a few serious 727'd Dakotas - I guess it's not going to automatically disintegrate the first time I step on the gas.
Had a bit of "fun" with the flexplate though.
As said above, this particular combo had the balance weight on the face of the converter, which would not allow the flexplate to sit flat. Didn't think to take a pic until after I drilled it off.
I took a look at various flexplates I had. Left to right: 93 5.2, 98 5.2, both neutral balance. Weighted 98 5.9.
Closeup. Note the 93 5.2 has the elongated tombstone shaped bolt surfaces versus the simpler dimple on the 98 FPs. Best part is, the 93 FP has the offset bolt pattern that matched the 727's pattern. 98 FP were both 90 degree patterns.
Just to make it interesting, they all have exactly the same part number. Thanks Mopar! :( lol.
Using this super ultra hi-tech scientific procedure, ROFL! - I determined the 5.9 FP's balancing weight was extremely close to matching the 727's weight. (I'm almost ashamed to share that pic but it was too funny not to!)
So I was thinking of notching the offset hole and using that 5.9 FP. For anyone not familiar with that, the Offset vs 90 degree holes only miss by a hair. Like maybe a millimeter or probably less that 1/10 the diameter of the FP to TC bolt. It's a fairly common practice to do that notching when putting a ate 5.9 into an early ZJ/Grand Cherokee for instance and will still handle some pretty good horsepower per various tranny building folks I've talked to...
Gave that some thought and decided, rather than rely on my half baked backyard physics I'd be better off going with this approach....
Since the weight was going to be a little close to one of the 'windows' the CKPS uses and I don't know exactly how deep the CKPS 'sees', I decided to flip the weight upside down so the tapered edge was to the outside instead. Positioned the flexplate on the TC with the weight behind it. Got the weight positioned, marked it up and took it to a local welder.
727's weight on the (formerly) NB 93 FP.
Yes the weld adds a tiny bit of weight, but I lost a bit drilling through the spot welds so I figure it's still pretty darn close. If it was going to stay like this forever I would have worried more about the precision, but this stuff would all be replaced during the stroker build anyway
So after handling that part, I was finally able to get the bell notched and the CKPS set up.
There's a bit more to this project that I won't bother going into at the moment. I'll put up some pics when I'm done.
Thanks again folks!