New Best, but bye bye trans!!!
Alan your 121-122 mph trap speed should put you in the High 10's with around a 1.45 sixty IMO. 3600lbs for a N/a car is heavy do you still have everything??? If I was you I would stick with the 4L60E. My buddy keeps going through several of them himself but the wrong guy is building them. He could have saved some money and bought one from some one reputable, lol. Your tranny guy seems good though, 3years and SEVERAL low 11 second passes
.
.I will probably stick with the 4L60E..I'm using a new builder, but the old one was great and the trans lasted for over 3 years and quite a beating with low mid 1.50 60's in a heavy car...I am going to up the stall to 4000 I think...We'll see...For now the output shaft appears to be done along with my ring/pinion
...We'll reveal more tomorrow as we find out whats what...--Alan
Which is why I drove my 4L60E around in no higher than 3rd for a week, just to see what it would be like if I ran a TH400/350. I got tired of it quick, and thats what led me to the 4L80E. I really like it, and it's not half as bad as people try to make it sound. No beating, no cutting holes, and a trans that will laugh at 500-600 horse stock.
Still very impressive Alan, your car is a testiment to what people can do if they get the whole setup to work well together and dont worry about dyno numbers.
-Dustin-
Still very impressive Alan, your car is a testiment to what people can do if they get the whole setup to work well together and dont worry about dyno numbers.
-Dustin-
--Alan
Alan, my point was throwing the latest and "greatest" parets at something is not necessarily the way to build. I have some low 1.6s at 5-600lbs more than your car weighs. I am no engineer but my gut says similar loads.
Output shaft breakage I think would be one of three things, either the R&P went first and took it out, the shifts were too harsh, or just plain old fatigue. I am not a tranny builder either, but I did stay at a Holiday Inn last night.
Output shaft breakage I think would be one of three things, either the R&P went first and took it out, the shifts were too harsh, or just plain old fatigue. I am not a tranny builder either, but I did stay at a Holiday Inn last night.

I love my 4k, I just don't know how efficient Vigilante's are in that high of the stall range.
I guess it's cheap enough to find out!
Alan, my point was throwing the latest and "greatest" parets at something is not necessarily the way to build. I have some low 1.6s at 5-600lbs more than your car weighs. I am no engineer but my gut says similar loads.
Output shaft breakage I think would be one of three things, either the R&P went first and took it out, the shifts were too harsh, or just plain old fatigue. I am not a tranny builder either, but I did stay at a Holiday Inn last night.
Output shaft breakage I think would be one of three things, either the R&P went first and took it out, the shifts were too harsh, or just plain old fatigue. I am not a tranny builder either, but I did stay at a Holiday Inn last night.
--Alan
I know what you are saying...The trans was a proven combination built by a shop that I trust (who is now retired and in Florida)...The builder who has it now thinks it could just be 3 plus years of running it hard just wore it out, the rear could've gone first...And pulling the tires off the ground at 3600 lbs probably didn't help either...The rear gears could be suspect as they were one of the changes I had made a few months back...It'll be hard to tell what came first, the chicken or the egg, but I have a feeling that my wallet will come first no matter how the story is told...
--Alan
--Alan
Is your builder looking around for a better output shaft? If thats the extent of the tranny damage, the bill should not be that high. Like I said Alan, if you were a little closer I could help out. So....you gotta move to Texas. lol Anythig besides the R&P damaged in the diff? I,ve got a good internet source for diff parts. And also, its more likely that the diff took out the tranny. Hope you'er not done for the season. Some good racing weather about now. Good luck with the repair.
Mec
Mec
I haven't heard anything else today about the extent of the damage.. The builder I'm using now comes highly recommended and is very reasonable...He was gong to work on it today, but I haven't heard anything yet, and I got hit with some kind of flu bug last nght and have been hanging on to the toilet for most of the day anyway...
Billet output shaft he we come...
--Alan

Billet output shaft he we come...
--Alan
Is your builder looking around for a better output shaft? If thats the extent of the tranny damage, the bill should not be that high. Like I said Alan, if you were a little closer I could help out. So....you gotta move to Texas. lol Anythig besides the R&P damaged in the diff? I,ve got a good internet source for diff parts. And also, its more likely that the diff took out the tranny. Hope you'er not done for the season. Some good racing weather about now. Good luck with the repair.
Mec
Mec
--Alan
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