98 SNAKE EATER
Well-Known Member
Got a built TF727 in my 69 Road Runner with Blue plate frictions, Kolene steels, Cheetah reverse manual valve body and an FTI 4000 stall converter.
When we put the converter in, I was a bit worried about running such a high stall on the street and didn't want any overheating issues, so I replaced the old B&M cooler with a HUGE 45,000 BTU cooler and swapped out the old deep sump pan from 440 Source for an even deeper deep sump pan with cooling tubes from Derale
As a result, on the hottest day of the Summer here in Orlando, the fluid temp never broke 125*, even after 2 hours of driving :headbang:
Thing is, now that Winter is here, it just seems to take forever to operating temps (or in my case, warm enough to shift smoothly)
Earlier this week, I got a high of 111* after driving in traffic for an hour and doing 3 pulls on a back road before pulling into the shop :icon_confused:
Is there such a thing as too cool when it comes to these old trannies?
The big cooler came with a thermal bypass valve, but my trans builder suggested not using it cause in the event of a valve failure, it would smoke the trans :iamwithstupid:
So far, no issues other than really harsh shifts for the first 15 minutes or so (enough to chirp my redlines with any amount of throttle, but not too bad with the fat Mickeys)
When we put the converter in, I was a bit worried about running such a high stall on the street and didn't want any overheating issues, so I replaced the old B&M cooler with a HUGE 45,000 BTU cooler and swapped out the old deep sump pan from 440 Source for an even deeper deep sump pan with cooling tubes from Derale
As a result, on the hottest day of the Summer here in Orlando, the fluid temp never broke 125*, even after 2 hours of driving :headbang:
Thing is, now that Winter is here, it just seems to take forever to operating temps (or in my case, warm enough to shift smoothly)
Earlier this week, I got a high of 111* after driving in traffic for an hour and doing 3 pulls on a back road before pulling into the shop :icon_confused:
Is there such a thing as too cool when it comes to these old trannies?
The big cooler came with a thermal bypass valve, but my trans builder suggested not using it cause in the event of a valve failure, it would smoke the trans :iamwithstupid:
So far, no issues other than really harsh shifts for the first 15 minutes or so (enough to chirp my redlines with any amount of throttle, but not too bad with the fat Mickeys)
