honesty is the best policy,insanity is a better deffense 1.036, 6.16@ 224
June 29, 2019, 06:06 AM
Rodney Pryor
Hooked my pressure sensor to the cooling line once by accident last year. Saw a momentary spike to 205 after the shift.This message has been edited. Last edited by: Rodney Pryor, June 30, 2019 01:21 PM
June 29, 2019, 05:45 PM
rusty
thanks
honesty is the best policy,insanity is a better deffense 1.036, 6.16@ 224
June 29, 2019, 09:31 PM
rusty
a friend has one that is 200 at idle on return side of cooler any thoughts
honesty is the best policy,insanity is a better deffense 1.036, 6.16@ 224
June 30, 2019, 01:23 PM
Rodney Pryor
Not a transmission guy but is there any restriction in the transmission lines or cooler that might cause the pressure increase?
June 30, 2019, 02:14 PM
rusty
he changed valve body and pressure is same.hasn't checked cooler yet
honesty is the best policy,insanity is a better deffense 1.036, 6.16@ 224
thanks mike and bob,i wonder of an issue he has at 200.i know most dont monitor this circuit so many of us dont know what our pressure is ,and me also
honesty is the best policy,insanity is a better deffense 1.036, 6.16@ 224
June 30, 2019, 07:56 PM
banjo
I started monitoring money after Greg from FTI recommended it. Seeing variance could indicate issues. Mine shows 45 psi at idle, and peaks at 145 just prior to the stall of the converter.
Never would have though that much pressure was in the cooler circuit. 200 seems crazy.
Bill Simpkins 74 Nova SBC 406 3240 pounds Speierracing heads
60 1.27 (10/16) 1/8 6.03@111 (10/16) Best 9.87@131 on the rev limitor 1 Feb 2013
Does the transmission get hot just idling in park or neutral?
Quick disconnect cooler line fittings?
What input shaft and pump/stator tube, could be a mismatch?
Is the feed slot for high gear centered on the two sealing rings on the backside of the pump?
June 30, 2019, 08:33 PM
rusty
1 not sure all new components 2 will check 3 all new build from bte,not their conv 4 not sure good info for things to check thanks
honesty is the best policy,insanity is a better deffense 1.036, 6.16@ 224
June 30, 2019, 08:49 PM
Mike Rietow
I'd suggest to try a different converter first being it's a new BTE build. They've built a few PG's, know what they're doing.
I've seen a converter cause this. Transmission got hot sitting still idling. Don't know if ya'll have a temp guage for the transmission but that's the indicator.
You're welcome,,,,,,,,, good luck.
July 02, 2019, 06:02 PM
Mike Rietow
quote:
Originally posted by rusty: he changed valve body and pressure is same.hasn't checked cooler yet
What is the line pressure @ 2,000 rpms in gear?
July 02, 2019, 07:26 PM
chasracer
We had someone in a dragster the other week blow a line off at the hammer, ran it straight down the track and the guy at the ticket shack said it looked like a jet boat with the spray coming out of it. That was 2 hours of downtime.
changed tranny,290 line@68 cooler,same convertor.tranny going back to bte.not what is going on ,yet
honesty is the best policy,insanity is a better deffense 1.036, 6.16@ 224
July 02, 2019, 11:21 PM
Mike Rietow
quote:
Originally posted by rusty: changed tranny,290 line@68 cooler,same convertor.tranny going back to bte.not what is going on ,yet
In that case it's a fluke the bushing that acts as a ring in the stator tube slid in the tube and is covering or partially covering the cooler orifice in the tube. You know cooler pressures checked good before it left BTE. It's a fluke the bushing slid in the tube.
68 sounds good. We put over 100 laps with a F3r on a big chief 632 2500-3000hp with 250 psi line pressure. When it got jacked up around 290 we couldn't keep a band in it pin bias.
July 03, 2019, 07:22 AM
rusty
quote:
quote: Originally posted by rusty: changed tranny,290 line@68 cooler,same convertor.tranny going back to bte.not what is going on ,yet
In that case it's a fluke the bushing that acts as a ring in the stator tube slid in the tube and is covering or partially covering the cooler orifice in the tube. You know cooler pressures checked good before it left BTE. It's a fluke the bushing slid in the tube.
68 sounds good. We put over 100 laps with a F3r on a big chief 632 2500-3000hp with 250 psi line pressure. When it got jacked up around 290 we couldn't keep a band in it pin bias.
its going back for inspection now. i use sonnax bias control,works great but i find that bands are nit strong enough and roll on the ends .we are lowering presure.at 265 now i think.next freshen will tell
honesty is the best policy,insanity is a better deffense 1.036, 6.16@ 224
July 03, 2019, 07:23 AM
rusty
thanks for input from all
honesty is the best policy,insanity is a better deffense 1.036, 6.16@ 224
July 03, 2019, 09:42 AM
Mike Rietow
It'll behoove you to be familiar with placement and installation of the bushings that act as rings in the tube 48 spline or 1" ringless high HP. I'm sure BTE will lend a hand in this regard.
