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Re: transmission fluid [Re: BradH] #2557730
10/02/18 04:07 PM
10/02/18 04:07 PM
Joined: Jan 2003
Posts: 8,005
Tulsa OK
Bad340fish Offline
master
Bad340fish  Offline
master

Joined: Jan 2003
Posts: 8,005
Tulsa OK
Originally Posted By BradH

Is that before or after you drove 100+ miles one way to the track every weekend for a month?



I had a 727 in my car 16 years with the same cheap type F in it, it also had 5 drag weeks on it. No problems, i only pulled the trans to switch to a 904.

On Drag week 18 I got the trans hot in the mountains(the new 904), noticed way more converter slip than normal and the cooler couldn't be touched by hand. I let it cool off for 30 minutes then back to the road. I expected to need to change the fluid the next morning but it was as clear and clean as when I put it in.


68 Barracuda Formula S 340
87 "Chrysler" Conquest
Re: transmission fluid [Re: Bad340fish] #2557741
10/02/18 04:22 PM
10/02/18 04:22 PM
Joined: Feb 2005
Posts: 20,116
PA.
pittsburghracer Offline
"Little"John
pittsburghracer  Offline
"Little"John

Joined: Feb 2005
Posts: 20,116
PA.
The more synthetic fluids out there the longer the cleanups are. You wouldn’t believe in this day an age how many guys still use hose clamps on their engine and transmission lines.


1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27

Livin and lovin life one day at a time




Re: transmission fluid [Re: pittsburghracer] #2557788
10/02/18 05:16 PM
10/02/18 05:16 PM
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
B
BradH Offline
Taking time off to work on my car
BradH  Offline
Taking time off to work on my car
B

Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
Originally Posted By pittsburghracer
... You wouldn’t believe in this day an age how many guys still use hose clamps on their... transmission lines.

whistling

Note to self: Upgrade trans lines to replace hose clamps on the four (4) high-pressure connections for the two (2) high-pressure trans-spec rubber lines between the hard lines and the trans cooler.

EDIT: The hard line & trans connections are flared and barbed, respectively, but I definitely want to update this stuff.

Last edited by BradH; 10/02/18 06:24 PM.
Re: transmission fluid [Re: pittsburghracer] #2557795
10/02/18 05:29 PM
10/02/18 05:29 PM
Joined: Dec 2005
Posts: 11,408
Fulton County, PA
C
CMcAllister Offline
Mr. Helpful
CMcAllister  Offline
Mr. Helpful
C

Joined: Dec 2005
Posts: 11,408
Fulton County, PA
Originally Posted By pittsburghracer
The more synthetic fluids out there the longer the cleanups are. You wouldn’t believe in this day an age how many guys still use hose clamps on their engine and transmission lines.


...or cheap, rubber gas line because it's a lot less money. Everything on a race car should be a threaded connection except for maybe radiator hoses.

The Rossler recommendations seem fine. I've tried high end synth street ATF and didn't like how the clutches looked. Heat streaks from slipping on apply. Amsoil makes a racing synth Type F which I understand is developed from oil used in large powershift units in large equipment. "B&M & TCI fluids" and also ATI fluid is rumored to be repackaged powershift/hydraulic equipment oil, so there's that.

Again, we used Valvoline/NAPA Type FA, changed it every 50 runs or so and had no fluid issues. Pro tree, 6000 on the mat, no 2 step, every pass.


If the results don't match the theory, change the theory.
Re: transmission fluid [Re: CMcAllister] #2557892
10/02/18 07:38 PM
10/02/18 07:38 PM
Joined: Feb 2005
Posts: 20,116
PA.
pittsburghracer Offline
"Little"John
pittsburghracer  Offline
"Little"John

Joined: Feb 2005
Posts: 20,116
PA.
I think I have around 100.00 in my transmission lines that were made at a local hydraulic shop. Being my powerglide runs hot I told him the temps and he used lines to handle it. My fuel fitting are also AN style fittings as are my radiator hoses. Sure makes things safe and nice to work on.


1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27

Livin and lovin life one day at a time




Re: transmission fluid [Re: BradH] #2558124
10/03/18 10:00 AM
10/03/18 10:00 AM
Joined: Jan 2003
Posts: 13,319
Marion, South Carolina [><]
an8sec70cuda Offline
I Live Here
an8sec70cuda  Offline
I Live Here

Joined: Jan 2003
Posts: 13,319
Marion, South Carolina [><]
Originally Posted By BradH
Originally Posted By pittsburghracer
... You wouldn’t believe in this day an age how many guys still use hose clamps on their... transmission lines.

whistling

Note to self: Upgrade trans lines to replace hose clamps on the four (4) high-pressure connections for the two (2) high-pressure trans-spec rubber lines between the hard lines and the trans cooler.

EDIT: The hard line & trans connections are flared and barbed, respectively, but I definitely want to update this stuff.

Just use AN braided line. I have -6 braided steel lines on both my cars. 1/8" NPT to 6An fittings for the trans and radiator if I recall correctly. Normal braided line works great...been on my car for probably 14 years now. If you feel uneasy about it, use the more expensive braided line w/ the Teflon (?) liner like you'd use on high pressure nitrous lines.


CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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