Tan clutches in direct?

[77 cruiser]

I have a set of Raybestos tan frictions. Will they work in the directs, dual feeding?

 

[TexasT]

How much power do you plan to put through it? Cruiser or drag car? For the cost I would do some thing fancier. You don't want to have to do it twice and I don't think there is a down side to using a red clutch. That said I didn't dual feed and I did use a raybestos red stage 1 clutch in the direct.

 

[INEEDAGN]

Power level is a factor here. I have some tan borgwarners that I'm planning to use in the direct of my daily driver, because it's mostly stock and I've read the borgs will take a good beating with proper apply pressure. And since it's my own car, I like to experiment and see what I can get away with.

 

[77 cruiser]

I'm at 540hp & 540 tq with a 4100 pound car. It will be a street car but I'll beat on it & it's will possibly some track time.
If the chance is there that it won't hold I'll just go reds. The reds I pulled out were shot steels had spots on them.

 

[turbobitt]

How much power do you plan to put through it? Cruiser or drag car? For the cost I would do some thing fancier. You don't want to have to do it twice and I don't think there is a down side to using a red clutch. That said I didn't dual feed and I did use a raybestos red stage 1 clutch in the direct.

I been testing the Stage 1 waffle frictions in my Th400 and gotta say they are about the best so far. I had a direct drum issue causing a leak in third resulting in only 35-50 psi line pressure in third. Believe it or not the clutched held for the 2 passes I made at 150+ mph. Still running them now since they never showed and damage or slipping.
AG


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[Steve V]

In 09 when I was a bit dumber...lol...I used tans in my entire unit. High 11 car w alky SLIC. Took it out to try a customers trans in it last winter, no issues at all. Tore it down for inspection and the clutches and steel had been hot but not slipping yet. So it was good timing. I was dual feeding also. Also ran a stand alone truecool 4590 cooler. I have since gone back to the radiator and use reds. I have seen a metallic looking friction that Lonnie uses..carbon fiber??? I was told not to use blues on a street car.

 

[SloGN]

Steve V you can use blue plates in a street car......


the clutches are only part of the equation here...gotta have good line pressures so the clutches don't slip much at all during gear changes......

The tan/raybestos clutches will live in a bottom 11 high 10's power with a good sound build up on the vb and pump. along with a good cooler

 

[Steve V]

RC told me 10.50 or faster blues...I don't plan on going that fast. Pressure and calibration are not a problem

 

[SloGN]

RC told me 10.50 or faster blues...I don't plan on going that fast. Pressure and calibration are not a problem

What he really means is for your application installing blues is a waste of money......they will work just fine but for that power level the red altos will like too...hell i had all reds in my trans for a good while at 9 second power

 

[Steve V]

What he really means is for your application installing blues is a waste of money......they will work just fine but for that power level the red altos will like too...hell i had all reds in my trans for a good while at 9 second power

Thanks Pat see you soon.

 

[bison]

Stock frictions will live in a low 10 sec application if the calibration is correct. Clutch type isn't going to remedy a poorly calibrated leaking hydraulic circuit.


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[chris718]

Stock frictions will live in a low 10 sec application if the calibration is correct. Clutch type isn't going to remedy a poorly calibrated leaking hydraulic circuit.


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Very true. What I am starting to see with the NON FACE GROOVED red metallic plate in the 2004r, and only the 2004r,not the TH400, is excessive open clutch pack drag. The spin losses show up in the form of polished steels even on units with an undisturbed friction apply surface. The antirotation encountered by the direct clutch housing is higher than average due to transmission ratio, requiring a minimum of .010" clearance per clutch plate. If the plates have grooves there is a better chance of survival due to the grooves ability to disrupt laminar film between held and driven clutch pack members. The grooves however, reduce overall clutch capacity. With the TH400, an over-engineered transmission to start with and the grooves only make the good design even better.

 

[77 cruiser]

Another question. Is there a shift feel difference between the tans & reds?

 

[chris718]

In my experience the 2-3 is firmer at part throttle with tans, but the same above pt.

 

[77 cruiser]

Chris did you get my 2nd email?

 

[chris718]

Yes sir. Order packed, just need address.