lml allison build pressure question...Ratiotek or TCM tuning ??

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marc75

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Apr 22, 2009
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Hi Guys like title said on a built trans with 700whp + do im better with pump stock and TCM tuning or Ratiotek kit with factory pressure in TCM ??
suncoast clutches and 3disk converter of course...

thank you
 
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marc75

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Apr 22, 2009
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PR or PRX kit ? orange or yellow spring ? LML S369SX-E w/60s Kory tuning should be in 700whp range
 
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marc75

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installed PRX ratiotek kit w/shim and hit 400psi (2016denali with T87) ....i think it's too much do i need to switch to PR kit ? only remove shim ? change VB spring ? thank you for your help
 
Mike L.

Mike L.

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marc75 said:
installed PRX ratiotek kit w/shim and hit 400psi (2016denali with T87) ....i think it's too much do i need to switch to PR kit ? only remove shim ? change VB spring ? thank you for your help
Click to expand...

400 psi on a spike is not too high.
 
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marc75

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Apr 22, 2009
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ok...can you tell me the best way to check psi... wot throttle ? cruise 60 mph ? and what psi should i see and temp ?
thank you
 
Mike L.

Mike L.

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First of all you have to tell me everything you used in the kit. I can't see what you did. Which accumalator spring did you use in the valve body ( blue or tan )? Any trans tuning?
Install pressure gauge and check idle pressure. Then start driving truck and see what the gauge does on every upshift and downshift. What is the pressure when TCC occurs?
Last; come to a stop and launch the truck at WOT. How long will the pressure hold at wide open before it drops to idle pressure.
Write all this down. Then post it up.
 
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marc75

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Apr 22, 2009
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Mike L. said:
First of all you have to tell me everything you used in the kit. I can't see what you did. Which accumalator spring did you use in the valve body ( blue or tan )? Any trans tuning?
Install pressure gauge and check idle pressure. Then start driving truck and see what the gauge does on every upshift and downshift. What is the pressure when TCC occurs?
Last; come to a stop and launch the truck at WOT. How long will the pressure hold at wide open before it drops to idle pressure.
Write all this down. Then post it up.
Click to expand...



Ok ill do monday thank you ....installed pressure gauge 0-500 on CTS2 ill take video with app % beside trans line...in valve body i took the longer spring...trans shift great and temp is good too ....hit 150* when floor it after 2 pass an drop to 120* but outside temp here was 5*F


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Mike L.

Mike L.

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marc75

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Mike L. said:
Make sure you change both filters often as those carbonite clutches shed a lot of material. They are known to sand themselves down. They will hold a lot of power while they are alive.
Click to expand...



Ok thank you Mike...do you suggest other clutches ?


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