tav 30 converter

redflash

Well-known member
Messages
650
Reaction score
629
My stock #30 torque converter has a stock red spring in the driven....help me understand....what is the result if I replace it with a yellow spring...a green spring ?
does that change the rpm at which the converter engages, or just the torque ( or bang) when it engages. ?
What I would like to accomplish is for the torque converter to engage at a somewhat lower rpm...to get rolling before I have to give so much gas ?
teach me please....

Da flash
 

madprofessor

"Loose Cannon Creations"
Messages
2,899
Reaction score
971
Location
Jacksonville, Florida
Centrifugal clutch engagement to get you rolling is exactly that, the centrifugal clutch (the driver) engaging at a certain rpm. You can do 2 things:
(1): You can change the 2 garter springs around the clutch in mere seconds with matching pairs of other colors for different rpm engagement.
(2): You can change from zinc weights to aluminum weights. Other folks here can tell you a lot about that.
Read this thread link below where I found the engagement ratings of different color garter springs on zinc and aluminum at OMB Warehouse.........
(5) Colored springs ratings on chinese TC.......... | DIY Go Karts
 

itsid

Moderator
Staff member
Messages
11,563
Reaction score
259
Location
Ruhrpott [Germany]
as said: engagement speed is set by the weights/garter spring combo in the driver

for the driven though:
for all I know the red spring and the green on the secondary are identical in material and thickness [and thus spring rate]..
IIRC somewhere around 1996 or so Comet just changed the colour, to match with the series 40 colour scheme (I think)
and changed back to green when the chinese made their springs red as well.
so a series 30 green spring should be perfectly identical with a series 30 red spring.

the yellow (tav series 30) spring has a higher spring rate, and thus prolongs the shifting process a bit,
giving you a longer "torque" mode and delaying the "speed" mode a bit.
there's even a golden one even stiffer than the yellow ...

'sid
 
Top