advantages of a 9" converyter...

[87blackbuick]

what are the advantages of a 9" converter over a 12"?


thanks

 

[2quiktocare]

The most immediate difference is the 9" is capable of being stalled at higher speeds with less stress than the 12". Mark

 

[S10xGN]

I was under the impression that the torque multiplication factor on a 9" was around 2.4:1 vs 1.8:1 on a 12"?

 

[bruce]

Also,
Lighter Weight and lower moment of inertia.

They are also generally slightly looser so they flash to a higher rpm, for a given stall speed.

Allow the engine to recover faster after a gear change. With all the engine variables, it's easier to get the engine to or higher then peak torque with a loosed converter.

 

[Robes87GN]

I was looking to rebuild my tranny this winter, and i was looking at a few places to build it. In the meantime ive been researching converter size and stall size. Im stuck on the 9" inch, but debating between 3000 and 3200 stall. This will be a 450hp car in a few years i hope. What should i use?

 

[2quiktocare]

I'm not gonna say a thing. Mark


9X11

 

[Two Lane]

Originally posted by bruce


Also, Lighter Weight.

And that's reciprocating weight, where ounces matter!


Combining sufficient strength at the least weight...

That's the ticket!

 

[Just a Six??]

From the suggestions I've been hearing for me, if your TA-49 and bluetops 3000 should be fine. Really depends what your goals are & how many other parts are going in as well!