Weight and the converter

[Rusty Davenport]

Originally Posted by Joe DeMarzo

Does the weight of a car change the stall of the converter? For example if a converter stallls at 4800 in a 3400 lbs car and you remove 200lbs does it change or stay the same?

Let me dive in for a question again after reading all of this as far as application...... added 200 lbs to change classes...car was running well in lighter class.....do I need to get the converter adjusted to accomodate the heavier class ???? ( 3200 to 3400 lbs ) Also changed the rear gear from 4.88 to 5.00.....rpms at stripe did not change if that means anything...any comments ????

[Billy Nees]

Originally Posted by Rusty Davenport

added 200 lbs to change classes..( 3200 to 3400 lbs ) Also changed the rear gear from 4.88 to 5.00

Well I hope that I don't get raked over the coals for over simplifying this but by adding 200 lbs. you would make the converter "act" looser but by adding the gear you would make it "act" tighter. Clear as mud.

[Rusty Davenport]

Originally Posted by Billy Nees

Well I hope that I don't get raked over the coals for over simplifying this but by adding 200 lbs. you would make the converter "act" looser but by adding the gear you would make it "act" tighter. Clear as mud.

Are you saying the gear change should have put the converter in the same operating mode as the lighter class with the shorter gear ???

[Adger Smith]

Yes, that is what he is saying and your finish line RPM is telling you. Didn't you see where I said if you change the low gear, rear gear too, the way the converter works will change? Your gear change was 2.4% so the steeper gear made the converter work tight enough to overcome the weight and the extra rpm the gear ratio should give you at the finish line.