Tranny shifting w/ supercharger

[funk_drum]

I have an 02 Limited 4x4. When I jump on the gas and floor it, it pulls really well. Especially around 4K, but when it shifts to second the RPMs drop to around 3000 and I loose a lot of pull untill I get back up to 4K. With the ECT button pushed it helps a little, but still I'd like it not to drop down so low in second. By third I'm going fast enough, 70ish, that I don't need to keep it floored.
(It is my opinion that on ramps are for getting up to freeway speed...I use them as such.)

Anyone have simular shifting issues?

 

[Koz]

The RPM drop at shift point is directly proportional to the trans gear ratios. The only way to change the amount of drop is to change the internal gears. You could have the ECU modified to raise the shift point which would help but you don't want to over-rev the engine and it may not be any faster. You could lower the diff (final) gear ratio to give more power. You already have the extra power with the blower, why bother.

Koz

 

[ebelen1]

I have an 02 Limited 4x4. When I jump on the gas and floor it, it pulls really well. Especially around 4K, but when it shifts to second the RPMs drop to around 3000 and I loose a lot of pull untill I get back up to 4K. With the ECT button pushed it helps a little, but still I'd like it not to drop down so low in second. By third I'm going fast enough, 70ish, that I don't need to keep it floored.
(It is my opinion that on ramps are for getting up to freeway speed...I use them as such.)

Anyone have simular shifting issues?

Isn't this why people do the valve body work on the auto tranny. Not sure which one you have but if auto, search on yotatech for IPT or Level 10.