Is a quick shift the same thing as a hard shift?

I don't drive my IROC very hard, and sometimes I like smooth shifts at low RPM. But sometimes I would like to get to the next gear quicker than my stock 700R4, especially when I get on the accellerator a little. I just don't wan't slamming shifts. Can a transmission be tuned to do this?

 

Absolutely! A shift can happen quickly and be firm, without being HARD. The trick is to NOT disable the accumulators, like most shift kits do. I have seen "modded" transmissions that had a HUGE spring in the accumulator valve, a solid spacer in the line bias valve in lieu of the spring, and of course, spacers to disable the 1-2 and 3-4 accumulators. That is just rediculous. There are other and better ways to firm up shifts. I use the Vette servo, .500 boost valve, and the TransGo reprogramming kit, wich offers great shifts. If you use the TransGo, you will see a sheet to tell you how to firm up the 1-2 shifts. Use the Vette servo like they reccomend, but do not enlarge the 2nd clutch feed to the size on that sheet, and do not install the white spring.

 

Well thanks for that info bliss. I would probably not install a shift or reprogramming kit myself but I want to understand how they work so I can tell a transmission expert exactly what I want.

With the way I drive, cruising around alot at low rpms, it is almost as important for me to improve the 4-3 (sloppy and very soft) and 3-2 as it is the 1-2 and 2-3. For me the stock 1-2 isn't near as bad as the 4-3. I want to get the power to the ground when somebody gets on my tail, and have some fun occaisonally from a standing start.

 

A genuine Shift Kit does NOT block the Accums. A bang plate setup (IE: B&M, et al) does. Get the TransGo Reprogramming Kit but don't use the solid Servo setup. At this point it would be easiest to order the combo kit from Pro Built. Have someone who KNOWS what they are doing install it though and have them follow the instructions, not their "gut" feelings about what is right. Better to pay a little more and have it done right, once than have to redo your whole Trans.

You could do it yourself but I am tending to think more and more that this is not a good idea. If anything goes wrong you will not know it and will be blaming TransGo for your problems.

 

Thanks leo. Does the reprogramming kit improve the 4-3 shift? If so, how?