like said in the title, i just installed my 4000 stall and a ms4 cam. i will be getting the tune mon. or tues, whenever they can fit me in. but my question is, when i get my car tuned, what is a good speed and what gears should i have my converter lock-up? also i have heard that vigilante's always flash a lot higher than they say, do any of you know if this is true or not?

 

any input would really help guys!

 

From what I've seen, the Vig converters always seem to be higher than their rated stall; which is not a bad thing. I assume you're talking about 4th gear lock up. You will have to raise it higher than stock. How much depends on your exact setup, converter and driving style. The optimum lockup point for my previous converter; Yank PT4000 was at 51 mph (37% TPS). It didn't like to lock any lower than that. My new Circle D 5C (5000 stall) is perfectly happy with the same exact lock up.

 

well my buddy has a yank ss4000 and his locks up at 35mph in 3rd gear. ive never had a converter before but was told that when i get it tuned they will put in whatever lock up speed i want. i feel like im missing out on something now.

 

What does it lock up in 4th gear?

 

honestly i cant remember, i want to say anywhere from 45-50.