99ccz28

iTrader: (6)

i have a vig3600 stall. when it locks up at about 35 and if im crusing at likt 40 and take my foot off the gas and off the brake it will buck pretty bad. but if i have my foot on the gas or brake it wont do it. what could be the problem? i have a tune for it, tsp mail tune so im guessing they did it right. but i had a fuddle before the vig and it did the same thing. thanks for the help.

WS6Drop

iTrader: (10)

Mine does the same thing, I believe its the tune for your cam.

99Hawk262

iTrader: (19)

Another one here.....I was told it was tuning. I haven't had it tuned yet but I still wonder what causes it.

performabuilt

iTrader: (25)

lockup at very low speeds with large cams and you at times will get a bucking jerking feeling , kinda a lope of the cam feeling , tipping into the gas or braking at low speeds generally unlocks the converter.

99Hawk262

iTrader: (19)

I have a stock cam.....my tuner said he's got the fix for it....I'll have to ask him what it is.

performabuilt

iTrader: (25)

well thats when i have seen that occur and of course with a low speed miss to ,
so was and idea ,

Sean Collins

Does it feel like you have a trailer hitch behind the car ?? the phenomenon called trailer hitching in the mustang world is often cuased by to low of a lock up speed with a big cam either that or very poor tunning.

99ccz28

iTrader: (6)

i dont have a big cam though...but at least im not the only one with this problem...my cam is only a 224 but with a 112 lsa maybe that has something to do with it...will that bucking hurt anything?? thanks

Gun5

iTrader: (37)

man my stall isnt tuned in so it never locks up gas mileagee

BlackHawk T/A

iTrader: (3)

TCC Lockup is called for in the stock tune...remember what it was like driving when stock? It locked up fine.

MICAH HERRON

iTrader: (3)

Mine does it too, but really depends on the RPM I am at. I like to call it CAM lag, but what you all have mentioned is similiar to my ordeal. I am going to replace my current cam, which is a 232/236 on a 113 LSA to a 224/224 ona 114 LSA. I am pretty certain that this is going to help when the tuner gets his hands on it, because my car has never liked the cam I have in it now. Tomorrow, it is coming out and the new one is going in.

Good luck guys with your issues too.

Joel_SS

iTrader: (8)

The bucking can be fixed with a tune.. Do a search in the PCM forum I am sure you will find numerous threads about it.. M6 guys suffer the same prblems

Gun5

iTrader: (37)

i'v driven 2.73 cars and such without a converter but my car had a 3000 when i got it and now has a 3700 i cant tell between locked up and unlocked.. i have no bucking at all either

DrkPhx

iTrader: (15)

It's all in the tune. Usually worse with bigger stalls. My old Yank Y3200 worked like stock, but when I stepped up to a TCI 3800, then a Yank PT4000 it required extensive tuning.