I was told, My car being a 94 LT1..Does not Work well with a high stall, With the stock Heads/Cam...I was told that I should not go over 2600 as long as i have the stock Heads/Cam, because it wouldnt "utilize my sweet spot"...Im looking for guys who know LT1's to help me out here..being that LS1's have MUCH different heads...What do you think?? is this true? Should I stick with a smaller stall?

and BTW...my formula has bolt-ons, 3.73's, Fresh performance build on tranny, free mod

 

I have ran a 3200 Vigi and have had nothing but awesome results, the stall gives my mods some room to grow.

 

I think a 2800-3200 stall would be great for your car. I have a 3000 stall waiting to be installed on my car. You might have problems with the computer with anything over 2800 without some reprograming.

 

I ran my 3000 midwest for about a year before adding the small cam. No issues


I think the problem that your talking about is the high stall OBD1 issue where some cars do not want to shift and actually go into a limp mode - if i'm correct. I think the break off point is 3000-3200 before some (key word SOME) people have had issues. Byan Herter @ PCMForLess has a fix as well as Ion (Madwolf) in case you run into this issue.

FWIW - I wouldn't go lower than a 3000 stall whether your running light bolt-ons or heads/cam.

 

Must be nice to have a non-computer controlled transmission. You don't have the stall wall.

 

i had a tci streetfighter 3000 stall in mine before i swapped to a m6. my car had the odb1 shift problem. i had it programmed twice. i ended up burning drive and overdrive. id go with something under 3000 stall.

 

man you people confuse me

 

I'm strongly considering a TCI streetfighter, already talked to speed INC and i can do an easy exchange with them.....Im pretty sure the tuning wouldnt be a problem..Im just not sure yet if a stall this big will be good for my powerband

 

Must be nice to own an LT1 with freakishly fast bolt on times

 

Take a look at Edge Racing Converters:

http://www.edgeracingconverters.com/

I have a 2800 edge in a 96 B body, stock heads and cam and love it.

All the Impala guys lov'em. Many run 3000-3200 on the street with no problems in drivability. They are very efficient, which makes them great for normal driving.

With your 3.73's, probably best bang for the buck mod that you can do!

John

 

I'm going to assume... (as dangerous as that may be ) that you were told to avoid the high stall converters because of the OBD1 problem that pops up on many cars.. which has nothing to do with the status of your heads & cam choices though. Some folks like Ed wright & PCM4Less have solutions though

 

NO, actually This guy whos tuining my LT1 tells me with the stock heads/cam the stall will not utilize my powerband...

 

i suggested something similar before and got gangraped on the forum by a bunch of high stall groupies. To be honest, my *** is still sore from that session. I will dare say that a stall should be chosen that will keep you in the highest overall torque band, and there is no sense is launching off the line with a stall that is higher than the rpm at which you see your peak torque. The point is to avoid as much of the low rpm bog as you can.

 

So true its not even funny! Im going with a TCI streetfighter, exchange is in progress, made this decision because I foresee a Cam in the very near future

 

Agreed a "real" 3500 is a little bit high... 3000-3200 actually is not. Especially if you realize that about 95% + of converter manufacturers over-rate their off the shelf products. There's way too many variables for any manufacturer to acurately predict what a tc will do in a particular car without getting more a lot info most owners know... so they take a conservative approach.

If you were to tell most tc places you needed a 3500 stall speed it would probably take three or four exchanges to actually get it there.... of course if the car didnt have a trans brake you probably couldnt tell anyway