- Joined
- May 28, 2001
Guys I have seen this problem before and here is what I have found.
If you are using a stock motor and 66 or bigger turbo I would recommend a 3400 stall converter. Lock up or non lock is up to you. On stock motors you can use a lock up.
Stage motors there is only 2 ways to go. Trans brake and a 3800 stall Art Carr will work pretty well. You get the best of both worlds, a good 60 foot and decent mph on the top end. For some reason and I cant tell you why, a converter with a higher stall just does not work. I have seen a 8 inch 5000 stall, 9 inch 3500 and a 9 inch 4000 stall get blown right through and they were all non lock converters. Different manufacturers too. After 2 years of trial and error the 3800 stall converter worked the best. I even had the car dynod and with a TH 400 I calced the slippage on the converter at 12%. 1 to 1 ratio at the trans, rpms on the motor and rpms at the wheel.
I have seen a non lock 3800 work without a trans brake pretty well but launching is always a problem. The 60 foots are about a tenth slower as well.
And I dont care who it is or what they say. Getting the right converter is still a trial and tear it out, send it back, guess at the stall speed and send it back to me affair. No one can get it right and I think that is just the nature of the beast.
If you are using a stock motor and 66 or bigger turbo I would recommend a 3400 stall converter. Lock up or non lock is up to you. On stock motors you can use a lock up.
Stage motors there is only 2 ways to go. Trans brake and a 3800 stall Art Carr will work pretty well. You get the best of both worlds, a good 60 foot and decent mph on the top end. For some reason and I cant tell you why, a converter with a higher stall just does not work. I have seen a 8 inch 5000 stall, 9 inch 3500 and a 9 inch 4000 stall get blown right through and they were all non lock converters. Different manufacturers too. After 2 years of trial and error the 3800 stall converter worked the best. I even had the car dynod and with a TH 400 I calced the slippage on the converter at 12%. 1 to 1 ratio at the trans, rpms on the motor and rpms at the wheel.
I have seen a non lock 3800 work without a trans brake pretty well but launching is always a problem. The 60 foots are about a tenth slower as well.
And I dont care who it is or what they say. Getting the right converter is still a trial and tear it out, send it back, guess at the stall speed and send it back to me affair. No one can get it right and I think that is just the nature of the beast.
