Which torque converter , stall speed

A

Anonymous

Guest
I think it is a common problem... Which converter should i use or better said which stall speed or what factors are involved on the stall speed ?
Car is a 1979 Oldsmobile with a 350 chevy out of a corvette with a weiand open plenum intake and Holley 750cfm (3310) vakuum secondaries , camel hump heads and maybe other cam , but do not know exactly, hooker headers , 2,25 inch dual exhausts , about 280 hp at the wheels , weight should be as stock , but no a/c and Weld Draglites , so maybe a little lighter.
Trans is a th350 with shiftkit and a 2000stall converter(on break , on acceleration 2100 to 2200 , depending of trans temperature, rear is standard Olds , i think it has 2,29 gears , but will change to 3.3? or 3.73 soon.
Car goes really good over 3000 rpms up to 6000rpms , i think because of the carb - intake - rear combination...
So , i could get 2 differnt converters :
2500 to 3000
3000 to 3500
This is what they say ist the rpm stall range. As i know , on a smallblock in a light car they may end up at 2500to2600 and the second 3000to3100...maybe !?
I think a 3000 stall would be good for the car... or ???
What do you think ? What have you in your cars ?
Thank you for any ideas , help , informations !!!!!!!

I have some videos on youtube under : The79OldsCutlass

Greets , Carsten
 

lilbowtie

Pro Stocker
Oct 5, 2004
1,736
0
0
Canton Mi.
One of your factors in deciding what convertor to use is what camshaft you are running !! If it's a stock cam your current convertor is in the ball park - the rear gear is killing you and the open plenum w/750 isn't helping -thank goodness is a vac secondary and 3000 is probably when it starts coming in. Start with the rear end and see where it takes you.
 

malibu795

Pro Stocker
Apr 17, 2005
1,496
4
38
spgfd ohio
x2 on gear swap
 

grizwald

Top Fueler
Feb 21, 2008
3,300
0
36
Ontario, Canada
i'd pick the brand of converter you want, then call that company with all your specs (including detailed cam specs) and let them tell you which one of their converters would work best for you.
 

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