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Old 05-31-2008, 07:54 PM
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torque converter problem??I think

Hi
I just got my rod running and have a problem. Its a 2500 lb car with 350/350 isky 280 mega cam (very lumpy,sounds good) holley 650 DP, hot ignition rebuilt tranny with shift kit .The engine likes to idle around 1000 rpm I have a 11" 2500 stall converter(supposed to be anyway) when I put the car in gear the tach falls to around 600 rpm and the engine stalls.It is acting like it has a stock converter. the only way I can run it is to up the idle to 1200 rpm and then when I put it in gear I have to have my whole leg into the brake or it takes off. I took it to a cruise last nite and probably wore out my brakes riding around looking for a parking spot!The only thing I can figure is that I got took on the converter???I've always had stick shifts and am not too knowagable about automatics. Does converters change after running a while or am I screwed,or what else could be causing this problem. Worked on it all winter and everything seems fine except for this one problem.What do U think?
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Old 05-31-2008, 08:18 PM
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It don't seem like it's a 2500 stall. Put it in gear,Then do as if you are going to power brake it.Watch the rpm's to see if you can hold the car at 2500,Before it start's to brake the tires.

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Old 05-31-2008, 08:32 PM
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Ok,I'll try that tomorrow.It will be a job, in this model T not much room ,brake and gas are real close together and both on right of steering column.I thought at 1000 rpm idle when I put it in gear I would be able to hold the car (like at a redlite) with normal amount of brake pressure but not so. I have all new brake-setup but not power,and 6to1 pedal ratio
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Old 05-31-2008, 08:41 PM
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Your right.It should hold the car.It will also start to move if you take your foot of.But if you get on it,You will feel it good at 2500.Now on the other hand,There is a big difference,If you had a 3500 stall, You will feel it alot more when you go that big. I don't know a better way to tell you about a stall.Maybe some of the tranny guy's can help me out here.
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Old 06-01-2008, 02:22 PM
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one rule that applies here is ; ' when weight goes down , stall speed rating must go up'

with that camshaft and the light weight I would suggest a 3500 rpm stall converter.

the converter you have now may be over rated or not built properly... I cant tell from here.


I am curious if you have weighed the car? Sometimes these cars are a bit lighter than a person would think.

as an example : In a glass T-bucket with a bone stock v-8 chevy , I install a 2500 rpm stall converter. And sometimes they will push a good deal against the brakes.



you may have a timing - carb adjustment problem there too... I imagine you have looked at the simple stuff so far.
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Old 06-01-2008, 08:46 PM
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I weighed the car last year with a 4cyl and 5 speed .It weighed 2480 so I would guess its probably around 2600 now.I am still experamenting with the carb and timing have the timing at 12* right now I have people telling me thats too much and others telling me 14 or 16 would be better??? What should total advance be? my dist is not vacumn and neither is the carb
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