Stall Estimate??

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Stall Estimate?? Empty Stall Estimate??

Post  billandlori on November 26th 2015, 8:54 pm

Hey folks,

I have a converter that I bought that is 10.5". I'm not sure what the stall speed is and was wondering if anyone had an estimate? I paid a whopping $50 for it so I couldn't turn it down lol!!!

The stock 12.5" stalled around 1200rpm.

Its behind a 500ish hp 466, C6, in an 80 Futura.

Bill
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Post  ultimatelenny on December 1st 2015, 9:25 am

If it is a 10.5 then it was probably built using the 265 Northstar core. They only come with 2 type of pump covers, tight and tighter, and depending on the stator, which is a n 18 blade piece, they are usually a very efficient converter. I would guess the approx. stall to be around 2200-2500 in the car. If it has a modified after market stator with a better window design and some blading done on the pump cover it will stall higher, how much? Tough to say , too many variables. Are there any stampings on the converter anywhere?
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Post  billandlori on December 1st 2015, 5:51 pm

ultimatelenny wrote:If it is a 10.5 then it was probably built using the 265 Northstar core. They only come with 2 type of pump covers, tight and tighter, and depending on the stator, which is a n 18 blade piece, they are usually a very efficient converter. I would guess the approx. stall to be around 2200-2500 in the car. If it has a modified after market stator with a better window design and some blading done on the pump cover it will stall higher, how much? Tough to say , too many variables. Are there any stampings on the converter anywhere?

Thanks for the reply Lenny!

I haven't seen any stampings, its been painted a couple times. It looks like it was yellow and then black over that.

I guess I'll just have to try it and see lol!! That is the stall range I am looking for. If not, I'll send it to you for a tune up!!

Bill


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Post  ultimatelenny on December 2nd 2015, 9:04 am

No problem , keep me posted with your results.
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Post  billandlori on December 5th 2015, 5:12 pm

I found a number on the convertor: 23199578

No other markings on the thing.

Bill
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Post  ultimatelenny on December 7th 2015, 8:52 am

No idea what they are , going to have to give it a try
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Post  billandlori on September 25th 2016, 8:50 pm

Man, you nailed it Lenny!! it stalls right at 2100-2200 rpm.

I've never ran this engine with a higher stall converter and it likes it!! Seems to pull better and is much less prone to detonation.

Thanks again for the help!!

Bill
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Post  ultimatelenny on September 26th 2016, 7:43 am

You are very welcome sir
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Post  richter69 on September 26th 2016, 5:14 pm

Hey Lenny, whats my stall????
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Post  billandlori on September 26th 2016, 6:01 pm

richter69 wrote:Hey Lenny, whats my stall????

Its a N/S (no stall), like the N/T on your window!! Top secret stuff right there....

Bill
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