Stall Estimate??

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

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?

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

No problem , keep me posted with your results.

I found a number on the convertor: 23199578

No other markings on the thing.

Bill

No idea what they are , going to have to give it a try

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

You are very welcome sir

Hey Lenny, whats my stall????

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