Technical > Dan Dishon's Transmission Den

another converter question

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Mrs Esterhouse:
How important are engine dyno sheets to properly spec a converter?

dusterdave173:
knowing max torque and what RPM it happens at is very helpful but---there are so many other factors like max RPM you will turn etc  I really like Kenny at PTC in Alabama  That staff has about a hundred years of combined experience--Great units for less than many others. Since they usually all buy the internal parts from the same place it comes down to that experience--I know there are "super" converter builders that make some internal parts in house etc but for a very decent unit for less than others I really like PTC

dreracecar:
Never had my engine on a dyno and won a butt-load of races, same converter for both 7.60 and 7.0. Its only truly critical for pro level Comp elim classes and certain door cars

Mrs Esterhouse:
Thank you.

bikeguy307:
I disagree, the more info you give the converter people the better the converter with work for you. Dyno sheets are a good place to start, but real world numbers with a know converter can be very helpful. Shift points, cam specs, CID, launch rpm, gear ratio, and trans type all make a difference in building a converter to suit your application.

If you make more HP than you need and are slowing down to an Index, then the converter really isn't as critical, but if you are trying to utilize what you have to get to an Index, or for good repeatability bracket racing, you need a converter spec built to your car.

Hope This Helps, Dan 

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