7 " vs 8 " converter? - Page 2

Adger Smith · 01-25-2010, 09:31 AM

Danny,
I think you are correct in NOT sending the 7" back and messing with it. You have already run your best time with it. No sense having that disappear.
A long time ago Marv was giving me some schooling on converters. One of the many things he said was: I can make a 7" do things an 8" won't do.
There are several reasons that I think that rings true with your combination. You are concerned with 60's... Hanging a heavier, more fluid to pump and larger diameter converter on the back of your engine doesn't seem to be the way to improve 60's. Getting the "Right" configuration of pump, fin angle and stator for your combination is the key. You can get specific results with combinations of stator/pump and blade configurations. You can put a combo together that is loose leaving the line and then is more efficient down track. Then there are ways to make a converter "Pull off the shift" without bogging the engine. We all know there is a lot more to it than just stall or size.
Kenny Ford @ PTC has a real small "stocker" converter that when built right works. I've had dealings with 3 customers that used them. 2 were used in Crate mtrs and one a low HP stocker. I think it is close to a 7 1/2, but a real pancake design.
Takes about a quart less fluid to fill it. I'm not sure what converter Co you are using, but keep in mind some have a hard time getting cores. At one time A-1 was having a hard time getting the parts to build the "N" converters. Good luck with your quest.

01-25-2010, 09:31 AM	#11
Adger Smith VIP Member Join Date: Dec 2001 Location: Texarkana Ark/TX Posts: 2,349 Likes: 435 Liked 677 Times in 261 Posts	Re: 7 " vs 8 " converter? Danny, I think you are correct in NOT sending the 7" back and messing with it. You have already run your best time with it. No sense having that disappear. A long time ago Marv was giving me some schooling on converters. One of the many things he said was: I can make a 7" do things an 8" won't do. There are several reasons that I think that rings true with your combination. You are concerned with 60's... Hanging a heavier, more fluid to pump and larger diameter converter on the back of your engine doesn't seem to be the way to improve 60's. Getting the "Right" configuration of pump, fin angle and stator for your combination is the key. You can get specific results with combinations of stator/pump and blade configurations. You can put a combo together that is loose leaving the line and then is more efficient down track. Then there are ways to make a converter "Pull off the shift" without bogging the engine. We all know there is a lot more to it than just stall or size. Kenny Ford @ PTC has a real small "stocker" converter that when built right works. I've had dealings with 3 customers that used them. 2 were used in Crate mtrs and one a low HP stocker. I think it is close to a 7 1/2, but a real pancake design. Takes about a quart less fluid to fill it. I'm not sure what converter Co you are using, but keep in mind some have a hard time getting cores. At one time A-1 was having a hard time getting the parts to build the "N" converters. Good luck with your quest. __________________ Adger Smith (Former SS)