I want to go up and was wondering if anyone has gone up and if so what
kind of 60' gains did you see?

Thanks.

 

I picked up at least 2 tenths going from a Yank 4000 to a Yank PT4400.

 

2 tenths in the 1/4 not 2 tenths off your 60' right?

Man even 2 tenths in the 1/4 would be well worth the $
for a restall.

 

Is there any difference from 4200 to 4400 in differences in the quarter mile.

 

I wouldn't expect more than about .1 between the two stall speeds if both converters are from the same company and same product line or design.

 

I'd say half a tenth would be more realistic. Two tenths sounds like something was off for one of the runs.

 

what can i expect going from midwest 3400/2.0 to yank PT4200? what aboot PT4400?

 

Yea, but there is quite a lot of difference in the two converters. Well, that is if the 4000 was a basic Yank verter converted to a 4000 stall.

Or was that TP 4000 upped to a 4400?

 

does anyone have documentation of anything?
shouldnt, at the least, Yank have a rough idea of approximate gains based on the typical bolt-on f-body?

im still trying to figure out SS or PT,
4000 or 4200.
whats the difference in looseness?
whats the difference in performance?

 

SS=not too loose, pretty streetable, maybe hits a little harder out of the hole than the PT, lower shift extension, good street/strip converter.

PT=loose, streetable but takes getting used to, hits hard out of the hole but maybe a little less than the SS, very high shift extension, good for someone that spends alot of time at the track.