What's the shift extension on a Yank PT4400?
#1
What's the shift extension on a Yank PT4400?
Im trying to figure out where my rpms will fall after shifts so that I can have a rough idea what rpm range I need a cam to make its most power. Does shift extension vary on setup/power? If so, is the vary a lot? Those running this converter or have, please post up your shift extension you got out of it. Thanks.
#3
Wow, so when the car shifts, it doesnt fall under 6100 rpms? Why is it so much more than what its rated for? (5700) Where did you get that rating anyway? I'd like to know what the PT4400 is rated at. Also, how much power are you putting down. Lastly,
Why is that a problem? Isnt the higher the shift extension the better?
I've seen someone else have this problem w/ a PT4200 they just received. Just FYI.
#6
Anyone else running this converter who would like to share their shift extension? It seems to vary from one application to the other. But from what Ive been told, Yank makes their converters to the specs of the car its going in. So if their were to make one for a completely stock 346 cu. in. and then one for a 427 cu. in., they would be slightly different. This is what Ive been told. I dont have the converter in the car just yet, but hopefully soon. Just trying to get a rough estimate so that I can start looking for the right cam. Thanks.
#7
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My PT4xxx converter had a shift extension of 6100RPM. As it turns out my PT4xxx was really a 4800-5000.
I think it is really unlikely that Yank can build a converter that will stall to an exact RPM. It will be within a 100-200 RPM range.
Good luck
I think it is really unlikely that Yank can build a converter that will stall to an exact RPM. It will be within a 100-200 RPM range.
Good luck
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#8
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Originally Posted by JNorris
My PT4xxx converter had a shift extension of 6100RPM. As it turns out my PT4xxx was really a 4800-5000.
I think it is really unlikely that Yank can build a converter that will stall to an exact RPM. It will be within a 100-200 RPM range.
Good luck
I think it is really unlikely that Yank can build a converter that will stall to an exact RPM. It will be within a 100-200 RPM range.
Good luck
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I was one of those people too. I sent it back after a week in my car, told Dave what was up, its been repaired and sent back, for free. I had the luxury of a friends ST3500 sitting in his shop while the PT4200 was gone, put it in and ran #s in sig. If the PTs not right I may have to keep the ST3500.
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Originally Posted by BlackBeaSSt
Can higher stall and shift extension than what its rated at be a bad thing?