PT4400 question?
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PT4400 question? I have the Yank PT4400 converter when I stab the gas the converter flashes to 6000 rpms and once it shifts at 6700 it goes down to 6000 and climbs from there. The car pulls hard, but everyone that I have talked to has told me that it is not suppose to do that and that the car would pull harder if it did not. Is the converter suppose to do that or is something wrong.
Are you talking about punching it from a roll or from a dig? From a roll, mine will flash close to 6000, but I can't honestly say it flashes right to 6000. I've never paid close enough attention.
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I think that it pulls really hard, but my tuner and one of the guys at Thunder racing were telling me that it is flashing almost at peak power and that it is too high. Also when I tried to get my car dyno'd the guy who was doing the dyno told me that it was acting really weird like a 6000 stall.
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mine goes to 6000 on the launch and shifts at 6900,then drops to 6100 back up to 6900.
Yank told me the shift extension shoud be around 800-1000 on this converter.The more power, the higher its gonna flash.You might want to have it tightened up a little. Give yank a call.
Yank told me the shift extension shoud be around 800-1000 on this converter.The more power, the higher its gonna flash.You might want to have it tightened up a little. Give yank a call.
As previously stated,....COMPLETELY normal. My car has a 4000 stall and flashes at 5200rpms,....also have a MS3 cam. Having a 4400 Stall does not mean you will punch it and hit 4400rpms instantly,.......if you were wanting that you should've gotten a 3500 like most do.
Maybe you should have choose a converter that better fits your set up if you did not want it to flash so high why did you buy a PT4400?
It should come off the line like a monster, and give it momentum to carry it up top.
It should come off the line like a monster, and give it momentum to carry it up top.
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The car does come off the line like a monster, and as far as getting a converter that fits my set up, the 4400 was recommended to me by Thunder racing because I am using their T rex cam.
There are a lot of things that affect stall speed and efficiency. HP, weight & gearing are just a few.
And telling him he should shift at 7000 is not correct. He should be shifting 350-400 rpms past peak power depending on how fast it falls off, but it shouldn't be much with the shift extension of a PT4400. If I listened to what people told me to shift my car at, I wouldn't be going as fast as I am. Everyone told me to shift my stock internal car at 5900 because it would fall off before that, but it peaks at 6128 and I shift it at 6450. There is a reason why I am one of the fastest stock internal cars in the country...
And telling him he should shift at 7000 is not correct. He should be shifting 350-400 rpms past peak power depending on how fast it falls off, but it shouldn't be much with the shift extension of a PT4400. If I listened to what people told me to shift my car at, I wouldn't be going as fast as I am. Everyone told me to shift my stock internal car at 5900 because it would fall off before that, but it peaks at 6128 and I shift it at 6450. There is a reason why I am one of the fastest stock internal cars in the country...
Ok fair enough,...so his T-rex cam'd car peaks at 6300 versus my MS3 peaking at 6700? I understand you dont know the details of his mods or mine, but I was under the impression the Trex cam peaked out a little higher than 6300 no?
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From: SoCal