Allison 5sp: How to make a high HP allison live???
- Thread starter Righteyeblind
- Start date
LMAO yeah i just figured that out!!! Mobile version doesn't show sigs BUT ATLEAST HE KNOWS HOW TO SPELL YAHOO NOW!!!!
Not that you arent capable of building a trans, but would it really not be worth sending it off and see if someone can find what is wrong. Could have a bad case or something
Have you ever paid to ship something the size of a Allison to Alaska or from Alaska? I promise, you can go through a few clutches before you match the shipping price...
He is capable of figuring this out, just asking for any ideas... Hell, I bet we all might learn something.
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It wouldn't be worth it. Way too much money. I like doing stuff myself anyway. I dont think it could have anything wrong with the case or something. I put alto clutches in it in 07 and it was flawless for 80k miles with 600+hp. Then built the motor and turned it up and it turned into a disaster.
I figured I'd ask people since this is the 6th time taking it out this year. Pistons,drum,seals,bearings,clutches, pressure switch all new. Only possibilities I think would be a bad pump or I'm not doing the necessary to hold the power I have available. That's why I started this thread to ask what other have done. It's not like it failed once and I got on here to ask what was wrong. I have gone through it numerous times with no luck.
I haven't yet. I will this weekend when I get back home. I probably should have done this long ago but didn't think it would be an issue since it had always been solid.
That is the best way with switching TCM's out. Running only in tow/haul helps out a lot too.
Swapping TCM's still doesn't guarantee that your TAPS and clutch volumes will be dead on. The only way for it to know clutch volumes and TAPS is to run it with that TCM until it is learned, then don't drive it anymore. If your race TCM has learned bad clutch volumes or taps, then it will just continue to destroy clutches. The 6 speed front assembly does have a slightly larger C1 apply piston, but the C2 apply piston is smaller. I have an extra 6 speed C1/C2 drum out in the shop as I took it out and went back to a modified 5 speed one as it shifts much better for me.
Running in TH drops pressure 100psi as soon as the converter clutch hits. Pump needs to be modified to keep constant prssure.
So are you saying when i run the shit out of my truck tow haul is a good or bad idea? Just trying to learn whats best for my 5 year old Inglewood stage 3
So are you saying when i run the shit out of my truck tow haul is a good or bad idea? Just trying to learn whats best for my 5 year old Inglewood stage 3
You have knockdown pressure in TH.
Interesting. Is this done by removing the check ball in the lockup valve and replacing with a longer spring? Or something more in depth?
So why in TH mode?
Edit: I read Mike's post to say that only in tow haul it will drop 100psi because of the converter locking. That's just how it was worded, to me, and I think others saw it that way too? It didnt make much sense.
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Mike how do you stop that from dropping pressure in tow hual? Im tearing mine down soon as u know an would like to take care of the pressure drop in th as i have the shifting little different and lock up sooner in th