TTS transmission dead!!

[SteveFord]

The electronics is a big problem because Allison uses it in place of acumalators which regulate shift quality using pedal position. Next problem is using 2 pressure regulators at the same time. One pulses a clutch on ( slip it on for comfort ) and the other pulses the off going clutch ( slips it off ) at the same time. What's the chances of getting this timing correct on a towing, bulky, not made for racing trans trying to run big hp and asked to shift fast in a 7K truck? Not promissing is it?
The internals are all wrong in the Alli as are the gear ratios and it has too many gears. The trans is too heavy for racing and the huge size of the internals do not help with high performance. remember GM did not install the Alli for you to race. They installed it to handle just about any kind of load or overload yo can think of when used as it was intended. The Allison will in most cases beat the shit out of any trans 5 to 1, mileage wise, on the planet when used as intended.

Thanks for the info!

 

[McRat]

So 11's it is.

Just need an LBZ or LMM who is feeling lucky and has a stock trans.

Heck, might be more fun to push an LB7 or LLY into the 11's on a stock trans. Best I could muster was 13.90, but that was 4 years ago.

 

[Duramax_JP]

So 11's it is.

Just need an LBZ or LMM who is feeling lucky and has a stock trans.

Heck, might be more fun to push an LB7 or LLY into the 11's on a stock trans. Best I could muster was 13.90, but that was 4 years ago.

Im willing to provide a truck if you provide the parts needed to get in the 11's

 

[Big Block 88]

Pat I got my old LBZ you could use as a test bed but the tranny has limped a fe dozen times and the fluid has a slght black haze to it:angel:

 

[racinmike77]

disable limp and you can go real fast for a pass or two lol

 

[WolfLMM]

I doubt if that will ever happen.

 

[LBZ]

I'm sure 11's are possible in an RC LBZ with a stock trans. It's alot lighter so it will be easier on the trans.

As far as Ford's with stock trannies, I saw one run a 12.4 on a stock tranny for one pass and then he broke something inside leaving the track. It is posible, you may get them to run once or twice, but that's about all IMO. I'm sure you can get an ally to last longer than that. Maybe not the 5 speed but definetly a 6 speed.