How much HP can a stock Allison handle?
Mar 12, 2010 · As far as the 5 speed allison which is what the 2005 has, about 90 hp over stock is the max safe limit. Will your tranny hold more???probably but for how long, who knows? If you want to keep your truck dependable without having to rebuild the tranny, keep it to about 90 hp over stock (that is about 160-180 lb/ft of torque over stock)
How much power can an Allison Transmission hold?
Sep 20, 2012 · Once you limp the Allison it will be easier to do it more often. Anything over 80 HP you will need to beef up the tranny. With HP numbers that high I can bet they used a Suncoast modded tranny. A stock Allison WILL NOT handle 550 HP for any lenght of time.
What happens if you drive an Allison Transmission in limp mode?
Jul 20, 2010 · No chance , it takes better clutch's along with the pressure mods to hold 550 for any length of time , the Suncoast stage 3 is a good kit and would work great for that power level , that kit along with a few other simple mods can hold well over 600 hp , but anything above 600 it will shorten its life a fair bit its best to step up another level at that point.
How does the TCC work in an Allison automatic transmission?
News; Rides. Diesel Trucks. Ford; Ram
How much HP can a 10 speed Allison transmission handle?
Allison 10L1000 10 Speed Automatic Transmission SpecsTransmission:General Motors Allison 10L1000Max PTO Power:43 HP max, 13 GPM maxPTO Speed Range:700 - 3,100 rpm9 more rows
How much torque can a stock Allison 1000 handle?
Initially the Allison 1000 was a 5 speed transmission, rated to handle up to 620 lb·ft (841 N·m) of torque. This rating has increased as the transmission was updated several times, to stand at 765 lb-ft(1037 N·m) by 2011 in GM truck applications.
How much HP can a stock Duramax transmission handle?
Registered. The LMM can handle about 130 RWHP tune on the stock transmission.Jun 17, 2014
How much HP can a Allison 3000 handle?
Allison Transmission's 3000 Series is designed for medium-duty commercial vehicles and is engineered to adapt and operate efficiently in a variety of applications. The 3000 Series includes close or wide ratio gearing and a maximum rating of 336 kW (450 hp).
How much HP can a stock Allison 1000 6 speed handle?
425 to 450-rwhpAs you've probably deduced up to this point, the stock Allison will handle roughly 350 to 400-rwhp in five-speed form and 425 to 450-rwhp in six-speed trim. However, if you push things past that point the clutches will eventually slip and bring on the Allison's notorious “limp mode” condition (i.e. limp home mode).Dec 2, 2017
Can you put a 6 speed Allison in a LB7?
The Sun Coast Allison 5-6 Speed Conversion for your 2001-2004 GM 6.6L Duramax LB7 converts your 5-Speed Allison A1000 Transmission into a 6-Speed like the later models. With the conversion, you can drop 325 engine rpm @ 75 mph with 3.73 gears.
How much boost can a stock Duramax handle?
Simply put, it can handle plenty of abuse (40 psi of boost and high drive).Jul 11, 2018
How much horsepower can you get out of a 6.6 Duramax?
6.6L L5P Features This next-generation redesign offers more horsepower and torque than ever — an SAE-certified 445 horsepower (332 kW) and net 910 lb. -ft. (1,234 Nm) — to enable easier, more confident hauling and trailering.
How much HP can a 2.8 Duramax handle?
ENGINE DIFFERENCES: 2.5L I4. 3.6L V6, GM-EXCLUSIVE DURAMAX 2.8L TURBO-DIESELEngine2.5L I42.8L Duramax® Turbo-DieselHorsepower200 HP181 HPTorque191 lb.-ft.369 lb.-ft.MPG20 city/26 highway30 highwayPayload Capacity1,710 lbs.1,506 lbs.1 more row
How can you tell the difference between Allison 3000 and 4000?
They are different in size and power handling capacity. The 3000 weighs about 530 lbs and the 4000 weighs about 830 lbs. The 3000 holds about 26 qts of fluid and the 4000 holds about 40 qts. The 3000 has a horsepower max of 450 and the 4000 has a horsepower max of 650.Sep 28, 2011
How much HP can a stock L5P transmission handle?
770rwhpThe Stock Injection Pump Can Support 770rwhp! Speaking of the folks at Wehrli Custom Fabrication, not only are they building fixed geometry turbo systems for the L5P, they're campaigning the quickest and most powerful version in the country right now.Jun 19, 2020
How many miles will an Allison Transmission last?
With no programmer and standard maintenance you are looking at 200K-400K miles. Not to bad. Or more if taken care of like Toypuller said switch it to a TES-295 rated synthetic fluid and change the external filter regularly and it will last forever.May 12, 2009
What is Allison LCT 1000?
Without question, the Allison LCT 1000 brought medium-duty robustness to GM’s heavy-duty truck line , along with adaptive learning, shift energy management and some of the burliest components you’ll find inside an automatic transmission. To say the Allison revolutionized the heavy-duty pickup segment would be an understatement. It was also a sign of things to come, as a call for increased power ratings, better fuel efficiency and more stringent emissions standards were on the horizon and would have to be met with stronger, smarter transmissions.
What is a limp mode on an Allison?
Many diesel enthusiasts and even layman have heard the term limp mode associated with the Allison transmission. But, what exactly is it? It’s the electronic side of the transmission sensing excessive slipping and placing the unit in fail-safe mode, where only one forward gear is available. As you’ve probably deduced up to this point, the stock Allison will handle roughly 350 to 400-rwhp in five-speed form and 425 to 450-rwhp in six-speed trim. However, if you push things past that point the clutches will eventually slip and bring on the Allison’s notorious “limp mode” condition (i.e. limp home mode). During limp mode, maximum line pressure is commanded, no voltage is sent to the transmission and you’re stuck in Third gear. Just as its technical name implies, it allows you to limp the truck home. While many owners continue to drive their trucks after a limp mode scenario has occurred, subsequent limps will eventually ruin the transmission. If you limp yours, we suggest preparing for a performance rebuild or backing down the programmer.
Can you leave your Duramax stock?
However, most Duramax/Allison owners don’t leave their trucks stock —and therein lies the problem.
What is the weakest link in the Duramax LB7?
The weakest link in the LB7 Duramax’s rotating assembly is its connecting rods. Like all Duramax engines, the rods are made from forged steel and feature a cracked cap design. However, less material exists in the bottom of the beam area when compared to ‘06-‘10 engines. The lack of meat in this critical area helps explain why the rods are prone to bending at lower horsepower and torque levels, as well as why LB7 rods weigh less than the units you’ll find in LBZ and LMM models (1,155 grams vs. 1,173 grams).
What type of wrist pin is used on Mahle 16.5?
The 16.5:1 Mahle Motorsport cast-aluminum replacement pistons require an LB7 style wrist pin. This is ideal, being that one of the major weak points in the factory LBZ/LMM piston is thought to be its lack of material in the wrist pin area due to the use of wrist pin bushings.
Is the LLY Duramax the same as the LB7?
With the LLY Duramax sharing the same connecting rod as the LB7, it’s no surprise that this component is also the weakest link in the second generation of the Duramax. And, like the LB7, compression once again checks in at 17.5:1, meaning higher peak cylinder pressure (i.e. torque) beating down on it. But the LLY introduces one more ingredient to the weak connecting rod recipe.