Transmission Questions for 4t45e

[sorrowfulkiller]

I was just wondering, does anyone know how much torque a 4t45e tranny can handle?

Also, does anyone know where I could get some cheap drilled brake rotors?

[Redog]

I think it's rated to 200 lbs, but somebody said 300 I believe

Don't go cheap on brakes! I think www.summitracing.com (http://www.aleromod.com/forums/www.summitracing.com) has drilled rotors for the Alero, but I know www.tirerack.com (http://www.aleromod.com/forums/www.tirerack.com) and www.pfyc.com (http://www.aleromod.com/forums/www.pfyc.com) both have Powerslot II's for the front. They are slotted and dimpled

[Gr1m]

I was just wondering, does anyone know how much torque a 4t45e tranny can handle?

wait for BJ to blow his and then find out ;)

[sorrowfulkiller]

well I've heard that the 4t45e can handle 205 lb/ft torque.... but I've also heard that they are good til about 300 without modifications.


I see summit racing has drilled and slotted rotors for really cheap O_o I'm just wondering, do you think they would be worth it?

$120 for front and $100 for rear!


But then again anything would be better than my warped rotors that I have now >_>

[sorrowfulkiller]

wait for BJ to blow his and then find out ;)
:lol: Good Response

[kwhauck]

my car dynoed 281whp at altitude and it is on it's third tranny so but then again the one i have right now has been abused by three different boosted cars and it is still holding tight and strong.......

[sorrowfulkiller]

I'm thinking I should atleast use an overhaul kit then?

Where can I find LSD's?

[burg03]

anyone with anything over 300hp

[alerored04]

if you have ?'s about the 4t45e TEjohnson over on GAgt.com would be the best guy to ask, he is pushing our tranny pretty far and getting it to hold up. Im sure kwhauk has some info on that. A buddy of mine has a turbo monty with a 4t40 iirc, he is making around 320hp and like 260tq, he is on his 3rd tranny, but he isnt nice to them at all either. Those numbers are my best recollection, im not sure of exacts, but i know he is on tranny #3. Its germ for you guys that have been here for a while. As for the rotors check r1concepts on ebay. I have a full set of 4 of their rotors and love em, cant remeber what i paid but i know i was happy with the price.

[kwhauck]

TEjohnson is a good source of knowledge.......so are a lot of the other guys i just think for long term driveabililty and upgrades options that the 65HD swap is the best option........

[sorrowfulkiller]

I've been told the 65HD doesn't fit >_> how much torque can that handle?

[kwhauck]

it will fit you just need a few fabricating with brackets and what not.......as far as what it can handle.........with upgrades more available than the 45, as much torque as you want........gm had a build book with part numbers for the 1200hp race cobalt that has a 65 tranny, or look at ZZP they are on the brink of 8 sec 1/4s with their 65 tranny

[sorrowfulkiller]

Holy Shit! Maybe in the future after I re-do the entire exhaust I may drop a 65hd in then! O_o

Right now though I only have a stock alero, but soon I'll have $400-$500 leftover every paycheck... so it won't take me long to actually get some shit installed.