Douglas Tvrdik

ok i have a 6speed now and im having troubles finding another lsd or info on how to rebuild them so i can keep swaping my lsd into them but i was wanting to know if any companys made a good built auto trans that would hold around 650 hp.

streetzlegend

iTrader: (8)

Yes, look up IPT, they have a rebuild kit for us and also can do the rebuild job.

Nealoc187

iTrader: (23)

there is no LSD available besides the stock HLSD. if you really wanted to you could do something custom, but probably not worth it. not sure what you mean about "info on how to rebuild them"... rebuild procedure is in the FSM. if you mean aftermarket stronger parts to rebuild it WITH, that's another thing entirely (and again not available to my knowledge). again you could customize.

probably better off with an auto for that power level but good luck on that too, that's more power than anyone's ever put through a maxima trans to my knowledge. be sure to post up your results...

george__

iTrader: (1)

No way

Max streets

iTrader: (11)

No theres no way to make a auto tranny to Hold 650hp,ipt can build u one but rated at 4-500hp

Douglas Tvrdik

ok so i just will have to keep finding 6 speeds and get real good at swapping the open diffs for the hlsd diff i have out of my old trans. leve 10 claims they make one to hold 750 but i did sum reading on them n i dont want nada to do with them there just like speed force racing a damn rip off

TurboA32

iTrader: (36)

You can get a twindisk clutch/flywheel from spec and use redline shock proof mixed with mt90 and don't shift like a fool and just hope it holds for a while thats what I would do

Douglas Tvrdik

well it keeps breaking 3 gear shift fork even if im not shifting hard and the fragments from that go and tear up the bearings and syncros and them no more shifty. but all the gears are holding up on them.

i have the jwt single disk clutch thats good to 600ftlb and its holding up good also. the peg leg is whats killing me.

TurboA32

iTrader: (36)

What gear oil are you using?

Nealoc187

iTrader: (23)

breaking a shift fork has nothing to do with the power you're making, but yeah the 3/4 fork in that trans and its big brother the mitsubishi evo MR 6spd trans is a weak point. they break all the time. just ****ty design/mfg.

george__

iTrader: (1)

Find a local speciality transmission shop to build you some kind of reinforced transmission?

Douglas Tvrdik

well i live in oklahoma and there is not really any one around here that messes with them and i cant even find hardly any parts for the 6speeds

Douglas Tvrdik

well im talking to ipt about mabey doing an experimental auto for it.

TurboA32

iTrader: (36)

What if they build you up something and you still have issues

Douglas Tvrdik

then i sell it and build an f body lol

TurboA32

iTrader: (36)

I think your digging too deep here...let's just say that you have 650hp just turn down the power a lil bit. Maybe its your driving style. I've seen posts that people posted that the 6speed tranny is glass but I've never broken a tranny 5 or 6 speed transmission yet... (knock on wood) and I've always used redline gear oil. I never dynoed but im sure I'm putting good power through my tranny

Douglas Tvrdik

thats just it idk if its me doing it or what im starting to wonder if mabey the slave clyinder or master cylinder is to blame. like mabey its not fully pushing the clutch fork in and disingageing the clutch any thoughts

nwell2k3

iTrader: (1)

My brother ran a 4th Gen supercharged Maxima, 14psi and a 100+ shot of nitrous using a Level Ten performance built transmission with a 3200 high stall torque converter. His Level Ten held up to years of street and track racing. The issue was the subframe which started to separate from the firewall. It would have cost $5000 to reinforce the frame Which is why he parted the car and purshased an Evo.

nwell2k3

iTrader: (1)

To answer your question. Go built auto with factory stall rate if your car is a daily driver.

Douglas Tvrdik

im at the point now im just going to try and sell it and just see what some one will give for it im just too deep into it for the trans to be this big of a problem. but i wont sell for less that 10 thats for sure lol .

so prolly wont sell

Roman777NYC

Build yr 6speed tranny... There was a post on forum somewhere where Nissan pulsar gtir has same 6 speed... And ppg makes gears for it... And have a Nissan specialized shop build it... Plus get custom axels... Drivetrainshop ... And a good clutch and flywheel...

Roman777NYC

Here found the post
https://maxima.org/forums/supercharged-turbocharged/385990-aftermarket-gearsets-built-5-speeds-6-speeds-etc.html

Douglas Tvrdik

thats for the 5 speed 3rd and 4th gens and they even break those with less power than i have. im just going to find another 6 speed and get new slave and clutch master clyinder and hope for the best.

Douglas Tvrdik

well i got another 6speed hlsd but im fairly sure i took all the teeth off of 3rd gear this time i was doing some tunning it was running too rich and rolled into third and yea pulled crazy hard then bang and redline so idk what to do now it seems the gears arent going to hold the power so im just going to have to turn it down

aackshun

iTrader: (3)

I have no idea what's going on in here, but I couldn't help myself

Mattx

iTrader: (2)

Auto swap shift kit with tc. If jimme can run 10s with an auto I'd say it's the better choice.

Douglas Tvrdik

well how much will an auto hold with a converter and shift kit i mean his weighs less than mine and prolly makes less power. plus mine makes alot of heat compared to an all motor build due to turbo being directly about transmission.
but if i do auto swap i would want to run more hp than i could with 6speed i mean no sense spending extra money to just tear up diffrent trans if you kno what i mean.

Mattx

iTrader: (2)

I hear ya. I was just throwing it out there. Even though we're turbo granted heat is more of a factor for you cause where yours sits but power is power. If it's a built motor or turbo motor the tranny holding that power so.

James92SE

iTrader: (31)

What? $5k to reinforce the subframe? Sorry, but lawlz.

Reinforcement can be done for just the cost of the steel and welding consumables.

If some shop really quoted you guys an astronomically ridiculous $5k, it's unfortunate that your brother let that scare him aware into the waiting arms of the Evo.

If you already mentioned it I apologize - but just how much power are you making exactly?

Douglas Tvrdik

i dont have an exact power number never made it to dyno before it broke the last trans it should be around 550 to 600 at 14 psi ruffly the procharged 2011 5.0 i raced was making 550 at the wheels and we did 3 60mph runs and i left him every time and thers only about 3 or 400 pounds diffrence between us both 6speeds. i want to get it on the dyno but where i live the closest one is 2 1/2 hours away but engine is good for 600hp limiting factor the HR head bolts but if i got it to hold the 550ish i was planing on pulling heads back off and going with arp l19s and mabey some cams just to give it a more agressive idle but if it wont hold 550 its just not worth it to me. im already too deep in this car as it is.

James92SE

iTrader: (31)

Three or four hundred pound weight difference is astronomical in terms of speed/acceleration difference. That can be up to half a second and five MPH in the quarter mile. I would love to see what kind of power you're putting down. A 550 whp 2011+ GT should be running in the high 10's. If you're faster than that that's really impressive. You would likely need at least 500 hp to run in the 10's. What exactly do you mean by 60 mph runs?

Douglas Tvrdik

3rd gear to 5th gear so 60 to around 120 to 130 i was just trying to see how she was running after i changed a few things. but i was fairly pleased with the results lol