from what ive read the auto cant handle more then 200kw(maybe 220kw) flywheel from the single turbo, and dosnt seem that you can stregthen the auto. Is there another auto from a different mitsubishi model that is stronger and would fit the magna. Any model at all. If not then can no one at all in australia make a stronger box or make stronger parts, is it impossible, what about in the US do they have the same auto box has anyone over there made stronger boxes.

I cant believe mitsubishi make such **** weak auto's. There is a company producing a turbo V6 VT commodore single turbo that is auto and i think they have around the 350 to 400 rwhp doing low 12's. And im pretty sure this is a stock auto trans, shows how weak mitsubishi auto trans are.

i cannot beeeelieve it, disgraceful, ridiculous
your JOKING

Any comments, feedback or corrections much appreciated

i cannot beeeelieve it, disgraceful, ridiculous
your JOKING

Any comments, feedback or corrections much appreciated
I think your supposition of the mitsubishi transmission is somewhat over the top. An auto transmission that can handle 200 to 220kw is not a **** weak auto.

Perhaps a crappodore auto can handle more power, but then again its probably built like a brick **** house and has been proven to perform in a similar fashion. :roll: Most days, companies are building auto transmissions to be smooth and refined, much like the magna auto's. If a company can do this and make them durable and handle 200kw, I doubt very much you could describe that as disgraceful and ridiculous. At your behest, my comments and feedback for yourself, would be to get a grip on reality.

I would also suggest that if you plan on converting a magna to run more than 220kw through the front wheels, you would either want to convert to a manual or have the auto box taken out and seen to by an engineer who could probably design strengthened components to fit into the box in order to handle this sort of power. Also, whilst your at it, you may want to consult an electronics engineer to design a custom auto ECU to operate in conjunction to your new engine ECU. Could be a very expensive operation I would be thinking. :neutral:

what you've read about the auto box it all stemming from RPW's Dave (aka mitsiman)... he has his doubts (due to many years experience) about the auto but so far no one has nuked one!! at least on this forum... same goes for the TE-TF manuals.... supposedly the 3.5 didnt come in manual before TH because the gearbox wasn't up to it... but enough people here have their 3.0 TE-TF's running just as much power/torque as a stock 3.5! and they're handling it fine!! hell even booya's is still going (as far as i know!)

Also FORD say they're XR6 transmissions won't do past about 280kW but its been well proven by several ppl with the AirPowerSystems upgrades that they'll handle well over that.... I've read about the fastest XR6T's that still have stock gear boxes!!!

IMO, if you can afford the turbo... i'd do it!! treat it with respect (don't drive like a learner who'se drunk and bunny hops everywhere, ie putting stress on Drivetrain) and she should be apples!

The biggest killer with auto transmissions is heat. IF your going to be boosting your magna it will be putting more torque and power through the auto which will heat it up more. To combat this you'll need to fit a transmission oil cooler which is dead basic and won't cost you anymore than 200 for a good one with a large core.

I would suggest design a turbo kit that delivers power smoothly (linearly) and doesn't hit like a sledgehammer. Install a decent sized tranny cooler (don't go too big) and install a transmission temp gauge so you can keep an eye on things and know when to back off.

I think if you think it through to design your system properly, take the neccessary precautions as listed above to extend the life of your turbo I can't see why it can't live for its designed lifetime. Just remember revving it in N and smalling it to D on boost will never help its lifespan :P Best of luck mate, if your going to do a turbo conversion please keep us up to date!

Blake

yeah man i think your jumping the gun on trashing the magnas box, after all, from what ive read all i see everywhere about autos is people getting them strengthened, so really its to be forseen with any auto car your tuning, and im talking not about mitsu's here but lots of cars, from mx5's to crapodores, i say if your throw a turbo onto your car, why dont you test your trans to give us all a guideline on what it can take? sounds to me like a good idea.

yeah man i think your jumping the gun on trashing the magnas box, after all, from what ive read all i see everywhere about autos is people getting them strengthened, so really its to be forseen with any auto car your tuning, and im talking not about mitsu's here but lots of cars, from mx5's to crapodores, i say if your throw a turbo onto your car, why dont you test your trans to give us all a guideline on what it can take? sounds to me like a good idea.
theres that... + I'm pretty sure I heard sumwhere that they use the same box from the V8 to the V6 in like VN-VX!

I didnt meant to totally trash the auto box, i wrote the post early in the morning so my brain wasnt fully functioning. The auto trans and engine is a lot smoother and better then the commodores but i was just surprised from what ive READ that the auto can handle around 220kw's, and the fact that i havent seen or read anyone that has actually had the auto strenghtened. I suppose no one has really had any auto work done yet because no one has got that much power from a N/A auto magna but with turbo products comign out now maybe some will come up with parts to make the auto stronger.
Theres been a few ideas in this thread so thats hopefull.
I wanna auto cuz im just lazy and slack. ill do what it takes and ill make it work.

Im intending on s/c my TH with an auto, so far my auto's been fine and it cop's a good hiding
alot of the time, i think the autos are a bit underated with power handling
and i think it realy helps if you keep your oil clean

isnt there a turbo th auto in SA somewhere, from memory it was about 300-400kw??

300 thats nice. Can the triptronic be transplanted into an auto is that possible? are the tiptronics any stronger

Magna23 your better of turbocharging you ride and then waiting for the auto to die. When ti does then look into your options as by then something might be avaliable and you will know what are the weak points of the transmission.

No point replacing your gearbox with something strong when yours is probobly fine as it is.

Thats good thinking aussiemagna. Thrash it around see really how strong it is then you know what needs to get replaced.

It's not power that'll kill the tranny. It's torque.

yep, my 3.0L manual box is still going.

regular service, like changing the oils etc does a world of good! (oil gets changed like once every 2,000km to be sure)

i see no "real" problem with running a auto box

As I said, if you pick the right turbo that delivers power smoothly and take adiquate cooling measures you should see a good life from your auto.

And if something does eventually give in then you know what the weak spots are and where to spend up on. No point replacing the whole auto with something stronger when only to find that the valve bodies fail and the torque converter is in perfect cond (im know bugger all about auto internals) but you get the idea.

Best of luck, but like i say. Stick with what you have until you break something. No point replacing something thats in good working order.

i think we all need to wait until someone actually kills a trans, then look at what they had done to the car and then what they were doing to their car when it happened.

the strength of the gearbox is always a hot topic for modded early datsuns, and its always the ones who build a wild motor then redline it and dump the clutch then stand on the brake frying up tyres etc that say they snap easily :nuts:.
with mine despite the transplant being a bigger heavier motor, it has enouh power power to lift the front of the car in the first 3 gears, but i never killed the gearbox because i let the clutch out smoothly THEN floor it. if i was to rev it up and dump the clutch i might look like ahero sitting there smokin out the street or strip, but then look like a loser a minute later pushing it home :bowrofl: