what sort of power and behaviour has lead to broken gear boxes and what exactly has broken in them?

I was under the impression that the boxes were quite tough.

I was under the impression that the boxes were quite tough.

Since I bought my car its been on the road 3 weeks and I've been through two gearbox's. The first one was 110km old and it blew up just after doing 210km/h for around 4 hours straight and the second one was 180km old and it blew up after driving round Adelaide for 2 weeks.

That will give a bit of an idea for you.

-Daniel

I was under the impression that the boxes were quite tough.
They are. The manuals very much so and auto's/tippy's too. There's always lemons. Mate, Dave from RPW with his million horsepower twin turbo magna is still running the standard gearbox (Ralliart LSD I think?)

To the original poster: you might want to specify if you are referring to auto or manual transmissions.

In reference to your post in the thread about my possible diff problems..... You might want to look up the phone number for Eddy Wreckers in Adelaide and talk to Ian Eddy.

Ian has been racing a TL magna in Improved Production for quite some time. He has a Kazz LSD fitted which was sourced for him by a performance diff shop in Adelaide. I made some enquiries with them - and they were able to go back through their sales history and confirm the part they put in Ians car.

both my gearbox's which I blew were autos.

Eddy wreckers number is 83711499.

They are. The manuals very much so and auto's/tippy's too. There's always lemons. Mate, Dave from RPW with his million horsepower twin turbo magna is still running the standard gearbox (Ralliart LSD I think?)

Cusco unit in Davids car.

Cusco unit in Davids car.
There we go. Both are extremelly strong. I think the TJ Magna that runs in the car races seen on SBS during Speedweek runs the Ralliart LSD?

Definately manual. I have a complete 380 drivetrain, but will be in RWD format with 255 'R' tyres so much more grip, hence the query.

what do you mean rear wheel drive?

I thought 380's were front wheel drive.

what do you mean rear wheel drive?

I thought 380's were front wheel drive.

they are, but i can rememebr this dude making a shell and running a mid engined rwd ie mount the fwd g/box at rear driveaxle, ie not going in magna.

Near impossible to convert a fwd g/box to run a driveshaft straight out the back.

what do you mean rear wheel drive?

I thought 380's were front wheel drive.

I assume it means he's building a purpose built race car with a rear engine / RWD setup. The engine will be in east/west (or west/east) configuration. In which case - there's not really any point asking magna for advise on this forum, because no-one here is going to be able to answer your question sufficiently.

both my gearbox's which I blew were autos.

Eddy wreckers number is 83711499.

The autos die because they overheat, i remember Bain saying his tippy would start slipping after a prolonged thrashing, 4 hours at 210kph pretty much qualifies as a thrashing.

The manual boxes are strong but people seem to have a knack for breaking the diffs. In a straight line you'd have to drop the clutch hard and often to snap it, but around a corner the forces are exponential and especially more so if your wheels are bigger, explains how people break them doing hasty u turns in a relatively unthrashed car.

You are correct WRT the application. I am the publisher of Race Magazine and the car is the project car in that publication. This means that Magna specific information is not relevant, however driveline information is relevant.

what do you mean rear wheel drive?

I thought 380's were front wheel drive.


did my box i sold you blow up???? :confused:

i think you are cursed daniel!

You are correct WRT the application. I am the publisher of Race Magazine and the car is the project car in that publication. This means that Magna specific information is not relevant, however driveline information is relevant.

sounds good!

any hints towards what type of car you'll be building? and what class/power requirements your chasing?

sounds good!

any hints towards what type of car you'll be building? and what class/power requirements your chasing?


using my psychic abilitys to control my right hand and use the mouse to scroll up i am thinking that he may be making a rwd mid engined 380.... :P

or a 380 driveline mounted in the rear of a custom chassis? just a custom chassis could be anything from an off-road buggy (seen a few running magna 3.5s) or an open wheeler track monster

both my gearbox's which I blew were autos.

Eddy wreckers number is 83711499.


It's no secret, the Mitsubishi Auto's are shocking, theres always issues with them - you will notice posts about auto's on here are frequent, with issues. Even if you do a search theres well over thousands of Questions/Problems concerning them.

Id never buy another Magna thats Auto, id go a tiptronic or manual, but its different for everyone.


Honda or Nissan my next car!

Id never buy another Magna thats Auto, id go a tiptronic or manual, but its different for everyone.

The tiptronics are just the same as the autos, just with an electronic over ride function.

The tiptronics are just the same as the autos, just with an electronic over ride function.


hence why I would not buy another mitsubishi :redface:

The car will be an enclosed sports car about Cayman size. I know what it will look like, but that is not information to be released yet. Wheelbase 2570, ht 1245, wt 900.
Chassis is similar to this: http://i129.photobucket.com/albums/p234/NRoshier/godivasketch3.jpg

did my box i sold you blow up???? :confused:

i think you are cursed daniel!

yeah, it lasted me around 2 weeks.

Gearboxs are fine.. Its the Diff centres that are crap..

Ive had my car 2 and half years now and done three diffs.. Last one was my Cusco LSD.. i know it suxs as i have just returned from workshop.. spent the last 3 hours removing the box from car..:(

Thats the only weak spot ive seen..:)

yeah i live in perth and i was down south when my gear box went on my TJ Comm Edition.. only done 51,000 and the box went... and my bros magna box went on him a few years back not long after he had his too... apparently its quite common in the 3rd gens?? dont quote me on that but thats what ive heard...

yeah i live in perth and i was down south when my gear box went on my TJ Comm Edition.. only done 51,000 and the box went... and my bros magna box went on him a few years back not long after he had his too... apparently its quite common in the 3rd gens?? dont quote me on that but thats what ive heard...


common on all magna's