Front LSD - TorSen type for Celica GT4

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Front LSD - TorSen type for Celica GT4

Postby BNZ » Sat Jan 11, 2014 4:08 pm

Finally got mine and prior installing it in the gearbox i split it open to take some pictures.

It's a TorSen (principle) type self locking diff manufactured and retrofitted to the GT4's front differential. It was a pain in the ass to design and fit due to the small diff case but the guys at the local shop done it.

If someone wants this upgrade it costs 900 GBP and a stock diff to be modified.
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Re: Front LSD - TorSen type for Celica GT4

Postby athousandleaves » Sat Jan 11, 2014 4:15 pm

Wow!

:shock:

Group buy pricing?


How much power can it handle and what car did you have to grab the diff from to do it???
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Re: Front LSD - TorSen type for Celica GT4

Postby BNZ » Sat Jan 11, 2014 4:22 pm

i think i can work-out a group-buy price (will talk with the guys next week) and it will be better for US/Canada guys due to the combined shipping costs
Take in consideration (for the shipping) that i am overseas in Europe (home of TTE :P) and also the manufacturing will take some time (payment will be done after the LSD is done)
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Re: Front LSD - TorSen type for Celica GT4

Postby CMS-GT4 » Sat Jan 11, 2014 5:58 pm

I am very interested. I just have to raise the funds. I am hoping they still make tees by then.
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Re: Front LSD - TorSen type for Celica GT4

Postby athousandleaves » Sat Jan 11, 2014 6:24 pm

I feel that before a group buy can be confidently started we need someone with a high power car (600-800hp) to do some serious testing.
Can you tell us what car the LSD unit comes from so we can get an idea of the power raiting of the part outside of the Celica?
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Re: Front LSD - TorSen type for Celica GT4

Postby BNZ » Sat Jan 11, 2014 6:40 pm

It's build from 0 not "fitted in" from another car (which i don't think is even possible).

Regarding of how much torque it can withstand, i can't give you a nr.
In my case i am sure my 300 hp upper limit the rally car will do it's not much for the diff. I already did my front Torsen for my Renault GTE Turbo, it took a lot of beating and still running strong with no issues, never asked them about HP rating tough...
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Re: Front LSD - TorSen type for Celica GT4

Postby BADNEWS » Sat Jan 11, 2014 6:56 pm

I'm interested!!! Group buy or not.
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Re: Front LSD - TorSen type for Celica GT4

Postby BADNEWS » Sat Jan 11, 2014 7:04 pm

I'll buy one and test it this spring!!! Can you get it to me in a couple months? My trans is apart right now so this will go together fast!
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Re: Front LSD - TorSen type for Celica GT4

Postby athousandleaves » Sat Jan 11, 2014 7:13 pm

BADNEW5 wrote:I'll buy one and test it this spring!!! Can you get it to me in a couple months? My trans is apart right now so this will go together fast!



Awesome!!! Thank you Ryan!!!

Just saw your YouTube videos of your front diff... WTF happened?! Too much action from the upgraded VC???

Sorry about the confusion BNZ, I was a little excited when I first read it and thought you were saying it came from another car and was modified to fit.

Can you maybe tell us some of the metals they chose to make the diff?
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Re: Front LSD - TorSen type for Celica GT4

Postby BADNEWS » Sat Jan 11, 2014 7:16 pm

That was my center diff I destroyed!!!! Front diff was perfectly fine. I think the center diff was a freak thing cause I never even launched the car yet. All I would do is speed/flat shift. If I break a center diff again I have an idea how to weld it like DSM's do.
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Re: Front LSD - TorSen type for Celica GT4

Postby BNZ » Sat Jan 11, 2014 7:24 pm

I reckon it will take about one month to manufacture it (mine took longer but i told them i was in no rush).

Regarding materials, i did not asked, being a gearbox specialized service and a lot of rally guys doing gearbox maintenance here, me inclusive (using another diff made here on my other car).
I know you all may want reassuring of a quality product, but untill tested properly i can't give exact ratings. Nevertheless i will do my part of heavy testing: tarmac, gravel, snow and a bunch of donuts/handbrake turns ! (can't wait to fit it to my short-ratio gearbox and do the Mario center diff mood :D )
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Re: Front LSD - TorSen type for Celica GT4

Postby alltracman78 » Sat Jan 11, 2014 10:26 pm

Was that 900 GBP shipped? Or just for the machining?
Pretty sad no one over here would bother...
Definitely interested. I'm in the process of buying a truck, but I'll do my best to jump on this.
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Re: Front LSD - TorSen type for Celica GT4

Postby BADNEWS » Sun Jan 12, 2014 12:46 am

Can you get a photo of the other side of the diff. Where the housing is the side gear of the center diff? Also maybe the side of the housing? It looks like there are counter sunk bolt holes in the side?
Last edited by BADNEWS on Sun Jan 12, 2014 12:54 am, edited 1 time in total.
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Re: Front LSD - TorSen type for Celica GT4

Postby spitfiremk16 » Sun Jan 12, 2014 12:51 am

I would be interested in this as well pending testing. May take me a while to save up the funds though.
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Re: Front LSD - TorSen type for Celica GT4

Postby Tecker185 » Sun Jan 12, 2014 1:17 am

I'm interested as well and I will find the funds
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