Anybody had experiance with these yet or is it to early days to pass judgment?

Just thinking about one of these instead of a gripper or bara jobbie cause they're meant to be 'bullet proof'...

any input would be great!

 

I'm in exactly the same boat, I know they can take the power but how well do they lock up in comparison to the likes of a gripper?

 

no thinking needed they are awesome, the end.

 

I would say it must be the best conversion money can buy for a cossie!!

The diff seems to be awesome in a supra and pretty unbreakable so should be a great conversion that im going to do too

 

im only running the later small case housing with a carbonetics lsd in and it hasnt broken yet with over 800 hp on 295/30/19 r888s aswell, 1200 miles so far, early big case diff will be even stronger

 

the only disadvantage is that they weigh 45kg
so don't drop it on your foot lol

 

So about 15KG more than a standard rwd cossie diff then? Got to be worth the extra weight for the fit and forget factor

 

fair weight difference but as rich said faf

 

do you think youll add a mount at some point tony?

just mine for road use so dont wana be rattled to death, lol

 

it is un sprung weight and will aid traction

 

...that a no then?

was hoping the 6 degree beam I ordered at the same time would help with traction, lol

 

do you mean a rubber mount?

 

yeah, or poly?

just you mentioned it before in a past post.

 

So how well do they lock up? Who's got one?

 

we were discussing the insulated type mount today for road users
will be based on the 9 inch insulated diff mounts we did many years ago when we were fitting the big Ford 909 diffs to road cars

 

a rubber or polly mount could be made.. fraser is running a supra diff in his car, escozgaz has just had one installed in his car although i don't think he's run it yet. one will be going in the shonky saff very soon.

 

Also want to know this as this is the next thing to to on my cosworth.

 

thinkin about one aswell as i keep shittin diffs

 

what ratio are they? is there any close to the 3.6

 

I got this from the Supra Owners Club awhile ago:

Normally Aspirated - 4.30:1
2.5 Twin Turbos - 4.10:1
3L Turbos (87-88) - 3.90:1
3L Turbos (88-92) - 3.73:1

I keep searching for 3.9 one but they seem to be like rocking horse shit.
Rich

 

I can't fault the diff. I Dont even find it that harsh with the solid rear mount to be honest for normal road use. I'm using poly beam mounts and a 6 degree rear beam.

 

anyone have pictures of a setup? what shafts to use?

 

Tony at turbosystems does a kit that fit straigt into an original cosworth beam and whit standart shafts.
Here is a link whit pictuers off the diff. I hope i can get a discount now for all this advertisement lol!
https://passionford.com/forum/restor...-figure-4.html

 

Thanx mate

 

the conversion bolts straight in to a 2wd beam and uses the standard 2wd drive shafts and std prop
How clever are we
This conversion is a combined effort between Myself and captain grumpy John (Jack Dee)

 

whats the score with speedo calibration, how far out is it? is there any mod you can make?

 

Interesting development certainly and if there's a roadgoing mount ( like for the 9" Ford one ) it would be great.

So, in summary, the 3.73 is closest to the rwd Ford one. How much are the gear ratios affected - anyone know ( using standard rev limit ) and how much higher is top gear revs at, say, 70mph?

 

The 3.64 standard ford ratio is too high we used to alter these to 3.9
much more drivable unless of coarse your aim is to beat rods top speed lol

 

The standard speedo is miles out any way so can't be any worse really lol
speedy cables can calibrate your std speedo any way
and it's hardly a big worry fitting a 3.7 diff as most people have messed the speedo up any way with 17's 18's and 19 inch wheels
The cosworth is still running a 1950's cable speedo ffs

 

I hear what you're saying. I'm still on standard 205/50x15s and standard diff ratio but my speedo isn't too far out according to different GPS apps/devices.

How much is it to source and change a 3.9 7.5" ratio ( 2wd car ) for a standard Cosworth diff as an aside?

 

Then it will go strait in a MK-motorsport rear wrc craddle to???? how much for a diff 3.9 ratio??

 

Looks like a clever bit of kit!!! How much is the conversion incl. adaptor and flanges and also how much is the 6 deg beam?

 

The conversion is a Ł1000 as my mate wants one and has asked but i dont know how much the 6 degree beam is?

What ratio is the one you supply tony and does it come all pretty?

cheers danny

 

it is all shite and briney all adaptors are electroplated in gold
all other fittings are powder coated black
the diffs are either black or silver
ratios currently available are 3.7 at 1k
we can do from 3.6 to 4.3 but these are extra as we have to use a new crown wheel and pinion which is on top of the 1k
personally I think the 3.7 at 1k is a bargain and fine for most peoples needs

The 6 degree double adjustable rose jointed beams are 1K exchange another serious bargain

 

Do they come with a viscous diff or torsen diff?

 

Yea 3.7 will work for almost any app really and seeing as it all comes lovely and clean etc is a bargain and a no brainer compared to any thing else on the market!!!

We will be sourcing one from you very soon..

cheers danny

 

will have to check which ones we currently have available

 

yes please as just spoke to j and he wants one asap mate

 

they are likely to be Torque Sensing Traction torsen differential units

 

3.7 wont work for 4wd though