Sonic Boom

iTrader: (11)

Sat on the start line at Stratford Raceway dropped the clutch and nothing just a clonk and plenty of revs and nothing in the way of forward motion

Had the tow of shame back to pits and noticed the prop was going round but no drive to the rear wheels after a terrifing 1 hour 20 mins tow poling from Stratford to Tysley up it went on the ramp took the diff out and this is what we found:

What's mising here?


Oh yes these two bits! Or should I say 5 bits


Rich

Matt Baxter

iTrader: (37)

Oops lol

CrOwSoN15

WOW, proper job that is!

paul16v

10/10 for effort lol

cossie4i+

iTrader: (15)

Did you get any runs in before you killed it ?

Steve

Sonic Boom

iTrader: (11)

Nope got there early que'd up in the fire up lane 6 cars into the day a Vauxhall Viva smashed into the armco, after an hour and 20 minutes of clearing up they reopened the strip I go to the front of the line and the diff shit itself off the line
Rich

nellyscossy

whoops......wanna buy another one i got one for sale

Sonic Boom

iTrader: (11)

pm'd

Rich

RONNIE AMIS

iTrader: (17)

I've got a 3,9 diff sitting here if you want one to buy

marco polo

iTrader: (1)

Alright Rich


you was told by twinny and myself it wouldn't last 5 mins ........and now you belive us


just put a gripper unit in it job done ...the new grippers are alot better now been bought out


you might aswell upgrade your drive shafts aswell because they will defo have play in them

these are whats on mine now



were only trying to help Bud been through all this shit yrs ago

marco

Sonic Boom

iTrader: (11)

It was ok till the sticky tarmac of Stratford Raceway
Twinnys already rebuilt my driveshafts.
I'm on the look out for a gripper now just depends on price.
Rich

Madgit

Bit of BluTack will sort that mate

ajamesc

Dont forget to shot peen and super finish your c.w.p as i took all the teeth off them coming off a round about in 2nd with my gripper and r888 tyres lol there the last mods you can do before going jag diff or ford 9inch diff. Plus grippers are cheap i got mine brand new for 700!

Turbosimpsons

iTrader: (3)

supra is way forward.

Sonic Boom

iTrader: (11)

I've been on the look out for a 3.9 supra diff for ages but can't find one.
Rich

Turbosimpsons

iTrader: (3)

don't think they do 3:9.. 3:7 or 4:1 ive found.

Sonic Boom

iTrader: (11)

Got this off the Supra forum:

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

Rich

Turbosimpsons

iTrader: (3)

i think, not all of them were bought into the uk

alo

Done the same thing to my diff friday. Shot those two little cogs out of the caseing :0
Are thick walled casings avalible? When these gripper diffs are built into a casing is everything else upgraded? Flanges bearings, cw&p etc.
I'm sure it was my planet gears and pinion that failed not the actual diff.
What can be done to prevent the same thing happening again?
Regards Aaron

R4N SS

iTrader: (6)

shit - i hope my diff lasts at central day - somehow i very much doubt it

i would look for a jag diff mate

Turbosimpsons

iTrader: (3)

jag diffs use the old joints not modern cv joints, plus ive got adapters for the driveshafts and prop so i can use standard cosworth shafts.

Glenn_

iTrader: (1)

Or dear lol.

alo

Which model jag? Theres alot of different models. What mods need to be done to fit the diff to a cosworth beam. Also is there enough room for the diff + extra flanges and the cv's?
Does sound like a good mod but finding it hard to find any conversion info.
I've got about 450bhp and standard diffs start whining after the second drive
Regards aaron

joffy

iTrader: (1)

might be worth speaking to rod as im pretty sure thats what he has on his,

ajamesc

You need to ask rod tarry or mark sheed but im shore rods diff is from a daimler limo! and yes they fit into a modded cosworth beam but drive shafts and diff flange on prop need modding i think. Also im shore rods diff was dirt cheap! but the cost was in having other bits modded

R4N SS

iTrader: (6)

so how much is a supra diff conversion?

Sonic Boom

iTrader: (11)

The 3 Door is now back on the road sporting a brand new Bara 240nm pumped up diff with forged sun and planet gears.
It feels really nice and tight and lights up both rear tyres nicely
Rich

ozmk1cos

kosienutter

Lovelyyyyyyy