Hi just a quicky but whats the cosworth g/box /transferbox/front diff like in regards to strengh?
im new to cosworths and i dont no what to go for a 2wd or a 4wd as i want it speced up to greys,t34+ but will a 205 block take that bhp etc,just that ive herd the 4wd system is quite weak but has the stronger block. your thoughts please...

 

i was breaking boxes weekly at 380bhp,over 400lb\ft but it depends how you drive them.

 

go 2wd

 

2WD T5 box will handle a fair bit of abuse, stage 3 tune on a 4x4 and its only a matter of time before the box goes bang


Luciano

 

i wouldnt advise going 2wd, as 4x4 is far far better all round.

i think the reason 2wd boxes seem stronger is because they just wheelspin rather than dig in like the 4x4

 

nope the mt75 is wank it's torque rating is far less than the borg warner t5
the mt75 came out of a 150bhp slow as fook v6 sierra

 

a mate of mine runs a big spec mk2 escort, 530bhp, loads of torque,

all on standard 4x4 box and diffs, has ran like it for 10 years,never broke anything

its real light weight, and spins up rather than digging in like shonkey does

 

suppose it would get the odd trackday the 4x4 im looking at is already stg 3?
getting pissed of with g/boxes my rs turbo blew them up on a regular and my williams clio trackcar is on it second box in 2 trackdays...hence doing abit of home work!!!
cheers

 

get a mullit box like mine, job done.

 

whats that set you back?

 

about Ł4500

 

fuck me....2wd it is then!! then again money well spent wont be stripping them gears in a hurry!

 

so true tony just a underspecced box

 

then thers the two diffs to deal with...

 

Take it you have trick diffs aswell??go on then how much these going to set me back?
im all of a sudden feeling a 2wd...so is me wallet!
thats why ive not yet got a cossie my mates 3dr has just been diagnosed as a fooked motor needs a 4k rebuild there massive money for them to be spot on int they?

 

im working on my diffs at the mo, but expect Ł1500 front, Ł1000 rear.

engine, it depends on spec, big power aint cheap to achieve reliably

 

yes i no what you mean-might knock it on the head for a while then!
or at least sell my trackcar first
cheers mate

 

Any chance you could let me know more info on your choice of both diffs and which g/box you going for.....supplier and price....if poss links.......This is my next step...........Its only time for the Big BANG.....Thanks Wilmot

 

you dont have to have a trick rear diff, you can put the bigger diff/shafts/beam in from a 2wd in the back and it'll more than handle the abuse. The ratios are 0.02 out IIRC which is nothing to split hairs over.

Why spend Ł1000 on a diff when you can pout a full 2wd back axle in for 1/3 of that?

Cheers
Dan

 

I imagine this would be easy to do?
What about the rear hubs, would they be needed also???
Would the standard prop length fit onto the 2wd diff

 

2wd all the way. 4wd is dull even with 400bhp where as 2wd will keep you smiling as the arse end overtakes you.

 

Yeah!! and goes straight into a lampost or crash barrier

My motto for this old argument

2wd for going sideways, doing doughnuts and all the boyracer tricks
4x4 for grip off the mark and on the twisty bits


Luciano

 

no! 4wd is for real driving, sideways fast as hell.
400bhp will get your ass out anytime

 

each to their own m8. all i know is 4wd sapps too much power and chews through gear boxes. not my cup of tea.

 

i love 4wd, mines about 320bhp but you can get it proper sideways if you want and i have had it 3 years and the gearbox is fine

 

or alternatively buy an evo

 

slow as fook v6 sierra[/QUOTE<<<<<<<<<DIFFERENT FINAL DRIVE!!!!!!
AND ITS A V6-LOL -BOX IS A BIT SUSPECT BUT COMPARING IT FOR A V6---------HA-HA

 

the v6 box uses exactly the same ratios as a cossie box, only the bell housings are different, same diffs in 2.9v6 aswell

my gearbox in mine has done well and that gets abuse now and then

i used to go through a gearbox each month on greens on my last one

this one is a higher spec engine but witha hydraulic clutch which i thinks helps loads better have never destroyed a diff yet either and only snapped 1 shaft

 

was this aimed at my suggestion of using 2wd? If so then literally the whole 2wd saph (not 3dr the arb locations are different) beam goes in place of the 4x4 one....only thing to change over is the brakes as 4x4 are vented and 2wd are solid (they bolt straight on).

prop will fit.

2wd and 4x4 rear hubs are same

Cheers,
Dan.

P.S. you can also fit a 2wd diff into the 4x4 rear beam by removing 1/2 inch (EDIT 1/4 inch NOT 1/2 inch ) from each side of top lugs (plz check before cutting on my advice). Not sure if you need shafts (thinking not). that way you only have to buy a diff....and shafts max...prob the most cost effective way if you have

 

Thanks alot for that, yes i read an article/web page where a guy had photos and a very good despription on how to cut the 2WD diff into the beam and rethread the casing so you could bolt it all up, just can't remember where it was.... I'll have a look for it now though, thanks thats been a good help!

 

Thinking about it and reading what I wronte it makes sense for it to be 1/4 inch off (totalling the 1/2 inch difference).....so please check the thread before cutting.....

no probs mate...It's an easy way to save a grand IMO. as on a 4x4 you'd need crazy power to break a 2wd rear diff.

Cheers
Dan

 

Does anyone have the contact details for Mullit Transmissions.....Please...........

 

Both 4x4 saf's i have owned both did the gearbox's but i own a two wheel drive now and am seriously contemplating getting another 4x4 cos i miss them.
Each time my box went duff the first time it cost me 350 to get sorted and the second time about 400 but they never let me down once they had been repaired.
If you're new to em get a 4x4 they drive so much better i think

 

pm marco polo off of here mate, he deals a lot with mullit.

Or Martin @ reyland can sort you out.

Dan