straight cut kits
Turbo Mini Forums

took my car out on a run last night for the first time, it was going quick and runnin pretty nice till my g box went pop, people said it my not last long but didnt think it would go that quick, any one cheapest place to buy straight gear kits and drops, ill rebuild my self just dont wanna spend to much

sorry to hear about that, Try Mini spares.

Best 1/4 mile 13.2 seconds @116 mph
First 5 port miniturbo to make over 200 bhp on a carb?
First 5 port miniturbo to make over 200 bhp on Injection?

http://www.mattwoodsphotography.com

helical gears and turbo's go together a bit like weedkiller and sugar all ways ends up going bang some were down the line.

mini spares drops with a clubman sccr set should do plus a 4 pin diff you will have a bomb proof gearbox.

always looking for them bigger bunches of bannanas

hateing the sound of that i've got the same standard gearbox and haven't really tryed it!!!

i'm a bit scared now

http://www.Zeemax.com

i bet the diff pins gone!.........
if not the idler gear, the bearing in the g/box side is duffed and usually it picks up on the shaft.
if you replased the diff with say a mini spares 4 pin diff, which is the choice of most guys on hear. "unbustable"
the actual box is a lot stronger than most people give it credit for

say 120bhp + ish

Edited by BENROSS on 14th Feb, 2005.

how old is the box and how much bhp is it dealing with?

alex

AlexF

Is it an engine-out job to put a minispares 4pin dif on?

Previous Engine: 1040cc Morespeed engine, 1275 turbo head T2 Turbo Mirage Manifolds Megajolt
Previous engine: STD metro turbo, megajolt
Drives: 399bananahp (flywheel) Honda Civic Vtec b18c4 T28 Turbo 1968 Mini

Megajolt maps to download: http://www.jamesfawcett.co.uk/cms/index.ph...&gid=3&Itemid=3

yes, realisitcally!

alex

AlexF

engine is a 1293 morspeed engine with piper t2 cam, fully worked crank, omega pistons dished to 18cc, morspeed booster head, 10 psi boost intercooled system. im guessing power to be round 130 140 but not had it r roaded yet, im gutted only drove it 1 hr, the box is only 6 months old, its 2nd gear thats stripped got other gears.

personaly speaking, drops are a first to go in, followed by the 4 pin diff and coming at a close 3rd a sccr set.

but bearing in mind turbo,s will kick out a shed load or torque quiet low in the rev range this is what is a big killer in a gearbox.

the helical gears whether they are the drops or or the gear set try and pull in different directions shagging the 1st and main bearings on the main shaft as well as the lay gear. same goes for the drops. gear casings and transfer casings dont last long even if you put them to the tighter side or the idelr gear endfloat.

i have also seen plenty of stripped input and laygears as well but this is mainly down to rapid starts on the line wheter its at the traffic lights or doing the 1/4 mile.

it all adds up and weras out quickly.
but having said that ben is right a helical box can take 120ish but you would have to be pretty gentle with her at lower speeds as this is when most of the stress can be loaded through the box.

plus i would say also any thing over 130 bhp i would defently fit a pin diff.

always looking for them bigger bunches of bannanas

that was ment to say a 4 pin diff !!!!!!!!.

always looking for them bigger bunches of bannanas

Why on earth do you want to buy the cheapest SC kit?? Buy a proper set, if not you'll be in the same situation again.
Helical gears are OK as far as sthrength goes, but the ratios leave little to be desired. I guess BIR1 could vouch for this.

please:
only thing i can say is you must have been giving it right bongo.

wolfie, be honest: what was you doing at the time to make it fail buddy?

pulling very slowly away from a roundabout

well thats it then!

your going too slow LOL



before that?

i was not driving at the time

a so called mate said he was not abusing the car

wolfie, suprise me buddy but...............
a so called mate said he was not abusing the car



i think there is more to it than you have been told by your
so called friend.

i may have quoted wrong saying they are unbustable
well you can brake anyting if you try hard enough!

i should imagine "your mate" is the only one who has busted one of these diffs???

does reversing flat out and then banging it into 1st and flooring in spring to mind ?

it has to me.

i would only let my granny drive my motor then with a rock under the pedal. and she 96

Edited by BENROSS on 17th Feb, 2005.

i dont think we will ever know mate

ill email you a pic the weekend after ive dug it out the scrap bin

thanks buddy