hello, i keep breaking gearboxes so need a more robust item so have chosen an st170 box but was wondering exactly how i would go about fitting it to my erst. if anyone can tell me what bits i would need, what would need modifying and if they have any idea how the car will drive with this box compared to the lsd item it comes standard with i would be most appreciative. any information on subject welcome i just want to research this before i steam in and do it!!
cheeRS!!!!

 

What power you running 1st ?

 

also what engine is it on as cvh will require you to have box re-welded to take front starter as rear starter won't go on cvh, then custom clutch/flywheel, custom shafts and repositioning of servo

 

Can be done good luck it is a good box. Ring my mate luke 01444881949 he has done some he will help you.

 

I have one running in my ZVH.

This man is selling everything you need.
https://passionford.com/forum/cars-f...-breaking.html

 

it is cvh and running about 200 bhp and need to find sum 1 breaking an st170!!

 

Properly rebuilt BC box should be quite up to the task at hand.

 

I think there are a few people on here that can vouch for my.. err... progressive driving style. ahem

 

sorry to hijack but i possibly have the chance of mentioned st box an i have a full zetec turbo engine in a mk3 fiesta would it be possible to also fit this into mine thanks
mods please delete if off topic thanks

 

it'll fit straight on the zetec engine as thats what the st170 is you'll just need custom mounts and shafts to make it fit in mk3 fiesta

 

ok cheers sounds like a plan

 

not forgetting the Ł500 clutch and flywheel u need and hydralic clutch pedal and u still wont have a diff all though if u go on ebay.com there is an obx diff for the st170 box notsure how good they are tho

 

For the st box to fit a zetec AFAIK for it to bolt up properly
is just use an st170 sump because it bolts into the sump itself too
just use a 2.0 zetec flywheel and focus rs clutch. Also somewhere
for the gear selector cables to run. + hydraulic clutch conversion.

 

focus rs clutch and flywheel WONT fit .

 

If you have 200hp then stick with a stage 2 Berni box from CTS.

 

as said trhe focous rs clutch wont fit the st170 box/input shafts

 

st170 is the most expensive way to go sue to the clutch and fly wheel (ask luca) focus rs box is the best as it has the atb as standard, standard rs box-cts stage1-stage2-stage2+ = pretty much the same. Could last forever, could last 5 mins
I hjave a stage 2 going on my zvh, but from speaking to a number of people, there is no difference what so ever in reliability on the rs boxes

Crazy cage knows a thing or 2 about these conversions, Luca also, both top people with a lot of USEFUL knowledge

 

You can fit an uprated clutch to the ST170 flywheel (not expensive)

There also is a cheaper option uprated clutch and flywheel package now available.

Simon.

 

which is? and what sort of power can they handle mate?

 

Helix do an uprated std unit. approx 300 lbs torque
I do a flywheel and even stronger Helix unit. 375 lbs
I also do a flywheel and single plate race clutch stronger still. 450 lbs

 

any prices mate

 

Do the clutches have sprung friction plates to work with a 230mm alloy flywheel.i have the fidanza flywheel which is made to the same size as the standard duel mass flywheel and need a cluth kit to suit.

 

Think ill end up going this route to later this year as my car is on its 3rd cts 2+ box now.

 

how long have the cts boxes lasted?

 

Yeh the first option works on a standard style flywheel.

 

First one let go when the car was live mapped so not very long Second one about 3k miles later and now the third one is jumping out of first Going mtx when this goes.

 

ive not heard on an st170 box go yet!

its a fit & forget if you ask me,

ps, i also have one for sale if anybody needs one

 

you will get told the focus rs box is better,but the st170 box is still a good strong box,speak to luca, big power zetec turbo and still loving it. put it this way its got to be better than any cts box(fit and forget)

 

my mates havin a focus rs box fitted to his zvh'd firsta track car, but that said he didnt look into st170 box

surely its goin to work out more expensive as it has no diff?

 

At least 6 years in mine (admittidly car's been laid up for 2) but when it was on the road I kicked the shit out of it on track and off it.

 

Well my car made it to oxford rsoc show today and then the box said goodbye 10miles from home on the way back

 

are you going 6 speed? if so pm me

 

Not to sure what to do to be honest. Weather to go mtx or 6speed or get my cts 2+ rebuilt properly as last time it went was just thrown back together with 2nd hand parts.

 

Jaiscossie,

got your pm, unfortunatly i am not selling, i am going to keep it and kill it, the lsd will be for sale once the box poo's itself. I will keep everyone posted on how long it lasts once my car has been finished and mapped. I would recomend the MTX conversion any day, even over the 6 speed as the standard ratios on them are very close, I think there is about 10mph difference between 3rd and 4th but I may be mistaken. Luca and SAS run these boxes and im pretty sure they have never had any problems with it.

I shall be going Focus RS once my cts has given up.

Cheers

Raj

 

jamie dont be daft, fit and forget thats what i say