little bram

Has any1 had 1 and are they any good
Are they a good spec or just std gears and dif with big bearings.

thanks if you can help

jonny s2

iTrader: (12)

from the heading i suggest thats what it is a big bearing gearbox,with no adjusted ratios

johnenright150rst

Got 1 in my fezzy turbo, as above mate just bigger bearings and touch wood it's holdin fine with ova 200 fpt , reasonable price compared to the cts boxes

jonny s2

iTrader: (12)

just out of interest how much do these cost

Karlos G

iTrader: (4)

A big beraing box is just a later BC box AFAIK, doesnt make any difference to the torque that the input shaft can take.

sas

I had one of these before my 6 speeder, very good box it got me to 166.6mph at the daddy thrash. Car was also my daily drive in them days.

Cost Ł550 plus vat iirc

Simon.

xr2wishy

iTrader: (2)

isn't the big bearing box, basically a BC box with the bigger bearing from the IB5 machined to fit into it, i bet they also fit a brand new mainshaft too.
i had this done years back to a BC box for Ł200, funny how things cost more nowadays.

little bram

So there are realy the same as the stage 1 cts box's then. as far as i know they are rebuild gearbox's with big bearing and i think they cost the same

Xr2wishy is that what bearing they put in. if it is i would rebuild my own box

Karlos G

iTrader: (4)

Yup thats pretty much it but CTS stage 1 has a new Input shaft fitted as standard (dont know if Jamsport do that?), the later BC boxes came with bigger bearings as standard, you can tell by the bung behind the main shaft on the casing.
As I said above the input and main shafts are no stronger so the box cannot really take any more power than the earlier small bearing BC box's, it's the teeth that shear off the input shaft and the main shaft that snaps mostly IIRC.

morph

iTrader: (1)

Jamsport big bearing box is not the same as a cts stage 1.
differences are the the gear sets, all bearings, lsd aswell are all refurbed or renewed and the final drive can be changed for a different drive!
i am sure the cts box does not do that.

little bram

Think am going to build my own box just didnt no what bearing's they used. think the cts stage 2+ cost's abit much
if i build a box with big bearing's new input shaft and shot peened gears it will be ok

Karlos G

iTrader: (4)

If you build a box to that spec it almost is a CTS 2+ box! lol
The CTS 2+ has big/late bearings, new input shaft, Quiaffe ATB diff, and shot peened gears!

crazycage

and there still shit for big power lol.

little bram

that's what i thought but didnt think shot peening was that good. i had my con rods done and 1 snaped and bent another dont no about the rest didnt bother taking them out
Crazycage dont no what els to do, i want it on the road and set up for central day. the only other think is a mk5 rs 2000 box as far as i no that you dont hav to put custom made shafts into

10th_racer

is there any reason why hardly anyone uses an ib5 box from such as a sport ka or later duratec engined ka? only reason i can see is due to having to convert it to run a hydraulic clutch. you get a large choice of ratio's and final drive's to use from either a 1.3 ka, sport ka, zs fiesta, puma, racing puma to suite the gearing you want, there are a lot stronger than a standard bc box, bolt straight upto a cvh providing you use a bell housing from a duratec engined ka, cost very little to buy, rst lsd bolts straight in, just knock up a couple of mounts. they are used all the time in turbo'd ka's most of which run round about the 200bhp and 200lb/ft mark on a bog standard box and never go wrong, mine was just over 250lb/ft, standard ka box just with an rst lsd and was like this for years used as an every day car, quarter miles, and thrash's.

joey-p's old frs ka still ran an ib5 box with a quaife atb diff and upratded mainshaft with 345lb/ft through it and used for the same again, quarters, top speed runs, thrash's, and road use and his also clocked just under 160mph.

crazycage

you need custom shafts for any mtx gearbox mate .

little bram

Didnt think you could put much power into them. will have a look into it tho mate thanks

crazycage

you can run as much power as like on them but dont expect it to last it wont. mtx or the focus st170 6 speeder is the only way to go if you want it to be reliable.

little bram

I think the only thing thats putting me off putting 1 of them box's in is i cannt think of what CV jont to use on the O/S cos they use 2 shafts

crazycage

you can us a focus or mondeo one i have used both.

little bram

so did you make a brackit to go onto the block, where did you bolt it to mate

crazycage

mines a zetec turbo but the bracket wouldnt be to hard to sort on a cvh

10th_racer

ours have all lasted fine and are still going, it depends how much power he's running mtx and getrag 6 speed box's are great but but why go to those extreme's if hye's only running say 200lb/ft for example?

little bram

Wish i did a ZT now its a right fuk on this gearbox shit. it a long tow home if my gearboxs gose at centail day

little bram

am not going to stop doin thinks to my engine until i get 300+bhp mate

project rs

then if your after 300 then you want to fit some type of mtx now then as i've just finished my engine that i would like to see around 260 from to start with then up it as i go along and i've fitted a jamsport box to but for the money etc i should of put the mtx in which at some point i will have to in long run so save time and money now and get it over and done with nothing worse than it going when your playing with some jap shit and getting laughed at as they drive off

morph

iTrader: (1)

why's that?
bernie rates the box good for 350bhp and gives a warranty for that.
mate has one on his s2 and he has been abusing the box for 2 years now and not once has there been any issues.

morph

iTrader: (1)

i think most gearbox's that have uprated bearings are from the ib5 box and its a case to machine them to the box which makes it easier than just trying to mod the ib5 to the cvh.

jonny s2

iTrader: (12)

big debate about this box, some good some bad expierience, so if it breaks cts bernie will rebuild for free untill warranty runs out,how long does warranty last for

crazycage

yeah ok keep on dreaming.

morph

iTrader: (1)

ok i will tell my mate that, probably laugh at your comment!

morph

iTrader: (1)

used to be 2 years i think its 12 months now.

Chris69

wot about torque?? thats wot kills gearbox's.
wots in your mates s2? most turbo cars are not that progressive and have quite large torque figures
for example my mate has a dc5 that has 240bhp- his only has 160ft lbs of torque- i'd guess my bc box would last all day long in that motor

crazycage

tell your mate what ever you want lol, but try claiming a failed bc on the warranty when the main shaft bearings fail or you strip the gears off ect then see if he still finds it funny when they fuck you and your mate off .

there is no way in hell a bc will ever be reliable at 350hp fact

morph

iTrader: (1)

i did not say that my mate was running 350bhp FACT!
i said that bernie rated the box upto 350bhp.
Why would bernie fuck me off? when its my mates box!
time for some facts:
FACT - mates box has been in his car for 2 years!
FACT-bernie/cts stage 2 plus box
FACT-no problems ragging the car, inlcuding full launchs
FACT-mates car is 240/250bhp

you should read whats been written and not what you think!

morph

iTrader: (1)

240-250bhp - 230ilbs fts and its holding fine

crazycage

ok im really really really sorry dont hit me with all these facts my brain might melt

but the sad fact is your full of shit the box wont be reliable with 350 hp and you wont get it fixed under warranty.

oh and if the last one was to be a fact then it cant be 240 /250 its one or the other.

Chris69

try 250+ lb ft of torque and tyres/suspension setups that can take that and try and put it to ground in 1st/2nd gear on a dry day.
i'm sorry but 350bhp with 350ft lbs of torque- often the sort of figures cvh/zvh/zt- in fact most ford turbo engines get would last 5mins on one of them box's so i find the claim quite funny tbh.

morph

iTrader: (1)

brain melt down?
ok clever cloggs, i am full of shit, bernie is a fcuking liar and cts dont know how to make boxes!
and you know best and nothing compares to an mtx conversion which can be ragged constantly up and down a drag strip!

crazycage

exactly mate, you only need to ask tim olly paul j christian ect how manny gearboxes they have been through i would say about 40 between them easy.