hello just been looking at a rear disc conversion kit what are the pros and cons from doing the kit.

is it worth it.

thanks joe

 

have you uprated the fronts yet?

 

yeah i have got cossie fronts

 

but been lookin at wilwoods

 

stops great with the cossie stuff all round but i'd go with a better caliper on the front. the only real negative is that it pushes your rear wheels out by around 10mm so depending on your wheel package can cause rubbing issues

 

iv just had the face of my rear cossie discs skimmed by 4mm the wheel now sits in and iv now sat it on its ring!

 

Does it matter whether you use 2wd or 4wd cossie rear calipers?

 

The calipers you use depends on the kit/disks you use, afaik the 2wd ones are solid disk and the 4x4 are vented.

Lee

 

is the vented disk no alot wider and push the wheel out dat bit to far

 

No, the physical disc width is wider but not the part of the disc that is sandwiched between the hub and the wheel.

 

how much do u like facing the wrong way?they can be deadly!ive never seen the point in them my self, most of effort goes to the front, the drums do a good job

 

If your looking at buying the kit from burton its exspensive. If u buy it all on its own works out cheaper. But if your gonna fit it then make sure you fit a bias valve to stop you arse overtakin you!! lol

 

The drums are quite up to the task at hand. Changing to rear discs often leaves you with an over braked back which can be like yanking the handbrake in an emergency braking situation.

 

your better off using XR4i disc's(253mm) and then either XR4i or cossie 2wd calipers(their the same thing)! with this set up you wont get a hint of the rears overpowering the fronts and the car swapping ends!!
Dont use cossie 4x4 vented disc's and calipers or it will want to swap end's under heavy braking!!

 

Thats why you fit a bias valve

 

you dont need one though!

 

not if you like your arse overtaking you lol

 

Why fit more powerfull rear brakes to then reign them back in again with a bias valve?

 

Beacuse drums are crap, disc and calipers can stop better with less effort

 

Exactly!!!!

 

I spose it depends on your car, if your running high power then u need to be able to stop!

 

if you use the set up that i stated above you dont need a bias valve!!!!
It's how i did mine and they are fine!!!

 

Well done to you!

 

wot do ppl think of the willwood 4 pot midlites

 

Im thinking of gettin some myself. Ive got a mate with a 400bhp fiesta and he has them on that, he rates them so im guessing they will be ok for mine! lol

 

lets face it, a majority of people do the conversion more for the looks, and the fact it brings the old methods used on the rear up to date

i can honestly say i have a 4x4 cossie rear set up for mine, and im under no illusion that its pointless performance wise if it has to be wound in using a bias valve in order to bring it down to a level more suited to whatever the front setup is capable of. but mine came for free, and i figure it will look nice, so why not lol

lots of opinions out there on rear disc conversions and bias valves and such, lots of people think shouting and using exclaimation marks makes their theory and method correct aswel

depends what u want them for, what u wana spend, and who u choose to listen to

 

I agree with you mate, im new to this site and im shocked to see the people on here that think they know all that. We are all on here to help eachother out arnt we?

 

And mines a slow arse example. 260bhp, proven at 150mph and it stops just dandy with drums on the back.

You pays your money and makes your choice, personally I hate to see people part with cash for shiny stuff they just don't need.

 

Look im only sayin my opinion about rear discs! Fair play if your drums are working fine but most people opt for discs.

 

Be interesting to see how many of the quick RST boys have swapped to discs? I think you'd be surprised just how many people use the drums

 

i suppose it would also be interesting to see how many people switch to big wheels when they could actually get away with 15s to cover their brake set up, after all they are just shiny and sometimes unnecessary, and just cost u more in tyres...

but again, most people do that for looks, and then the minority do it for a performance necessity

lots of people dont NEED to do conversions like this other than to look pretty, but plenty still WANT to do it

 

How very true that is! Christian still use's drums and he runs 300+ bhp!

 

so ppl just get the disk conversion for the looks at the end of the day. seem to me its just creating more probs n hassel setting them up to work ryt. n dont like da sound off ma back end coming round under hard braking.

think i will be sticking to my drums

 

God why do you always have to argue about it. If someone wants to fit discs let them, no need to argue to tos about it. I pleased for u both that your still using drums but ive gone for discs and ive never had a problem with them.

 

I have a mate with a 400bhp+ FRST and that is still runnning it's drums. Been out in a it a few times and it still manages to stop like you've hit a wall. It's one of th efew cars I've been in that genuinely scares mme with it's pace

 

What you running to get 260?

 

He asked what the pro's and cons were and whether it was worth it. I've given him the best advice I can gained from 15 years of experience with RST's. End of the day I hate to see people part with money for kit they just simply do not need.

You have discs on the rear and are happy, I'm happy for you. It's not a witch hunt. Merely trying to ensure the guy gets the right advice.

 

Suffice to say there isn't much standard

 

I sort of gathered that lol. come on spill the beans...? lol

 

Not in the slightest. People are on here to flex their car knowledge and tell you how to modify YOUR car. If you have any questions about converting your rear brakes ask away, you will be met with a barrage of people taking the piss cos you dont know how to do it, or they think its a waste of time. lol