ive got a 2ltr corsa so whith all this power the front brakes have bin upgared toi the vectra v6 brake calipers and 288mm disk but as lawton will tel u all the back end swung out on me on hard braking the other day which cud of wrote my car of since then ive taken it out an tryed stoping the car as fast as posible from around 70mph an still havnt had the back end swing out so i jus dont know if this was jus a 1of but have bin thinking of putting dicks on the back instead of the drums do u know if this wil help with braking of jus look good any help plz

Rear discs will improve your braking efficiency without a doubt matey.

Check if your car has a rear brake compensator valve fitted as these are prone to seize up and could have contributed to your problems ?

cheaked that an its fine ive breaked harder that wot i did the other day jus duno y the back end went all over the place

Because the front brakes do approx 75% of the braking therefore when you brake hard all the weight transferes to the front of the car making the rear wheels very light and skid easily. The front wheels now have all of the weight over them so this creates more traction and harder to skid.

This is a great little trick to get a front wheel drive car sideways, when entering a corner under acceleration suddenly back off the throttle when you corner, this transferes the weight to the front wheels and the rear wheels become very light and therefore have very little traction, they skid around to the side easily causing the car to go broadside To regain grip simply accelerate again and the weight transferes to the rear wheels again and you get the grip back

I think you'd be asking for trouble if you looked into a rear brake conversion, as Scooby says about 75% of the braking comes from the front end and by fitting bigger/better brakes you can easily get the car to swap ends

However, you could do a conversion but also fit a Brake Bias Valve that you can adjust, to make the front/rear braking harder or lighter. The 'valve' would be mounted inside the car and you can tweek/finetune the brakes under test conditions.

ok thanks for ur help

Get the hubs off an Astra GSi and put them on. Not really needed though, people do it for cosmetic reasons mostly. Think of it as a blessing your back end doesn't lurch out!!
I've got a pair of hubs here as well.

how much work is there in fiting the rear beam

The rear beam simply bolts on. Drop the handbrake cables, brake pipes, rear shock absorbers and unbolt the beam, Sorted

Well dicks aint gonna make u stop any quicker mate

it will do when u lash my monster knob aout me window an use as an ancor

i know how 2 do that but how much work is there in pluming the rear disks in

I think the Astra beam is too wide for the Corsa, you'll have to do the hubs alone.
There's a bit of drilling involved, but just one a couple of the original holes, it takes about five minutes to drill a hole through, the hub is lined up with the bearing. Astra ones also has ABS?
I'm also not sure if the Corsa has the same servo as the Astra (astra one might be bigger), I've put an Omega V6 servo in and the difference is very noticable.

Or you could go the distance and use Cavalier V6 struts and hubs.

i think ill look into this on the vorsa sport web site

LMF do the rear disk kit mate!! but they won't be much different mate!!! isn't there amod u have to do to the corsa when u lower it by 60mm!!?? sum bracket has to be added doesn't it!! am sure thats what it says in the haynes maxpower corsa book!!??