Volvo 240 Rear Disks on 360 GLT

Post by **Volvo 360 GL B200K** » 15 Jun 2004 02:07 pm

Having just found out that the 240's apperntly have rear disks, is it possible to fit them to a 300 series?!?

Cheers

Post by **mgarageu** » 15 Jun 2004 02:19 pm

240/740/940 have five bolts to hold wheels, 300-series have four. 400-series rear discs will be better choice, i think. or from some other car, which has the same wheel bolt pattern (4x100).

Post by **Volvo 360 GL B200K** » 15 Jun 2004 04:00 pm

Yea but the 400 series is front wheel drive, i thought that might mean bigger differances due to different axel e.t.c

Cheers

Post by **foggyjames** » 16 Jun 2004 12:48 pm

The 400 series ones just have a hole through the middle

The centre bores are identical (hence why the alloys fit perfectly). A 200 series swap would be a major job....however, if it fits, I'm thinking of fitting 240 4-pot calipers to 440 vented disks. I REALLY wouldn't bother with rear disks - you need to spend your energy on stopping that heavy front end

Rear brakes don't contribute muich overall, and drums are more effective until they get warm anyway.

cheers

James

Post by **Janitor** » 16 Jun 2004 05:20 pm

yup front first.if you didnt the back would lock up 1st and chuck you off the road!! i know this to be true

.
it can be done but its a quite big job. get some xr3i rear callipers,360 front discs and get an engineer to make brackets(££$$) and fit them

!!

Post by **Volvo 360 GL B200K** » 16 Jun 2004 05:48 pm

Can you put vented 440 disks with the standard 360 calipers...?

Cheers

Post by **5lab** » 16 Jun 2004 08:47 pm

cant you put 340 front disks on the back?

Post by **foggyjames** » 17 Jun 2004 12:05 am

No, the vented disks (no point with the solid ones) are larger diameter and they're thicker. As mentioned above, not much point in putting 340 front brakes on the back - worry about the front first. Mark Higgins has VW Corrado G60 Brembo brakes all round....a VERY nice (but expensive...although good value for what it is) setup.

At some point I mean to go through my data books and work out what will work with what. I still think 440 vented disks and 240 4-pots would be NICE (and semi-stock), although you've really gotta think about the master side of things...the fact that 300 brakes feel so crap ain't due to what's on the hubs...

cheers

James

Post by **Janitor** » 17 Jun 2004 06:23 pm

480 turbo callipers will go on front with carlton vented discs,also astra gte callipers (only 1 type tho). both are 2 pots-but BIG 2 pots which are equally good as say 240 4pots.dont be fooled by 4 pots-2 pots are as good and in some cases better. it goes on the surface area of the pistons not the number of pots.
i have 1972 mini cooper 2 pots on the back,using a locking hydrolic handbrake(you pull it up and press the button in to lock it). i think some citroens have handbrake on front wheels so maybe some of them could be fitted? i also have a 240 master cylinder,for more 00mph

. dont know if youve ever seen how a 240 is piped,but i wouldnt like to re-pipe 1

.they have a proper dual circuit master cylinder.each circuit has 2 pots from each front calliper and 1 from the rear ,so if a circuit fails you will have 50% braking allround.some 240's have the usual 2 circuit,front and back tho. + 240 weigh the same as a tank,usually have a caravan on the back,loaded right up.....so i guess 240 brakes have tobe good.

http://www.opeltuners.com/gtbrakes/

http://homepage.ntlworld.com/mantasport/disc%20kits.htm

did you know if you bleed your brakes,you shouldnt leave the fluid you are putting in exposed to air ! ie leave the lid off the tin or even worse re-use fluid.im sure some1 here has done it. air and moisture get into the fluid,into the system,so when fluid gets hot moisture evaperates and you have air in!!

Post by **foggyjames** » 17 Jun 2004 06:59 pm

Naturally, pad area and pressure are the critical factors - I mentioned the 4-pots as they are generally regarded to be the most powerful calipers Volvo ever made, and I'd like to avoid using other manufacturers parts where possible. A 240 master cylinder is a great idea - how close to standard-fit is it?

Front lockers are also good for burnouts

Our garage left it a bit long between fluid changes, and I had a rather nasty brake-fade incident...so I'm well aware of the dangers!

I think we must make the point that brakes are not something you mess around with - unless you really know what you're doing (or are gonna pay someone who does!), leave well alone...

cheers

James

Post by **Volvo 360 GL B200K** » 17 Jun 2004 07:14 pm

I agree James, i don't want to use non Volvo parts, as when it comes to the insurance, uprated brakes are considered to be performance upgrades! However with all volvo parts on the brakes, 300 or not, they are less likely to notice!

Cheers

Also can you use the 480 Turbo Calipers with any other disks than the carlton ones...? i.e. a volvo alternative, such as 480 turbo disks, in which case would the braking upgrade be noticable...?

Cheers Again

Post by **foggyjames** » 17 Jun 2004 07:33 pm

My main complaints have been with a) overheating (fix: vented discs), and b) 'feel' (fix: master cylinder / servo?)....anyone care to comment?

cheers

James

Post by **5lab** » 17 Jun 2004 09:05 pm

pad area ACTUALLY makes no difference at all. sorry. all area does is makes the pads wear slower. oh and wider tyres? they dont do jack apart from wear slower either

Post by **foggyjames** » 17 Jun 2004 10:10 pm

Oooh! Get you with your assertions

Let me reach for my handbag

Let's get some physics on this...

Pressure = Force x Area. Reduce the area, you need more force to maintain the same pressure.

cheers

James

Post by **Volvo 360 GL B200K** » 17 Jun 2004 10:22 pm

No you don't James...

Pressure = Force / Area

The units of pressure are N/m^2...

Therefore the best pressure is achieved at maximum force applied to a small area!

Cheers!