Bosch

Okay, for them who run fiesta mk3 what would advice be on wheel size? Is there a big difference between 15s and 16s with handling? The issue is the cars running high spec brakes and 15s won't go over them. So if 15s were my best option I would need to convert to 4x4 cosworth brakes and 2wheel drive disks. The cars currently on gaz coilovers. Currently got ecos wheels on but they are way too wide for track.

Your advice please

Oranoco

15" no arguements. Choose the wheel carefully and you may clear the brakes, or accept the compromise and use a 16" rim. Either way lose the Escort Cossie jobs as although they look smart the offset at ET25 and 8J width make them fucking useless.

Bosch

I've been looking at speedlines, advice given was 15s and lose the brakes as cosworth calipers and disks will handle 300bhp and stop well. Better being its also a lighter car so high specs could go.

Definitely way to wide the cosworth wheel. Noticed this on our last track day.

Plus with 15s I can drop the car some more and harden the suspension as its on very soft to stop the car jumping around the corners.

Is there any standard camber adjustments that can be made to the car at all?

frsjon

15's and you need 4x4 cossie calipers AND 4x4 discs.. 2wd disc are for converting a escort (s2). st170 disc/calipers fit under 15 inch comps (300mm disc). i have AP racing 4 pots and 300mm disc's under 15's

crazycage

as above 15s

Brian

iTrader: (2)

As already said 15"


Brian

Oranoco

Fiesta ST150 discs and callipers fit and work nicely behind a 15" rim, I ran them on my old FRST. Mate uses Cossie 4x4 fronts on his 380bhp FRST and that sort of stops

Bosch

How you managed that! APs under 15s. Test fitted my standard rs1800 wheels I have and they won't fit. Hi spec 4pots and 300mm discs lol

Looks like 15s is the way forward

dug112y

iTrader: (1)

i'm on 15's on mine but the car handled better on the 14's with slicks and fiesta challenge brakes. i have 300mm hi specs on with comps(its tight) and big body ledas....its been a pain to get wheels to fit ET 26/27 is about right.

wildheart

iTrader: (4)

Standard RS1800 wheels are 14"

frsjon

i modded a pair of AP's from a mgf trophy..(AP7600 calipers) to fit

rsmark86

iTrader: (3)

i was going 15" as they drive much better but just got some pro race 1.2's with tyres for Ł128 on ebay so cant grubble

as above a 15" wheel with the best offset and sticky tyres is the way to go, cossie brakes with decent discs and track pads, and good bushes and suspension

rsmark86

iTrader: (3)

mondeo servo is a good mod, been in a car with one and makes a good difference with bigger brakes, its what im doing once i figure out how lol

TIL13R

As already said..... I am fitting Wilwoods 286mm 4 pots to mine, also braided hoses and Mondeo servo too...

I hope it will stop the 250bhp

Oranoco

Have a look at K-Sport brakes, heard much bad stuff about the Wilwoods.

Bosch

Sorry they are rs2000 wheels lol