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19mm Offset
greggors84 - 16/3/04 at 04:37 PM

i know this has been discussed to the death here and i have done searches and found some info, but i am about to buy some some wheels they are 19mm offset, i know most ford ones are 35mm, but someone previously said that RWD ford ones are 19mm.

Basically i want to know if these wheels will fit under the rear arches? and they wont mess up the suspension geometery or anything. I take it front wheels wont be a problem as the brackets can be bent to suit.

Thanks

greggors84 - 16/3/04 at 09:44 PM

Basically how much room is there inside the rear arches, as the wheels will stick out around 20mm more, the tyres are 205mm, im guessing the people with 17s are running 225 so that means the wheels i would like only stick out 10mm more than these.

Thanks

Mk-Ninja - 16/3/04 at 09:57 PM

My wheels are 15 mm offset, for SVA I have spaced my rear arches out by 20mm as it was a bit touch and go on clearance, I am sure the spaces will fall off after SVA

loafersmate - 16/3/04 at 11:32 PM

I would say the 225's or even 205's are a bit overkill on these types of cars, 185/55R14 (on sierra wheels) fit perfectly in the arches and grip like a bugger too! Light weight is the key to handling and acceleration and gert big 17" weigh a ton

Ben

zetec - 17/3/04 at 08:08 AM

MK spec a ET35 or more for the very reason stated, too little offset leaves the wheel rim outside the rear arch. The Sierra uses a ET40 rim, and I suspect the front upright was designed to be used with this offset to give the correct steering geometry. Most after market wheel suppliers supply ET15 for older RWD Fords and ET35 for later RWD and FWD, found a few which go up to ET52 if you want to fit wider tyres. I'm not sure i would go more than 205 though.

greggors84 - 17/3/04 at 08:48 AM

I have found a set of wheels that i really want, they are 16" so not too big, but they have 205 tyres on them. They wont fit under my cycle wings, so will fit 195s on the back, want dont want to spend too much so want to keep the ones on the back, also means i have a spare set of rear tyres.

britishtrident - 21/3/04 at 08:25 AM

quote:
Originally posted by greggors84
I have found a set of wheels that i really want, they are 16" so not too big, but they have 205 tyres on them. They wont fit under my cycle wings, so will fit 195s on the back, want dont want to spend too much so want to keep the ones on the back, also means i have a spare set of rear tyres.


Like a lot of things to do with Sevens --- less is more.
Too much rubber the car will feel over tyred, the car is less than 1/3rd the weight of a ladden Sierra. Max rim width I would even consider would be 6" on a 14" or with a big engine perhaps 15" rim.

Also when buying wheel rims check the weight, --- some wheel and tyre combinations can weigh more than 25 kg each made up roughly 50% wheel and 50% tyre thats a lot of extra unsprung weight -- a decent racing alloy wheel weighs less than 5kg and choose the right tyre and the wheel and tyre combination will come in at less than 10 kg..