Neil S

iTrader: (1)

Few questions for you all (Sapphire Cosworth 4x4):

1) Does anyone know the Ford specifications for rear suspension geometry - Camber and Toe please (Cant find it in my manuals)?

2) Does anyone have any preferences regarding geometry settings that differ from the usual specs u get at your typical tracking place. and what are they?

3) Long shot - does anyone know what geometry the rally cars would have run for tarmac stages?

My car has the usual koni's, -25mm springs, poly bushes etc and it tramlines and is generally fidgety on the road

Any answers mucho apprecio

Neil

Sean Bicknell

The only problem you have Neil, is that with your current setup you can only adjust the toe angle (tracking)

The tramlining can be caused by the car running to much neg camber at the front due to the lowering springs. We sell just as many sets of adjustable TCA's to correct this and give people less camber as we do for the track day boys that want to run more.

It is worth getting your car 4 wheel aligned to see if anything is bent, also if your tracking is wrong this can cause the car to be fidgety, especially if the front wheels are toeing out at all.

HTH

Sean..

Neil S

iTrader: (1)

Cheers Sean

Currently (well, 2000 miles ago),

Front:
Toe, 0deg5min (left), -0deg5min (right)
Camber, -1deg48min (left), -1deg49min (right)

Rear:
Toe, -0deg9min (left), 0deg4min (right)
Camber, -1deg40min (left) -1deg43min (right)

Well within ford specs! (fronts, anyway)

Guess some of it is personal preference, but I preffered it more on the chassis dynamics standard height springs I used to have - everyone says 'oh they handle better lowered', but if anything - I have found the opposite

Neil.

Sean Bicknell

OK in my opinion (as you say a lot of geometry stuff is personal preference)

The tramlining is due to too much camber on the front and the fact that your wheels are running parallel.

The level of neg camber you are running both front and rear is gonna chew the inside edges of your tyres matey.

Sean..

Anonymous

Mine runs 3 degrees cambre, i just let go of steering wheel and let the road take you

Neil S

iTrader: (1)

Thanks for the advice Shaun - something to go on at least

Will get the Gaybird decamber plates on, and get some toe in put on for now, and look into getting some adjustable TCA's in the next couple of weeks

Neil.

Neil S

iTrader: (1)

LOL @ Dingy

If mine gets hold of a tarmac joint, or god forbid a white line, youre in trouble lol

Neil

Sean Bicknell

Ever thought of less camber and a stiffer ARB matey??? Would make it stronger under braking and better through fast corners surely?? Do they do an adjustable ARB setup for the front end of a Mk2??

Anonymous

We fitted the gaybird plates to brad/bondy's 3 door...

Actually did fuck all.....so we took them off, car was same, refitted, was same.....big waste of time and a tenner LOL.....emailed mike bout this with no response LOL....

so we have some here.

Anonymous

Sean its a gartrac Tarmac ARB running a tension strutt tarmac setup on tarmac arms and front strutts.....its not as bad as i make it there, handles well on road, can't say for track as it aint been on yet.

Sean Bicknell

Cool man. Book me a place in your passanger seat at National day matey!!

I will have my tyre temp pyrometer with me at Donno. You can take and store 12 temps at once with it (inside edge, outside edge and the centre for all 4 wheels). Tyre temps are the ONLY way to get your cambers right, i'd like to measure yours actually to see what its doing???? Plus will tell you if you are using the correct pressures.

Sean..

Anonymous

Not sure i am running yet mate.

Might have to bail, due to box...

Not sure if to risk it.

But if i do, that would be cool

RichardPON

Neil,

I would agree with Sean on the front camber.

Personally, I've always found std ride height best on the 4x4's I've driven.

However, mine used to tramline like a fucker, and the rear end would wander all over the shop. Get a particularly nasty lorry tyre track in the road, and the back would feel like it was about to let go!

Get on the case with the TCAs for a start and go from there..............

The Youth.

iTrader: (1)

don't forget me!! please...... last years AGM saved the taxi home!!

lol

steve

Neil S

iTrader: (1)

Cheers lads

Mike Rainbird

iTrader: (3)

No you never, you texted me some garbled message over a weekend several months ago and I just assumed typical Dingly hasn't even allowed the suspension to settle or measured the effect it had .

Funny how everyone else has / can notice the difference apart from you . Perhaps the Dingly ass-dyno needs recalibration?

Neil - told you so .

Anonymous

I emailed and text ya LOL

They don't stop the suspension moving up......ass dyno don't do wheel movement my eyes do

Brad and bondy both said.......

"well two bits of tin for the skip then"

Why would they not be working?
why would it look the same?
why would 3 people driving it notice no difference ?

It aint my car so i don't care but it has made NO difference, regardless of other peoples use, this is a track car and has been tested. Has anyone else tested it or just had thoughts in their heads it was better when it actually aint.

Mike Rainbird

iTrader: (3)

Ah, good old blinkers - it looks like it can't have any effect, so ipso facto .

You should have measured the geometry before and after .

Anonymous

PMSL - Stops wheels lifting in arch's

IF you can't tell by drivin it, then whats the point ?

Regardless of measurements, if it feels same its not working is it.

I give in, the allmighty mike R is correct.

It works mint, i got my blinkers on look

Neil S

iTrader: (1)

Mike, I'm already not far off what you suggested yesterday

Neil.

Neil S

iTrader: (1)

PS

I will be

Next week in fact

Neil.