Suspension Settings - How to find recommended.

MGF, MGF Trophy and the TF alignment tracking figures -

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MGF, MGF Trophy alignment tracking figures

Before any alignment work you must ensure that the ride height is correct.

Ride height
MGF ride height is measured from the centre of the front wheel vertically to the edge of the wheel arch. It should be measured on flat ground after the car has stood for a couple of hours.

MGF ride height should be 368mm+/-10mm.
MGF TROPHY ride height should be 348mm+/-10mm.

This situation can be more complicated, because it is possible to retro fit lowering pins to a standard MGF to reduce the ride height.
It is not immediately obvious whether this procedure has been carried out or not, but if you are unsure then have your tracking alignment checked.
Comparing the tracking settings with the current ride height could indicate what the ride height should be. (Assuming, of course, that the alignment was properly adjusted at the correct ride height!)

As the ride height drops it will make the tyres wear on the inner edges.

If you've absorbed all that- read on.

This information comes from the MGRover handbooks.

Wheel alignment:

Front 10' ± 6' toe-out
Rear 10' ± 6' toe-in

Camber 0.30' ± 30'

Castor 5 degrees 0'± 55

King Pin Inclination 11degrees 40'

MGF TROPHY
TROPHY MGF- has a different suspension setup to the standard MGF and so you will notice that the settings are different.
(Be careful that you know which figures apply to your car.)

Wheel alignment:

Front 05' ± 6' toe-out
Rear 10' ± 6' toe-in


MGTF

The TF has a totally different suspension setup to the MGF and the MGF Trophy. (Be careful that you know which figures apply to your car.)

MGTF Suspension settings.

MG offered 3 sports pack options as 'optional extras' for the TF:-
Sports pack 1 - 10mm lowered suspension (dampers are the same is standard but the lower spring platform in a different place) - £150
Sports Pack 2 - Uprated front disc brakes and callipers, 16" 11 spoke alloys - £850
Sports pack 3 - Uprated front disc brakes and callipers, 16" Ultra lightweight alloys - £1,850

TF160 all came with Sports pack 2 fitted as standard, but sports pack 1 was an optional extra.
All 3 sports packs were optional extras on the TF135.
None of the 3 sports packs were optional for the TF115
Some LE's and SE's also came with SP2 fitted as part of the specification though, hence there are TF115 around with SP2.

MGTF Suspension settings

standard settings

Front Wheel Alignment - Toe Out per side:

0 degrees +/- 6 minutes
0 degrees +/- 0.1 degrees
0 mm +/- 0.665 mm (15" wheels)
0 mm +/- 0.709 mm (16" wheels)

Front Wheel Camber - Negative:

0 degrees 30 minutes +/- 30 minutes
0.5 degrees +/- 0.5 degrees
3.315 mm +/- 0.315 mm

Front Wheel Castor - Positive:

4 degrees 50 minutes +/- 1 degree
4.83 degrees +/- 1 degree
29.98 mm +/- 6.71 mm

King Pin Inclination:

11 degrees 40 minutes
11.71 degrees
78.71mm

Rear Wheel Alignment - Toe In per side:

0 degrees 15 minutes - 6 minutes
0.25 degrees +/- 0.1 degree
1.662 mm +/- 0.67 mm (15" wheels)
1.772 mm +/- 0.71 mm (16" wheels)

Rear Wheel Camber - Negative:

1 degree +/- 30 minutes
1 degree + / - 0.5 degree
6.71 mm +/- 0.315 mm

MGTF Suspension settings

Sports Pack 1

(for use with Sports Pack 1, or X-Power springs):

Front Wheel Alignment - Toe Out per side:

0 degrees +/- 6 minutes
0 degrees +/- 0.1 degrees

Front Wheel Camber - Negative:

0 degrees +/- 05 minutes
0 degrees +/- 0.08 degrees

Front Wheel Castor - Positive:

5 degrees 28 minutes +/- 1 degree
5.47 degrees +/- 1 degree

King Pin Inclination:

11 degrees 40 minutes
11.67 degrees +/-1 degree

Rear Wheel Alignment - Toe In per side:

0 degrees 30 minutes - 6 minutes
0.5 degrees +/- 0.1 degree

Rear Wheel Camber - Negative:

1 degrees 33 minutes +/- 30 minutes
1.55 degrees + / - 0.5 degree

If anyone can contribute further settings to this thread please do so.
Missing especially are the Trophy track settings.



edit. Sorted! :broon:

There is an in-depth discussion of the MGF Suspension Geometry / Tracking over on .mgf.ultimatemg.com.

Prior to reading this article I had the standard setting of;

Front (Toe out 0 degrees 10 mins) -0^O 10'

Rear (Toe in 0 degrees 10 mins) +0^O 10'

After considering the options I had my MGF set up as follows;

Front (Toe in 0 degrees 5 mins) +0^O 05'

Rear (Toe in 0 degrees 5 mins) +0^O 05'

The description for this setting was that the "car feels excellent when placed into the corner, albeit with slightly numb feel about the straight-ahead. Turn-in is fine with the rear toe-angle. Rear end now feels much more secure when pressed. Great fun."


I would whole heatedly agree with this description and would recommend these settings.

Trophy settings added. :yesnod: