4 wheel alignment - advice and figures

[FFMan]

I've seen on here previously people advise the need for 4 wheel alignment on various TVRs. My local garage have acquired laser alignment kit and are keen to have a go at the my Griff 500. However their autodata book does not list figures for TVR, and they weren't sure what adjustment might be available on the rear end.

Does anyone have toe-in figures for front and rear, and how adjustable is the rear end for alignment ?

thanks

[slideways]

mine was done with axle stands a couple of scaffold poles some string and a ruler
worked pretty good IMO

[Chimjunkie]

Get it done by experienced specialist folk. It's not just 4 wheel alignment, but rather a full geometry setup which is extremely beneficial to the cars handling behaviour. TopCats Racing is one of the best around.

[laz11]

Chimjunkie said:

Get it done by experienced specialist folk. It's not just 4 wheel alignment, but rather a full geometry setup which is extremely beneficial to the cars handling behaviour. TopCats Racing is one of the best around.

Ditto! Topcats are one of the best but also a few other similar places out there depending where you are. would definately not recommend taking to your local garage...anyone can "have a go" with laser equipment...but the difference can be huge when taken to someone with a good knowledge of what makes a well set up TVR

Edited by laz11 on Tuesday 10th February 22:34

[RichB]

Racing Green did mine and it was a different car afterwards

[Hoover.]

Steve Guigliame (spelling????) done mine

[spend]

Set the ride height first, if you have adjustable dampers. The rear is adjustable, but advisable to make sure the rear track adjusters are freed off (on the front inner of the lower wishbone). They aren't expensive if you cant undo them - fairly common to be seized up, should be checked each service hoh hum.... You will also need some wedges to set the camber accurately, just tap them down gently to set (you'll see what I mean).

You can get the geo set very accurately with patience, keep bouncing and rolling the car though.

Neill Anderson Once said:

Front & rear camber 0.75 to 1.25deg negative, as equal as possible side to side

Front tracking (toe) 10 to 20 minutes TOTAL ACROSS AXLE (5 to 10 minutes each wheel)

Rear tracking (toe) 4 to 6 minutes EACH WHEEL (as equal as possible side to side)

Front castor 4.75 to 5.25deg Positive (more important that each side is within 0.5deg of the other)

NOTE: As the front and rear wheel alignment are adjustable independently, but only the front wheels are connected to each other (by the rack) it is important that the pair of rear wheels are aligned to the nominal centreline of the car and not just to each other. The castor is not usually adjusted, the spacer at the upper ball joint is simply to ensure adequate clearance at the full extents of negative camber adjustment.

There are other settings that came out of TVR(common bickering ground!), and you can tweak them all to your personal preferences. These are fine as a guideline, starting point, default - however you wish to use them.. IMHO