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Guys
Just picked the tiger up.
The garage has set the suspension, with the following comments. What do you think?
We have quite a lot lean in on the left hand side (>5mm rim bottom to rim top) with no shims and on the right hand side three shim plates (aprox 5.4mm or 3.5/16”) to match this.
Do you know if we shim up top is usually enough to achieve the castor or if I will have to shim the wedge as well. Any insights?
"Your car has quite bit of negative camber on the left hand side that we cannot do anything about, It is about 5mm lean in at the top of the rim, newer understood cosinus and sinus, so I cannot tell you the degrees.
This is quite a lot for a road car and thus the guys doing it last time had to put a lot of shims in at the right side to set up both sides similarly. The more shims, the more lean in! On normal cars it is the other way around, but with the Tiger the fulcrum shaft runs behind the crossmember post. Took me a while to get that into my head.
So we will be stuck with more negative Camber than desirable or than Dale suggested, turn in will be a bit more aggressive than with ordinary cars, but that will suit the chosen tyres just fine.
It is really your crossmember, not a lot we can do. All relevant weak links are eliminated, both sides have new bushes to and bottom, the difference must be in the crossmember. In the Forum they state that these sack under the v8 weight and this would result in more preset camber
Also, Caster can be altered the same way, you put a spacer shim, not a spacer plate, in between the back bolt of the fulcrum shaft and the crossmember, thus achieving a bit more tilt of the hub carrier to the rear and this increases your caster. On normal cars that is not possible as the fulcrum shaft is usually parallel to the car axis. With the Tiger it is aprox. 20 to 30 degrees toe out, thus even more toe out by shimming it means more degrees out and more Caster. Strange setup really, but I will manage hopefully. Should the Caster be really out, you can unbolt the complete crossmember that is sitting on an aluminum wedge to the frame as to tilt it in itself. You can alter that wedge by shimming it front or rear, but that is a bigger job and will not be possible tomorrow. So hopefully shimming the fulcrum and setting the track will be enough."
Any ideas?
Thanks Guys!
Sean
Just picked the tiger up.
The garage has set the suspension, with the following comments. What do you think?
We have quite a lot lean in on the left hand side (>5mm rim bottom to rim top) with no shims and on the right hand side three shim plates (aprox 5.4mm or 3.5/16”) to match this.
Do you know if we shim up top is usually enough to achieve the castor or if I will have to shim the wedge as well. Any insights?
"Your car has quite bit of negative camber on the left hand side that we cannot do anything about, It is about 5mm lean in at the top of the rim, newer understood cosinus and sinus, so I cannot tell you the degrees.
This is quite a lot for a road car and thus the guys doing it last time had to put a lot of shims in at the right side to set up both sides similarly. The more shims, the more lean in! On normal cars it is the other way around, but with the Tiger the fulcrum shaft runs behind the crossmember post. Took me a while to get that into my head.
So we will be stuck with more negative Camber than desirable or than Dale suggested, turn in will be a bit more aggressive than with ordinary cars, but that will suit the chosen tyres just fine.
It is really your crossmember, not a lot we can do. All relevant weak links are eliminated, both sides have new bushes to and bottom, the difference must be in the crossmember. In the Forum they state that these sack under the v8 weight and this would result in more preset camber
Also, Caster can be altered the same way, you put a spacer shim, not a spacer plate, in between the back bolt of the fulcrum shaft and the crossmember, thus achieving a bit more tilt of the hub carrier to the rear and this increases your caster. On normal cars that is not possible as the fulcrum shaft is usually parallel to the car axis. With the Tiger it is aprox. 20 to 30 degrees toe out, thus even more toe out by shimming it means more degrees out and more Caster. Strange setup really, but I will manage hopefully. Should the Caster be really out, you can unbolt the complete crossmember that is sitting on an aluminum wedge to the frame as to tilt it in itself. You can alter that wedge by shimming it front or rear, but that is a bigger job and will not be possible tomorrow. So hopefully shimming the fulcrum and setting the track will be enough."
Any ideas?
Thanks Guys!
Sean