Camber adjustment G27
Discussion
You can change the triumph suspension to make camber and caster adjustable, which I have done on my G27, but it's not cheep (£700+) as it is effectively all new. The car is a series 3 G27 with live axle rear and had GT6 front suspension with a front arb (11/16 inch with rose joint links). I used Spyder Engineering adjustable wishbones (specials to order) and Canley Classics Caterham style uprights (these need standard Triumph lower wishbones to fit not the Ginetta round tube ones). I fitted red polybush lower bushes and use a good quality camber gauge to set caster and camber and not the cheap bubble ones. Camber caster adjustments take 30mins but getting it right takes days!
I set caster to 3 degrees pos and camber to 1.1 deg neg (adjustable to 3 deg neg) with ride height at 5 inches to bottom of chassis rail under rear lower wishbone mount. Still testing but this set-up works well for me.
I set caster to 3 degrees pos and camber to 1.1 deg neg (adjustable to 3 deg neg) with ride height at 5 inches to bottom of chassis rail under rear lower wishbone mount. Still testing but this set-up works well for me.
by the way: what is the reason Ginetta suplied 2 differnt length of sleved spacers for fixing the lower wishbones to the chassis. the shorter one (1 1/2")should be mounted towards the front. the 1 5/8" to the back.
cause of the castor?
the built manual also says that the anti rollbar eyelet should face backwards. is the reason that the wishbones arent symetric?
cause of the castor?
the built manual also says that the anti rollbar eyelet should face backwards. is the reason that the wishbones arent symetric?
Don't think spacers have much to do with caster as 1/8 inch would only alter caster by 0.85 degree at most, also the wishbone position is constrained by the outer mount points.
Curious about your manual, on the G27 pages I have it says the ARB eye must point forward and either Ginetta or Triumph wishbones can be used. Have you measured the L wishbone to see if it's asymmetric?
Curious about your manual, on the G27 pages I have it says the ARB eye must point forward and either Ginetta or Triumph wishbones can be used. Have you measured the L wishbone to see if it's asymmetric?
You would need to change the upper wishbones to an adustable type like the Caterham - using the Fiat/FSO track rod end for the top ball joint.
Not sure that the description ypu are giving of the trunnion is translating very well.
What Camber do you have at the moment and what are you trying to achieve - I have seen it made adjustable crudely by elongating the ball joint holes to give adjustment up to a degree or so.
Not sure that the description ypu are giving of the trunnion is translating very well.
What Camber do you have at the moment and what are you trying to achieve - I have seen it made adjustable crudely by elongating the ball joint holes to give adjustment up to a degree or so.
Comadis said:
yeah, triumph based.
how do you adjust the upper wishbone and what is the advantage in doing this, as the non-tiltable trunnion on the bottom will give the direction ( and the camber angle)?
how do you adjust the upper wishbone and what is the advantage in doing this, as the non-tiltable trunnion on the bottom will give the direction ( and the camber angle)?
Edited by Comadis on Sunday 26th July 18:00
lets clarify first my "old" questions:
1. what is the reason Ginetta suplied 2 differnt length of sleved spacers for fixing the lower wishbones to the chassis?
2. why the built manual demands the fitting direction of the lower wishbones (antirollbar mounting point to the front)?
1. what is the reason Ginetta suplied 2 differnt length of sleved spacers for fixing the lower wishbones to the chassis?
2. why the built manual demands the fitting direction of the lower wishbones (antirollbar mounting point to the front)?
Edited by Comadis on Saturday 1st August 08:50
another update:
i fitted these lower wishbone spacers according to the construction manual. i also used the demanded amount of washers. (1 piece facing towards the bush)
unfortunately i do have some play between the (short)spacer and the chassis which results in a wobbling stearing wheel during drivin. the play is more on the left than on the right side. to get rid of this play i used another washer on the right and 2 additional ones on the left.
what the hell has ginetta thought in constructing it like that? there must be a reason but i do not have any idea!!
i measured the spacers: they have exactly the length which is written in the manual.
i fitted these lower wishbone spacers according to the construction manual. i also used the demanded amount of washers. (1 piece facing towards the bush)
unfortunately i do have some play between the (short)spacer and the chassis which results in a wobbling stearing wheel during drivin. the play is more on the left than on the right side. to get rid of this play i used another washer on the right and 2 additional ones on the left.
what the hell has ginetta thought in constructing it like that? there must be a reason but i do not have any idea!!
i measured the spacers: they have exactly the length which is written in the manual.
Edited by Comadis on Saturday 1st August 19:16
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