This is probably outside the scope of this forum, but I can't find an old rotary forum.


We have an RX2 rally car with a 12A bridgeport (1975 - series III). We recently got it tuned and found that the timing was way out, jetting way too rich and we went to 43.6 mm chokes from 42. There is at least 50-70% more go than before.

As a consequence of this new found horsepower the handling of the car has been exposed as being inadequate. I was wondering can anyone suggest some steering settings to improve the handling - things such as castor, camber and toe in/out.

A quick rundown of the specs:

Custom made rally suspension (no problems here)
Adjustable lower control arms
RX2 antidive bushes (racing beat - increases castor by 1 degree)



Ideally we are looking at a way to significantly increase the castor. Other rally cars run up to four or five degrees, which would be our ideal aim.

I was looking at the RX4 anti dive blocks and they look like they could increase the castor by dragging the sway bar forward.

Other than that does anyone have any other suggestions?

Any forums that deal with these older cars?


You help would be greatly appreciated.

 

does anyone make camber/caster plates for those still?

 

I think racing beat make a non adjustable one, but I would prefer to have it adjustable.



Does anyone have any further ideas? I am thinking of trying the RX4 blocks as they are offset.


Can anyone help please, or send me to someone who might be able to help me

Thanks

 

You should do a search and find the ground control web site. Call them and they should be able to give you some more info. All of this stuff cost money so ??? But they sghould be able to help.

CJG