Just looking at the cams manual for Performance 2WD regading front suspension, I found the following quotes:
(i) The original chassis and/or monocoque, including any sub-frames, must be retained in its original location; and must remain unchanged in dimensions, plan view and silhouette.
(iv) It is permissible to remove the minimum amount of material necessary to allow the fitment of approved wheels, tyres and suspension permitted under these regulations, however this freedom does not extend to steering (eg, tie rods).
I am wanting to fit some long travel arms but it will require the removal of a fair amount of the front chassis rail to allow this fitment. part i and iv seem to contradict each other. But on the other hand "minimum amount of material necessary to allow the fitment of approved wheels, tyres and suspension" would allow the removal of whatever is needed to fit the arms.
it looks to me like you are reading it right. your interpretation seems good. check out Mark Paul Grants. or ask him to put some pics on the forum for you. maybe pm him
If you intend to race in Western Australia, don't touch that chassis even the slightest! Other states and territories seem a little more relaxed on what modifications are allowed to the chassis. Take a look at others in your class, if they get away with it, go for it!
^ to elaborate, he removed the minimum amount neccesary to have the diff hit full bump against the upper surface of the chassis rail. Technically in compliance with the letter of the rule but he was forced into extreme 2wd because others didn't think so.
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In some engineering text books, the diff housing is deemed to be a suspension component therefore removing material for suspension should include the diff housing. I've seen several national running performance 2wds with substantial cut outs in chassis.
Where you intend to race does make a difference. I am keen to hear what you decide to do, if you do cut, do you get away with it.
removing part of the chassis to get more travel is not allowed
If I was inspecting the vehicle as described then my response would be the same
The main thing I wanted to accomplish is fitting coilovers to the front suspension which would intern result in more travel. The problem I have is that the top arm doesnt give enough room to fit the coilover assy through it. To fit another arm would result in the rail being in the way to allow any travel. The way I read the rule is that I can remove the minimum amount of the chassis material to allow the fitment of a new arm, being that it is a suspension component.
The reason I asked was that the ruling seemed to me to be very broad, and allowed the fitment of any suspension component one wants to fabricate.
I am also starting a performance 2wd build and having trouble interpreting the generalised regs.
my issue is with the body silhouette part, if I build a hilux and want to use a tacoma one peice front clip and bedsides do I have to now class the car as an extreme 2wd?
Also what does this mean: however this freedom does not extend to
I am also starting a performance 2wd build and having trouble interpreting the generalised regs.
my issue is with the body silhouette part, if I build a hilux and want to use a tacoma one peice front clip and bedsides do I have to now class the car as an extreme 2wd?
Also what does this mean: however this freedom does not extend to
steering (eg, tie rods).
I'm confused, do I have to run stock steering?
i interpret the last part to mean you cant touch the chassis to allow more room for tie rods. you can use aftermarket steering components but cant modify (notch etc) the chassis to make it work.
I am also starting a performance 2wd build and having trouble interpreting the generalised regs.
my issue is with the body silhouette part, if I build a hilux and want to use a tacoma one peice front clip and bedsides do I have to now class the car as an extreme 2wd?
Also what does this mean: however this freedom does not extend to
steering (eg, tie rods).
I'm confused, do I have to run stock steering?
i interpret the last part to mean you cant touch the chassis to allow more room for tie rods. you can use aftermarket steering components but cant modify (notch etc) the chassis to make it work.
someone correct me if im wrong
ok that makes sense.
Can anybody shine some light on the body silhouette question?
