South Australian AC Cobra manufacturer - ICCARS

[DaveW]

Hi Will, or others,

Whats the purpose of the adjustable axle control rod brackets in this pic?. i.e the ladder of location holes,
I've seen this on some drag cars etc, but don't know why its there.

regards
Dave

[ICCARS]

Originally Posted by DaveW

Hi Will, or others,

Whats the purpose of the adjustable axle control rod brackets in this pic?. i.e the ladder of location holes,
I've seen this on some drag cars etc, but don't know why its there.

regards
Dave

Hey Dave, the reason for the series of holes is to allow for adjustment of the track rods in order to get the diff pinion to arc in perfect relationship to the spicer yolk on the tailshaft, i.e. think of a pendulum with it's two connecting rods tapered back up to the pivot centre and then imagine the base of the pendulum swinging in relation to the pivot centre - this is what you want your diff to do so that it does not actuate perpendicular to the spicer yolk (or transmission output) as that will load up the universal joints and create issues with the driveline function. The hole positions allows you to alter the top and bottom track rod arc points to the diff mounting brackets, thereby giving you the ability to set the diff pinion to the optimum pivot centre position.
Hope that explains it OK

P.S. I'm sure Deano could explain it better than me as he sets up sprint cars suspension all the time, but that's my best explanation

Regards
Wil

[750hp]

Originally Posted by DaveW

Hi Will, or others,

Whats the purpose of the adjustable axle control rod brackets in this pic?. i.e the ladder of location holes,
I've seen this on some drag cars etc, but don't know why its there.

For more detail about the effect of adjustments to these, you could google:
4 link instant center
and you'll have access to lots of info.

[ICCARS]

Attachment 28109ICCARS can also modify the Boss engines to fit into the AC Cobra replicas, they look nice sitting in there and provide great performance and a great sound