How many of you Track your Kirkham?

[N2VENOM]

Originally Posted by 4pipes

I
I had to add a differential cooler because it got so hot it failed. It's a major pain to remove the diff. on a Kirkham. Other than that, it was quite reliable.

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Has anyone else had a problem with diff. failures kirkham or other?
What parts failed?
How much track time does it take to get the diff. oil too hot?

I go to Willow Springs in the summer with track temps 100+ degrees. Each run group is about 20-25 minutes.

[rodneym]

Hey Darren,

Is the reason you're asking have anything to do with a gauge that Tom is making for you?


CAN'T WAIT to see it completed!

Rodney

[RodKnock]

Originally Posted by N2VENOM

Has anyone else had a problem with diff. failures kirkham or other?

A friend of Rokndad in SoCal (Rokndad used to here on CC, but he sold his Cobra and got a Vette), had a Kirkham diff failure a year or two back. I'm not quite sure if the discussion actually made it to CC board, but I clearly remember the gentleman having to ship the diff back to Kirkham and getting a new diff. But I don't believe it was due to track use.

[4pipes]

Originally Posted by N2VENOM

Has anyone else had a problem with diff. failures kirkham or other?
What parts failed?
How much track time does it take to get the diff. oil too hot?

I go to Willow Springs in the summer with track temps 100+ degrees. Each run group is about 20-25 minutes.

It was a very hot day at Thunderhill, around 95 degrees......hotter on the track. At those temperatures, it doesn't take long for the gear oil to overheat. Over time the clutch plates wore and worse yet, the bearings started to fail. When I saw the parts, the bearing races were pretty well worn.

I think the failure occurred after I had put about 5000 mile on the car and maybe 2-3 track days.