Capital Driving Club Discussion Forum

My "new" HCHDDD roll bar will arrive tonight. I know a couple people at the CDC have installed these bars and I was wondering if anyone still has the foot long drill bit I need to mount the bar.

I have read the miata.net installation instructions, but if anyone else has any tips I would appreciate it. I am expecting the install to take 8+ hours based on others comments.


Thanks for the help

I installed mine w/o using a special drillbit. I can't remember exactly how though. I think I used an angle drill with an 1/8" bit and drilled down through the top, then finished by drilling UP from below. It's a pretty straightforward install. Most difficult part was trimming the plastic interior panels so they look and fit nice afterwards.

I've got a 12" bit from my installs (I think we talked at the bowie autox last weekend?). For the rear bars I'd recommend drilling the slotted hole from the top, and then bolting on the backing plate and drilling the rest of the holes from underneath the car, using the backing plate as a guide. Otherwise you can get some alignment issues with some of the holes ending up inside of the frame rail that's right next to where the backing plate mounts.

milkmandan - Yeah, I did talk with you about the install. Are you planning on going to the 29th event ... maybe I could borrow the drill bit then

I am in the rockville area, if you are not too far I can pick it up as well. Idealy I would have the bar installed ASAP.

Thanks for all the help

I'm down in Alexandria, but I'll be at the autox on the 29th. Just send me a PM beforehand and I'll bring it.