I'm Gonna Build A Dragster!

[bob w]

Originally Posted by Bamamav

Sure he can. I enlarged the center hole on a pair of steel wheels with a 4" grinder. Took a minute, but just kept grinding and test fitting until it slid on all the way.
Aluminum might be harder to grind because it's so soft and will load up a grindstone quick.

I have to increase the hole diameter by almost 3/4" inch. The aluminum is a half inch thick. Spent 2 hours with an aluminum cutting burr in a die grinder and made it about a quarter of the way. It just isn't worth it.

[zzrodder]

How about putting a wood or aluminum plug in the center and using a hole saw of the right dia.?

[Old Iron]

Use a deburr bit in a die grinder with as heavy spiral cutting serration as you can find. It'll cut like butter.

[bob w]

Okay, you guys shamed me into trying again. I made a drill guide out of 1/4" by 5" plate that bolts to three lug nut holes. Bought a 3 1/2" hole saw blade and commenced to drill. The batteries don't want to turn that large diameter blade very long. I get lots of rest breaks. It's going to work though.

The pilot hole is centered but the hole saw wants to hunt off axis a bit.

[soltz]

It’ll get there
‘’’’

[Bamamav]

I didn't think about using a hole saw, great idea. What you need is a good 1/2" corded drill to run it though. My old one took a dump, so I picked up one at Harbor Freight. I'll have to say I was impressed. I didn't really like their electric stuff before, but this one seems to be as good or better than the Black and Decker it replaced, time will tell. I use my battery drill a lot, but for big jobs you just can't beat a good plug in tool.

[Goldcar1967]

[bob w]

We ran at Brainerd this weekend. Set a personal best of 11.28. Next is the Fall-Out at Rock Falls, Wi. in mid-September. This winter the digger will get a beauty makeover. I'll also try to find a few more ponies. Would love to get in the 10's. Last pic from left to right; me, Dave and Jerry
Hard to believe this thread has had over 650,000 views. Thank you everyone.

[Old Iron]

Instead of zoomies run the 6 into two and run them in the order they fire in.
Should be good for 1 ta 2 tenths

[smallfoot]

Congrats on the PB!