Ring and Pinion

[Chip42]

legal. AND if you can find a way to pull out even more material, it's still legal. I'm wondering how far you can/will go with this. you always seem to take it to 11, and it's a lot of fun to watch.

[Ron Earp]

legal. AND if you can find a way to pull out even more material, it's still legal. I'm wondering how far you can/will go with this. you always seem to take it to 11, and it's a lot of fun to watch.

Sort of like this?



There are some R&Ps that just don't have much material to remove. The Z R180s don't have a lot of meat. I assume Jeff's does, but I've not seen one. Stangs don't have that problem, the R&P is quite hefty.

[JeffYoung]

Yes, mine looks basically like that (before cutting).

[Ron Earp]

These are done via electrical discharge machine. I have talked to some shops that machine them, but as Steve says, the hardness of these things is pretty high and machining would take a lot of time. Looks like the standard fare is to EDM them for weight reduction, stress relieve them via heating or peening, then to polish them to remove any imperfections.

[seckerich]

Sort of like this?



There are some R&Ps that just don't have much material to remove. The Z R180s don't have a lot of meat. I assume Jeff's does, but I've not seen one. Stangs don't have that problem, the R&P is quite hefty.

Lightening like this picture is done for mostly drag racing. The webs that stick out will foam the diff oil and burn one down pretty quick in road race conditions.

[Ron Earp]

Lightening like this picture is done for mostly drag racing. The webs that stick out will foam the diff oil and burn one down pretty quick in road race conditions.

I was just talking about that yesterday at the office. I think if it is lightened it should be radially all around with no paddles since the flats won't be doing the oil any favors. On the other hand, the videos with the transparent rear differential cover show a pretty dire situation with oil flying around in the housing.



This one looks pretty good:



And this one might be a bit extreme:


I also saw some that were castellated around each bolt hole. The oil would run into the castellations and I figured it'd get frothed up quickly. Hmm, Google images is failing me on that one.

[Rabbit07]

I would be lying if I told you I had never done that to a ring and pinion..........

Tex Racing will perform that service for you. Have them REM it when they are done also.

[Flyinglizard]

One of my old racer buds makes these,
http://www.ebay.com/itm/NASCAR-Gleas...2f0125&vxp=mtr