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One of the projects I'm slowly gathering parts for is a late '90s paved oval nitro pan car. I'm building it to the specific specs outlined by RCCA for a certain track. That's all I'm willing to divulge at the moment. Anyway, the tires have to be BSR rubber capped ones in the following compounds...

Left Front: Red
Right Front: Blue
Left Rear: Narrow Green
Right Rear: Green

When looking at the offerings on eBay, the header cards have a letter preceding the compounds such as an R, L, or an S. I take it to mean right or left side, and standard which is due to the size. Right tires are a little bigger diameter than left tires, and standards are yet another size? Unfortunately, the article in RCCA gave the compounds but not the letters. So my question is, do I buy L tires for the left and R tires for the right, or do I run the S standards on all four corners?

I'm thinking I need the L and R ones for stagger purposes on a banked paved oval, and the S standard ones are for flat oval or road course.

S was Stock or Standard according to TRC.

This is information I got off another place but nobody has the answers like we do, so figured I'd ask. I might have to buy one of each to see what the difference is if I can't find out for sure. Although 2 years ago I bought the narrow green tire for the left rear which is marked L as I just checked it, so I should probably go with the L and R ones to match.

Updated my previous post to correct myself.

It really depends on how tight the corners are at a particular track as to how much stagger you'd want. If you already have lefts and rights, I'd just use them.

jcwrks wrote: ↑Sun Feb 02, 2025 8:37 pm S was Stock or Standard according to TRC.


TRC_radial.JPG

Very interesting, thanks for the updated info/pic! It's even a little more complicated than I anticipated.

scr8p wrote: ↑Tue Feb 04, 2025 10:33 am It really depends on how tight the corners are at a particular track as to how much stagger you'd want. If you already have lefts and rights, I'd just use them.

That's the plan now as there's no way of knowing what stagger they ran. That and the fact the correct compound tires new in the package are rare enough these days. Yeah, like mentioned above, I've only bought the left rear so far which was two years ago, and haven't seen another. So it's a get whatever the closest I can find is as far as they go.

Now the only hard part I have left is getting a period correct narrow stock car body. Preferably painted!