Fairmont U/S Build AKA Craigslist Racer

[Shadylane]

Originally Posted by Tony Corley

Cool build. Reading this, I have a question. Why would you want to run such a large tire on a low hp application? I am just comparing to the cars I have ran, (not stock eliminator). I have had consistent 1.29 - 1.30 60 ft times in the past on a 10.5 x 26 tire, with 600 hp and a 5 speed. I realize the 10" tire is not legal for stock, but just seems something under 9" and around 26" diameter would be more than sufficient, and free up some ET by not having to carry the extra tire down the track. I'm sure there is a reason most of the Stock Eliminator guys like the big tire, so that's why I'm asking.

To be honest not everyone in lower stock classes runs such a big tire. I talked with a guy that races in U/SA that uses a 26X8.5 and does just fine.

Another racer in the same class (same kind of car) uses a 30X9 and is really fast.

Here is my reasoning, right or wrong. The low gear in the transmission is 3:19. Even with soft lock clutches I may need the tire. There is a bigger selection of 9 inch tires especially in 29.5.

I could be all wrong on this and may end up using a smaller tire. Your right, common sense would tell you a smaller tire has less un-sprung weight and rotating weight.