R U Serious!!?? Sears found tubes in my BFG Drag Radials!!!

[RED92LX50]

I'm sure you realize this, but - you are going from a 28" tire to a 26" tire. This will throw off your spedometer, and will affect your RPM's/MPH at shift points and at the end of the track (there are calcualtors in the "Analyzer" section of this site).

If you wanted a 26" tire with a wider tread, you could try a 275/50-15. Also, rim width plays a big role in the contact patch of the tire. If you are using the same rims (which it sounds like you are) I would guess that the 275's were very "bulgy" and the 235's will fit the rim better - otherwise, if the 275's fit the rim fine before, then the 235's will be way to narrow.

[Stang_ROTY]

Yes they were...and that bulge was part of the reason the rubber rubbed on the inside and outside (I guess the bulge could have been caused by the tubes as well). My rims were mounted on slicks at one time so they have the holes drilled in them still....and that is probably the reason that the tire shop put the tubes from the slicks into the bigger (older) BFG's. But what bothered me was that the shop never told me I had tubes in there...

But will there be a net effect on performance for better or worse (I guess I'll find out soon enough)? I was told by the Summit tech line that the performance shouldn't be sacrificed when I explained the situation before I bought them...and for the most part they've always been pretty dead-on about their recommendations. Even though the tires are holding pressure now I am thinking about putting the screws back in there because if I drop the pressure to about 16-17 psi at the track than I have a feeling they could leak.

Originally Posted by RED92LX50

I would guess that the 275's were very "bulgy" and the 235's will fit the rim better - otherwise, if the 275's fit the rim fine before, then the 235's will be way to narrow.