Quote:
Originally Posted by darcane
That's a large weight gain for a small increase in tire size. Are the smaller tires P (passenger tires) and the larger LT (Light Truck)? Or are both the same type?
I went from a P to an LT on my Silverado. Even though the size was the same and I could run higher tire pressures, the weight went up and fuel economy went down (even after they were broke in). Between those two options, the smaller is likely the better of the two.
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yes it is a large weight gain, although i just checked the specs and it depends on which tire brand we are looking at. The specs vary a significant amount. The above LT tire was actually 40 lbs. and the P tire was 27 lbs. The tires i was looking at were the Eldorado ZTR as they are available locally.
The Toyo Open Countrys P225 weigh 27.8 lbs. and the LT235 weigh 34.4 lbs. A much smaller difference. Though the P235 still weighs 34.2 lbs.!
Thanks for sharing your experience on the weight gain.
Quote:
Originally Posted by mcrews
Why guess?
What is the rpm at 50, 60, 65, 70? (for what you currently have)
then do the % change with the size not on the truck.
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I know at 55 mph i'm running at 2200 rpm in 5th gear. That is with the oddball 235's...