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-   Custom Chassis - Drive Line - Suspension - Wheels and Tires - LOWERING or STANDARD (http://www.ramforumz.com/forumdisplay.php?f=24)
-   -   weight vs. tire/wheel combo (http://www.ramforumz.com/showthread.php?t=115861)

BlackHemI 06-26-2012 07:50 AM

weight vs. tire/wheel combo
 
well let me start by saying i have the stock 20's that weigh about 39 lbs per and the stock 275/60/20 tires which ill say weight maybe 10 ish? so a total of 40-50 ish? not to to sure. i have a smaller rim and more meat on my tire compared to what i want which is 22" liquid metal blades which are roughly 40 lbs and nitto 420's 305/45/22 which im going to assume are 10 ish pounds.

so my question is, with a bigger rim/tire combo, even tho my weight is similar to my stock ones, will it effect my gas milage alot? my friend had 305/75/17 mud tires and he gets 10 mpg...the tire has more touching the ground(305) so will it hurt me much?

http://www.discounttire.com/dtcs/fin...2973&rc=TNWINT

http://www.discounttire.com/dtcs/fin...12973&sw=false

moparornocar72 06-26-2012 05:59 PM

anytime u have bigger tires or more rolling resistance there is a chance ur gas mileage will suffer. However the nitto tires are better then ur goodyears and probably weigh less then them also!

CdnoilRAM 06-26-2012 09:14 PM

You'll have a heavier rotating mass as the bulk of the wheel's weight is further away from the center hub. Your fuel mileage won't really suffer, but you'll notice a decrease in your brake effectivness. Oh, the 420S 305s weight just under 15lb a piece, I know, I run them myself on a set of D'vinci Ragno 22s. I would highly recommend a brake pad upgrade to help slow the heavier combo.

CHVYKLR 06-27-2012 01:26 AM

Quote:

Originally Posted by BlackHemI (Post 829374)
well let me start by saying i have the stock 20's that weigh about 39 lbs per and the stock 275/60/20 tires which ill say weight maybe 10 ish? so a total of 40-50 ish? not to to sure. i have a smaller rim and more meat on my tire compared to what i want which is 22" liquid metal blades which are roughly 40 lbs and nitto 420's 305/45/22 which im going to assume are 10 ish pounds.

so my question is, with a bigger rim/tire combo, even tho my weight is similar to my stock ones, will it effect my gas milage alot? my friend had 305/75/17 mud tires and he gets 10 mpg...the tire has more touching the ground(305) so will it hurt me much?

Quote:

Originally Posted by CdnoilRAM (Post 829794)
You'll have a heavier rotating mass as the bulk of the wheel's weight is further away from the center hub. Your fuel mileage won't really suffer, but you'll notice a decrease in your brake effectivness. Oh, the 420S 305s weight just under 15lb a piece, I know, I run them myself on a set of D'vinci Ragno 22s. I would highly recommend a brake pad upgrade to help slow the heavier combo.

not to be a jackass but are you guys serious about these tire weights? I'm currently researching what tires I should buy next and I think you guys are way off. our stock goodyears are in the low 40 lbs each for just the tire and the Nittos are in the mid 40s lbs each tire.

TheBlackHemi 06-27-2012 01:37 AM

They are right about nittos weighing a little less on the same size tire but yeah LOL the weight of the tires are far off (40lb range). My 305 45 22 nittos 420s weight 42.5 and so do the stock goodyears 275 60 20.

SS4Luck 06-27-2012 05:24 AM

x2 on the tire weights. My 26x4.5x15 skinnies are in the 12lb range lol

OP, you wont notice it as much as you think if you just drive the truck and dont sit there and focus on them

BlackHemI 06-27-2012 07:47 AM

Quote:

Originally Posted by CdnoilRAM (Post 829794)
You'll have a heavier rotating mass as the bulk of the wheel's weight is further away from the center hub. Your fuel mileage won't really suffer, but you'll notice a decrease in your brake effectivness. Oh, the 420S 305s weight just under 15lb a piece, I know, I run them myself on a set of D'vinci Ragno 22s. I would highly recommend a brake pad upgrade to help slow the heavier combo.

thats what i was thinking that the 305 nittos arent to to heavy, they are a thin tire and the size i want are 305/45/22, so maybe thatll help me get a figure from you guys. i have ebc green pads, would that help?

TheBlackHemi 06-27-2012 12:24 PM

Yeah that will help, like I said I have 22's with the nittos 305 45 22 tire and I have no problem stopping (stock brake pads). Beside the nittos will grip better than most tires out there so you should have a problem going with them at all.

BlackHemI 06-27-2012 12:43 PM

how much mpg did you notice you lossed when you switched from your stockers to your rims youve had

TheBlackHemi 06-27-2012 01:23 PM

I averaged about 16.9mpg before the wheels and that was 70% hwy 30% city...took a loss of about .5 -.7mpg but only ran maybe 1 1/2 tanks before adding headers and a 2/4 drop. I'm back up to about 17.3mpg after the other mods....theirs always a price to pay for better looks.


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