28x10.5x15 ET Drag?
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On The Tree
Joined: Mar 2003
Posts: 173
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From: OKC, OK
28x10.5x15 ET Drag? Would a 28x10.5x15 ET Drag work ok on my car?
I have a SS3800 converter and can not get traction with 275x50x15 BFG DRs and was looking at getting ET Drags. Come Christmas I will be getting 3.73 gears but I am only running 3.23s right now.
I was wanting to get the 28s not the 26s, because I was told the 28s will pick up my mph.
I am pulling low 1.8 60's right now, but I am doing everything I can to keep the a$$ to the ground.
I have a SS3800 converter and can not get traction with 275x50x15 BFG DRs and was looking at getting ET Drags. Come Christmas I will be getting 3.73 gears but I am only running 3.23s right now.
I was wanting to get the 28s not the 26s, because I was told the 28s will pick up my mph.
I am pulling low 1.8 60's right now, but I am doing everything I can to keep the a$$ to the ground.
Re: 28x10.5x15 ET Drag? i think you might want to delete this and put it in the Wheels/Tire forum or the drag racing forum. But, in all honesty, I think you'll get the traction you are looking for by just going with the e.t. drag. Even with the 3.73's, I'd think that a 26x10.5x15 e.t. drag would work great. The 28's would basically give you a lower numerically rear gearing, basically like a 3.55 or something close to that, not 100% sure. BUT, it would have a larger contact patch to get traction. are you stock motor, cam, head/cam, stroker??? I still think a 26" is all you would need.
Chris
Chris
Re: 28x10.5x15 ET Drag? Whoever told you a 28 will help your MPH was wrong.
A taller tire will HURT your MPH..a 26" tire will trap a couple MPH more than a 28" will on a typical LS1 regardless of mods.
A taller tire will HURT your MPH..a 26" tire will trap a couple MPH more than a 28" will on a typical LS1 regardless of mods.
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TECH Senior Member
Joined: Nov 2001
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From: Troy, AL
Re: 28x10.5x15 ET Drag? "I was wanting to get the 28s not the 26s, because I was told the 28s will pick up my mph."
Uhhh, no. It'll bring your MPH DOWN a little, not up. It, being taller, gives it a gearing disadvantage compared to a shorter tire. Also, it's heavier and harder to accelerate.
Uhhh, no. It'll bring your MPH DOWN a little, not up. It, being taller, gives it a gearing disadvantage compared to a shorter tire. Also, it's heavier and harder to accelerate.
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Re: 28x10.5x15 ET Drag? I definitely wouldnt try out 28" tires. They weigh more and give you a gearing disadvantage. I think you'd be suprised how easily the 26x10.5x15 ET Drags will hook. They dont even compare to DRs. You should be able to hook pretty good on 26x10.5x15 ET Streets even. Low 1.6s should be doable with stock suspension. Also, I've heard the Hoosier slicks hook better than the MT tires, so you may want to try those.
Re: 28x10.5x15 ET Drag? Uhhh, no. It'll bring your MPH DOWN a little, not up.
Re: 28x10.5x15 ET Drag? A taller tire will increase top speed MPH, but when going to a 28" tall tire on a 3.23 geared car, you did the exact same as keeping the 26" tall tire and going to a 2.95-3.00 gear. Because of this, you will not accelerate as quickly.
A taller tire is harder to turn over, since there is more tire.
I personally would go to a 26" tall ET Drag.
A taller tire is harder to turn over, since there is more tire.
I personally would go to a 26" tall ET Drag.
Re: 28x10.5x15 ET Drag? Every 1" you add to you tire height, changes your gearing by about 0.1:1. So if you had 3.42 gears with 26" tall tires and then switched to 28"ers, you'd change your effective gear ratio to about 3.22:1
TECH Senior Member
Joined: Nov 2001
Posts: 9,246
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From: Troy, AL
Re: 28x10.5x15 ET Drag? I already explained it when I said...
"It, being taller, gives it a gearing disadvantage compared to a shorter tire. Also, it's heavier and harder to accelerate.
True, at a given RPM you will be going faster (same as with numerically lower gears) but, you will not be turning the same RPM across the line. You'll turn less with the taller tire. The MPH loss comes from the gearing disadvantage (like with numerically lower gears you will not accelerate as quickly.) It also comes from the tire being heavier and harder to accelerate.
Taller tires are GREAT when you're geared correctly for them and you actually need the extra traction provided by them.
"It, being taller, gives it a gearing disadvantage compared to a shorter tire. Also, it's heavier and harder to accelerate.
True, at a given RPM you will be going faster (same as with numerically lower gears) but, you will not be turning the same RPM across the line. You'll turn less with the taller tire. The MPH loss comes from the gearing disadvantage (like with numerically lower gears you will not accelerate as quickly.) It also comes from the tire being heavier and harder to accelerate.
Taller tires are GREAT when you're geared correctly for them and you actually need the extra traction provided by them.
Re: 28x10.5x15 ET Drag?
Taller tires are GREAT when you're geared correctly for them and you actually need the extra traction provided by them.
