when you put on your 18s...acceleration?
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Joined: Jun 2002
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From: Asia
Originally posted by DamnAccord
Ok, so if I get the 18s, what should the offset be? The car would be lowered around 1.5 inches and it's a sedan. And I guess the tires I would get are 225/40?
Ok, so if I get the 18s, what should the offset be? The car would be lowered around 1.5 inches and it's a sedan. And I guess the tires I would get are 225/40?
215/40
225/35
225/40
depends...
A little slow,...so ??
Joined: Jun 2002
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From: Wisconsin
hey guys,
i am just wondering about the rims weight that you guys talking about, let say it 5-10 lb heavier than some light weight wheels, then i read somewhere on this forum that approx 21 lbs is equal to 1 hp. You can not really feel the difference if you car gain 5hp even, right ??
so why do we have to worry so much about the weight.
please clarify it ,,,I appreciate your help
i am just wondering about the rims weight that you guys talking about, let say it 5-10 lb heavier than some light weight wheels, then i read somewhere on this forum that approx 21 lbs is equal to 1 hp. You can not really feel the difference if you car gain 5hp even, right ??
so why do we have to worry so much about the weight.
please clarify it ,,,I appreciate your help
Senior Member
Joined: Jun 2002
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From: Asia
Originally posted by EliteAccord
But then I wouldn't want the lightweight to compromise the construction and quality of the rim cause safety is more important then hp. Can't be driving down the freeway at 70 mph and running over a cockroach and having the rim split into two cause its so light that it is poorly made.
Chris
But then I wouldn't want the lightweight to compromise the construction and quality of the rim cause safety is more important then hp. Can't be driving down the freeway at 70 mph and running over a cockroach and having the rim split into two cause its so light that it is poorly made.
Chris
I'd rather live longer although slower
anyway, I trying to decide whether I should change my wheels to lighter ones.
some ppl say get forged wheels, but are light forged wheels always strong or are there also bad quality forged wheels ?
Faster than your Geo
Joined: Jun 2002
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Originally posted by JonHsiung
For our assumed 200 hp crank and an assumed 160 hp (and our torque numbers) to the wheels, what's the "horsepower per pound" for our rims? Anybody a physics major?
For our assumed 200 hp crank and an assumed 160 hp (and our torque numbers) to the wheels, what's the "horsepower per pound" for our rims? Anybody a physics major?
Really this term can be expressed as a ratio multiplied by a constant:
(Stock Weight)
------------------------- * (Stock HP) = HP with new Rims
(Weight with Rims)
The units for the weights cancel (lbs/lbs) and you get a new constant multiplied by your stock horsepower. Some coefficient based on the change in weight of your vehicle.
If you wanted to figure out how many HP per pound you traded away for your new rims:
dHP change in HP (stock HP - New HP)
------ = ------------------------------------------- = HP per lb
dW change in Weight (stock - New)
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Joined: Jun 2002
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From: TO/KW/Canada
Originally posted by EliteAccord
225/40/18 might not rub but 225/45/18 might but it all depends on offset. He should get a lower offset like +38 or +40
225/40/18 might not rub but 225/45/18 might but it all depends on offset. He should get a lower offset like +38 or +40
First of all, you need a rim with at least a 45mm offset. Greater than 45mm is ideal... The stock rims are 55mm offset. I know peeps with close to 50mm offset and 225 width tire that doesn't run on the inside... rubbing on the outside is the most predominant problem...
The increased negative camber will help tuck at the top, but increased negative camber will kill your tires...
The only time the size of the overall diameter of the tire/wheel combo affects the rubbing is when the drop isn't that severe and you have an offset less than 45mm rims, then you might be able to get away with it, but when you have 3 heavy ass adults in the back, then it's gonna rub either way...
I should know, I'm dumped 3+ inches all around on teins, and my CP35s have an offset of 40mm... and I just barely rub...
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