performance

charlesnash · December 14th, 2006, 09:19 PM

WILL 20'S AFFECT MY PERFORMANCE VS 18's

FireryDriver · December 14th, 2006, 10:09 PM

yes...you will loose alittle hp with the 20's

texas_mustang · December 14th, 2006, 10:32 PM

wrong. it will just make your car a little more slugish. how would 20s rob horsepower colin? horsepower is the displacement of your engine, rims cant make your engine create less power.

trueballerisme · December 15th, 2006, 03:25 AM

it adds weight. alotta people say different things. i dont know for sure. like really every1 says somethin different. i really want 20's but i hear it makes the acc. a little slower. and i hear u will loose a tiny bit of hp and torque

JohnnyZ · December 15th, 2006, 05:59 AM

you don't lose any power... NONE AT ALL.... You just add weight and rotating mass... you'll more than likely just spin the hell out of the tires.

Norse1974 · December 15th, 2006, 10:44 PM

OK fellas,Lets all look at this for a second alright?If putting light weight rims on your car add HP(By reducing the rotating mass)then why would'nt heavier rims rob HP????Just thought I would point that out to ya.I mean everything real high performance guys deal with is HP to weight ratio!Especially when the weight being dealt with is rotating weight!Hence the use of U/D pullies,aluminum drive shafts,light weight bogart wheels & aluminum flywheels & so on.Doing all this ADDS HP.To add weight to the rotating mass will REDUCE HP......Hope this helps.

trueballerisme · December 16th, 2006, 03:23 AM

thats cool. now i jus wanna figure out how big of a difference there is.

MustangMatt · December 16th, 2006, 09:58 AM

It's not that putting a lighter or smaller rim increases HP on your car. You have less mass which lets you use or feel more of the HP you already have, it doesn't add anything. Same goes for larger/heavier rims. It "robs" HP by having a larger mass, but doesn't actually take HP away, just feels that way.

Norse1974 · December 16th, 2006, 07:01 PM

Originally Posted by MustangMatt

It's not that putting a lighter or smaller rim increases HP on your car. You have less mass which lets you use or feel more of the HP you already have, it doesn't add anything. Same goes for larger/heavier rims. It "robs" HP by having a larger mass, but doesn't actually take HP away, just feels that way.

I never intended anyone to assume that I meant you will add HP at the flywheel when reducing rotating mass.You WILL gain HP at the rear wheels though.Proven by the aluminum drive shafts when installed & also proven by under drive pullies when installed as other things have.....To make it easy for everyone,,,you free up lost HP in rotating mass when converted to light weight stuff.The HP is already there just waiting to be unleashed from the heavy rotating assembly.Again I hope this helps...If only FORD would've done these things to begin with we would be way ahead of the game!

texas_mustang · December 16th, 2006, 09:27 PM

it creates RWHP. thats way different then hp. it just means that since the rims lighter, it doenst take as much power to move it. so your freeing up rwhp, not making it, just freeing it up.

less weight = more rwhp

trueballerisme · December 17th, 2006, 12:51 AM

its not a big difference and if u get nice tires it will make up for it.... some really sticky tires

Norse1974 · December 17th, 2006, 03:59 PM

Yeah Bro,thats what I just said in the last post.....

Originally Posted by texas_mustang

it creates RWHP. thats way different then hp. it just means that since the rims lighter, it doenst take as much power to move it. so your freeing up rwhp, not making it, just freeing it up.

less weight = more rwhp

Drgnracin72 · December 17th, 2006, 04:06 PM

1 pound of rotating mass is = to about 8 pounds if weight in the inside of the car. yes a bigger wheel weighs more therefor causing more rotational mass. also making a bigger wheel and tire height will tkae away from the gearing of the car. if you add 2 inchs of tires to a 4.10 gear ratio, it can make it like a 3.73

trueballerisme · December 17th, 2006, 04:47 PM

basically thats sayin if ur goin to go pro and do this for living and shit get 18 or lower. but if this is just a car ur gonna race sometime and wannna have fun and cool looks with it then get some 20's

00vabchgt · December 17th, 2006, 05:19 PM

ever wonder why drag racers run small wheels ( like 15's)? it's not cause they can't afford them, it's for two reasons. 1- smaller wheel= more sidewall on the tire which means that the tires will grip better on launch. 2- smaller wheel= less rotational mass which means that you will lose more hp to the rear wheels with a larger diameter wheel. smaller wheels won't "make" more hp, but will allow more hp to get to the ground. same idea behind lightweight driveshafts and flywheels.

trueballerisme · December 17th, 2006, 08:49 PM

i say jus get the 20's

December 14th, 2006, 09:19 PM	#1
charlesnash Newbie Join Date: Dec 2006 Posts: 21 iTrader: 0 reviews	performance WILL 20'S AFFECT MY PERFORMANCE VS 18's

December 14th, 2006, 10:09 PM	#2
FireryDriver Enthusiast Join Date: Sep 2006 Location: Austin, TX Posts: 543 iTrader: 0 reviews	yes...you will loose alittle hp with the 20's __________________ SLP Loud mouths SLP x-pipe 4.10 gears K&N intake X-Cal II custom tune

December 15th, 2006, 05:59 AM	#5
JohnnyZ Enthusiast 2011 5.0L Mustang GT 7.01@100mph Join Date: Nov 2006 Location: Wellington, Florida Posts: 660 iTrader: 0 reviews	you don't lose any power... NONE AT ALL.... You just add weight and rotating mass... you'll more than likely just spin the hell out of the tires. __________________ 2011 5.0L Mustang GT - Powered by HELLION / Tuned by BLOW BY RACING

December 16th, 2006, 09:58 AM	#8
MustangMatt Regular 2009 427R Roush 12.39 Join Date: Nov 2006 Location: Ormond Beach, Florida Posts: 113 iTrader: 0 reviews	It's not that putting a lighter or smaller rim increases HP on your car. You have less mass which lets you use or feel more of the HP you already have, it doesn't add anything. Same goes for larger/heavier rims. It "robs" HP by having a larger mass, but doesn't actually take HP away, just feels that way. __________________ 2009 427R Vert 3.73's, Roush Big Brake Kit

December 17th, 2006, 04:06 PM	#13
Drgnracin72 I Post Entirely Way Too Much Join Date: Jan 2006 Location: somewhere in oklahoma Posts: 10,638 iTrader: 2 reviews	1 pound of rotating mass is = to about 8 pounds if weight in the inside of the car. yes a bigger wheel weighs more therefor causing more rotational mass. also making a bigger wheel and tire height will tkae away from the gearing of the car. if you add 2 inchs of tires to a 4.10 gear ratio, it can make it like a 3.73 __________________ RIP ΜΟΛΩΝ ΛΑΒΕ Political Correctness is a doctrine, fostered by a delusional, illogical, liberal minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end. One Big Ass Mistake America SHEEPDOGS

December 14th, 2006, 10:32 PM	#3
texas_mustang Banned Join Date: Dec 2006 Posts: 2,077 iTrader: 0 reviews	wrong. it will just make your car a little more slugish. how would 20s rob horsepower colin? horsepower is the displacement of your engine, rims cant make your engine create less power.

December 15th, 2006, 03:25 AM	#4
trueballerisme Hardcore Enthusiast Join Date: Nov 2006 Posts: 1,352 iTrader: 0 reviews	it adds weight. alotta people say different things. i dont know for sure. like really every1 says somethin different. i really want 20's but i hear it makes the acc. a little slower. and i hear u will loose a tiny bit of hp and torque

December 15th, 2006, 10:44 PM	#6
Norse1974 Regular Join Date: Oct 2006 Posts: 275 iTrader: 0 reviews	OK fellas,Lets all look at this for a second alright?If putting light weight rims on your car add HP(By reducing the rotating mass)then why would'nt heavier rims rob HP????Just thought I would point that out to ya.I mean everything real high performance guys deal with is HP to weight ratio!Especially when the weight being dealt with is rotating weight!Hence the use of U/D pullies,aluminum drive shafts,light weight bogart wheels & aluminum flywheels & so on.Doing all this ADDS HP.To add weight to the rotating mass will REDUCE HP......Hope this helps.

December 16th, 2006, 03:23 AM	#7
trueballerisme Hardcore Enthusiast Join Date: Nov 2006 Posts: 1,352 iTrader: 0 reviews	thats cool. now i jus wanna figure out how big of a difference there is.

December 16th, 2006, 09:27 PM	#10
texas_mustang Banned Join Date: Dec 2006 Posts: 2,077 iTrader: 0 reviews	it creates RWHP. thats way different then hp. it just means that since the rims lighter, it doenst take as much power to move it. so your freeing up rwhp, not making it, just freeing it up. less weight = more rwhp

December 17th, 2006, 12:51 AM	#11
trueballerisme Hardcore Enthusiast Join Date: Nov 2006 Posts: 1,352 iTrader: 0 reviews	its not a big difference and if u get nice tires it will make up for it.... some really sticky tires

December 17th, 2006, 04:47 PM	#14
trueballerisme Hardcore Enthusiast Join Date: Nov 2006 Posts: 1,352 iTrader: 0 reviews	basically thats sayin if ur goin to go pro and do this for living and shit get 18 or lower. but if this is just a car ur gonna race sometime and wannna have fun and cool looks with it then get some 20's

December 17th, 2006, 08:49 PM	#16
trueballerisme Hardcore Enthusiast Join Date: Nov 2006 Posts: 1,352 iTrader: 0 reviews	i say jus get the 20's

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