CCW wheel weights
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
There is an old saying:
"taking off each 100 lbs of your car or body fat is like adding 10 HP. " weather this is true or not I have no Idea.
Also smaller diameter wheels are faster. One local shop did a few before and after dynos on stock vette wheels then with 19" wheels. the 19" wheels were 12-15 HP LESS do to the size. Big may look cool , but for get the HP and acceleration.
"taking off each 100 lbs of your car or body fat is like adding 10 HP. " weather this is true or not I have no Idea.
Also smaller diameter wheels are faster. One local shop did a few before and after dynos on stock vette wheels then with 19" wheels. the 19" wheels were 12-15 HP LESS do to the size. Big may look cool , but for get the HP and acceleration.
Thread Starter
Safety Car
Joined: Aug 2004
Posts: 4,734
Likes: 232
From: Youngstown Ohio
Originally Posted by AU N EGL
There is an old saying:
"taking off each 100 lbs of your car or body fat is like adding 10 HP. " weather this is true or not I have no Idea.
Also smaller diameter wheels are faster. One local shop did a few before and after dynos on stock vette wheels then with 19" wheels. the 19" wheels were 12-15 HP LESS do to the size. Big may look cool , but for get the HP and acceleration.
"taking off each 100 lbs of your car or body fat is like adding 10 HP. " weather this is true or not I have no Idea.
Also smaller diameter wheels are faster. One local shop did a few before and after dynos on stock vette wheels then with 19" wheels. the 19" wheels were 12-15 HP LESS do to the size. Big may look cool , but for get the HP and acceleration.
Thanks for the reply and the info. I don't know about the 100 pound rule that you outlined but there are a few factors to consider when changing wheels and tires, IMHO. Weight is one issue which is what this thread was all about. Next is overall rolling diameter. This is not only a function of wheel size, 18 vs 19, but also the tire that has been mounted. Reducing sidewall profile from say a 40 to a 35 can compensate for the fact that a larger wheel diameter is being used. It would be interesting to know if those dyno numbers were the result of weight, taller tire or a combination of both.
Thanks agian,
Darion
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
Originally Posted by Darion
It would be interesting to know if those dyno numbers were the result of weight, taller tire or a combination of both.
Thanks agian,
Darion
Thanks agian,
Darion
Depending on the rim size and width of tire you wish to use would determine the profile.
I use 18" all around. My street wheels are 18x10f with 275/35x18 Mich PS 18x11r with 335/30x18
Track 18x11f and 18x12 rear with 25.5x11.5x18 ( fricken american sizes ) or about 310/33x 18.
I have also used 285/30x18 fronts on the track.
Dont go larger then a 40 series on the front. 35 series front and 30 series would be my choice for rears. Of course this all depends on the width you are looking at and what tires you can get.
Race Director
Joined: Oct 1999
Posts: 17,708
Likes: 1,218
From: Phila PA, Bonita Springs FL
[QUOTE=AU N EGL]Ohhhh I think there is a big difference in acceleration do to the un-sprung weight difference.
Maybe so, but not with 10 lbs difference....
Our friend Darion is posting about the weight difference in street CCW rims...
For you other questions..
You can't have the rims , because they were just sold to CCONKLIN1.
PM Chris if you want them.. I don't think he even put them on his car yet, as he might be having some engine issues....Worth a shot..
I never use those at the track.. drag radials only...
And yes, the head unit is a Kenwood..
I've had it since Dec 1999 when I got my car..
I like it alot.. Good luck to you.
Ellis
Maybe so, but not with 10 lbs difference....
Our friend Darion is posting about the weight difference in street CCW rims...
For you other questions..
You can't have the rims , because they were just sold to CCONKLIN1.
PM Chris if you want them.. I don't think he even put them on his car yet, as he might be having some engine issues....Worth a shot..
I never use those at the track.. drag radials only...
And yes, the head unit is a Kenwood..
I've had it since Dec 1999 when I got my car..
I like it alot.. Good luck to you.
Ellis
Last edited by YO-EL; May 24, 2005 at 07:01 PM.
Le Mans Master
Joined: Jul 2000
Posts: 7,634
Likes: 326
From: Greenville SC
10lbs is something like 4x that amount when it is unsprung weight. So in effect it would be something like 160 lbs. on the whole car and it would affect acceleration, stopping, and suspension performance.
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
Le Mans Master
Joined: Aug 2000
Posts: 5,294
Likes: 2
From: Suffolk, Long Island NY
Originally Posted by 95wht6spd
10lbs is something like 4x that amount when it is unsprung weight. So in effect it would be something like 160 lbs. on the whole car and it would affect acceleration, stopping, and suspension performance.
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