Help! Front Runner Tire Size
#1206134
03/29/12 08:42 PM
03/29/12 08:42 PM
|
Joined: Jan 2012
Posts: 65
Harrison, NY
Classic Car Guy
OP
member
|
OP
member
Joined: Jan 2012
Posts: 65
Harrison, NY
|
Hi Guy's....
How does the front Tire size affect the ET and or MPH? Example.. I had 27" M/T 4 ply street type skinny and the Moroso 26" track only skinny? Does the height affect the roll out, ET or MPH? Not sure what to purchase. Thanks, Joe
Some of the Ride's......
58 Ply Fury "Christine" Admin of: [url=http://www.ChristineCarClub.com]www.ChristineCarClub.com[/url
65 Ply Satellite [Email]9.43@141[/Email]
64 50th anniv 880 Custom 2dht 383 All Pwr.
I'd Rather Be Hated For The Person I Am, Than Loved For The Person I Am Not!!!
|
|
|
Re: Help! Front Runner Tire Size
[Re: Classic Car Guy]
#1206136
03/30/12 08:59 AM
03/30/12 08:59 AM
|
Joined: Jan 2003
Posts: 13,362
Marion, South Carolina [><]
an8sec70cuda
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 13,362
Marion, South Carolina [><]
|
Shorter tire = quicker reaction time.
Taller tire = quicker ET due to less rolling resistance, supposedly.
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
|
|
|
Re: Help! Front Runner Tire Size
[Re: an8sec70cuda]
#1206137
03/30/12 10:08 AM
03/30/12 10:08 AM
|
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Mr.Yuck
Not enough dumb comments...yet
|
Not enough dumb comments...yet
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
|
Quote:
Shorter tire = quicker reaction time.
Taller tire = quicker ET due to less rolling resistance, supposedly.
I'd think i'd be more of a RT change than ET change...
|
|
|
Re: Help! Front Runner Tire Size
[Re: Mr.Yuck]
#1206138
03/30/12 10:16 AM
03/30/12 10:16 AM
|
Joined: Jan 2003
Posts: 13,362
Marion, South Carolina [><]
an8sec70cuda
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 13,362
Marion, South Carolina [><]
|
Quote:
Quote:
Shorter tire = quicker reaction time.
Taller tire = quicker ET due to less rolling resistance, supposedly.
I'd think i'd be more of a RT change than ET change...
I think so too, hence my "supposedly" remark. I was just pointing out the general rule.
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
|
|
|
Re: Help! Front Runner Tire Size
[Re: pengwin]
#1206140
03/30/12 01:28 PM
03/30/12 01:28 PM
|
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
|
Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
|
A taller tire will result in longer roll out on the lights giving you a better rolling start which will end up in a quick ET.... but if your concern is the RT then the short tire will break the beams sooner 
|
|
|
|
|
One inch is not much but it should be measurable 
I have ran all the way from 22 inch front tall tires to 31 inch tall and most sizes in between 
If your going to bracket race it or class race the car on a sportmans tree(.500 seconds between each light) I would use the tallest tire you can fit on the car 
If your going to run on a Pro Tree(.400) and use electronics it doesn't matter what size front tire is on the car, you can dial in the delay box for the reaction times 
