|
|
|
|
|
|
|||||||
| Drag Racing Discuss Drag Racing here be it dirt or tarmac. Sponsored by Sydney Dragway. |
 |
|
|
Thread Tools | Display Modes |
24-02-2011, 03:56 PM
|
#1 | |||
|
AU DIE HARD
  
Join Date: Nov 2005
Location: Between 2nd and 5th gear
Posts: 5,073
 
|
Is there a formula to work out what the best tyre size is to be able to cross the line at a particular amount of revs ?
Reason being I am about the purchase some new MTs on 15s and currently crossing at 6000 ish would like to drop it back to 5800 if possible ,Diff is 4.11s if that helps  Thanks in advance Whoosha
__________________
........Age and treachery will ALWAYS overcome youth and skill....... CORTINA 250 2V POWER soon to be AUXR8 Windsor pwrd .............WINDSOR WARLORD WHO CARRIES THE CLEVO MAFIA AND BROKEN BOSSES... .........................  .........................Quote:
|
|||
|
|
|
24-02-2011, 04:30 PM
|
#2 | ||
|
Tribal Elder
Join Date: Jul 2005
Location: Yarrambat
Posts: 2,278
|
There is calculators on the net somewhere, or just go 1" taller. You could also hot it up a tad, and be able to rev to 6500 !!!
Look up www.race-cars.net, thay have calculators Last edited by jcxr; 24-02-2011 at 04:35 PM. |
||
|
|
|
|
24-02-2011, 06:41 PM
|
#3 | ||
|
FF.Com.Au Hardcore
Join Date: Aug 2010
Location: NQ
Posts: 1,781
|
This one has what your after plus some other good ones.
http://www.tciauto.com/Pages/418/calculators.aspx There are formulas in the Auto Math Handbook but I think the calculators are quicker and easier to use |
||
|
|
|
|
24-02-2011, 09:34 PM
|
#4 | ||
|
Regular Member
Join Date: May 2006
Location: Perth
Posts: 421
|
calculators are ok for a manual but not if you have an auto with stall. Its best to supply your MPH, ET, RPM, diff gears, weight etc and ask around at the drags but it will come down to your stall setup if you have one.. Cheers
__________________
. . 2004 XR6 turbo, 429rwhp 2001 AU XR8 ute, 220rwhp.. lol .. |
||
|
|
|
|
24-02-2011, 11:48 PM
|
#5 | ||
|
FF.Com.Au Hardcore
Join Date: Jan 2005
Location: Working, chasing after my daughter and working
Posts: 3,407
|
Hey Woosha pm me your email addres and I can send you a speed calculator, works a treat for anything from working out gearing to tyre size,mph, revs etc etc.
Wade |
||
|
|
|
|
25-02-2011, 09:45 AM
|
#6 | |||
|
FF.Com.Au Hardcore
Join Date: Aug 2010
Location: NQ
Posts: 1,781
|
Quote:
Bruce |
|||
|
|
|
|
25-02-2011, 08:18 PM
|
#7 | |||
|
AU DIE HARD
Join Date: Nov 2005
Location: Between 2nd and 5th gear
Posts: 5,073
|
Thanks gang Im on it
__________________
........Age and treachery will ALWAYS overcome youth and skill....... CORTINA 250 2V POWER soon to be AUXR8 Windsor pwrd .............WINDSOR WARLORD WHO CARRIES THE CLEVO MAFIA AND BROKEN BOSSES... ......................... .........................Quote:
|
|||
|
|
|
Tyre size ?
Linear Mode
