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View Full Version : Drag Racing yaris 15.969

ivanstepul
04-11-2015, 02:40 PM
I went to the drags a while ago and posted best time of 15.969
mods
manual trans
intake
header
midpipe(with stock muffler)
weight reduction ocd( i took off front license plate, folded mirrors, took off antenna, hubcaps, loose change, carpet, passenger seat)
428CobraJet
04-11-2015, 03:36 PM
That's good....i see you're running 17 in tires. Is the diameter different from original? Ie...change in gear ratio?
malibuguy
04-11-2015, 08:05 PM
Not bad. Mine with a soft launch runs 16.3s
CrankyOldMan
04-11-2015, 08:17 PM
I tried that a few times with my AutoX tires and almost broke 17. Must be my technique is crap, because that was after the supercharger install.
ivanstepul
04-11-2015, 10:02 PM
That's good....i see you're running 17 in tires. Is the diameter different from original? Ie...change in gear ratio?

actually when I ran the quarter I had 15 inch rims with stock size tires 15/65/185 but the tires were really nice they were the altimax rt tires
ivanstepul
04-11-2015, 10:07 PM
That's good....i see you're running 17 in tires. Is the diameter different from original? Ie...change in gear ratio?

no change in gear ratio stock trany
CrankyOldMan
04-11-2015, 10:20 PM
no change in gear ratio stock trany
If your tires are a different diameter than stock, it changes the effective great ratio. It's an easy way to get more torque without tearing your gearbox apart.
ivanstepul
04-11-2015, 10:29 PM
If your tires are a different diameter than stock, it changes the effective great ratio. It's an easy way to get more torque without tearing your gearbox apart.

I'm not a science expert but there is more torque if the rim/tire is a smaller diameter right?
CrankyOldMan
04-11-2015, 10:43 PM
I'm not a science expert but there is more torque if the rim/tire is a smaller diameter right?
Correct. You can always trade torque for speed by going larger, and vice versa.
Idahotom
04-13-2015, 08:51 AM
Very cool.

And I thought I had MY HB stripped down, I'm a slacker, leaving the carpet and front passenger seat in!
Astroman
04-13-2015, 10:37 AM
You missed this: OFFICIAL 1/4 mile time thread *TIMESLIPS REQUIRED* (http://www.yarisworld.com/forums/showthread.php?t=11021)

Manual or auto? Post your slip, any modifications, and what transmission.