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Thread: 2017 Dyno results/upgrades

  1. #31
    Join Date
    Apr 2002
    Location
    Madison, Ohio
    Posts
    17,489
    You have to do the run with street tires. This is also why you have to calibrate the speed sensor against your GPS. You need instantaneous speed and full load at the proper speed. With 1/4 mile slips 1) they are often wrong), 2) it's a calculated average speed, not instantaneous, and 3) race tires grow quite a bit at 100+ mph.
    Quote Originally Posted by Miller View Post
    Ya thats why i tape mine down. People think its bc i dont have a moonroof seal (which is true) but its really to keep my roof from ripping off .
    Email me here.

  2. #32
    Join Date
    Apr 2002
    Location
    St. Louis, MO
    Posts
    6,312
    Quote Originally Posted by XR7 Dave View Post
    You have to do the run with street tires. This is also why you have to calibrate the speed sensor against your GPS. You need instantaneous speed and full load at the proper speed. With 1/4 mile slips 1) they are often wrong), 2) it's a calculated average speed, not instantaneous, and 3) race tires grow quite a bit at 100+ mph.
    I'm aware of all of those factors, but knew it would be closer than the 103 mph that BE was showing. Went on a cruise yesterday and my BE reads a full 10% less mph than GPS mph (my speedometer was somewhere in between). Now I just need to figure out where to modify BE.
    Last edited by Kurt K; 04-24-2017 at 10:53 AM.
    Kurt K (e-mail)
    SCCoA Member #: 443
    '92 SC AOD -- 11.521s @ 116.748mph, 2.0 AR power
    . . . . . . . . . -- 13.547s @ 101.01 mph, only w/ bolt-ons
    '95 SC 5spd -- All Stock, except 17" Simmons wheels.
    '90 SC 35th Anny 5spd -- 3rd owner, 16k miles
    2 '89 XR7 5spd's -- on their way out, really!

  3. #33
    Join Date
    Aug 2005
    Location
    Paoli Indiana
    Posts
    4,389
    I've been wanting to get to the track. It rains everytime the track is open lol I really need to see
    where I am at. I hope my newfound power will squeeze a low 12 out of it. I am wanting to run
    the 12.0 Index at the street car takeover on the 7th
    93 SC Red Auto 111k
    2013 Shootout Bracket ET First Place
    2015 Shootout Car Show Honerable Mention
    2016 Shootout Mod-1 First Place
    4.2, MPX, 3.73s Built AOD
    12.70@107.2
    Coming soon 11.xxx

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