Results 1 to 10 of 46

Thread: Austin area dyno day

Hybrid View

  1. #1
    Senior Member Rookie
    Join Date
    Mar 2006
    Location
    Austin, TX
    Posts
    135
    Quote Originally Posted by ShadowBolt View Post
    If I can get mine going we would have five.
    Morgan
    Casey
    Nick
    Chuck
    JJ
    I can be there early. And I was the last to post, and know I have to check timing, so I can wait to dyno if the time doesn't allow. If I get the annual done I can dyno during the next week.

    Chuck
    CMC#14

  2. #2
    Senior Member Rookie
    Join Date
    Apr 2008
    Location
    San Antonio, TX
    Posts
    116
    Sorry folks, but I won't be able to attend the dyno day. A work thing came up and I can't make it up to Austin Saturday morning. Thanks and have fun guys!!!
    Nick Valentin

  3. #3
    Senior Member Carroll Shelby ShadowBolt's Avatar
    Join Date
    Oct 2006
    Location
    Georgetown, TEXAS
    Posts
    4,268
    Blog Entries
    2
    Anyone in the Austin area have four extra Mustang wheels with tires on them I could borrow for the dyno day? I have no wheels right now.

    JJ

  4. #4
    Senior Member Grass-Passer Casey_SS's Avatar
    Join Date
    Feb 2010
    Location
    Austin
    Posts
    402
    I have spare F-body wheels w/ tires mounted but they won't do you much good without adapters. They're 5x120.7mm bolt pattern. I think Mustangs are 5x114.3. If you can get your hands on the right adapter, you're welcome to use 'em.
    2012 NASA-TX American Iron Champ
    AI #29

  5. #5
    Senior Member Rookie
    Join Date
    Mar 2006
    Location
    Austin, TX
    Posts
    135
    Quote Originally Posted by ShadowBolt View Post
    Anyone in the Austin area have four extra Mustang wheels with tires on them I could borrow for the dyno day? I have no wheels right now.

    JJ
    I have spare 16" 5 lug wheels, some with RA1s that are good enough to dyno. For the front I have two '98 Cobra wheels with tires good enough to roll around on, will clear PBR or Brembo brakes not sure about other big brakes.

    Let me know if you need them. Could meet you Friday PM.

    Chuck
    CMC#14

  6. #6
    Senior Member Carroll Shelby ShadowBolt's Avatar
    Join Date
    Oct 2006
    Location
    Georgetown, TEXAS
    Posts
    4,268
    Blog Entries
    2
    Quote Originally Posted by Chuck View Post
    I have spare 16" 5 lug wheels, some with RA1s that are good enough to dyno. For the front I have two '98 Cobra wheels with tires good enough to roll around on, will clear PBR or Brembo brakes not sure about other big brakes.

    Let me know if you need them. Could meet you Friday PM.

    Chuck
    CMC#14
    Thanks Chuck!

    Call me on my cell when you can. 512-658-7640. I would like to use the wheels if you don't mind.


    Jerry

  7. #7
    Senior Member Carroll Shelby RichardP's Avatar
    Join Date
    Mar 2006
    Location
    Friendswood, TX
    Posts
    1,198
    Just a reminder that wheels with a significantly different rotational inertia than what you actually plan to run will show up in your dyno numbers...


    Richard P.

  8. #8
    Senior Member Carroll Shelby Adam Ginsberg's Avatar
    Join Date
    Mar 2006
    Location
    Here, there, everywhere.....
    Posts
    1,199
    Quote Originally Posted by RichardP View Post
    Just a reminder that wheels with a significantly different rotational inertia than what you actually plan to run will show up in your dyno numbers...
    Yes, it will.
    Adam G.
    CMC #5
    2009 California Pony Car Cup CMC Champion
    2009 SoCal CMC Champion (Team Hollywood)
    2012 Kona Blue Metallic Boss 302 #1710
    Buy a hooptie, then race that mofo!
    NASA SoCal Race Director

  9. #9
    Senior Member Carroll Shelby ShadowBolt's Avatar
    Join Date
    Oct 2006
    Location
    Georgetown, TEXAS
    Posts
    4,268
    Blog Entries
    2
    Quote Originally Posted by RichardP View Post
    Just a reminder that wheels with a significantly different rotational inertia than what you actually plan to run will show up in your dyno numbers...


    Richard P.

    By how much Richard? If the wheel and tire is lighter than what we are going to run would I show more or less power with the heavier wheel/tire combo? Even maxed out with timing and everything my 4.6 does not make the numbers.

    JJ

  10. #10
    Senior Member Rookie
    Join Date
    Mar 2006
    Location
    Austin, TX
    Posts
    135
    Quote Originally Posted by RichardP View Post
    Just a reminder that wheels with a significantly different rotational inertia than what you actually plan to run will show up in your dyno numbers...


    Richard P.
    Thanks for the tech. Richard. Looked up some Toyo RA1 tire data:
    275/40R17 is 29# and is 25.7" tall.
    255/50R16 is 27# and 26.1" tall.

    So the normal 275/40R17 is two pounds heavier, but 0.4" shorter than the 255/50R16. Assuming the wheel weight is about the same, how big of an effect will this have on dyno numbers?

    Thanks,
    Chuck
    CMC#14

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •