« previous next »
Pages: [1]   Go Down

Author Topic: Runout on rear wheel  (Read 5539 times)

Offline masracingtd1167

  • Hero Member
  • *****
  • Posts: 1138
  • bill masiello Shelton Ct.
    • View Profile
  • Your Best Time: 7.40's at 181 on motor 6.94 at 192 nitrous
  • Your Engine: 394 chevy
  • Your Track: Lebanon Valley Dragway
  • Your Vehicle: 2003 Neil and Parks
Runout on rear wheel
« on: April 30, 2014, 12:59:49 PM »
I was just checking a spare set of wheels that I have and the runout is around .070 . Is this ok ?
Logged

Offline wideopen231

  • Hero Member
  • *****
  • Posts: 1910
    • View Profile
  • Your Best Time: 1/8 3.70@ 198 1/4 5.78@245
  • Your Engine: Hemi 526 ci alcohol
  • Your Track: Piedmont
  • Your Vehicle: 225 CMC FED
  • General Location: NORTH CAROLINA
Re: Runout on rear wheel
« Reply #1 on: April 30, 2014, 03:42:20 PM »
Bill you are trying hard to get reason to buy some new wheels aren't you? I just replied to this on drr. I know  you found some super lite wheels you want right?

This from the guy who spent 4 hours maching on some used caliper to save 2 whole pounds off rear of car. Heck I drilled the holes to get the air out of them.

  I don't see how .070 could be big deal.Think about all the crap the tires does shape wise during a run. Is it wheel or mounting maybe tightened some before centeredmwould only take .035 off one way to get the .070 you have that pretty small on 15" wheel.
Logged
Relecting obama is like shooting right foot because it did not hurt enough when you shot left foot

Offline Cajuninjector

  • Jr. Member
  • **
  • Posts: 64
    • View Profile
  • Your Best Time: 7.50@176
  • Your Engine: SBC 406 Alky Stacked Hilborn
  • Your Track: SWJFA
  • Your Vehicle: 225" FED-Wizard Race Cars
Re: Runout on rear wheel
« Reply #2 on: April 30, 2014, 07:05:56 PM »
I just made the first race of the season (6 passes) with a brand new set of 2585's that had at least 5/8" difference and everything was fine.
Logged
Go Hard or Go Home

Offline wideopen231

  • Hero Member
  • *****
  • Posts: 1910
    • View Profile
  • Your Best Time: 1/8 3.70@ 198 1/4 5.78@245
  • Your Engine: Hemi 526 ci alcohol
  • Your Track: Piedmont
  • Your Vehicle: 225 CMC FED
  • General Location: NORTH CAROLINA
Re: Runout on rear wheel
« Reply #3 on: May 01, 2014, 06:12:34 AM »
Maybe my fault on confussion.Bill's post is about the wheels runout not the tires rollout.
Logged
Relecting obama is like shooting right foot because it did not hurt enough when you shot left foot

Offline Cajuninjector

  • Jr. Member
  • **
  • Posts: 64
    • View Profile
  • Your Best Time: 7.50@176
  • Your Engine: SBC 406 Alky Stacked Hilborn
  • Your Track: SWJFA
  • Your Vehicle: 225" FED-Wizard Race Cars
Re: Runout on rear wheel
« Reply #4 on: May 01, 2014, 04:39:30 PM »
I've never checked the runout of a wheel before. How do you do it?
 Sorry for my confusion.
« Last Edit: May 01, 2014, 04:43:25 PM by Cajuninjector »
Logged
Go Hard or Go Home

Offline PSweeney

  • Full Member
  • ***
  • Posts: 231
    • View Profile
  • Your Track: Santa Pod
  • Your Vehicle: 138in SBC slingshot
Re: Runout on rear wheel
« Reply #5 on: May 02, 2014, 02:16:10 AM »
throw it on the balancer without the tire, any visable run-out or if the rim requires too much weight to balance, I'd replace them.

I spent a season chasing a handling problem where my altered would start bouncing and break loose at 1000ft.  The season before I'd a "moment" in the shutdown where, due to my fault the car got out of shape and bounced around landing really hard on the rear tires.  Turns out I'd buckled a rim and bent a MW 35 spline shaft.  The shaft was chucked up in a lathe and had about 1mm eccentricity at the flange. 

So if in doubt replace,  :)
Logged
Pages: [1]   Go Up
« previous next »