Author Topic: Hole size ?  (Read 175 times)

Offline retroboy

  • Full Member
  • ***
  • Posts: 197
    • View Profile
  • Your Track: Whyalla
  • Your Vehicle: FED
Hole size ?
« on: March 17, 2020, 03:27:55 AM »
Howdy all. I have just sold my Weld Pro Star wheels and noticed they had a reasonably big hole in  the rim for the tube teat to go through. The tubes I have have a metal bit where the valves go which will fit through a 1/2" hole but where that joins the tube the tube has a raised section that needs to sit in the hole as well. The Welds had maybe a 5/8" hole. I need to run tubes because I'm going to an alloy slot type wheel that has a reputation of being porous. What size holes do I need. Or can I run big 4wd tubes with a conventional rubber teat?

Offline AWAG

  • Newbie
  • *
  • Posts: 13
    • View Profile
  • Your Track: KRPI
  • Your Vehicle: altered
Re: Hole size ?
« Reply #1 on: March 17, 2020, 06:07:59 AM »
I can't help you about the tubes but what I would do is. Paint the inside of the rim to seal up any porosity, coat the inside of the tire thinly with dish soap, keep the car on stands between events.

Offline dreracecar

  • Hero Member
  • *****
  • Posts: 1724
    • View Profile
  • Your Track: Bakersfield
  • Your Vehicle: 7-0 pro dragster
Re: Hole size ?
« Reply #2 on: March 17, 2020, 08:49:30 AM »
So hard to diagnose a situation without pictures

Offline JrFuel Hayden

  • Hero Member
  • *****
  • Posts: 585
    • View Profile
    • Hayden Enterprises Speciality Wheels
  • Your Best Time: 6.02, 236 mph, 1/4 in 1973 Div 3 TF Champ
  • Your Engine: SBC, Alky, 403 ci, Best 6.99 @ 190 & 409 Hemi
  • Your Track: Bakersfield
  • Your Vehicle: 225" FED NHRA Heritage Jr Fuel
Re: Hole size ?
« Reply #3 on: March 17, 2020, 11:37:09 PM »
I agree with Bruce, need photos, but I think the big tube hole is for a tubeless valve stem, not a tube
Jon C. Hansen

Hayden Wheels

Offline retroboy

  • Full Member
  • ***
  • Posts: 197
    • View Profile
  • Your Track: Whyalla
  • Your Vehicle: FED
Re: Hole size ?
« Reply #4 on: March 18, 2020, 03:52:22 AM »
It's okay I just ordered some tubes with a regular size rubber valve teats to avoid butchering the wheels. These wheels were made in my home town from the mid 1970's until maybe 1985. This is the 4th set I've had in 30 plus years but they are hard to find now - this pair took 5 years! These have had a tyre fitted but have never been used. Old and Heavy, you bet ya, but I love 'em
Cheers


Offline THE FRENCHTOWN FLYER

  • Full Member
  • ***
  • Posts: 228
    • View Profile
  • Your Best Time: 8.28@168 door; 9.00@147 6-cyl alt; 8.53@160 RED
  • Your Engine: 300 Ford six NA w/ crossflow and prod. heads
  • Your Track: Milan, Thompson
  • Your Vehicle: Advanced Chassis altered , The Last Logghe altered, '30 RPU
  • General Location: North Coast
Re: Hole size ?
« Reply #5 on: March 18, 2020, 12:24:34 PM »
What kind of lug nuts are used with those counterbored holes?