« previous next »
Pages: [1]   Go Down

Author Topic: setup wanted  (Read 3474 times)

0 Members and 1 Guest are viewing this topic.

Offline dicky43d

  • Turf Warrior
  • **
  • Posts: 166
  • Karma: 1
  • Gender: Male
  • Tumbleweed Racing
    • View Profile
setup wanted
« on: August 07, 2014, 01:38:05 am »
my home track the straightaways are 75 FT long tight corners. I have 7 on motor 5 on tranny for pulleys, 13 on tranny and 40 on axle for sprockets. I am pulling them out of the corner. Now my question is, I have been asked to run on a 1/4 mile track with 330 ft straightaways. What would be good to run for pulleys and sprockets? Also I am going to try and make it to the all American this year which I have been told are 175 ft straightaways. what would be good there. I am running a modified 31 ci briggs single cyl. please point me in the right direction. thanks again
Logged

Offline dicky43d

  • Turf Warrior
  • **
  • Posts: 166
  • Karma: 1
  • Gender: Male
  • Tumbleweed Racing
    • View Profile
Re: setup wanted
« Reply #1 on: August 08, 2014, 05:08:04 pm »
.
Logged

Offline westcoast racer

  • Turf Warrior
  • **
  • Posts: 340
  • Karma: 1
  • Gender: Male
    • View Profile
Re: setup wanted
« Reply #2 on: August 11, 2014, 01:01:06 pm »
Try this website:  http://www.eccarburetors.com/technical_14.html  You will need to split your transmission and count the teeth on the gear sets.  I would think you would want to be between a 6.5:1 or 7.0:1 final.

Logged
Dan Borba

Offline dicky43d

  • Turf Warrior
  • **
  • Posts: 166
  • Karma: 1
  • Gender: Male
  • Tumbleweed Racing
    • View Profile
Re: setup wanted
« Reply #3 on: August 27, 2014, 07:28:08 pm »
right now I am at 7.74 final ratio according to ec gearing calculator.
Logged

Offline westcoast racer

  • Turf Warrior
  • **
  • Posts: 340
  • Karma: 1
  • Gender: Male
    • View Profile
Re: setup wanted
« Reply #4 on: September 02, 2014, 01:56:10 pm »
Use the calculator and see what a 14 or 15 on the tranny gives you for a final ratio. 
Logged
Dan Borba

Offline dicky43d

  • Turf Warrior
  • **
  • Posts: 166
  • Karma: 1
  • Gender: Male
  • Tumbleweed Racing
    • View Profile
Re: setup wanted
« Reply #5 on: September 03, 2014, 06:57:28 pm »
with a 15 it will be 6.70 final ratio, with a 14 it will be 7.18 final ratio. This is all in 5th gear. my 3rd and 4th are the same
Logged

Offline westcoast racer

  • Turf Warrior
  • **
  • Posts: 340
  • Karma: 1
  • Gender: Male
    • View Profile
Re: setup wanted
« Reply #6 on: September 04, 2014, 02:01:09 pm »
For the 1/4 mile track you may even want a 16 tooth sprocket.  I would suggest getting gear sets for the tranny that would allow you to run all the tracks without having to switch the sprocket on the tranny.  You may find that with the right gears and sprocket in and on the tranny that you can run all 3 tracks by using 3rd, 4th or 5th gear.  I have done this with one of my mowers.
Logged
Dan Borba
Pages: [1]   Go Up
« previous next »