« previous next »
Pages: [1]   Go Down

Author Topic: a little info/help  (Read 10982 times)

Offline racer

  • Newbie
  • *
  • Posts: 13
    • View Profile
a little info/help
« on: May 01, 2013, 07:18:23 PM »
making some parts choices and was wondering how many use low gear in a glide and break and how many use high gear only and foot brake it??? thanks jeff
Logged
life is what ya make it!! lets have some fun..

Offline GlennLever

  • Global Moderator
  • Hero Member
  • *****
  • Posts: 2010
    • View Profile
    • The Lever Family Site
  • Your Best Time: 1/4 mile 7.950 at 165 MPH
  • Your Engine: Pontiac 461 Alky Blown
  • Your Track: Empire Dragway, NY
  • Your Vehicle: Front Engine Dragster
Re: a little info/help
« Reply #1 on: May 01, 2013, 09:58:40 PM »
I'm currently using low gear and a brake at the line.

I need to drop .25 seconds to run an 8.5 index, might consider foot brake and high gear launch.

I have several other stratiges I'm going to try first.

I do not want to lose the trans brake as I think it adds to consistency.

Just my two cents.
Logged
Glenn R. Lever
Rochester, New York 14617-2012
My Cars https://www.lever-family-racing.com/

Offline FatOldGuy

  • Newbie
  • *
  • Posts: 11
    • View Profile
  • Your Best Time: 7.99
  • Your Engine: FED ,Alcohol,540 Merlin
  • Your Track: Great Lakes Dragaway
  • Your Vehicle: 200" blown alcohol FED
Re: a little info/help
« Reply #2 on: May 02, 2013, 04:06:12 AM »
Trans gets very hot with high gear only
Logged

Offline racer

  • Newbie
  • *
  • Posts: 13
    • View Profile
Re: a little info/help
« Reply #3 on: May 02, 2013, 06:10:50 AM »
i would think so but there is some doing this..thanks for your input..any one else ?
Logged
life is what ya make it!! lets have some fun..

Offline AF150

  • Jr. Member
  • **
  • Posts: 92
  • The Devil is in the Details
    • View Profile
  • Your Best Time: 7.37 1/4 mile
  • Your Engine: Early Hemi, 365", Blown Alky
  • Your Track: Tulsa Raceway Park
  • Your Vehicle: 200" FED
Re: a little info/help
« Reply #4 on: May 02, 2013, 08:31:52 AM »
I think that you need the gear reduction to get a decent launch and good 60' times. This is about the
most important part of a run. The trans brake is insurance at the start line to keep from rolling the
lights and going red. You do not have to leave at full throttle just because you have a trans brake.
Find the best RPM for launching your car. It varies alot with power, weight, tires, converter, etc.
A 2-step is handy if your rules allow it.
Logged
MB

Offline masracingtd1167

  • Hero Member
  • *****
  • Posts: 1110
  • 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
Re: a little info/help
« Reply #5 on: May 02, 2013, 11:42:50 AM »
I would agree with these guy's . Unless you are making a ton of power it's not going to be very fast at all. You are also going to put a severe amount of heat into the converter .
Logged

Offline afaulk

  • Full Member
  • ***
  • Posts: 126
    • View Profile
  • Your Best Time: 4.69 @ 145 1/8 mile
  • Your Engine: 370" Blown Alky Chevy
  • Your Track: I-22 Motorsports Park, Eldridge, AL
  • Your Vehicle: 186" Faulkner FED
  • General Location: North Alabama
Re: a little info/help
« Reply #6 on: May 02, 2013, 07:42:27 PM »
I'm glad someone asked this question. I just put the blower on my car and haven't changed rear end gears.  It's a 8 3/4 diff with 4.88 gears. Worked great with a mild 350 but I'm figuring it will be a bit much (understatement  8)) with the addition of the blower and alky.
Logged

Offline AF150

  • Jr. Member
  • **
  • Posts: 92
  • The Devil is in the Details
    • View Profile
  • Your Best Time: 7.37 1/4 mile
  • Your Engine: Early Hemi, 365", Blown Alky
  • Your Track: Tulsa Raceway Park
  • Your Vehicle: 200" FED
Re: a little info/help
« Reply #7 on: May 03, 2013, 08:44:15 AM »
Start with about a 4.11.  Should probably keep RPMs under 7500 - 8000 till you learn more about
your combination.
Logged
MB

Offline GlennLever

  • Global Moderator
  • Hero Member
  • *****
  • Posts: 2010
    • View Profile
    • The Lever Family Site
  • Your Best Time: 1/4 mile 7.950 at 165 MPH
  • Your Engine: Pontiac 461 Alky Blown
  • Your Track: Empire Dragway, NY
  • Your Vehicle: Front Engine Dragster
Re: a little info/help
« Reply #8 on: May 03, 2013, 09:20:49 AM »
Mine a Pontiac, so it is out there, 461 CID launch at 4500, rear is 3:70 tires are 31 tall run 8.250 at 157 in the quarter 11 pounds  of boost
Logged
Glenn R. Lever
Rochester, New York 14617-2012
My Cars https://www.lever-family-racing.com/

Offline Marc s

  • Newbie
  • *
  • Posts: 3
    • View Profile
Re: a little info/help
« Reply #9 on: May 03, 2013, 05:47:50 PM »
I launch off of the brake at 6400 RPMs. From the videos I have, the front tires touch the ground around 200' out. My 60' times are range  between 1.02-1.06.
Logged

Offline FatOldGuy

  • Newbie
  • *
  • Posts: 11
    • View Profile
  • Your Best Time: 7.99
  • Your Engine: FED ,Alcohol,540 Merlin
  • Your Track: Great Lakes Dragaway
  • Your Vehicle: 200" blown alcohol FED
Re: a little info/help
« Reply #10 on: May 11, 2013, 07:32:49 AM »
I think I had an A1 trans brake on my old powerglide. It would work in 1st or 2nd gear. When I screwed up and left in 2nd gear(on trans break), my ET was surprisingly very close to the same thing . Just extremely hot after the pass.
Logged
Pages: [1]   Go Up
« previous next »