Re: Best steering ratio in drag car
[Re: varunner]
#2631403
03/11/19 11:49 AM
03/11/19 11:49 AM
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Joined: Dec 2005
Posts: 1,495 Shelby mi.
JAKE68
pro stock
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pro stock
Joined: Dec 2005
Posts: 1,495
Shelby mi.
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I wood leave it stock. increasing ratio would make it too sensitive. One of the biggest problems with crashes is over correcting so faster ratio would only compound the problem.
JAKES AUTOMOTIVE
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Re: Best steering ratio in drag car
[Re: varunner]
#2631561
03/11/19 07:47 PM
03/11/19 07:47 PM
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Joined: Aug 2003
Posts: 43,719 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,719
Bend,OR USA
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I like the standard ratio in the original A and B body cars, reducing the steering wheel diameter does affect how hard they are to turn and how quick the car starts to turn. My current S/P car has a early rack and pinion that is probably around a 12 to 1 ratio with a very small diameter steering wheel in it and it is a bear to turn when sitting still or barely moving, not so bad after 20+ MPH.
Last edited by Cab_Burge; 03/11/19 07:49 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Best steering ratio in drag car
[Re: JAKE68]
#2631562
03/11/19 07:49 PM
03/11/19 07:49 PM
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Joined: Dec 2003
Posts: 23,273 Here
jcc
If you can't dazzle em with diamonds..
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If you can't dazzle em with diamonds..
Joined: Dec 2003
Posts: 23,273
Here
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I wood leave it stock. increasing ratio would make it too sensitive. One of the biggest problems with crashes is over correcting so faster ratio would only compound the problem. Would the second biggest problem be under correcting, and a faster ratio would then reduce the problem? : To me its still the driver, over-correcting is caused by limited driver skill set and onset of driver panic with their steering inputs Everyone is different, choose your ratio wisely..
" All sorts of things can happen when you are open to new Ideas" Inventor of Kevlar
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Re: Best steering ratio in drag car
[Re: jcc]
#2631585
03/11/19 08:49 PM
03/11/19 08:49 PM
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Joined: Dec 2005
Posts: 12,289 Fulton County, PA
CMcAllister
Mr. Helpful
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Mr. Helpful
Joined: Dec 2005
Posts: 12,289
Fulton County, PA
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3 turns lock to lock is normal.
If the results don't match the theory, change the theory.
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Re: Best steering ratio in drag car
[Re: JAKE68]
#2631639
03/11/19 11:03 PM
03/11/19 11:03 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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I wood leave it stock. increasing ratio would make it too sensitive. One of the biggest problems with crashes is over correcting so faster ratio would only compound the problem. I agree with this... I have a short wheel base car and needed to slow the ratio twice to get what I wanted.. a rack and pinion set up
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Re: Best steering ratio in drag car
[Re: MR_P_BODY]
#2631785
03/12/19 10:47 AM
03/12/19 10:47 AM
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Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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we went from 24:1 to 16:1 (manual) in the stock car & it was a night & day improvement, before it was hand over hand in the corners to turn it. In a 1/4 mile drag car I would think there'd be minimal turning in that pretty much strait line 1/4 mile stretch but I ain't a drag racer so I am just thinking out loud (FWIW). As said I would set in/test drive one that had the 16:1 & see what you think before you invest your time/$$$.
live every 24 hour block of time like it's your last day on earth
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Re: Best steering ratio in drag car
[Re: varunner]
#2631856
03/12/19 12:09 PM
03/12/19 12:09 PM
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Joined: Apr 2007
Posts: 289 Lowes
steve660
enthusiast
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enthusiast
Joined: Apr 2007
Posts: 289
Lowes
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Isnt there a 20:1 ratio also?
I had mine rebuilt and had a 20:1 put in.
Somebody on here did it, not sure who, been a long time ago. Maybe Resto by Rick?
PSO headed 632 from MM. Cracked cylinder, loose valve seats, low oil pressure, low cylinder pressure. ..... Now its a door stop....
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Re: Best steering ratio in drag car
[Re: steve660]
#2631879
03/12/19 01:00 PM
03/12/19 01:00 PM
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Joined: Jan 2003
Posts: 10,081 Frostbitefalls MN (Rocky&Bullw...
gregsdart
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,081
Frostbitefalls MN (Rocky&Bullw...
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I have mustangII rack in my dart, and the steering arms are shotened up a lot, to 2 1/4 turns lock to lock and about 45 degrees turn on the inside wheel. What this deal has done for me is allow me to make a snap correction at speed, and come out of a big slide ok. So as you can guess, I like fast ratios! Putting extra caster in really helps keep the car on track. Just don't overdo it. If you lose your grip on the wheel in a turn, it can do serious damage to some fingers.
8.582, 160.18 mph best, 2905 lbs 549, indy 572-13, alky
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Re: Best steering ratio in drag car
[Re: gregsdart]
#2631884
03/12/19 01:20 PM
03/12/19 01:20 PM
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Joined: Dec 2005
Posts: 12,289 Fulton County, PA
CMcAllister
Mr. Helpful
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Mr. Helpful
Joined: Dec 2005
Posts: 12,289
Fulton County, PA
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Standard Pinto rack and spindles on mine were 20:1. Was satisfactory, but I wouldn't have wanted it any slower and wouldn't have minded it being a bit quicker.
If the results don't match the theory, change the theory.
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Re: Best steering ratio in drag car
[Re: Cab_Burge]
#2632052
03/12/19 08:30 PM
03/12/19 08:30 PM
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Joined: Mar 2003
Posts: 9,112 Rogue River, OR
Jeremiah
master
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master
Joined: Mar 2003
Posts: 9,112
Rogue River, OR
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Currently the best deal going on a 20:1 aluminum manual steering boxes is on ebay for around $150.
The best deal going on a 16:1 manual box is around $300 from PST.
For fast ratio power steering you have similar, more expensive options.
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Re: Best steering ratio in drag car
[Re: Cab_Burge]
#2632087
03/12/19 10:33 PM
03/12/19 10:33 PM
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Joined: Dec 2007
Posts: 12,593 Great Neck,LI,new york
hemi-itis
I Live Here
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I Live Here
Joined: Dec 2007
Posts: 12,593
Great Neck,LI,new york
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I would try contacting Firm Feel to see what they offer as far as ratio, gears and rebuilding or exchanging yours I have two stock boxes that will be used on both my future projects, I'm going to need the couplers for the stock standard steering shafts though, maybe I should call firm feel now Now why would you use a stock solid steering shaft instead of CM tube?
HEMI-ITIS has no cure. My condition is fully BLOWN!!
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Re: Best steering ratio in drag car
[Re: gregsdart]
#2632162
03/13/19 07:47 AM
03/13/19 07:47 AM
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Joined: Jan 2005
Posts: 2,540 Milwaukee WI
TRENDZ
master
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master
Joined: Jan 2005
Posts: 2,540
Milwaukee WI
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Totally agree with Gregsdart. I also favor fast ratios. Great advice on caster also.
"use it 'till it breaks, replace as needed"
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