Quick steer ratio manual racks
Thread Starter
Senior Member
Joined: Sep 2007
Posts: 599
Likes: 1
From: Long Island, NY
Car: 1992 z28
Engine: 383 LT1 in the works
Transmission: T-56 in the works
Axle/Gears: 3.73 in the works
Quick steer ratio manual racks
Anyone have one? ANy pics?
Where can I get one? The spohn manual rack is 3.75 turn to turn which is too much. I am looking for something with a quicker steering ratio.
Where can I get one? The spohn manual rack is 3.75 turn to turn which is too much. I am looking for something with a quicker steering ratio.
Senior Member

Joined: Jan 2006
Posts: 726
Likes: 1
From: League City, TX
Car: 90 Formula -- tot resto in progress
Engine: 350
Transmission: 700R4 w/ 2500 stall, by Owen @ ARD
Axle/Gears: 3.23 posi disc
Re: Quick steer ratio manual racks
Isn't less than 3.75 l-to-l getting into Indy/Formula car range?
Senior Member
Joined: Jun 2008
Posts: 1,298
Likes: 2
From: Norfolk VA
Car: 85 Camaro IROC
Engine: 5.7 TPI
Transmission: 700-R4
Axle/Gears: open rear, 3.42 gears
Re: Quick steer ratio manual racks
you have to realize two things:
a) this is a manual rack, ie, no power steering. anything less will really wear you out.
b) rack and pinions are measured differently... the lock to lock only crudely estimates the actual ratio, which is really determined by the pinion size
another thing to keep in mind is that to properly use rack and pinion you will need to shorten your spindles, which will effectively increase the rate of steering.
you can shorten the spindles even more and have a much higher rate.
IMO steering systems should be measured in degrees of steering wheel input per degree of wheel turn...
the lock to lock thing is really outdated.
for example
box a from an s-10 is a 2.75 LTL box
box b from a camaro is 2.6 turns LTL.
immediately the camaro one looks like a faster ratio, but upon closer inspection, you find that the s-10 box has a greater throw or angle at max lock than the camaro one, so although you turn the wheel more to get to full lock, you get more steering angle in the end.
the truth is that these two boxes are both 12.5:1 or whatever the ratio is. the point is that the ratio is the same and you cannot use turns-to-lock to accurately describe a steering box
[/rant]
sorry, i just had to get that out
a) this is a manual rack, ie, no power steering. anything less will really wear you out.
b) rack and pinions are measured differently... the lock to lock only crudely estimates the actual ratio, which is really determined by the pinion size
another thing to keep in mind is that to properly use rack and pinion you will need to shorten your spindles, which will effectively increase the rate of steering.
you can shorten the spindles even more and have a much higher rate.
IMO steering systems should be measured in degrees of steering wheel input per degree of wheel turn...
the lock to lock thing is really outdated.
for example
box a from an s-10 is a 2.75 LTL box
box b from a camaro is 2.6 turns LTL.
immediately the camaro one looks like a faster ratio, but upon closer inspection, you find that the s-10 box has a greater throw or angle at max lock than the camaro one, so although you turn the wheel more to get to full lock, you get more steering angle in the end.
the truth is that these two boxes are both 12.5:1 or whatever the ratio is. the point is that the ratio is the same and you cannot use turns-to-lock to accurately describe a steering box
[/rant]
sorry, i just had to get that out
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Joined: Jul 1999
Posts: 17,265
Likes: 168
From: 51°N 114°W, 3500'
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
Re: Quick steer ratio manual racks
Less turns from lock to lock also means you need more mechanical leverage to turn the wheel. Without using a power assist, this increased leverage is achieved by using a larger diameter steering wheel.
If you want a quick ratio steering, stick to a power assist. You won't like a quick ratio manual steering.
If you want a quick ratio steering, stick to a power assist. You won't like a quick ratio manual steering.
Supreme Member
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Joined: Sep 2004
Posts: 2,069
Likes: 4
From: MN
Car: 85 SC, 86 Berlinetta
Engine: V6, V8
Transmission: 700r4, 700r4
Re: Quick steer ratio manual racks
It's been a while, but I recall a manual rack being really heavy when moving slowly, so that is another compromise you might have to make.
Member
iTrader: (2)
Joined: Sep 2006
Posts: 440
Likes: 0
From: Greater D.C. area.
Car: 89 Camaro RS
Engine: LO3 TBI
Transmission: 700R4 => WC T-5
Axle/Gears: 3.42 Open Diff
Re: Quick steer ratio manual racks
I'm kinda skeptical of a manual steering on a camaro, my steering is pretty heavy in stock form.
Senior Member
Joined: Jul 2008
Posts: 808
Likes: 2
From: Ft Wayne, IN
Car: 2003 F-150
Engine: 4.6L Modular V8
Transmission: 4R70W
Axle/Gears: Ford 8.8"/3.55 LSD
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Thread Starter
Senior Member
Joined: Sep 2007
Posts: 599
Likes: 1
From: Long Island, NY
Car: 1992 z28
Engine: 383 LT1 in the works
Transmission: T-56 in the works
Axle/Gears: 3.73 in the works
Re: Quick steer ratio manual racks
You can use Racecrafts drop spindles with modified steering arms to help get back the steering radius. I ordered a set. We'll see in a few weeks once things start coming together.
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