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Old 03-30-2021, 11:46 PM   #1
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Join Date: Nov 2017
Location: Va
Default Steering rack swap

Hey all, I was wondering if there are any options for a steering rack swap? The steering in my 240 has always left something to be desired especially when compared to a BMW steering rack or something similar. What would I need to account for other than rack width and fitting sizes/threads?
1992 240 Sedan Project Car
1988 245 Daily
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Old 03-31-2021, 12:17 AM   #2
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Join Date: Mar 2008

Steering shaft to rack pinion size?, same distance, place?. Mounting points, how is it mounted, different mounting centers? how far away to the center of the rack to the mounts, any change in rack to frame will give you bump steer, overall width, tie rod ends.
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Old 03-31-2021, 10:43 AM   #3
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Join Date: May 2020
Location: Dallas, Texas

Isn't someone selling quick ratio rack and pinion kits for manual racks? There's also ben's quick steer roll correctors with adjustable steering ratio. And if you have a power steering rack, there should be a way to modify the pump itself to provide less assistance which should give you better feel.
1992 volvo 240 wagon:
> flavor: black on tan
> suspension: stock + 23/19mm f/r arb
> wheels: 14x6" enkei 92 + 215/70R14
> drivetrain: M47II + 3.31 + open diff
> engine: B230F + 2.5" exhaust
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Old 03-31-2021, 11:28 AM   #4
Ronald Culberbone III
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Join Date: Feb 2010
Location: Portland, OR

The reason the BMWs feel better has to do with how the suspension arms are mounted.
240s have giant, soft rubber bushings from the factory and a steering shaft that has a rubber isolator in it. If you want better feel, you can add delrin or poly bushings. You can also get a solid steering shaft. Adding more caster can also help.
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Old 03-31-2021, 12:12 PM   #5
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Join Date: May 2015
Location: In bed, probably

Steering rack bushings probably don't help either.
1993 944 B230FT/M90 thread here: http://forums.turbobricks.com/showthread.php?t=345277
2x 1991 245 B230F/M47 (LeMons car, street car)
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Old 03-31-2021, 08:15 PM   #6
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Location: Va

Ok, you guys have convinced me to just try to get the stock stuff working at 110% then. I'll start with poly bushings and go from there. Thanks!
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Old 04-01-2021, 04:44 PM   #7
Reformed SAABaholic
Join Date: Nov 2009
Location: NW Georgia

There was an option to fit a very similar rack with a better ratio; I'm trying to think of the OE application.... perhaps a MERCUR?

Check some old FS thread listings and see; from memory, JohnV put one of these quick ratio racks into a 240 and the only adaptation was at the "rag joint" ..... steering shaft input.
Project "cheap thrills" build thread: http://forums.turbobricks.com/showth...67#post4211467

Feedback thread: http://forums.turbobricks.com/showthread.php?t=198746
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