ITT we compare power, depowered, and manual steering racks for track use
#1
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Like the title says, a comparison of the three different options. I did a little searching and didn't come up with much of a comparison other than people deciding whether or not to keep it for autox. For my car it won't be for competitive autox, although it will get autox'd, but definitely a lot of HPDE and some street driving. I'd like to compare the pros, cons, and people's opinions on each of the options.
When I started collecting parts for my car I had originally planned on going with manual steering but switched to power steering after hearing people complain about it being so much steering effort on track that they spent more time worrying about actually turning than they did driving the car. A little background on the car; weight ratio is 2260 lb and 55% front with me in the car, currently on 245 vr-1 but I'll probably move to rc-1 after some time (no purple crack for me for a while). I have a couple extra ps racks lying around that I could easily de-power and one manual steering rack that I could switch out pretty easily. The power steering pump/bracket on the ls3 is probably close to 10 lb which is right at the front of the engine, not to mention the extra weight of fluid/rack so removing weight off the front would be good as well. After driving my 91 for so long with a manual rack, getting in the 90 with power steering just felt kinda numb and I really don't mind having a bit more of a workout for the improved steering feel.
Anyway, I'd like to see what other's opinions are for track use. Personally, I'd like to use the manual rack, convince me otherwise.
When I started collecting parts for my car I had originally planned on going with manual steering but switched to power steering after hearing people complain about it being so much steering effort on track that they spent more time worrying about actually turning than they did driving the car. A little background on the car; weight ratio is 2260 lb and 55% front with me in the car, currently on 245 vr-1 but I'll probably move to rc-1 after some time (no purple crack for me for a while). I have a couple extra ps racks lying around that I could easily de-power and one manual steering rack that I could switch out pretty easily. The power steering pump/bracket on the ls3 is probably close to 10 lb which is right at the front of the engine, not to mention the extra weight of fluid/rack so removing weight off the front would be good as well. After driving my 91 for so long with a manual rack, getting in the 90 with power steering just felt kinda numb and I really don't mind having a bit more of a workout for the improved steering feel.
Anyway, I'd like to see what other's opinions are for track use. Personally, I'd like to use the manual rack, convince me otherwise.
#3
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I have used both racks in both autocross and track driving. The power racks are a little faster (Less turns lock to lock) and depending on how fast your hands are, can be great for autocross. For track driving, either rack will work well, but the power rack will allow for faster corrections as the rack is faster than the manual. Once you get use to driving either one, they both work.
#8
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In my opinion, the only way I'd prefer a powered rack is for less fatigue. If I was building a chump/LeMons, Lucky Dog/etc car I'd keep the power steering. But I have no regrets depowering my Miata. I so much prefer the higher effort steering on track -- just way more fun IMO. Would I be faster with power steering? Maybe. Not really interested in finding out though. it just feels so much better.
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Reducing caster can reduce effort at speed if that's an issue. I was just glad to remove the weight and gain the space and access. It has a lot more feel now. The extra few horsepower is just a bonus.
#11
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My previous TT car was properly FM-style depowered. It was great. Literally zero downsides. With 4.5+ caster it steers fine at low speed, feels great on track.
My current PTE car came with a plugged rack, but not fully depowered. Low speed effort is too high for my liking, but I haven't been driven to drop and disassemble the rack yet.
My daily had PS and I enjoyed being able to make turns with my pinky while holding my phone, latte and cheeseburger at the same time.
My current PTE car came with a plugged rack, but not fully depowered. Low speed effort is too high for my liking, but I haven't been driven to drop and disassemble the rack yet.
My daily had PS and I enjoyed being able to make turns with my pinky while holding my phone, latte and cheeseburger at the same time.
#12
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Probably overthinking it. Part of the reason I started really thinking about it was cause our power steering belt shredded itself on track in our lemons car (audi 90 20v) and the car went from a cruise ship going through the track to a yacht instead, it was still a boat, but at least I could feel where I was going. Seems like the only real reason to consider keeping it would be for a competetive autox car on hohos where there's a lot more low-speed maneuvers. Maybe I'll try the depowered rack and see how it is, there's certainly been times when a higher ratio would be nice.
#13
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I'll be the dissenting voice here. I still have the power steering in my car, and I see no reason to take it out. The weight is minimal, the feel of the power rack is just fine, and I don't see any reason to increase the amount of physical effort that it takes to drive the car. PS makes the car faster in autox (which I used to do a lot of), and makes it easier to catch the car when it oversteers.
The PS has been rock solid reliable, I've never lost a belt, puked fluid, or had any problems with it. It's actually one of the few original components left in my engine bay at this point.![](https://www.miataturbo.net/images/smilies/smile.gif)
I have an NB, and I'm told there are differences in feel between it and the NA ones.
--Ian
The PS has been rock solid reliable, I've never lost a belt, puked fluid, or had any problems with it. It's actually one of the few original components left in my engine bay at this point.
![](https://www.miataturbo.net/images/smilies/smile.gif)
I have an NB, and I'm told there are differences in feel between it and the NA ones.
--Ian
#15
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I'll be the dissenting voice here. I still have the power steering in my car, and I see no reason to take it out. The weight is minimal, the feel of the power rack is just fine, and I don't see any reason to increase the amount of physical effort that it takes to drive the car. PS makes the car faster in autox (which I used to do a lot of), and makes it easier to catch the car when it oversteers.
The PS has been rock solid reliable, I've never lost a belt, puked fluid, or had any problems with it. It's actually one of the few original components left in my engine bay at this point.![](https://www.miataturbo.net/images/smilies/smile.gif)
I have an NB, and I'm told there are differences in feel between it and the NA ones.
--Ian
The PS has been rock solid reliable, I've never lost a belt, puked fluid, or had any problems with it. It's actually one of the few original components left in my engine bay at this point.
![](https://www.miataturbo.net/images/smilies/smile.gif)
I have an NB, and I'm told there are differences in feel between it and the NA ones.
--Ian
#16
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I'll be the dissenting voice here. I still have the power steering in my car, and I see no reason to take it out. The weight is minimal, the feel of the power rack is just fine, and I don't see any reason to increase the amount of physical effort that it takes to drive the car. PS makes the car faster in autox (which I used to do a lot of), and makes it easier to catch the car when it oversteers.
The PS has been rock solid reliable, I've never lost a belt, puked fluid, or had any problems with it. It's actually one of the few original components left in my engine bay at this point.![](https://www.miataturbo.net/images/smilies/smile.gif)
I have an NB, and I'm told there are differences in feel between it and the NA ones.
--Ian
The PS has been rock solid reliable, I've never lost a belt, puked fluid, or had any problems with it. It's actually one of the few original components left in my engine bay at this point.
![](https://www.miataturbo.net/images/smilies/smile.gif)
I have an NB, and I'm told there are differences in feel between it and the NA ones.
--Ian
I'm thinking I might try depowering one of my spare racks this winter and see how it feels. I wish I could have a nb rack since I've heard the manual nb is much better than the na but I'd need to buy a new subframe and those aren't very cheap.
#17
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In my opinion, the only way I'd prefer a powered rack is for less fatigue. If I was building a chump/LeMons, Lucky Dog/etc car I'd keep the power steering. But I have no regrets depowering my Miata. I so much prefer the higher effort steering on track -- just way more fun IMO. Would I be faster with power steering? Maybe. Not really interested in finding out though. it just feels so much better.
#20
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The only time that having my depowered rack is annoying is when going 1mph in a parking lot. Once you have any sort of speed it becomes a non-issue. The big reason I got rid of PS originally was I had already pulled AC and wanted to clean up my engine bay. Also certain turbo manifolds are not PS compatible, so that could be another reason to pull it.