Race Car Tech Discuss anything related to road racing and auto X.

Anyone with no power steering that autocrosses?

Thread Tools
 
Search this Thread
 
Old Jul 24, 2007 | 01:18 PM
  #1  
hurleysurf24's Avatar
Thread Starter
wtf rotary wtf
Tenured Member 15 Years
iTrader: (3)
 
Joined: Aug 2005
Posts: 2,756
Likes: 1
From: Who knows
Anyone with no power steering that autocrosses?

Does anyone do this? I'm installing my FMIC and scratching the air conditioning and power steering. I heard you could possibly relocate the power steering, but just wanted opinions if I did infact have to lose it .. on how it handles, and if its possible.

BTW this is a greddy 3 row kit (older version that comes out the bottom of each side of the end tank).
Reply
Old Jul 24, 2007 | 01:38 PM
  #2  
Roen's Avatar
The Silent but Deadly Mod
Tenured Member: 20 Years
iTrader: (2)
 
Joined: Aug 2003
Posts: 4,047
Likes: 3
From: NYC/T.O.
It hurts.

You have more feel of where the wheels are, but you might get distracted by the increased effort to turn the wheel.
Reply
Old Jul 24, 2007 | 01:44 PM
  #3  
hurleysurf24's Avatar
Thread Starter
wtf rotary wtf
Tenured Member 15 Years
iTrader: (3)
 
Joined: Aug 2005
Posts: 2,756
Likes: 1
From: Who knows
but i could always mock up an electric power steering deal for the car no ?
Reply
Old Jul 24, 2007 | 02:32 PM
  #4  
dbgeek's Avatar
Happy Squirter
Tenured Member 05 Years
 
Joined: Feb 2004
Posts: 263
Likes: 0
From: Lyman, SC
Running 225/50 710s with no power steering isn't that bad. I really like the Ultra-feel I get through the manual rack. I find that the extra effort is only there for barely-moving turns- anything over 10 mph or so is fine. Steering effort builds with angle and wiggles with grip.
Reply
Old Jul 24, 2007 | 03:05 PM
  #5  
DriftingB26RX7's Avatar
Porsche-Hunter
Tenured Member 10 Years
iTrader: (4)
 
Joined: Apr 2004
Posts: 2,055
Likes: 0
From: 90041
fb bracket....look into it thats all I'm gonna say
Reply
Old Jul 24, 2007 | 07:15 PM
  #6  
Black91n/a's Avatar
Lives on the Forum
Tenured Member 10 Years
 
Joined: Sep 2003
Posts: 5,707
Likes: 6
From: BC, Canada
I've autocrossed and tracked my car with a manual converted power rack and it's fine. Sure it takes a little more effort, but to me the feel is worth it. I'm even getting a faster 15:1 rack to convert to manual and use.
Reply
Old Jul 24, 2007 | 10:15 PM
  #7  
MtotheIKEo's Avatar
Full Member
Tenured Member 05 Years
 
Joined: Aug 2006
Posts: 175
Likes: 0
From: Lodi, Ca
My SA has no power steering and with R tires its hard sometimes. If I need to correct a slide or nacigate a tight slalom I cant quite turn the wheel fast enough.
Reply
Old Jul 26, 2007 | 01:14 PM
  #8  
jkstill's Avatar
Searching for 10th's
Tenured Member: 20 Years
Liked
Loved
Community Favorite
iTrader: (11)
 
Joined: May 2002
Posts: 2,277
Likes: 42
From: Portland OR
Originally Posted by hurleysurf24
Does anyone do this? I'm installing my FMIC and scratching the air conditioning and power steering. I heard you could possibly relocate the power steering, but just wanted opinions if I did infact have to lose it .. on how it handles, and if its possible.

.
I removed the power steering from my FD and drove it for 20 miles on a twisty road.

A road course is do-able without P/S, but I think autox would be very difficult.
This was with 245/45/16 Toyo T1S tires.

The 265/45/16 V710's would have been a handful.

Sure you could do it, but slaloms would be quite difficult IMO.

TurboJeff came to the same conclusion for his Grass Roots Motorsports Challenge car: too difficult to do slaloms and tight turns, and that was with an FC.

The P/S went back in my car after that.

I didn't actually try autocross, and the car has a new engine, and is not yet broken in or tuned.

The Maval rack conversion is supposed to be better than the line loop conversion, but I want to drive an FD with one before I try that.
Reply
Old Jul 26, 2007 | 02:18 PM
  #9  
hurleysurf24's Avatar
Thread Starter
wtf rotary wtf
Tenured Member 15 Years
iTrader: (3)
 
Joined: Aug 2005
Posts: 2,756
Likes: 1
From: Who knows
so is there a way to move the power steering or set up something different that lets me keep my intercooler piping ?
Reply
Old Jul 26, 2007 | 02:19 PM
  #10  
Kentetsu's Avatar
Lives on the Forum
Tenured Member 15 Years
 
Joined: Jun 2004
Posts: 11,359
Likes: 14
From: Grand Rapids Michigan
I do it with my 1st gen, and it can be a real workout. Sometimes, in the tight sections, you have to go hand over hand so fast that you can get tied up in knots. lol. Happened this past weekend, and took out four cones at once before my arms got caught up again.
Reply
Old Jul 26, 2007 | 04:58 PM
  #11  
turbojeff's Avatar
Do it right, do it once
Tenured Member 15 Years
iTrader: (30)
 
Joined: Apr 2001
Posts: 4,830
Likes: 14
From: Eugene, OR, usa
Road course you'll be fine.

Auto-x you won't be fine. Look at the National level autocrossers, those guys typically will take the weight penalty and keep PS. It is just too hard to be precise while going through the tight stuff.
Reply
Old Jul 27, 2007 | 09:31 AM
  #12  
Roen's Avatar
The Silent but Deadly Mod
Tenured Member: 20 Years
iTrader: (2)
 
Joined: Aug 2003
Posts: 4,047
Likes: 3
From: NYC/T.O.
Even on the road course, if you're not used to it, by your 4th and 5th 20-minute racing session, your muscles will start to cramp. (I have a manual fluid drained power-rack). And I'm by no means a small, frail, weak individual. I find that I have to muscle the steering if I need to correct a slide, but I can get there fast enough.

Now my friend's manual 20:1 rack, he says, is very doable, even in autox. So, to each his own.
Reply
Old Jul 27, 2007 | 04:47 PM
  #13  
Silkworm's Avatar
Has been.. hangin' around
Tenured Member 10 Years
 
Joined: Mar 2001
Posts: 2,618
Likes: 0
From: Milpitas, CA
Mine is the standard manual rack, I have no problems in a road racing sprint session, but then I usually only have 3 30 minute sessions on track during the day. Really don't notice not having power steering except in the paddock.

I could see an auto-x being much different.
Reply
Old Jul 28, 2007 | 12:20 AM
  #14  
scotty305's Avatar
~17 MPG
Tenured Member: 20 Years
Liked
Loved
Community Favorite
iTrader: (2)
 
Joined: Jan 2004
Posts: 3,478
Likes: 334
From: Bend, OR
My friend owns an FD with the power steering lines looped back. I drove his car (17" wheels with 255-width street tires) at an autocross once, and it was a noticeable difference in effort. I didn't miss any slaloms, but it took at least half a lap to get used to it. If you're a very aggressive driver who is always making steering corrections, you probably won't like it.

If you're running race tires, you should probably keep the power steering. If this is your street car and you're just autocrossing for fun, you might prefer the feel of the manual rack. I'm planning to remove my PS as soon as I can figure out a clean way to keep the A/C.


-s-
Reply
Old Jul 28, 2007 | 09:16 AM
  #15  
fritts's Avatar
Mad Man
Tenured Member: 20 Years
iTrader: (5)
 
Joined: Aug 2002
Posts: 2,128
Likes: 4
From: Indiana
I ran my FD with 265/35R18 Hankook RS2's with the lines looped. It was more effort without a doubt but it was definetly something that can be handled. I don't believe that the increased effort translated into slower turning. Of course I have aftermarket seats that hold me in quite well too though. The course was actually one of the tighter courses. I have now went to a full conversion and it made a very nice difference. I can't wait for the next auto x with the full conversion should be much better.
Reply
Old Jul 29, 2007 | 12:28 PM
  #16  
j9fd3s's Avatar
Moderator
Community Builder
Liked
Loved
Community Favorite
iTrader: (3)
 
Joined: Mar 2001
Posts: 31,835
Likes: 3,233
From: https://www2.mazda.com/en/100th/
on the fc's, i like the 17:1 rack ratio, with the ps, i find its perfect.

the 15:1 is too fast (i'm used to 1st gens), and effort without ps would be way to high, you end up concentrating on muscling the wheel, instead of positioning the car.

the fc manual rack is fine, effort wise, but 20:1 is a slow ratio, you have to fast with your hands!
Reply
Old Jul 30, 2007 | 12:16 PM
  #17  
Jims5543's Avatar
Senior Member
Tenured Member 20 Years
iTrader: (2)
 
Joined: Sep 2001
Posts: 345
Likes: 0
From: Jensen Beach, Fl
If you have good upper body strength its not that bad. I run 16x10 Hoosier Slicks on my FC with 6° of caster and its not an easy car to turn but its not impossible.

Once your used to it and develop the strength its just fine. Road course? I prefer not having PS but in autocross, yes, its tough and easy to fall behind through the tight stuff, but when you have a good run and your on your A game its a very nice setup and it gives a ton of feedback. I can feel her getting ready to wash out and can adjust before she does. I personally could never go to Power Steering I do not like the disconnected feeling.
Reply
Old Jul 30, 2007 | 01:50 PM
  #18  
Kentetsu's Avatar
Lives on the Forum
Tenured Member 15 Years
 
Joined: Jun 2004
Posts: 11,359
Likes: 14
From: Grand Rapids Michigan
I had the chance to drive one of Man In Black's cars (1st gen). The steering was incredibly light! I would have sworn that he had power steering, it felt that good. What he did was swap out a couple of the gears in the steering box, and replaced them with parts from another Ford steering box. He did a short writeup on it somewhere....

Anyway, he'll be doing one for me shortly. The difference is hard to believe...
Reply
Old Jul 30, 2007 | 03:43 PM
  #19  
Roen's Avatar
The Silent but Deadly Mod
Tenured Member: 20 Years
iTrader: (2)
 
Joined: Aug 2003
Posts: 4,047
Likes: 3
From: NYC/T.O.
i feel that, if you're going to take out ps, use a manual rack, that being said, i'm going to try out a 15.2 rack with looped lines to see if that's any good.
Reply
Old Jul 30, 2007 | 04:35 PM
  #20  
cozmo kraemer's Avatar
Darkside FD
Tenured Member 15 Years
 
Joined: Jan 2004
Posts: 1,175
Likes: 0
From: AZ
I have a maval rack in my FD w/ 255/40 Falken RT615 it is pretty heavy when trying to park or make any slow speed manuevers. I also notice the effort on sharp 90 degree turns at moderate speed.

It is great for high speed steering feel but I think it would be a big detriment to autox. I think it would make the car slower for autox.

At the very least you have to adjust your driving style. I have to sit closer to the wheel and more upright to get leverage on the wheel. I am not a small/weak guy either (6'2" about 185lbs) I did the decathlon for Arizona State's track team. To me it is a lot of extra effort.

On a positive note! I do like having the freed up space in my engine bay!
Reply
Old Jul 30, 2007 | 04:48 PM
  #21  
ajhehr's Avatar
Senior Member
Tenured Member 10 Years
 
Joined: Nov 2004
Posts: 318
Likes: 0
From: Houston
275/40r 17 front and rear, manual rack, Im 6'2" I moved the stearing wheel 6" closer to me and I dont notice the effort during autox or road racing...

I notice it a little drifting.

If your a bigger guy i say ok, but if your a featherweight summitt sells billit aluminium powerstearing pumps that weigh nothing
Reply
Old Jul 31, 2007 | 12:21 PM
  #22  
Kentetsu's Avatar
Lives on the Forum
Tenured Member 15 Years
 
Joined: Jun 2004
Posts: 11,359
Likes: 14
From: Grand Rapids Michigan
Here's that writeup by Man in Black if anyone's interested:

https://www.rx7club.com/suspension-wheels-tires-brakes-20/x7-productions-steering-trick-666183/
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
LMBTG
New Member RX-7 Technical
4
Sep 2, 2015 07:01 PM
rotor_veux
2nd Generation Specific (1986-1992)
7
Aug 31, 2015 07:49 PM
c0rpse
2nd Generation Specific (1986-1992)
1
Aug 25, 2015 11:50 PM




All times are GMT -5. The time now is 10:13 AM.