Power versus manual steering
11-10-2013, 01:06 PM
#1
Race Director
Thread Starter
Power versus manual steering
So the seals in my 1991 c2 steering rack went a few weeks ago.
The car is street legal but is driven almost exclusively on the track.
The RS America is a manual rack, and I assume the 964 cup cars as well. Should I try and find a manual rack, or stick with the power rack replacement. I haven't found a source for seals to do a rebuild, so a rebuilt is probably in the cards.
Northern Ca tracks are the habitat.
The car is street legal but is driven almost exclusively on the track.
The RS America is a manual rack, and I assume the 964 cup cars as well. Should I try and find a manual rack, or stick with the power rack replacement. I haven't found a source for seals to do a rebuild, so a rebuilt is probably in the cards.
Northern Ca tracks are the habitat.
11-10-2013, 02:57 PM
#3
Nordschleife Master
The manual racks are really nice. I had a dozen of them a couple years ago I sold as New Old Stock. VERY hard to find them anymore though. There were so few no one rebuilt them and the new inventories are gone. U can occasionally find a used one (there was one here a few weeks ago) but you will spend more than the cost of buying a rebuilt for yours...
11-10-2013, 03:38 PM
#4
Addict
Rennlist Member
Rennlist Member
I made the switch in my 964 a few years ago. I don't regret it at all. I can finally feel what the front end of the car is doing.
As Bob said, the manual rack is hard to find now and a rebuilt one will not be cheap. That said, for a track car, I think it is worth it.
As Bob said, the manual rack is hard to find now and a rebuilt one will not be cheap. That said, for a track car, I think it is worth it.
11-11-2013, 09:34 AM
#6
Nordschleife Master
Speaking strictly of the 964 chassis, I much prefer the power steering to the manual steering. In the 964 Cups, if you put the front bar full stiff, I cannot physically drive the car for more than about 10 minutes. In a more normal bar position (say middle) it is very stiff and fatigue sets in on longer runs. We've converted some to power steering using the 997 Cup electric power steering and the difference is dramatic.
In my 964RSR I have a manual rack, but the car weighs 2200lbs and has 992 GT2 front suspension which is mounted wider and has revised geometery. It is very good and has a light feel, however, I still prefer the power steering found in a 993RSR/GT2 and feel that it allows one to drive fresher, longer.
In my 964RSR I have a manual rack, but the car weighs 2200lbs and has 992 GT2 front suspension which is mounted wider and has revised geometery. It is very good and has a light feel, however, I still prefer the power steering found in a 993RSR/GT2 and feel that it allows one to drive fresher, longer.
11-11-2013, 11:25 AM
#7
Race Director
Thread Starter
Speaking strictly of the 964 chassis, I much prefer the power steering to the manual steering. In the 964 Cups, if you put the front bar full stiff, I cannot physically drive the car for more than about 10 minutes. In a more normal bar position (say middle) it is very stiff and fatigue sets in on longer runs. We've converted some to power steering using the 997 Cup electric power steering and the difference is dramatic.
In my 964RSR I have a manual rack, but the car weighs 2200lbs and has 992 GT2 front suspension which is mounted wider and has revised geometery. It is very good and has a light feel, however, I still prefer the power steering found in a 993RSR/GT2 and feel that it allows one to drive fresher, longer.
In my 964RSR I have a manual rack, but the car weighs 2200lbs and has 992 GT2 front suspension which is mounted wider and has revised geometery. It is very good and has a light feel, however, I still prefer the power steering found in a 993RSR/GT2 and feel that it allows one to drive fresher, longer.
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11-11-2013, 12:31 PM
#9
uninformed gas bag
(contemplating on whether gas bag is one or two words)
Rennlist Member
(contemplating on whether gas bag is one or two words)
Rennlist Member
So the seals in my 1991 c2 steering rack went a few weeks ago.
The car is street legal but is driven almost exclusively on the track.
The RS America is a manual rack, and I assume the 964 cup cars as well. Should I try and find a manual rack, or stick with the power rack replacement. I haven't found a source for seals to do a rebuild, so a rebuilt is probably in the cards.
Northern Ca tracks are the habitat.
The car is street legal but is driven almost exclusively on the track.
The RS America is a manual rack, and I assume the 964 cup cars as well. Should I try and find a manual rack, or stick with the power rack replacement. I haven't found a source for seals to do a rebuild, so a rebuilt is probably in the cards.
Northern Ca tracks are the habitat.
11-11-2013, 12:59 PM
#10
Rennlist Member
I'd go to power steering tomorrow if I could (even though the main reason I bought a RSA was for the manual rack) but Walt said no-go in PCA stock so it will remain manual. I'm wiped at the end of a weekend (sometimes a day).
11-11-2013, 01:12 PM
#11
Addict
Rennlist Member
Rennlist Member
Like Geoff's car, mine has a modified front suspension and the car weighs 2200 lbs. It runs with 11" slicks up front too. Yes, it takes more effort and you tire more quickly. I ran 2 hours straight in an enduro with the power rack and was fine. An hour with the manual rack and I get tired. However, my lap times have come down since the change and I attribute at least a bit of that to the better feed-back I get with what the car is doing in the corners.
Bob: HMB is the same as always. I'm (semi-) retired now and split time between HMB and Santa Rosa (where it's warmer and wine is close).
Bob: HMB is the same as always. I'm (semi-) retired now and split time between HMB and Santa Rosa (where it's warmer and wine is close).
11-11-2013, 01:57 PM
#12
Rennlist Member
Another vote with Geoff. The electric pump makes slightly less pressure so steering feel is better then the belt driven pump. The effort on the manual rack is way to hard for this old guy
11-11-2013, 03:38 PM
#13
Rennlist Member
We swapped out the 944's leaky power rack for the manual one as soon as we could! 'Tis a LeMons car, so yeah--it's fine enough on longer drives. (Does remind me that I need to start working out my arms more, haha.)
Haven't tried a 911 with manual steering yet, but I'm guessing it wouldn't be too much worse than the 944 considering that I've got a bunch of extra stupid weight in the nose of my car.
Haven't tried a 911 with manual steering yet, but I'm guessing it wouldn't be too much worse than the 944 considering that I've got a bunch of extra stupid weight in the nose of my car.
