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Risks of removing dust shields??
What are the risks / downsides to removing the dust shields from your car?
I have 76 Carrera 3.0 and looking at improvig the braking for several DE / track days a year. I thought the first steps would be to bleed brakes, replace brake lines, look at 993 scoops and removing the dust shields. I drive about 6,000 miles P/A. What are the risks / downsides to removing the dust sheilds - on the basis of my car usage - is it worth doing. * you need to expain in plain english / clarify in detail as this is all new to me please.......... thanks in advance. Kiwi 911 Last edited by kiwi 911; 06-18-2011 at 06:05 PM.. |
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Join Date: Jan 2005
Location: ChicagoLand
Posts: 1,298
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I've removed the shields and installed plates for a brake cooling kit for occasional track days. I think they've been on for 2 or 3 years without any issues.
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'84 Carrera (recently sold ![]() '67 MB 250SL A few Italian motorcycles ......and a minivan for the crew |
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Join Date: Dec 2003
Location: Arapahoe County, Colorado, USA
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Kiwi911,
I removed my dust shields in 1968. No problems since. The downsides occur if you drive in snow / slushy freezing conditions on the highway where you seldom use the brakes. Snow/ice can accumulate in/on the brakes. Another downside is if you regularly drive unpaved/gravel roads. There is increased possibility that a stone can lodge in your brakes. (Even with the dust shields, this is not uncommon if you spin-off into a gravel pit at a DE ![]() Yes, removing the dust shields increases air flow to the brakes and keeps them noticeably cooler at DE events. ![]() Ducting fresh air to the brakes is of significant benefit. I question the effectiveness and effect of a restrictor plate between the front brake rotor and hub – I don’t add the un-sprung weight. Some ‘big iron’ (5-liter racers) add water vapor cooling (like the ‘Rubbermaid Solution’) to the airstream to their brakes. This is (fortunately) unnecessary with a 911 although probably with a tracked Turbo Cayenne or Panamera it would save a set of brakes. ![]() Best, Grady
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Quote:
When I tracked my '76 C3 I found the brakes to be marginal, cool them in every way possible including removal of the dust shields and addition of A arm scoops is good There are much better pads and fluid available now then back then too, This is one case where SRF is worth it
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Bill Verburg '76 Carrera 3.6RS(nee C3/hotrod), '95 993RS/CS(clone) | Pelican Home |Rennlist Wheels |Rennlist Brakes | |
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Quote:
What pads would you run for 80% road / 20% track use. I wish to avoid squeeling etc. if possible. Thanks in advance. |
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Apologies, but can you show me a picture of the restrictor plate you mention - I don't understand what you are saying here (thanks for you patience) |
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Join Date: Jan 2006
Location: Santa Barbara, CA
Posts: 2,307
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Ferodo 2500's. No squeal. No dust. Inexpensive; Pagids add little for twice the price. Fine for street and track with decent fluid and cooling.
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jhtaylor santa barbara 74 911 coupe. 2.7 motor by Schneider Auto Santa Barbara. Case blueprinted, shuffle-pinned, boat-tailed by Competition Engineering. Elgin mod-S cams. J&E 9.5's. PMO's. 73 Targa (gone but not forgotten) |
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Join Date: May 2007
Location: Fortuna, CA. On the Lost Coast near the Emerald Triangle
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+1 on Ferodo 2500's. However mine squeak when warmed up!
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Gordon ___________________________________ '71 911 Coupe 3,0L outlawed #56 PCA Redwood Region, GGR, NASA, Speed SF Trackrash's Garage :: My Garage |
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Join Date: Jan 2006
Location: Santa Barbara, CA
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Have you tried a bit of anti-seize on the back? Have used maybe 15 sets, have never heard a squeak
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jhtaylor santa barbara 74 911 coupe. 2.7 motor by Schneider Auto Santa Barbara. Case blueprinted, shuffle-pinned, boat-tailed by Competition Engineering. Elgin mod-S cams. J&E 9.5's. PMO's. 73 Targa (gone but not forgotten) |
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Under the radar
Join Date: May 2007
Location: Fortuna, CA. On the Lost Coast near the Emerald Triangle
Posts: 7,129
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Where do you put the anti-seize? Between the piston and pad?
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Gordon ___________________________________ '71 911 Coupe 3,0L outlawed #56 PCA Redwood Region, GGR, NASA, Speed SF Trackrash's Garage :: My Garage |
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Location: Santa Barbara, CA
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Yes, on the back of the pad. Smear on a very little. Some believe filing the pad lightly to bevel the edges maybe 1/16" helps too; I'm less sure.
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jhtaylor santa barbara 74 911 coupe. 2.7 motor by Schneider Auto Santa Barbara. Case blueprinted, shuffle-pinned, boat-tailed by Competition Engineering. Elgin mod-S cams. J&E 9.5's. PMO's. 73 Targa (gone but not forgotten) |
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