Electric Vacuum Pump
Thread Starter
Instructor
Joined: Jun 2005
Posts: 119
Likes: 0
From: Ringgold Georgia
Electric Vacuum Pump
How many inches of Vacuum does/should an electric pump pull to actually make the brakes work well and or would one of those hydroboost units be a better option. Would the pump be more efficient with a vacuum can. Has anyone delt with this and what can or should I expect.
Race Director
Joined: Apr 2003
Posts: 17,700
Likes: 1,667
From: moraga ca
Some of the GM cars of the 80s or 90s came with electric vacuum pumps for the power brake booster. Might want to google it to see which years were involved. I bought one from ebay years ago and my winter project was to try to use this thing for an engine vacuum evacuator if it'll pull enough vacuum.
Race Director
Joined: Apr 2003
Posts: 17,700
Likes: 1,667
From: moraga ca
It's still on under the workbench so I don't know how effective it will be. I need to test it's vacuum pull first to see if it's worth my time. It's been a few years and I don't even remember what car it was for. It might have been a 90's Caddy. I'll take a pic of the thing if I get a chance. Willie
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Race Director
Joined: Apr 2003
Posts: 17,700
Likes: 1,667
From: moraga ca
I just checked on the vacuum pump shown in my earlier post. It is a unit made by Stainless Steel Brakes made for supplying vacuum for power brake applications. I went out last night and was surprised to find the unit pulled 23" of vacuum. I saw the same unit in Summit as part of a kit with fittings for $269.
Pro
Joined: May 2002
Posts: 678
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From: Lengede
I just checked on the vacuum pump shown in my earlier post. It is a unit made by Stainless Steel Brakes made for supplying vacuum for power brake applications. I went out last night and was surprised to find the unit pulled 23" of vacuum. I saw the same unit in Summit as part of a kit with fittings for $269.
