As you have the servo already I'd just tap the manifold somewhere to suit. You only need to do 1 side. Unless you want to do the other port as well, and run a PCV valve into it. Works for me...
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| Do i really need a brake booster? https://www.ausmini.com/forums/viewtopic.php?f=2&t=80682 |
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| Author: | Eenii Meani [ Tue Mar 12, 2013 1:55 pm ] |
| Post subject: | Do i really need a brake booster? |
I have never had a brake booster on any of my disc brake minis previously. The one I have now came with one fitted and is getting the vacuum from the manifold, which was a goose neck style for a Dellorto. The car is running 8.4 Discs. I am now fitting a Russell Engineering manifold which doesn't have the option for the vacuum. I was wondering about opinions on whether the booster should be retained or I should not fit it? |
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| Author: | drmini in aust [ Tue Mar 12, 2013 1:58 pm ] |
| Post subject: | |
As you have the servo already I'd just tap the manifold somewhere to suit. You only need to do 1 side. Unless you want to do the other port as well, and run a PCV valve into it. Works for me...
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| Author: | Harley [ Tue Mar 12, 2013 2:43 pm ] |
| Post subject: | |
Boosters are personal choice. Some people like them, others dont. I haven't got one in my car which suits me fine........for the first 30 minutes of driving. 
That said, I wouldn't run hard / sport pads without one though. |
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| Author: | drmini in aust [ Tue Mar 12, 2013 3:31 pm ] |
| Post subject: | |
I run S brakes with Greenstuffs and no booster, and to me it's fine. It pulls 1.0G on a brake test. But I let my Bogandore neighbour drive it once and he said f***, where's the brakes!!
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| Author: | Eenii Meani [ Tue Mar 12, 2013 4:14 pm ] |
| Post subject: | |
If I tap in a vac line will it affect the flow rate of the manifold? I don't mind a hard pedal. I am thinking of going non boosted and if I don't like it then add the booster later. The last disc brake set up was Cooper S non boosted. Seemed alright for the year or so I had the Mini for as a daily driver. |
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| Author: | drmini in aust [ Tue Mar 12, 2013 6:29 pm ] |
| Post subject: | |
Nope it won't affect flow under power. It only pulls vacuum when you have your foot on the brakes. The vacuum is then held in the booster by a check valve at its hose connection. |
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| Author: | smac [ Tue Mar 12, 2013 7:08 pm ] |
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drmini in aust wrote: I run S brakes with Greenstuffs and no booster, and to me it's fine. It pulls 1.0G on a brake test.
That's interesting/good to know. The performance test here for a low volume modified vehicle (what you guys call 'engineered') is .65G, with 68kg force on the pedal causing maximum breaking effect. |
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