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Total 13 documents matching your query.

1. [Healeys] Girling brake boost ratio (score: 1): Author: "David Masucci" <drmasucci@comcast.net>; Date: Thu, 20 Aug 2009 13:19:55 +0000; Hi all, Does anyone know the boost ratio of the stock Girling brake servo in a BJ8? Last night I replaced my original unit with the 8 inch Powertune unit (PN LE10117). The boost ratio is 3.00:1 which; /html/healeys/2009-08/msg00854.html (7,163 bytes)
2. Re: [Healeys] Girling brake boost ratio (score: 1): Author: Alan Seigrist <healey.nut@gmail.com>; Date: Thu, 20 Aug 2009 07:52:46 -0700; The original boosters provided a pretty hogh boost although I don't know the ration per se. I mush prefer the aftermarket boosters with a little less boost - it is better for feeling the brakes whil; /html/healeys/2009-08/msg00856.html (7,768 bytes)
3. Re: [Healeys] Girling brake boost ratio (score: 1): Author: Bob Spidell <bspidell@comcast.net>; Date: Thu, 20 Aug 2009 15:11:21 +0000 (UTC); This is Alan's brain on a Crackberry ;) bs David - The original boosters provided a pretty hogh boost although I don't know the ration per se. I mush prefer the aftermarket boosters with a little les; /html/healeys/2009-08/msg00857.html (8,057 bytes)
4. Re: [Healeys] Girling brake boost ratio (score: 1): Author: <robertduquette@sympatico.ca>; Date: Thu, 20 Aug 2009 15:32:24 +0000; _______________________________________________ Support Team.Net http://www.team.net/donate.html Healeys@autox.team.net http://autox.team.net/mailman/listinfo/healeys http://www.team.net/archive; /html/healeys/2009-08/msg00860.html (8,343 bytes)
5. Re: [Healeys] Girling brake boost ratio (score: 1): Author: "Earl Kagna" <kags@shaw.ca>; Date: Thu, 20 Aug 2009 09:14:47 -0700; Just went through all of this when re-boostering several local BJ8's. We decided on PBR (Australian) boosters. They are (or were) made in a couple of vacuum chamber sizes, and 3 or 4 body bore sizes; /html/healeys/2009-08/msg00863.html (9,764 bytes)
6. Re: [Healeys] Girling brake boost ratio (score: 1): Author: Bob Spidell <bspidell@comcast.net>; Date: Thu, 20 Aug 2009 16:29:04 +0000 (UTC); OK, now I got a question: is the 'boost ratio' a measure of the amplification--i.e. 3.25 applies 3.25 times the force applied at the pedal? Don't see how that could be stated so unequivocally, since; /html/healeys/2009-08/msg00864.html (9,700 bytes)
7. Re: [Healeys] Girling brake boost ratio (score: 1): Author: andy pole <ampole@hotmail.com>; Date: Thu, 20 Aug 2009 17:06:03 +0000; Has made me wonder as well. I had my original bj8 girling mk2a booster rebuilt by Past Parts lts here in the uk. The test figures they supplied for the rebuilt unit are: primary bar = 20 vacuum = 24; /html/healeys/2009-08/msg00868.html (8,659 bytes)
8. Re: [Healeys] Girling brake boost ratio (score: 1): Author: Mark Schneider <mandmschneider@comcast.net>; Date: Thu, 20 Aug 2009 10:32:14 -0700; Questions about the Lockheed replacement servo. I have had one in my BJ8 for several years. Every once in awhile the brakes seem to grab somewhat harshly at the very end of a deceleration and stop.; /html/healeys/2009-08/msg00871.html (8,255 bytes)
9. Re: [Healeys] Girling brake boost ratio (score: 1): Author: "Earl Kagna" <kags@shaw.ca>; Date: Thu, 20 Aug 2009 10:35:13 -0700; The numbers I was given for the PBR VH40 (5/8" bore) are apparently hydraulic inlet pressure. I have no idea as to parameters. 450 in, 1470 out - for a boost ratio of (approx.) 3:25. Similar calcula; /html/healeys/2009-08/msg00873.html (9,281 bytes)
10. Re: [Healeys] Girling brake boost ratio (score: 1): Author: Oudesluys <coudesluijs@chello.nl>; Date: Thu, 20 Aug 2009 19:55:38 +0200; I would check the non return valve of the servo. The brake force should be max when you slow down on the engine creating max. vacuum. Kees Oudesluijs Mark Schneider schreef: _________________________; /html/healeys/2009-08/msg00875.html (9,333 bytes)
11. Re: [Healeys] Girling brake boost ratio (score: 1): Author: Warthodson@aol.com; Date: Thu, 20 Aug 2009 20:44:05 EDT; As I understand the servo, vacuum pressure is applied to both sides of the piston. It is atmospheric pressure that creates the "boost". Does the boost really vary with the amount of vacuum or is it a; /html/healeys/2009-08/msg00898.html (10,094 bytes)
12. Re: [Healeys] Girling brake boost ratio (score: 1): Author: Bob Spidell <bspidell@comcast.net>; Date: Thu, 20 Aug 2009 21:40:14 -0700; Vacuum is applied to both sides of the vacuum piston when brakes aren't when the brakes are applied atmospheric air is applied to the 'top' of the piston. The difference between the vacuum and atmosp; /html/healeys/2009-08/msg00912.html (9,507 bytes)
13. Re: [Healeys] Girling brake boost ratio (score: 1): Author: Oudesluys <coudesluijs@chello.nl>; Date: Fri, 21 Aug 2009 08:34:39 +0200; The amount of boost depends on the vacuum. when you press the brake pedal with the engine switched of and start the engine up you will feel the pedal going down slightly as the vacuum builds up. Kees; /html/healeys/2009-08/msg00915.html (11,490 bytes)

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