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#1
05-01-2005, 03:56 PM
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Will a 9" single diaphram booster provide enough boost for a 67 Firebird with 4 wheel disc brakes? Also do I need a special master cylinder or will one for front wheel discs rear drums work? I understand I need a special porportioning valve which I have.
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67 Firebird Best time 1.53 60' [email protected] 1/4 [email protected] 1/8 3500lb. leaf springs |
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#2
05-01-2005, 03:56 PM
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Will a 9" single diaphram booster provide enough boost for a 67 Firebird with 4 wheel disc brakes? Also do I need a special master cylinder or will one for front wheel discs rear drums work? I understand I need a special porportioning valve which I have.
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67 Firebird Best time 1.53 60' [email protected] 1/4 [email protected] 1/8 3500lb. leaf springs |
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#3
05-07-2005, 06:03 AM
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Probably not.
Yes. Yes, you will.
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I'll be back... |
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#4
05-08-2005, 05:29 PM
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We did a 67 Mustang last week with S10 calipers and manual master; worked nice- stopped well and VERY easy to modulate stopping power.
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#5
05-10-2005, 11:35 AM
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by 455earlybird:
Will a 9" single diaphram booster provide enough boost for a 67 Firebird with 4 wheel disc brakes? Also do I need a special master cylinder or will one for front wheel discs rear drums work? I understand I need a special porportioning valve which I have. </div></BLOCKQUOTE> If you are using disc all around you should use a 4 wheel disk master cylinder and combination valve. I think th 9" will do the trick but you might want to let someone else chime in on this. Here is my setup on my 67 convert for brakes Front - 69 Chevelle single piston Rear - 78 Seville with parking brakes. These are same size as the single piston on the front. Hyrdo boost/master cylinder/combo valve from 76 Eldorado. I'm using the hydroboost because my cam probably won't draw enough vacuum. This master cylinder matches the caliper size I am using also. I'll probably need to make custom length rear parking brake cables. I'll find out in a few weeks when I finally get my brakes fully installed. While the car is still in progress I have talked to others with this setup and it works GREAT from their reactions. But bottom line master cylinder and prop/combo valve need to match they type of brakes you are using.
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67 Firebird Convert 455 +.060 TH400 74cc KRE d-ports piston dished 16cc H-beam rods Comp Cam 305-AH-8 cam 108* LSA 253/260 @.050 duration .577/.594 lift w/1.65 rockers Ford 9" 3.50 Detroit Locker M/T Sportsman Radials 31x18x15 on Convo Pro 15x15s |
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