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Old 07-26-2005, 08:20 PM
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monte carlo breaks

I want to improve my 85 monte's stopping power (right now it won't even lock up the tires when I stand on the brake peddal).
I was thinking of adding a vacuum pump to assist the brake booster, will this work?
I have a (belt-driven) vacuum pump off of an 81 Buick Electra that had a 307 (I think). Will this pump bolt up to a 305?
Has anyone ever done this before?
Any help/tips are greatly appreciated in advance.

Thank You
JZ

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Old 07-26-2005, 08:49 PM
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this is only my opinion, but before you try some add ons, you should look for the problem with the brakes. a 1985 monte should have alot better brakes than that.
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Old 07-26-2005, 08:54 PM
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It used to be able to lock up the tires, but I've put some much better rubber under it since then.
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Old 07-27-2005, 02:59 PM
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Assuming your booster is working normally now, adding more vacuum will not increase the braking power. If you're running a big cam and don't have enough vacuum to start with, that would be a different story.
G bodies don't have spectacular brakes from the factory. The front disks are 10.5". A very popular upgrade is to put 11" or 12" disks from a caprice on the front. The cop cars and station wagons had the 12" rotors. This swap requires aftermarket upper control arms. I planning on doing it, but haven't got around to it yet. I've heard it really improves the braking though. Do a google search, there is a lot of info regarding this swap. Very popular with the monte SS and grand national guys.

Another easier upgrade is to put manual brake S10 wheel cylinders on the back drums. The manual brake S10's have 7/8 wheel cylinders. G bodies (and power braked S10's have 3/4 wheel cylinders).
dh
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Old 07-27-2005, 06:05 PM
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If only I knew about the Caprice rotor swap option 2 years ago, BEFORE I bought dropped spindles for the fron end >: (
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