Valve Cover Clearence - Team Camaro Tech
 
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post #1 of 10 (permalink) Old May 8th, 12, 05:36 AM Thread Starter
Rick
 
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Valve Cover Clearence

Does anyone have any pictures of their valve covers on the brake booster side. I need to see how the covers have been trimmed for cleaence. I was going to cut a secton out of the booster and weld it up or trim the cover. My problem is the car has a 555 ReherMorrison engine with very tall covers for the stud girdle.

Thanks
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post #2 of 10 (permalink) Old May 8th, 12, 06:22 AM
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Re: Valve Cover Clearence

What diameter booster do you have. If it's an 11 inch maybe you can install a smaller diameter like 9 or so. I'm sure a team member has the right solution for you.

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post #3 of 10 (permalink) Old May 8th, 12, 08:50 AM Thread Starter
Rick
 
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Re: Valve Cover Clearence

I think it is an 11 in......maybe I can find one.

Thanks
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post #4 of 10 (permalink) Old May 9th, 12, 10:22 AM
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Re: Valve Cover Clearence

I have a 7" booster on mine. No clearance issues at all.


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post #5 of 10 (permalink) Old May 9th, 12, 10:46 AM
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Wink Re: Valve Cover Clearence

Quote:
Originally Posted by rick04roady View Post
... I was going to cut a secton out of the booster and weld it up ...

Thanks
You CAN NOT cut a section out of a booster for 'Clearence' (or Clarance )
You need a smaller dia. booster (dual Diaphragm) ... or maybe a HydroBoost would be the best upgrade if you already have power steering ... to clear a Tall BBC.

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post #6 of 10 (permalink) Old May 9th, 12, 06:33 PM Thread Starter
Rick
 
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Re: Valve Cover Clearence

Found a 7" that will fit......
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post #7 of 10 (permalink) Old May 10th, 12, 01:12 AM
 
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Re: Valve Cover Clearence

Hi Mark does the 7'' boster work as good as the 11'', this is a decsion i will come up against down the track. Allan
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post #8 of 10 (permalink) Old May 10th, 12, 08:06 AM
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Wink Re: Valve Cover Clearence

Quote:
Originally Posted by skyper View Post
Hi Mark does the 7'' boster work as good as the 11'', this is a decsion i will come up against ...
Allan
When making a decision on a booster (or power braking assist) to a relatively 'stock' sized braking system, you need to be aware of the type of booster you select and be sure it has roughly the same effective diaphragm area of the unit you are replacing in this case.
A 'Dual Diaphragm' 8" booster has an effective diaphragm area of @100 square inches.
The OEM GM 'Single Diaphragm' 11" boosters have an effective area of @96".
So the selection of an 8" (DD) booster will give roughly the same reactive braking effect as the OEM unit did.

If you're also swapping in a cam - and/or other engine modifications - that will decrease the available vacuum signal (readings) to the booster, then you need to take that into consideration also and maybe size for it if possible in your build.
Or ... if you're dropping the signal - and/or can't depend on it due to high throttle loading in competition uses - then it's highly recommended you look upgrading the braking system and even consider an alternative booster system, like 'Hydro-Boost' or a resized non-boosted manual braking system to handle your needs.

Hope this helps

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post #9 of 10 (permalink) Old May 11th, 12, 03:05 AM
 
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Re: Valve Cover Clearence

mate it gets technical doesn't it..... want to go big brakes and clear a 572 BB rocker cover with the booster ...... so i will research it some more as the time get nearer, my first camaro was an ss and had the disc brakes standed,my latest car is drums Allan
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post #10 of 10 (permalink) Old May 14th, 12, 10:43 AM
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Re: Valve Cover Clearence

Quote:
Originally Posted by skyper View Post
Hi Mark does the 7'' boster work as good as the 11'', this is a decsion i will come up against down the track. Allan
The booster works great in my car. My car has 4 wheel discs and stops and brakes great. But, my car is blown and I don't have any issues with vacuum. A "big" cammed car would be a different story. A vacuum pump might be in order there.

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