Re: Brake Booster Conversion

Posted by Moms 54 On 2015/7/24 16:58:08

Yes I shopped hard there was a company that had made the complete setup but they stopped producing them due to low sales of them units.

I did some time speaking with a rep from one of them large brake supplier companies and all they could sell me was a 9" dual brake booster and a purotioning valve.

He had agreed with me that anything smaller than a 9' dual booster would be pushing it in the case of a panic stop!

Figure adding weights; of the cars wet weight then adding in the person or persons and cargo carring weights it is a lot of weight.

My purportioning valve sits nicely enough away from any of the body so no banging of the original structure.
Although I am changing it to a bottom mount under the master so I can run my brake lines out from the passage way of the vent tube.

The vent tube I will configure in but first I need to explain how and why I went with the booster I went with..

Before doing anything I thought of the things I wanted and studied my compartment.

I made a desicion that I wanted a booster that was away from the firewall leaving me about 6 inches in distance apart plus the circumference space between the firewall and booster is now mainly open.

By doing it this way I benefit with all of the things I want to do and possibly more.
(Rather than having a flush mounted booster)

1.) Keep the vent tube.

2.) Have room for my wires behind the booster.

3.) Keep the regulator mounted back there.

4.) Having a place for a trans dipstick to mount to behind or along side the back portion of the booster
(GOD BLESS)


The booster mounting bracket firewall side has three mounting holes on each side, two of which are lower away from the four needed.

So the one side of that bracket over lapped the vent opening by an inch so i cut a relief cut on that booster bracket and bent that up leaving it at a 45deg. angle then cut off the other side of the relief porion so that would not block the vent hole..
(Now I have a bolt mounting hole if needed)

I had done the same to the other side of that booster mount by leaving that mount hole upward at 45 deg I then will use this hole to mount my Trans stick configuration.. (Yet to come)


The vent tube hole on the firewall to the booster is about 6 inches gap space, although with this what I am planning on doing is to take that first portion of the vent tube that mounts to the firewall and move it towards the front, it also holds in the vent door so that can not go back there again.
(Space is too short having the vent door back there)

I will swap out that vent portion with the longer front portion vent tube and have a cut out to allow the booster to fit into like a puzzle fitting.
( Not cutting the tube completly through, leaving it as one piece)

That cut out hole will have a molded flashing the shape of the booster inserted into the vent and then have an overlaped flange on the tube to be rivited on and a layer of neopreame to be glued on for rattling purposes.

Now the vent tube at that booster location will have an inside halfmoon opening leaving about 3-1/2 inches at it's widest point.

The remaining portion of the that vent tube will now be infront of the master cylinder allowing me to mount the other vent tube with the door flapper in it.

So doing this I am moving my vent door from the rear now to the front and then extending my vent cable to the door
hinge...
( There will be a bit of configuration on the vent tube mounting flange)

Having something is better than having nothing.