Yarb

ZCD sells the plate. You’ll hav to polish it up before you put it on that beautiful manifold....

Thoughts and Prayers for you and your family

Have you checked the fluid level in your master cylinder?

ZCD 800-1796 $20.50

I’ve heard that as well from another member. I can check the order number if you like.

Have you checked ZCD? Used their stainless lines on my upgrade. Don’t have a measurement for you. Same lines they provide in their kit.

Just sent you a pm

It’s the 10” booster from a 79zx. 1980 & 81are supposed to be the same but I can only say from experience the 79 is a true bolt on upgrade without modifications.

They had to find a core for me. Might want to check, there getting rare. Even if you don’t use it right away. Should have taken a side by side picture of them to show you the difference.

Are you looking to upgrade the booster? From what I’ve read on different posts was that made a big difference with the willwood as well. Something to do with the brake pedal travel being shorter.

Yes Sir. I notified ZCD with the diagram and notes to pass along/add to the sales post when purchasing the plate to help others. Guess it didn’t make the press!

Here’s a new one from Cardone. Bought one... good quality for the money.

Good deal!

Here is a post that Captain Obvious contributed that fixed my same issue. I plugged both holes although only one is necessary with tapered rubber plugs from Ace hardware. Covered each with high temp silicone. These can be removed if necessary if needed. Here’s the diagram. Thanks CO!!

Does it have the OE pump installed?

Have you thought about using the 15/16 Mc off the 79zx? I upgraded to the 79 booster and master cylinder on my 78. Bolted right in with clearance. The booster is the same depth but larger in diameter. Haven’t had the car on the road yet but what I’ve read it performs well.

I used these folks. They were easy to work with. You can send them your unit to rebuild or buy theirs and send in a your core. They will also powder coat the booster if you like. Mine came back with a nice primer coat ready for paint. Very reasonable. Little over $100 a few months ago. North Power Brake Exchange, Inc. - San Jose, Ca. Phone: (408) 292-1305 Fax: (408) 294-6817 South Power Brake Exchange, Inc. - Bell Gardens, Ca. Phone: (562) 806-6661 Fax: (562) 806-3570

Nice work!

I’ve used that 13/64 bit quite a few times with good results. As you mentioned centering the bit is key.

CO, Is the tap size Ilisted correct?

Did you give the Kroil oil a shot? If that didn’t work for me I ended up drilling it out and re- tapping the hole. Irwin 6mm - 1.00 plug tap 5mm bit Could not locate a 5mm so I used a 13/64 5,2mm

Here’s a diagram CO provided when I had a problem after blocking off the bcdd. Plugged the orifice and solved the high idle problem.

CO, those look like the electric mirrors off of a ZX and the joy stick controls.

Bought the AcDelco from RA. Absolute garbage. The one in the picture looks much better than what I received.

I had one years ago. Put a kirker header on it re-jetted the carbs. Z1 Rocket