Can anyone confirm that the 79-80 brake boosters are smaller then the later models?

Does anyone know how much smaller the old models really are?

 

i know you can install a T2 booster in 81-85, but theres not enough room in my SA. so im pretty sure the SA booster is smaller.

 

to add to this, the 79 booster is smaller than the 80, though they interchange no prob-
don't know about going from SA/80 to FB 81+
sorry
Stu Aull
80GS
Alaska

 

79 is really small. 80 is a little bigger.
81-85 is really big.
you cant fit a 81-85 in a 79 or 80.

 

I need the smallest booster availble does anyone know of any other cars that have the same booster bolt pattern as the rx7 but have small boosters?

 

The '79 booster is tiny. How small do you need? What about no booster at all?

 

advanced auto should have the part. You just need to go order the part from the store.

-nick-

 

here is pic of a 79 and a later fb.
i cant really get a good measurment but it looks like 9 in. for fb and 7 in. for 79.

 

See if you can find the 80 its alittle bigger but should fit.

 

no booster at all?

 

unplug the brake booster hose to the manifold. lets see if your car will stop on a dime.

 

called all the local parts chains and none of them were showing any stock in the whole country

anyone have a '79 booster they want to sell?

 

Ask for the 80 they have them. It will fit even though it is a little bigger. I got mine from autozone I think it cost about $100 had it in the next day.

 

I need all the space I can get, I have big valve covers to clear my shaft rockers, unfortunatly the booster is in the way.

 

i'll sell the one in the pic for $45 shipped.
pm me.
--adam

 

your missin out though by buyin an old one. the new power brake booster I got sure did help my engine. I had a vacuum leak before , and its great now.

-nick-

 

how much did you pay for a new fb one?

 

I have the big 85 SE booster, but I am taking it off due to engine clearance issues.

I realize the brakes will be a little harder to push, but I will also get better feel/feedback

 

no its not. The problem is you will need to relocate the clutch master.

 

I paid 81.88 for the brake booster, and the core return was 29.99

So in reality I ended up paying


51.89.

http://www.partsamerica.com/ProductL...e+Unit&ptset=A

 

not in an 84 chassis, I won't have a problem as they are designed to work with the biggest booster and using the smaller '79 booster gives more clearance all around.

plus I don't have a clutch master/slave either

 

just get whats designed for the car?

 

Perhaps you should work on your reading comprehesion skills, then you would not have written this post. Go back and read between the lines.

 

Damn my reading skill <Slaps self in face>


http://www.partsamerica.com/ProductD...pe=250&ptset=A


Is this the correct 1979 Mazda Rx-7 Power brake booster?

 

I think you still missed the point. Reread post #s 14 and 21. If you read between the lines, you will understand why he needs more clearance than the rest of us, regardless of the body year.