Another brake booster question

[Roysneon]

hmm, I fitted a 924 booster and only had to cut off about 3/8" of threads. that's it.

Good, that's what I have. I didn't end up even getting the E32 parts afterall.

[Mr. Horsepower]

You can do that, and people have. Part of the reason I wanted the 944 is because it's smaller, looks a little better in the engine bay and has the same power as the stock one. And it was dirt cheap.

Now you are fooling yourself?
I had the Vw Golf MK1 (rabbit) 7" booster with E30M3 23mm master cylinder last season, and it was puking hard. It was no go for a street car.

I just bought a Audi dual membrane booster, but that was only 2cm less in diameter than the 325Ix booster...

I have searched 7" booster on ebay.com, and there I find many dual membrane 7" boosters. Some say "Hot Rod" booster and are chrome, they look very good. And if they are 7" dual membrane they will give more assist than the single membrane 7" Golf MK1 booster.

Problem is that I keep sending email to sellers asking about the length of the rod, total length and the distance between the firewall mounting studs..But no answer. I have now bought 4 boosters for my swap..

-Golf MK1 (fit nice, but hard pedal)
-E34M5 3.6 (same as 325IX, to much cutting in the intake plenum)
-E28 hyd.booster (to much hoses, balls and tanks)
-Audi A4 1.8T B5 (2cm less diameter as Ix)

[E30Strube]

I've found a couple in my searches too, but I have no experience with any of them...

http://www.waylayedinc.com/Waylayed2010/ww/products/Chrome-Dual-Diaphragm-Booster.html

http://www.summitracing.com/parts/SUM-760121-BLK/

[Mr. Horsepower]

That is just the same as the one I have been looking at.

But need to find out if the E30 master cylinder will fit, because then I can use the Audi 80 25mm one that is much shorter than the E30 one.

I got an answer that every corvette GM style master would fit, but that don't tell me anything.

[87e30]

Don't extend the brake pedal out too far though. It needs a very slight wiggle to it, I had mine extended out too far and I was having booster leak problems. Not sure exactly what was happening but at slow speeds at low rpms I was building up pressure and my brakes would apply.

Moral of the story, don't put the clevis in tight, just at it's natural place where the brake pedal is extended.