early 944 brakes, stock MC....dosent feel right

[Wally]

Yes, that is weird.
Weirder is that my early 944 M/C has 23 cast in into the M/C housing for front and 19 cast in for the rear. This would 'suggest' a 'perfect' 23,00 mm and a exact 19,00 mm.
I haven't taken it apart to verify this tho (and its on the car now)
Maybe there are more different sizes made to suit different countries...who knows?

Best regards,
Walter

[Richie]

Hello,

I have lent (sp?) my aluminum 944 Turbo MC to a friend but I hope to get it back one of these days.
Not sure anymore what it said on the outside but as soon as I get it back I'll take it apart and measure the pistons.

Cheers,
Richard

[judgie]

my 85 944na m/c is 23mm/19mm.why would the bores be 12/16" when origenaly from germany and would be metric.
the bias realy is a presonal thing , i run 85 na brakes all round and have the 23 to the rear and 19 to the front with 7x16 205/55/16 front and 8x16 225/50/16 back.works spot on for me.
cheers rob

[Angelo Amato]

pics

20.65mm dia. bore to run my setup comprising front audi coupe calipers and rear mk4 alloy calipers - cheap e-bay bargain new genuine ATE item ! - not bled them yet - hope it works ! straight bolt on fitment NO mods needed to mast cyl. only rod off brake pedal had to be lengthened 15mm. WHAT A FIT THOUGH !

[Angelo Amato]

amazing 30 years difference !

[MattKab]

Yeah, 30 years on and still imperial!

I bet the SAE are to blame for that

[Pillow]

This 23/20 versus 23/19 really pisses me off with 944 N/A brakes!

with a 23/20 (actual 23.81 / 20.64) = 1.69 bias (a little too high I think)

with a 23/19 (actual 23.81 / 19.05) = 1.44 bias (as staded before and a very good bias IMO!)

Arg!