Whats' the actual diameter of the e21 booster??

[catch22]

I tried searching and i dont believe ive seen an actual measurement of it anywhere anyways.. sooo anyone, of top of your head?

thanks!

[asubimmer]

if I had a tape measure handy I would measure mine. Why does it matter though?

[catch22]

It only matters since I already bought a VW booster.. and if the diameter does not differ much between the Mk2 VW and the e21 id rather keep my booster than spending more money and replacing it with the e21 one.

:)

[catch22]

bump?

[Mike B.]

Does the Mk2 booster fit?? If it does, why even worry about the E21 booster?

[Jason89i]

http://www.r3vlimited.com/board/showthread.php?t=78855&page=6&highlight=geo

bottom of page

E30 stock booster
10.75” diam x 4.5” thick (firewall to master mounting face)
Firewall mounting holes = 2-7/8 x 2-7/8”
Firewall center hole req’d = 2.37”
Firewall to end of threaded rod = 4.125” (m10x1.5)
Master studs = 2.37” c to c
Master bore hole = 1.67”

E21 320i stock booster
9.5” diam x 3.5” thick (firewall to master mounting face)
Firewall mounting holes = 2-7/8 x 2-7/8”
Firewall center hole req’d = 2.37”
Firewall to end of threaded rod = ?????” (m10x1.5)
Master studs = 2.37” c to c
Master bore hole = 1.67”


if you can forward the other dims, i can updated this post to include the mk2 booster. cheers, jason

[SchnellerVert]

MK2 booster fits. Check over on www.e30zone.com Their is a few guys there that used it. I think Ian is using it for his conversion he does for people.

[catch22]

MK2 booster fits. Check over on www.e30zone.com Their is a few guys there that used it. I think Ian is using it for his conversion he does for people.

*cough* http://www.r3vlimited.com/board/showthread.php?t=91383 *cough*

European market Mk2 I suspect