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heliolps2 heliolps2 is offline
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Join Date: Jan 2009
Location: DC
Posts: 1,266
I could be wrong but I think there should be two basic distributors.

Quote ; 911ST

Single Connection Pot
This should be Vacuum-Advance at curse, not at idle, and at speed the Vac-Advance goes away with acceleration and the loss of intake vacuum.

Double Connection Pot:
This would have Vacuum-Retard at idle, and Boost-Retard with on-boost acceleration.

If this is true one should never run without the vac-line connection on the single connection pot disconected.

On the Double Connection pot you might run without the Vac-Retard connected.

Again, I could be wrong on this.

I could see the possibility of a pot that has a single connection that might have 'both' Vac-Retard and Boost-Retard but not just Vac-Retard. Someone used to make a modified pot for a Turbo Charged Corvair that did this.

My yellow beast at an autocross
1986 944 turbo -first car
1997 993 Cab 6 speed-sold
1992 964 C2 turbo
SOLD, 911GT ,CIS, 428 fwhp 450 trq, Carrillo rods, 964 cams, TT retainers,7.5 comp 1.1 bar boost 320 ml black fuel head 009 injectors, 044 pumps, 60-1 T4/T3 dual scroll turbo

Last edited by heliolps2; 09-08-2011 at 02:14 PM..
Old 09-08-2011, 02:09 PM
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