Distributor Curve Specs

[Andrew P.]

Hello,

I am in the process of rebuilding my distributor and was hoping that someone could verify these Distributor Specs. (Joe L?)

Dist # 1112050

Dwell: 29-31 Deg

Centrifugal Advance: (Crank Deg @ RPM)
0@865, 2@1335, 11@2400, 18@4200

Vacuum Advance:
0@8", 15@ 15.5"

Thanks,
Andrew Papanicolaou
71 350/4spd

[Donald L.]

Re: Distributor Curve Specs

Try this link.

http://www.lbfun.com/warehouse/tech_...ve%20specs.pdf

[Andrew P.]

Re: Distributor Curve Specs

Hello,

Thanks for the reply and link. That is where I got the specs from as well. Just wanted to make sure they were accurate as there was no author listed.



Thanks,
Andrew Papanicolaou

[Terry M.]

Re: Distributor Curve Specs

Delco book says:

Dwell 27-31* with a footnote that this is satisfactory range but setting to 29* gives a .016" point opening

Start distributor 650 rpm = 0-2*
1200 rpm = 4.5-6.5*
2100 rpm = 8-10*

It should have a 1973437 vacuum unit
7-9 in Hg to start moving
16-18 inches Hg for maximum advance
Maximum distributor advance for vacuum unit = 8*

[John H.]

Re: Distributor Curve Specs

Dist # 1112050

Dwell: 29-31 Deg

Centrifugal Advance: (Crank Deg @ RPM)
0@865, 2@1335, 11@2400, 18@4200

Vacuum Advance:
0@8", 15@ 15.5"

Andrew -

Those specs are straight out of the 1971 Chassis Service Manual (Specifications section, page 19), except the CSM shows the vacuum advance max as 12* @ 15.5" Hg.