440 Source ready to run distributor - tuning?
#820842
10/03/10 03:03 PM
10/03/10 03:03 PM
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Joined: Jan 2010
Posts: 456 Santa Barbara, CA
HitIt
OP
mopar
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OP
mopar
Joined: Jan 2010
Posts: 456
Santa Barbara, CA
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Hello all, I have one of the source ready to run electronic distributors. Is there any way to tune the advance curve?
It seems like my car wants to run better with a lot of initial advance, but then the curve is too great and I'll get it to ping too much.
I have it running off ported vacuum and I guess I could try not having the vacuum advance at all but I prefer it if there is no way to change the advance curve.
Thanks for all ideas.
very clever dinner. appetizing food fit neatly into interesting round pie.
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Re: 440 Source ready to run distributor - tuning?
[Re: HitIt]
#820843
10/03/10 06:04 PM
10/03/10 06:04 PM
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Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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I'd set the initial to where your eng wants it (vac gauge method) then w that figure in hand shorten the slots to give you 36-38 total for a big block (& this initial and total are set w vac can hose disconnected/plugged)then play w the springs w the lightest combo it will handle staying just under the pinging point at WOT up thru the gears on your hottest/driest day. Note: any ping you can hear is WAY too much. then hookup the vac can and w a 3/32" allen wrench turn it cw to make the curve start as soon as possible staying just under the pinging limit at PART throttle (high vacuum) at an RPM high enough to where the springs are already maxed out and may need to find a can w less adv or solder feeler gauge strips on yours on either side of the notch on the arm to limit it's travel (but know the allen wrench adjusts when the curve starts (in hg of vacuum) and the notch on the arm limits how much TOTAL a particular can can offer). Vac adv alters rotor phasing so drill a 1/2" hole in the dist cap top flat halfway between the center terminal and the #1 terminal and shine your timing light in there at speed to freeze the rotor & see if it is reasonable close to the underside of the #1 cap terminal. Short answer, I have not owned one of those units but I'm assuming it has slots like std ones. Not sure what springs are available these days but on my next one I am going to use a stock light spring w one of the MP super light springs that come 2 in a cellophane pkg & grind off some off of the bottom "tip" of each weight like a comma until I slow the mech curve & get just under the ping point
live every 24 hour block of time like it's your last day on earth
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Re: 440 Source ready to run distributor - tuning?
[Re: HitIt]
#820844
10/03/10 08:07 PM
10/03/10 08:07 PM
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Joined: Jan 2003
Posts: 5,186 Wherever I am.
Junky
master
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master
Joined: Jan 2003
Posts: 5,186
Wherever I am.
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If you'll take the time, search around on www.msdignition.com which has the info you're looking for as far a tuning the distributor. RapidRobert, I believe the poster has an MSD Ready To Run distributor.
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Re: 440 Source ready to run distributor - tuning?
[Re: Junky]
#820847
10/03/10 11:44 PM
10/03/10 11:44 PM
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Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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Quote:
RapidRobert, I believe the poster has an MSD Ready To Run distributor.
yes but how is the mech amt dialed in? It does have a perf curve but that'll need to be changed if he wants it spot on for his app once the initial is finalized for his particular eng/cam setup
Last edited by RapidRobert; 10/03/10 11:56 PM.
live every 24 hour block of time like it's your last day on earth
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Re: 440 Source ready to run distributor - tuning?
[Re: RapidRobert]
#820848
10/03/10 11:55 PM
10/03/10 11:55 PM
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Joined: Nov 2005
Posts: 1,943 San Angelo, Texas, U.S.A.
1968RR
top fuel
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top fuel
Joined: Nov 2005
Posts: 1,943
San Angelo, Texas, U.S.A.
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I've owned a couple of 440 Source distributors, and I think that the older ones used to be ProComps, but I don't think that the new ones are. A guy on the telephone for 440 Source told me that the new ones weren't ProComp, but you never know... They're not all bad, but I now run a Summit (a.k.a. Mallory) distributor. Good luck.
"When I'm in a slump, I comfort myself by saying if I believe in dinosaurs, then somewhere, they must be believing in me. And if they believe in me, then I can believe in me." - Mookie Wilson
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Re: 440 Source ready to run distributor - tuning?
[Re: 1968RR]
#820849
10/04/10 12:42 AM
10/04/10 12:42 AM
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Joined: Feb 2003
Posts: 21,318 Manitoba, Canada
DaytonaTurbo
Too Many Posts
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Too Many Posts
Joined: Feb 2003
Posts: 21,318
Manitoba, Canada
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Quote:
A guy on the telephone for 440 Source told me that the new ones weren't ProComp, but you never know...
From what I've heard they've been denying they're procomp distributors since the beginning. If they're not procomp's then they're direct copies of procomps.
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Re: 440 Source ready to run distributor - tuning?
[Re: DaytonaTurbo]
#820850
10/04/10 02:21 AM
10/04/10 02:21 AM
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Joined: Oct 2003
Posts: 1,371 Costa Mesa, CA
chache876
pro stock
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pro stock
Joined: Oct 2003
Posts: 1,371
Costa Mesa, CA
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Quote:
Quote:
A guy on the telephone for 440 Source told me that the new ones weren't ProComp, but you never know...
From what I've heard they've been denying they're procomp distributors since the beginning. If they're not procomp's then they're direct copies of procomps.
If they are procomp's, I'm sure the two companies have a non-disclosure agreement which states that they cant tell you whether it is.
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Re: 440 Source ready to run distributor - tuning?
[Re: HitIt]
#820851
10/04/10 11:16 AM
10/04/10 11:16 AM
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Joined: Jan 2003
Posts: 5,186 Wherever I am.
Junky
master
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master
Joined: Jan 2003
Posts: 5,186
Wherever I am.
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Quote:
Hi guys thanks for the help. RapidRob thank you for taking the time to write that explaination up. If youre not familiar the 440 Source ready to run distributor is a magnetic pickup electronic dist. http://store.440source.com/Street-Distributor-RB-Ready-to-Run-New/productinfo/117%2D1002/ I think I read somewhere that it's made by procomp. I'll check out that MSD link maybe it's similar. Thanks again for the help.
Not MSD. My bad.
I'm surprised that the "Ready To Run" name can be used by anyone other than MSD.
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