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FBO VAcuum Adavance Distributor? #1153837 01/10/12 08:28 AM 01/10/12 08:28 AM
Joined: Jan 2003 Posts: 5,443 Indiana Y YO7_A66 OP master
YO7_A66 OP master Y Joined: Jan 2003 Posts: 5,443 Indiana	Is anyone running the FBO vacuum advance distributor? The quality looks to be good. Who is the original manufacturer of the unit? The magnetic pickup electrical connector appears to have been replaced with the Chrysler style electrical connector, which tells me that the original manufacturer might be one of the bigger named brands. The magnetic pickup has a .026" gap which might not be a MP unit but maybe a MSD unit. Thanks 7010867-photo.JPG (131 downloads) 1970 YO7 A66 [Canadian Export] F8 Challenger 340 (Currently in shop for stroker assy.)

Re: FBO VAcuum Adavance Distributor? [Re: YO7_A66] #1153838 01/10/12 08:31 AM 01/10/12 08:31 AM
Joined: Jan 2003 Posts: 5,443 Indiana Y YO7_A66 OP master
YO7_A66 OP master Y Joined: Jan 2003 Posts: 5,443 Indiana	This shows the gap at the reluctor. This was run on a dist machine so the gap must be correct but it is just larger than what FBO has run in the past and way larger than the MP spec. I plan on running it this way but I am just trying to find out why this gap is so much larger than the typical .008" from my previous FBO unit. The only guess that I can come up with is that this pickup is another brand. I have read that the MSD magnetic pickups are spec'd out to around .025", so I am guessing that this is a MSD unit modified for a Chrysler harness. Thanks 7010871-photo5.JPG (130 downloads)

Re: FBO VAcuum Adavance Distributor? [Re: YO7_A66] #1153839 01/10/12 09:49 AM 01/10/12 09:49 AM
Joined: Jun 2008 Posts: 3,916 usa L lewtot184 master
lewtot184 master L Joined: Jun 2008 Posts: 3,916 usa	from what i can see everything looks mopar stock to me, pick-up, reluctor, and color coding on the wiring. i wouldn't run that much gap on a stock one, but go ahead and try it; won't hurt nothing.

Re: FBO VAcuum Adavance Distributor? [Re: lewtot184] #1153840 01/10/12 10:03 AM 01/10/12 10:03 AM
Joined: Jan 2003 Posts: 5,443 Indiana Y YO7_A66 OP master
YO7_A66 OP master Y Joined: Jan 2003 Posts: 5,443 Indiana	I would be running it with my new MSD Street Fire ignition box that might not care about the .026" gap. Since it ran on a dist machine, I would like to try it but I am a little concerned about this gap. Does the MP dist come with the electrical connector replaced like this one? I don't recall my last MP unit having the two heat shrink tubes like this one. It just looks like the connector has been spliced in. Thanks for your reply. 1970 YO7 A66 [Canadian Export] F8 Challenger 340 (Currently in shop for stroker assy.)

Re: FBO VAcuum Adavance Distributor? [Re: YO7_A66] #1153841 01/10/12 10:46 AM 01/10/12 10:46 AM
Joined: Jun 2008 Posts: 3,916 usa L lewtot184 master
lewtot184 master L Joined: Jun 2008 Posts: 3,916 usa	for me, the photo isn't clear enough to see the connectors. if it were me, i'd just call FBO and ask them about what you have.

Re: FBO VAcuum Adavance Distributor? [Re: lewtot184] #1153842 01/10/12 11:04 AM 01/10/12 11:04 AM
Joined: Jan 2003 Posts: 5,443 Indiana Y YO7_A66 OP master
YO7_A66 OP master Y Joined: Jan 2003 Posts: 5,443 Indiana	I have emailed him three times over a 2 week span with no answer. Sorry about the quality of the pictures and thanks for your reply. There is no way that .026" gap would have worked with my FBO or my MP ECU, but I will find out what gap MSD spec's for the Street Fire box. Last edited by YO7_A66; 01/10/12 12:01 PM. 1970 YO7 A66 [Canadian Export] F8 Challenger 340 (Currently in shop for stroker assy.)

Re: FBO VAcuum Adavance Distributor? [Re: YO7_A66] #1153843 01/10/12 12:37 PM 01/10/12 12:37 PM
Joined: Jan 2007 Posts: 1,163 NORTHERN VA T THESHAKERPROJECT super stock
THESHAKERPROJECT super stock T Joined: Jan 2007 Posts: 1,163 NORTHERN VA	Quote: I have emailed him three times over a 2 week span with no answer. Sorry about the quality of the pictures and thanks for your reply. There is no way that .026" gap would have worked with my FBO or my MP ECU, but I will find out what gap MSD spec's for the Street Fire box. ..........................Are you shure about that ? I run the same dist from FBO with the FBO ecu and it runs fine , actuall way better than the stock MP one. The FBO dist LOOKS like a MP/mallery unit but side by side there are a few differences in the castings that few will notice. I just put it in the car and set the total timing that was on the FBO spec sheet and it runs perfect. The vac advance never pulls the dist out of phase like my stock MP one. If you think the gap is off just re-gap it.

Re: FBO VAcuum Adavance Distributor? [Re: THESHAKERPROJECT] #1153844 01/10/12 01:07 PM 01/10/12 01:07 PM
Joined: Aug 2007 Posts: 1,271 Vista, California 6 67Satty pro stock
67Satty pro stock 6 Joined: Aug 2007 Posts: 1,271 Vista, California	Mine came with a gap that was a mile wide. My car would sputter at higher RPMs, so I checked it, reset it to .008" and it was fine after. I've never had any problems getting him on the phone to answer all my questions, he's always been super helpful and taken a lot of time to answer all my questions whether I was making a purchase that day or not. Some people just don't deal with email, try the phone if he doesn't answer emails.

Re: FBO VAcuum Adavance Distributor? [Re: THESHAKERPROJECT] #1153845 01/10/12 01:15 PM 01/10/12 01:15 PM
Joined: Jan 2003 Posts: 5,443 Indiana Y YO7_A66 OP master
YO7_A66 OP master Y Joined: Jan 2003 Posts: 5,443 Indiana	""Are you shure about that?"" I was running the first gen FBO box (ballast) and it would start with no problem with .008" gap. Then I bought the second gen box (12v, no ballast) and D had me move the gap down to .004" and that box still would not light the motor. He took that box back for rebuild. That dist is still set at .004" and the Street Fire starts excellent. I might reset the gap to .008 then unless MSD says something else. Thanks to both of you. 1970 YO7 A66 [Canadian Export] F8 Challenger 340 (Currently in shop for stroker assy.)

Re: FBO VAcuum Adavance Distributor? [Re: YO7_A66] #1153846 01/10/12 01:42 PM 01/10/12 01:42 PM
Joined: Jan 2003 Posts: 5,443 Indiana Y YO7_A66 OP master
YO7_A66 OP master Y Joined: Jan 2003 Posts: 5,443 Indiana	""I just put it in the car and set the total timing that was on the FBO spec sheet and it runs perfect."" I didn't get any instructions with the unit but what I do know is: 18 deg initial 12 deg at 12" vacuum timing 16 deg at 2800rpms Total should be 18+16=34 I am assuming that with the vacuum advance disconnected, I set the initial to 18 degrees at my idle rpm. Then once I hook up the vacuum advance to manifold vacuum, this should add about 12 more degrees and my idle rpms will go up as soon as I plug in the manifold vacuum. Then I was planning on just lowering the idle rpms back down and rechecking the timing at idle. Is this correct? I believe that the most important part is that I have at least 10" of vacuum in D with the brake applied. Is this correct? Thanks 1970 YO7 A66 [Canadian Export] F8 Challenger 340 (Currently in shop for stroker assy.)

Re: FBO VAcuum Adavance Distributor? [Re: YO7_A66] #1153847 01/10/12 05:27 PM 01/10/12 05:27 PM
Joined: Jun 2008 Posts: 3,916 usa L lewtot184 master
lewtot184 master L Joined: Jun 2008 Posts: 3,916 usa	having the .008" air gap is more for keeping the reluctor and pick-up from colliding at full vacuum advance. there's probably a point of diminishing return on widening the gap. i'd think that a wider gap would adversly effect the magnetic signal at some point, but i don't know where that "point" is. i use .008" as a minimum but have never had a problem with a little more gap; but have never went as wide as .026"

Re: FBO VAcuum Adavance Distributor? [Re: lewtot184] #1153848 01/10/12 09:54 PM 01/10/12 09:54 PM
Joined: Jan 2003 Posts: 5,443 Indiana Y YO7_A66 OP master
YO7_A66 OP master Y Joined: Jan 2003 Posts: 5,443 Indiana	MSD replied that the .026" gap should not be a problem, but I am going to keep it down around .008" to where I have always run it. Thanks again for the replies. 1970 YO7 A66 [Canadian Export] F8 Challenger 340 (Currently in shop for stroker assy.)

Re: FBO VAcuum Adavance Distributor? [Re: YO7_A66] #1153849 01/10/12 11:23 PM 01/10/12 11:23 PM
Joined: Jul 2006 Posts: 4,179 California mickm master
mickm master Joined: Jul 2006 Posts: 4,179 California	can someone post the contact info for FBO? i looked in the sponsors section, not there. thanks!

Re: FBO VAcuum Adavance Distributor? [Re: mickm] #1153850 01/10/12 11:37 PM 01/10/12 11:37 PM
Joined: Mar 2005 Posts: 3,140 Central NC gch master
gch master Joined: Mar 2005 Posts: 3,140 Central NC	http://www.4secondsflat.com/

Re: FBO VAcuum Adavance Distributor? [Re: YO7_A66] #1153851 01/11/12 10:12 AM 01/11/12 10:12 AM
Joined: Jan 2003 Posts: 11,076 Berlin, N.J. A abodyjoe I Live Here
abodyjoe I Live Here A Joined: Jan 2003 Posts: 11,076 Berlin, N.J.	Quote: ""I just put it in the car and set the total timing that was on the FBO spec sheet and it runs perfect."" I didn't get any instructions with the unit but what I do know is: 18 deg initial 12 deg at 12" vacuum timing 16 deg at 2800rpms Total should be 18+16=34 I am assuming that with the vacuum advance disconnected, I set the initial to 18 degrees at my idle rpm. Then once I hook up the vacuum advance to manifold vacuum, this should add about 12 more degrees and my idle rpms will go up as soon as I plug in the manifold vacuum. Then I was planning on just lowering the idle rpms back down and rechecking the timing at idle. Is this correct? sounds right.. initial timing 18* then you plug the advance in and you'll end up with 30* at idle and cruising.. so yes lower you idle. then when you have full throttle and the vac drops out you'll be full mechanical. 18* initial + 16* mechanical will give ya the 34* total for full out runs. did you get this set up for your combo? or did you buy it used? mine is set up a little different. mine is 14 initial, 18 vac, and 20 mechanical.. but i have a basically stock 74 360 in my car.. it runs nice in my car.. It's better to keep your mouth shut and give the impression that you're stupid than to open it and remove all doubt. www.MoparMisfits.com

Re: FBO VAcuum Adavance Distributor? [Re: abodyjoe] #1153852 01/11/12 10:21 AM 01/11/12 10:21 AM
Joined: Jan 2003 Posts: 5,443 Indiana Y YO7_A66 OP master
YO7_A66 OP master Y Joined: Jan 2003 Posts: 5,443 Indiana	"" did you get this set up for your combo? or did you buy it used?"" I called FBO to buy a new distributor and I requested at least 24 degrees initial to keep my vacuum up. FBO explained that they "usually" try 18 initial and then bring in an addition 12 with the manifold vacuum on their SB setups. I like this setup better than my current 24 initial for hot startup reasons. The new distributor will crank with 18 degrees instead of my existing 24, then as soon as the engine starts it will kick in the extra 12 for idle. I can't wait to run it this spring with 30 degrees of timing at idle. Thanks for the reply. 1970 YO7 A66 [Canadian Export] F8 Challenger 340 (Currently in shop for stroker assy.)

Re: FBO VAcuum Adavance Distributor? [Re: YO7_A66] #1153853 02/27/12 08:43 AM 02/27/12 08:43 AM
Joined: Jan 2003 Posts: 5,443 Indiana Y YO7_A66 OP master
YO7_A66 OP master Y Joined: Jan 2003 Posts: 5,443 Indiana	I finally got around to installing this distributor and with it hooked up to manifold vacuum, the idle was rock steady and so was the vacuum reading. I installed it at 18 degrees per the instructions, and I got 14"hg vacuum reading at my normal N idle. Then I plugged in the vacuum line to the manifold source (per FBO's instructions) and then the vacuum jumped up to 16"hg but 200rpms higher than before. Once I readjusted the N idle rpms back down, I ended up gaining one hg of vacuum at the same idle rpms that I had previous to this swap (24 degrees of initial with my previous distributor w/o VA). So now I have 15" hg at my normal N idle rpms (previous 14") and I now show 32 degrees of timing, and I had to back down on the throttle plates around 1/4 turn. I like this manifold vacuum setup because it cranks with 18 degrees of timing, then once the engine is idling the manifold pulls the timing up to 32 degrees at my normal N idle rpms. It did show leaner on my O2 gauge but that will be an easy fix. The FBO distributor is setup with the proper can for manifold vacuum and it appears to work well. 1970 YO7 A66 [Canadian Export] F8 Challenger 340 (Currently in shop for stroker assy.)

Re: FBO VAcuum Adavance Distributor? [Re: YO7_A66] #1153854 03/04/12 12:47 AM 03/04/12 12:47 AM
Joined: Jan 2003 Posts: 1,069 Washington State 70Duster440 super stock
70Duster440 super stock Joined: Jan 2003 Posts: 1,069 Washington State	Is it supposed to be actuating the canister at idle? I had him recurve a new MP distributor years ago. Came back with the recommended 18* initial and it does not pull in extra timing at idle. I have 18* initial whether the vacuum canister is connected to manifold vacuum or not. Seems like you'd have the potential for erratic idle if it were.

Re: FBO VAcuum Adavance Distributor? [Re: 70Duster440] #1153855 03/04/12 09:02 AM 03/04/12 09:02 AM
Joined: Jan 2003 Posts: 11,076 Berlin, N.J. A abodyjoe I Live Here
abodyjoe I Live Here A Joined: Jan 2003 Posts: 11,076 Berlin, N.J.	Quote: Is it supposed to be actuating the canister at idle? I had him recurve a new MP distributor years ago. Came back with the recommended 18* initial and it does not pull in extra timing at idle. I have 18* initial whether the vacuum canister is connected to manifold vacuum or not. Seems like you'd have the potential for erratic idle if it were. not sure how he set yours up but he set mine up to actuate the vac canister at idle. i have over 30* of timing at idle. it idles rock steady at 750 rpm.. It's better to keep your mouth shut and give the impression that you're stupid than to open it and remove all doubt. www.MoparMisfits.com

Re: FBO VAcuum Adavance Distributor? [Re: YO7_A66] #1153856 03/04/12 11:24 AM 03/04/12 11:24 AM
Joined: Mar 2007 Posts: 9,336 South-Central (Sebring), FL Commando1 master
Commando1 master Joined: Mar 2007 Posts: 9,336 South-Central (Sebring), FL	Quote: Is anyone running the FBO vacuum advance distributor? The quality looks to be good FBO's work is excellent. I talked to Don. He asked me a gazillion questions. Custom curved the disributer based on the gazillion questions. Dropped it in my engine. PERFECT. Right out of the box.

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