This is due to the various electronics in them and that knob that is supposedly scaled correctly to that decal. To my point, those dial adjust timing lights don't always read accurate. It isn't flooding so the floats are not too high. Not until I have the idle and timing set up. Haven't tried looking at idle vacuum settings yet. ![]() Initially I just gave it the basic 1 1/2 turns to each idle mix screw. Its a little fat too.still have the carb to do next. What are you guys with these cams idling at? I have the edelbrock RPM package including their cam.its a little lopy. At present I am about 900-1000 rpm warm and with 14 initial. Where/how does one end up determining what is ideal initial timing and also what their idle rpm should be set at. Never less than 10 or more than 20 static ( initial) advanceįord that like 34-38 total with iron heads may like lots less with alumimun heads. Should I forget about all this now and just see what rpm I have for 35 or so? I had hoped its all in by 3000 rpm based on my spring choice. But hell what do I know I am new on this stuffĪlso I should be seeing a total of 21 advance from the stop, plus 14 from static.giving a total of 35. So heres the catch I have reved it again with a bit more speed and it lines up at about 24 to 26 degrees with only 1500-1600 rpm.Is this the regular curve rate for these springs or does it seem a tad fast.ĭo I need to go for some stiffer springs or what? Seems to be coming in early. There are 2 adjust buttons to bring the degrees up or down.Īt 900-1000 idle, I have 14 on my indicator.Īt 15-1600 I can line up my zero with about 24 to 26 on the digital In my case at an idle, I have my display reading 14 and the 0 mark on the damper is bang on my timing pointer. So as far as I know, you hit the adj button/s to bring the mark to zeroon the damper. Today I am at the "let's finally see where the heck this thing is" stage since my FE break-in 2 nights ago. I have set up my MSD using the default blue advance stop bushing ( gives 21 degrees advance) Chose a light blue and a light silver spring as i wanted it all in by 3000 rpm I really need to know how to time my car by using it in a nutshellĬar is static timed now for 14 degrees. I know our engines are solid as far as internal cam timing, the chain and distributor gear, and I know what the distributor is going to do based on the setup I build it with, so I pretty much know what to expect anyway.I have had the luck of having a friend drop off his snap-on digital advance timing light. Below that usually the timing flutter isn't too horrible, you can still hone in on the timing once you learn to read between the flutter, you'll get to know what's accurate and what isn't as far as base and curve. What I do is run the engine above 3000 where the multispark is inop and set my total. I have an old Craftsman chrome mechanical dial back timing light, (father has one too) identical to your Sunpro dial back, and neither one of ours likes the MSD boxes at all. ![]() If you're not running a box, you'll be fine. I've heard of people having good luck with the Innova timing light that you're looking at. Even when I add the box to a points ignition system it goes from being perfectly fine as a standard points setup but as soon as I switch the coil wires around and fire up the box it goes to a very bouncy timing mark that is difficult to time. I get the issue with any car here that I run the box on. It's not the MSD ready to run distributors or any of that stuff. It's actually caused by the MSD CDC boxes. If you've ever experienced it, it's the timing mark bouncing around. So is the problem inaccurate timing ,timing mark bounce,or something else? My old chrome sunpro with mechanical dial seems very steady. ![]() 035 end play when I took it out the other day. I measured my DUI ,which only had about 1000-1500 miles on it and it has. I measured it when I got it back and has exactly. I sent it back and they said they replaced the shaft. I did have to send the MSD dist back though cause out of the box there was zero shaft end play and it wouldnt spin freely with my fingers. This new MSD dist has a very stable timing mark at any RPM. Id rev up the motor with the DUI and the mark would move around some especially the higher the rev. Using my old gun on both dist I will say the MSD has the most stable timing mark in awhile. ![]() I took out a DUI "tripower" small bodied HEI dist that I was having problems with(another thread) and replaced it with a MSD ready to run billet dist. I guess Ill just try it when I get it and see how it works. So thats why I asked here to see what your experiences were. Well while I was reading some q&a last night about whether this light would work with mSD ,I did see where there were a few that said it didnt work for them where the majority said it did.
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