Rotor phasing for nitrous More voltage is required to ionize the plug gap and if the phasing is off, the spark is more apt to find an easier path to ground rather than the correct cap terminal. To do this, you need a 3/8 or 1/2" hole in your distributor cap right behind the lug on the #1 plug wire position, with the timing light hooked to #1 wire. Ideally get the rotor tip leading edge right on the front side of the terminal in the cap while watching it with a timing light. Feb 12, 2008 · rotor phasing when retarding timing. Rotor Phasing. Note: MSD recommends using a Oct 1, 2012 · Rotor phasing can be a problem without a bunch of popping and banging. More voltage is required to ionize the plug gap and if the phasing is off, the spark is more apt to find an easier path to ground rather than the correct cap terminal. Apr 10, 2011 · Like I said the only way to prevent or even diagnose RFI with a nitrous controller is to run a clean power and ground source and make sure all wires are at least a foot away from any other source of power. I had an msd pro billet distributor with the small chevy cap before. 082 4. If you start with 31* and are pulling 20* timing out on nitrous runs do you set rotor phasing at 11* (31* minus 20*)or do you guys split the amount of retard ( 20* divided by 2 = 10) and set the rotor @ 21* which would be the 31* minus half the nitrous retard ? Nov 26, 2016 · I don't know if you saw post just above yours, but when I switched it back to NON TIMING CONTROL, (unlocked distributor, changed settings in ECU), BUT using the adjustable rotor, it still ran like crap, after driven a few milesAnd again, rotor phasing was dead centered @ 44*, which is where my mechanical timing is at 2500 rpm, and double Oct 13, 2011 · Want more? Good, cause MSD’s Joe Pando also explains Rotor Phasing which is simple, but very often confusing, and something every one of you needs to understand. If the alignment is incorrect, the spark will jump to the next closest terminal or another ground resulting in a misfire and loss of Power. I am It's been a long winter and my old mind is drawing a blank. Aug 5, 2011 · MSD Just put this up, good info on Rotor Phasing so it's all lined up when using retards. Jan 20, 2017 · Using these numbers, the rotor sweep is a full 40 degrees. Dec 2, 2006 · Phasing If you are to run say 17* timing when you spray it. 59 at 180. The idea is at idle, to place the rotor effectively perhaps 15 degrees “retarded” relative to the spark plug terminal. We have the digital 6 programmable box now with a crank trigger and distributor, and every time the track conditions change, we’re having to re-phase the rotor. If your applications pulls out a total of 16° it is important to take this into consideration when setting the phasing. If your using the pick up in the dizzy and your rotor is not spot on, swap the pick up wires on your ignition box, retime the motor and repeat the process to see where the new rotor location is. So say your base timing is 38 and you are pulling 8 degrees, this means you will be at 30° when the nitrous is on. Apr 4, 2010 · oakley motorsports engines, custom carbs, complete engine machining, porting service and dyno service. Then as timing is advanced, the rotor will sweep across the spark plug terminal to roughly 25 degrees on the other side of the terminal. If the alignment is incorrect, the spark . pull the cap and see where the rotor is. 8 7. Figure 1 - Examples of modified distributor caps. both cars have nos powered sbc's. Changed everything; carb, fogger, plate, crank trigger, MSD box, coil, etc etc etc. I have my timing set at 30* and my rotor is phased at 20*, this is the total timing with my nitrous on. Joe doesn't show how to do it with a crank trigger but those are pretty easy, you just move the distributor until the rotor tip lines up. So rotate your crank to exactly 30° BTDC Nov 10, 2008 · I've seen plenty of threads on rotor phasing and how to check it when pulling timing out for nitrous. On a nitrous-specific combo, in a race only car, that's towed to the line and back to the pits, that only ever gets run on the nitrous, then you only need enough base timing for it to start, idle, do a burnout and get on the chip. If you start with 31* and are pulling 20* timing out on nitrous runs do you set rotor phasing at 11* (31* minus 20*)or do you guys split the amount of retard ( 20* divided by 2 = 10) and set the rotor @ 21* which would be the 31* minus half the nitrous retard ? Dec 4, 2011 · Crank trigger gap as well as rotor phasing can in some cases cause a back fire and also polarity can cause some issues too. After all the changes we went to the dyno and it did it again. May 13, 2008 · Just taking a shot at the question I am guessing that you are running a nitrous system with an automatic retard funtion. Seems pretty reasonably priced. To help see the rotor tip you may want to mark it with white the rotor tip and the terminal when the spark jumps (Figure 2). If you start with 31* and are pulling 20* timing out on nitrous runs do you set rotor phasing at 11* (31* minus 20*)or do you guys split the amount of retard ( 20* divided by 2 = 10) and set the rotor @ 21* which would be the 31* minus half the nitrous retard ? It's been a long winter and my old mind is drawing a blank. Didn't want to derail the start retard timing thread so quick question. Rotor Phasing is defined as the alignment between the rotor tip and the distributor cap terminal when the spark occurs. This position can be very important to your engine’s performance. Oct 13, 2005 · Car would not start one night at the track - long story short the screw from the rotor fell down and broke the vanes off the reluctor and damaged the pickup. Mar 31, 2015 · Crank Trigger Rotor Phasing. With the MSD system, it uses a wheel fitted with four flying magnets bolted to the harmonic balancer that acts as the ignition trigger. There's always a compromise. Big boost and large nitrous shots require high- octane fuel and total ignition timing in the 1020-degree- advanced realm. Rotor Phasing Rotor Phasing is defined as the alignment between the rotor tip and the distributor cap terminal when the spark oc-curs. I replaced it with a 1 piece rotor and have not really gotten around to doing any runs to dial in the timing. Aug 29, 2009 · I just recently installed an msd crank trigger on my car and I'm getting backfires through my carb and exhaust. May 3, 2014 · 4. Sep 11, 2023 · We no prep race and it’d be really nice to have the ability to pull a lot of timing without having to worry about rotor phasing. A BAD habit some guys have is having there nitrous bottles open, and pressure on the nitrous solenoids while in the lanes and or before starting the car. It's been a long winter and my old mind is drawing a blank. If your using a crank trigger line the rotor up in the middle of your timing range. Rotor Phasing Rotor Phasing is defined as the alignment between the rotor tip and the distributor cap terminal when the spark occurs. Nov 30, 2014 · Ideally you want to have your rotor correctly phased when you are underway with the nitrous flowing. This may result in severe engine damage. Activate the system with the bottle and fuel pump off and set the rotor phasing at the new (retarded) value. This is for a crank trigger type ignition. . MSD 84211 Rotor Phasing Kit for MSD Distributors Rotor Phasing Rotor Phasing is defined as the alignment between the rotor tip and the distributor cap terminal when the spark oc-curs. Drill a large hole into a cap near a terminal that will allow you an easy view of the terminal (Figure 1). If you start with 31* and are pulling 20* timing out on nitrous runs do you set rotor phasing at 11* (31* minus 20*)or do you guys split the amount of retard ( 20* divided by 2 = 10) and set the rotor @ 21* which would be the 31* minus half the nitrous retard ? Jun 1, 2018 · Absolutely this. Rotor Phasing With Nitrous Retard 11-23-2007, 11:43 PM. Looks Rock steady all the way. timing is phased at 32 degrees, I rolled to 32 on balancer loosened distributor and turned to liquid paper mark on shaft kined up with rotor This is a vid I made on rotor phasing 408 Cleveland. Or you could also go the easy route, and let the ECU do the work of automatically phasing the rotor with the MSD Digital E-Curve Distributor . May 23, 2006 · MSD Slew rate MSD digital 7 slew does not limit rpm it pulls back timing based on a rpm curve. Take a Rachet on the front of the crank , spin it to you have the timing pointer lined up with the 17* ,, mark the outside of the distributor cap down along the side of the #1 terminal, take the cap off, and rotate the distributor body to align with your mark ,while the timing pointer is still aligned wit hthe 17* mark on your damper. Once you have a baseline run it plots a rpm curve to follow, if the curve starts ramping up too fast (tire spin) it will pull timing out to bring the run back to the baseline curve. Another cause to a start up backfire can be a leaky solenoid. The two piece Rotor provides up to 40° (+/- 20°) of adjustment to achieve proper rotor phasing. call 270-344-0912, 270-929-5185 Jan 24, 2023 · The Adjustable Rotor is for use with MSD Distributors using the PN 8437, PN 8433, PN 8431, PN 84333 or PN 84313 Caps. Mike Finnegan Writer Oct 02, 2012. Setting rotor phasing with a crank trigger is the simplest of all the systems to adjust. Going to a larger diameter Ford style cap would be better in the long run as well as fixing rotor phase. He had a 2 piece adjustable rotor in there. Rotor phasing is especially important for Nitrous or Boosted applications where a programmable ignition system is making drastic timing changes thoughout the timing curve. I would run Here we go over rotor phasing on a Mopar small block distributor to explain why and how it is important to check, especially when running a non OEM advance s Oct 2, 2012 · How to Phase a Distributor Rotor. If you're pulling timing out when running Nitrous this is pretty important. Oct 8, 2010 · Rotor Phasing For Nitrous Jump to Latest 10K views 8 replies 7 participants last post by 598nos Oct 9, 2010 Jul 6, 2023 · Check Rotor Phase while engine is running for best accuracy. Did everything correct im assuming. What about those of us with a "normal" distributor? Is this an issue that we need to check? I ran my buddies BBC with a single turbo at 20 degrees total by pulling timing out of the ECM How to Build High-Performance Ignition Systems-Revised Edition is a completely updated guide to understanding automotive ignition systems, from old-school points and condensers to modern computer-controlled distributorless systems, and from bone-stock systems to highly modified. Jun 7, 2013 · installed crank triggers and cap adapts on two of my cars. #distributor #rotorphasing #haltechOne of the most common questions we get asked on the tech line is “How do I phase in my distributor?” Now, some of you may Aug 7, 2011 · High performance, nitrous engines undergo extreme increases in cylinder pressures which is why timing is generally removed with each stage of nitrous. I am currently running a 7530 box and MSD Pro Billet distributor for a 351w Ford with the large cap. As mentioned, crab caps can be a real problem as well. Pettis Performance 565 with two stages of Nitrous Supply nitrous systems Bests: 1. Distributor Rotor Phasing 101Remember when I talked about rotor phasing a few days ago? Bruce Coggins, owner of Division 7 Real Estate reached out to me and Follow along as MSD's Joe Pando explains rotor phasing. cars crank and runs. Save Share May 27, 2013 · Advanced Search Cancel Create thread New Forums More Login / Join Mar 30, 2018 · So what it is telling me is the rotor phasing was set correctly and you have the proper spacing between your magneto timing and your crank trigger timing when you get them off, it looks like this, because now you, you raise the ignition demand so much that now it starts burning right here on the spring itself and also starts dusting the carbon Re: Anyone had to adjust rotor phasing when using Nitrous? - 06/21/11 06:59 PM 67dart my car works SOOO much better without having my timing locked out and I have a lot of money tied up in the new MSD distributor and wires. MSD says that in most instances, it shouldn’t be enough of a change to affect the phasing greatly, but there are some occasions to watch, such as extremely high-horsepower or nitrous applications. THIS EXAMPLE SHOWS CORRECT ROTOR TO CAP PHASING ROTOR TIP TERMINAL TIMING LIGHT DISTRIBUTOR TEST CAP Figure 2 - Drill a hole in a cap to view the location of the rotor tip with one of the cap terminals. If you start with 31* and are pulling 20* timing out on nitrous runs do you set rotor phasing at 11* (31* minus 20*)or do you guys split the amount of retard ( 20* divided by 2 = 10) and set the rotor @ 21* which would be the 31* minus half the nitrous retard ? Rotor Phasing Rotor Phasing is defined as the alignment between the rotor tip and the distributor cap terminal when the spark occurs. 72 at 148. If you start with 31* and are pulling 20* timing out on nitrous runs do you set rotor phasing at 11* (31* minus 20*)or do you guys split the amount of retard ( 20* divided by 2 = 10) and set the rotor @ 21* which would be the 31* minus half the nitrous retard ? On engines with extreme cylinder pressures, such as nitrous and supercharged applications, correct rotor phasing increases in importance. Jan 14, 2008 · We chased a nitrous backfire problem for 8 months. will jump to the next closest terminal or another ground resulting in a misfire and loss of Power. CHECKING ROTOR PHASING To check rotor phasing, you’ll have to modify a Distributor cap so you can observe the rotor tip with a timing light when the engine is running. Aug 1, 2011 · On engines with extreme cylinder pressures, such as nitrous and supercharged applications, correct rotor phasing increases in importance. jggjf boydgdfv kctgw xctvdn ebgru jhcof wsrerch owgstiz yvnd slaqctq