coil packs and MSD DIS 2 ASAP
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I do believe you'll need a Tach adapter, but I'm not 100% sure. Gut instinct says you will not, because the tach signal comes from the onboard ECU. However, I may be stupid wink.gif and/or may be misunderstanding all the places that the MSD taps into, and as such it may still need it.
I believe Onpol said his MSD unit needed the tach adapter. You may just want to ask the MSD guys how the Talons/Eclipses work, as they use the same type of ignition system that we do. There's a good chance that if the Talon/Eclipse doesn't need it, we will not need it either.
As for ignition timing changes and OBD2 -- I do not think the OBD2 system will gripe. It doesn't have a way to monitor your timing, it can only send ignition pulses when it wants to. The MSD unit changes the timing "after the fact" by intercepting the ignition signal from the ECU. As such, the timing can be retarded without pissing off the computer.
Apexi ITC (ignition timing controllers) alter timing by a different method -- they intercept the cam-angle sensor and alter the signal *before* the ECU gets it. The ECU still thinks everything is coming in 100% correct, and as such usually doesn't get pissed off at the "invisible" timing change either. The only difference: The ITC device can advance timing because it's making changes to the signal before the ECU gets it. The MSD unit can only retard, because it's making changes after the ECU sends.
The programmable DIS-2 unit has a cam-angle intercept module similar to the ITC device, and along with an RPM pickup is able to advance as well as retard the timing *around* the ECU's ability to sense it. Hence the higher cost.
I'd still strongly suggest the regular DIS-2. The only people who would really need the Programmable DIS2 would be individuals wanting to take their cars "to the extreme" while using bandaid fixes on the stock ecu. If you want to go extreme, do it the right way and buy a new ECU wink.gif You'll save money in the end, and still end up with more power.
-Red-
I believe Onpol said his MSD unit needed the tach adapter. You may just want to ask the MSD guys how the Talons/Eclipses work, as they use the same type of ignition system that we do. There's a good chance that if the Talon/Eclipse doesn't need it, we will not need it either.
As for ignition timing changes and OBD2 -- I do not think the OBD2 system will gripe. It doesn't have a way to monitor your timing, it can only send ignition pulses when it wants to. The MSD unit changes the timing "after the fact" by intercepting the ignition signal from the ECU. As such, the timing can be retarded without pissing off the computer.
Apexi ITC (ignition timing controllers) alter timing by a different method -- they intercept the cam-angle sensor and alter the signal *before* the ECU gets it. The ECU still thinks everything is coming in 100% correct, and as such usually doesn't get pissed off at the "invisible" timing change either. The only difference: The ITC device can advance timing because it's making changes to the signal before the ECU gets it. The MSD unit can only retard, because it's making changes after the ECU sends.
The programmable DIS-2 unit has a cam-angle intercept module similar to the ITC device, and along with an RPM pickup is able to advance as well as retard the timing *around* the ECU's ability to sense it. Hence the higher cost.
I'd still strongly suggest the regular DIS-2. The only people who would really need the Programmable DIS2 would be individuals wanting to take their cars "to the extreme" while using bandaid fixes on the stock ecu. If you want to go extreme, do it the right way and buy a new ECU wink.gif You'll save money in the end, and still end up with more power.
-Red-
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Thats what I thought RED.
Some guy here in a rice shop told me he had a prblem with the OBD-2 in the VW Jetta. Something to the effect the the OBD was seeing the retard as a problem and tried to fix it resulting in way out of wack timing requiring a computer reset of some sort. I think the guy is nuts. You, JRP, and MSD has said the same thing. I think I'll be able to retard when I finally need to.
I do plan on upgrading the fuel system later on with a cam change out and the HDK ECU.
Some guy here in a rice shop told me he had a prblem with the OBD-2 in the VW Jetta. Something to the effect the the OBD was seeing the retard as a problem and tried to fix it resulting in way out of wack timing requiring a computer reset of some sort. I think the guy is nuts. You, JRP, and MSD has said the same thing. I think I'll be able to retard when I finally need to.
I do plan on upgrading the fuel system later on with a cam change out and the HDK ECU.
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Joined: May 2001
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It turns out that you do NOT need the tach adapter to function correctly in the BETA motors. We have a few other knowledgeable DIS-2 owners on the FXtreme forums who are using the DIS2 and DIS2/HO without any issues, and without the tach adapter.
The owner of the DIS2/HO also owns the BTM (boost timing module) and is making 227HP at the tires on 10psi with the stock internals. Yes, this person of whom we speak is Onpol wink.gif
-Red-
The owner of the DIS2/HO also owns the BTM (boost timing module) and is making 227HP at the tires on 10psi with the stock internals. Yes, this person of whom we speak is Onpol wink.gif
-Red-
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Haha what you know I looked at this yesterday and what you know someone replied. Well the MSD DIS-2 is working fine. Didnt give me all that much in the 1/4 mi but throttle responce was cripser asnd idle was improved. I did not need the Tach adapter although I did order one. So I got it laying around collecting dust. The install was easy except for the vague wiring diagram for the Engine cut off switch which actually does not get grounded like the install seems to show. It gets wired to a switch you can get for a kill switch. Other than that works great. I love the staging limiter on the drag track as well. Now my launches are more consistant and I can change launch revs according to track conditions. I have also tested the ignition retard feature. I dont really need it but I assume its working because I did not mess up my timing at all.
