Finding the best (BIG BOOST) IGNITION for E85
07-29-09, 12:25 PM
#51
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That's why I asked about street driving. What Steve was quoted above is true. The regular 14R is rated at 115mJ. The drag version is rated at 250mJ. Drive the drag version too long and it overheats.
30+ psi won't be a problem with the regular 14R. But of course it comes down to plugs, coils, wires, etc. as well.
30+ psi won't be a problem with the regular 14R. But of course it comes down to plugs, coils, wires, etc. as well.
07-29-09, 04:09 PM
#52
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Looking at wiring this M&W up.
Going off the manual here, http://www.mwignitions.com/pdf/Rotary_S3.pdf
They're showing 4 ways to wire this up, which should I choose? FYI, I have the M&W Double CDI only coils.
1) Direct Fire
2) Three Trigger
3) Two Trigger
4) There is a forth but it's also called Two Trigger also, not sure what's different.
Going off the manual here, http://www.mwignitions.com/pdf/Rotary_S3.pdf
They're showing 4 ways to wire this up, which should I choose? FYI, I have the M&W Double CDI only coils.
1) Direct Fire
2) Three Trigger
3) Two Trigger
4) There is a forth but it's also called Two Trigger also, not sure what's different.
07-29-09, 04:40 PM
#54
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hey Eric. can you do a write up when your installing your M&W setup? Your running haltech too right?
Are you sure that the 14R will be "enough" for your 40 psi runs?
**** can't believe you bought them already.lol
Are you sure that the 14R will be "enough" for your 40 psi runs?
**** can't believe you bought them already.lol
07-29-09, 04:46 PM
#55
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I need to get this thing on the road.
Yeah, I'll make a thread when I get it in a few days. Yes, I'm running a ancient E6K.
07-29-09, 06:18 PM
#56
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hmmmmmm. i thou it was me !!!!! im tuni8ng my friends rx7 with a microtech with a t70 running e85 i was boosting 24psi running great and now is like ignition cutting off nasty so i changed pumps injectors and same problem i lower the boost tp 18 and runs super good ?wtf?
07-30-09, 10:36 AM
#59
You will want to use one of the "three trigger" diagrams on page 9 and 11 of the M&W .pdf. Ign 1 will drive the leading in wastespark while Ign 2 is T1 and Ign 3 is T2. The difference in the two diagrams is one is for a single dual post coil for leading and the other is for two single post coils for leading. Ignition mode will need to be changed to direct fire in the ignition setup.
The answer to your E11 questions is that yes they will handle more injectors as the available aux outputs can be configured to drive more injectors. Like the regular injector channels they can handle up to two low impedance injectors per channel. The aux output channels will fire in multipoint (all injectors firing together) which should be no problem since you'll only be using them for high load situations anyway. The aux channels will come on and run at the same pulse width as the regular secondary injection channels.
The E11 is NLA. Unless you find one used or a dealer happens to have one stored away somewhere you're not going to find them new. The PS2k is a very nice step up over the E11 anyway. Much better software, better datalogging, direct USB connection, some other really nice features too.
The answer to your E11 questions is that yes they will handle more injectors as the available aux outputs can be configured to drive more injectors. Like the regular injector channels they can handle up to two low impedance injectors per channel. The aux output channels will fire in multipoint (all injectors firing together) which should be no problem since you'll only be using them for high load situations anyway. The aux channels will come on and run at the same pulse width as the regular secondary injection channels.
The E11 is NLA. Unless you find one used or a dealer happens to have one stored away somewhere you're not going to find them new. The PS2k is a very nice step up over the E11 anyway. Much better software, better datalogging, direct USB connection, some other really nice features too.
07-30-09, 10:48 AM
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Ludwing, how does the mercury coils compare to the M&w Coils?
Reason I ask is that the mercury coils are pretty much half the cost of the M&W coils.
Also, on point with what Eric was asking, ,what is the voltage output difference between the m&w cdi vs. ....say msd??
Thanks..
Reason I ask is that the mercury coils are pretty much half the cost of the M&W coils.
Also, on point with what Eric was asking, ,what is the voltage output difference between the m&w cdi vs. ....say msd??
Thanks..
07-30-09, 12:30 PM
#61
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You will want to use one of the "three trigger" diagrams on page 9 and 11 of the M&W .pdf. Ign 1 will drive the leading in wastespark while Ign 2 is T1 and Ign 3 is T2. The difference in the two diagrams is one is for a single dual post coil for leading and the other is for two single post coils for leading. Ignition mode will need to be changed to direct fire in the ignition setup.
The answer to your E11 questions is that yes they will handle more injectors as the available aux outputs can be configured to drive more injectors. Like the regular injector channels they can handle up to two low impedance injectors per channel. The aux output channels will fire in multipoint (all injectors firing together) which should be no problem since you'll only be using them for high load situations anyway. The aux channels will come on and run at the same pulse width as the regular secondary injection channels.
The E11 is NLA. Unless you find one used or a dealer happens to have one stored away somewhere you're not going to find them new. The PS2k is a very nice step up over the E11 anyway. Much better software, better datalogging, direct USB connection, some other really nice features too.
The answer to your E11 questions is that yes they will handle more injectors as the available aux outputs can be configured to drive more injectors. Like the regular injector channels they can handle up to two low impedance injectors per channel. The aux output channels will fire in multipoint (all injectors firing together) which should be no problem since you'll only be using them for high load situations anyway. The aux channels will come on and run at the same pulse width as the regular secondary injection channels.
The E11 is NLA. Unless you find one used or a dealer happens to have one stored away somewhere you're not going to find them new. The PS2k is a very nice step up over the E11 anyway. Much better software, better datalogging, direct USB connection, some other really nice features too.
Back to M&W,
Based on the coils I have, it looks like I need to use the following diagram.
07-31-09, 07:48 AM
#62
Ludwing, how does the mercury coils compare to the M&w Coils?
Reason I ask is that the mercury coils are pretty much half the cost of the M&W coils.
Also, on point with what Eric was asking, ,what is the voltage output difference between the m&w cdi vs. ....say msd??
Thanks..
Reason I ask is that the mercury coils are pretty much half the cost of the M&W coils.
Also, on point with what Eric was asking, ,what is the voltage output difference between the m&w cdi vs. ....say msd??
Thanks..
The M&W coil is a Mercury coil. As I posted before, I would be wary of anything that comes off Ebay and is priced at a too good to be true price. If you can be sure it's a genuine OE Mercury coil then why not pay less? But, though I haven't spent time scouring EBay, the one's I have seen say "New Ignition Coil for Mercury Outboards".
The mJ output of the MSD and M&W is similar. The M&W street boxes are rated at 115 while the MSD 6 series and DIS-2/4 is rated at 105-115.
The M&W Drag is rated at 250 mJ while the DIS HO and and 7 series is rated at 160-170. The M&W Drag will run for a 1/2 or so before it over heats and you really shouldn't run it to that point. I have heard the same thing happening with the hot MSD stuff but that might be hearsay.
I have no idea what the 500R is rated at and I've search the net briefly. Am curious to see some numbers on it.
M&W doesn't list secondary voltage as, if I am correct, that would be influenced by coil choice. Primary voltage for the street versions are 480v. MSD lists a similar 450-480 for the 6 series and DIS. The 7 series lists 570. Interestingly the secondary voltage for all MSD of the above MSD units is listed at 47k regardless of the primary voltage.
There is some really good information in the M&W catalog on basic ignition setup. A good read. http://www.mwignitions.com/pdf/mw8.pdf
07-31-09, 05:24 PM
#63
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I have no idea what the 500R is rated at and I've search the net briefly. Am curious to see some numbers on it.
M&W doesn't list secondary voltage as, if I am correct, that would be influenced by coil choice. Primary voltage for the street versions are 480v. MSD lists a similar 450-480 for the 6 series and DIS. The 7 series lists 570. Interestingly the secondary voltage for all MSD of the above MSD units is listed at 47k regardless of the primary voltage.
There is some really good information in the M&W catalog on basic ignition setup. A good read. http://www.mwignitions.com/pdf/mw8.pdf
Again, this was just reading on the interwebs
08-06-09, 11:34 AM
#66
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i plan on running 18-20 psi on E85, can the stock coils take me that far?
EDIT: just reread first post... can i get away with a Twin Power or comparable (in price) system if i only go to 20 psi?
EDIT: just reread first post... can i get away with a Twin Power or comparable (in price) system if i only go to 20 psi?
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