What ignition would you go with or opinion on this
07-12-2002, 03:29 PM
#11
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Join Date: Jan 2002
Location: Birmingham, AL
Posts: 844
Originally Posted by watch out' date='Jul 8 2002, 07:49 AM
ok lets see! i have over 600 rwhp on stock FD coils! with 3 msd 6a boxes!
STEPHEN
07-12-2002, 04:24 PM
#12
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Join Date: Nov 2001
Location: Bay Area, CA
Posts: 7,316
Originally Posted by SPOautos' date='Jul 12 2002, 06:29 PM
[quote name='watch out' date='Jul 8 2002, 07:49 AM']ok lets see! i have over 600 rwhp on stock FD coils! with 3 msd 6a boxes!
STEPHEN[/quote]
Yeah, alot of people I know with 3rd gen's and a standalone ECU like to use 2nd gen coils.
07-22-2002, 06:12 PM
#13
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Join Date: Jul 2002
Posts: 253
i think i was the first guy to go with an msd ignition, upgraded it to something like you are talking about a few years ago, and have recently read a few things that raise a few questions. first, i'll tell you what did and why and what i've learned about it over time.
i have an msd digital 6 on the leading, a dis2 on the trailing and 4 blaster coils. the amps are mounted on the back of the cargo area separator (see below). i have the battery in the bin behind the driver's seat (i know, i know, but i have a very big dog in the passenger's seat...). number 2 gauge wire goes up from the bin through the iside of the panel to a flaming river kill switch and from there to the amps. the number 2 gauge wires to the coils all go down along the driver's side rail, through the firewall and to the coils. the 2 leading msd blaster coils are mounted up high on the front of the driver's side fender well and the 2 trailings are mounted way down at the rear of the fender well.
the setup works great. the most noticeable things about it are that there is never any break up at any rpm. no stuttering, stumbling, no nothing. and, it pulls very clean and crisp (if you know what i mean) at very high rpm (>6000rpm). before with a crane marine (thru mid 1999), this wasn't true. it did all the things the msd's don't. also, it adds power, though i never did enough dynoing and didn;t keep what i did do to show it. with a single turbo, and enough fuel, you can really pick up some power from a better spark on the trailing firing.
now, i think this has been a great ignition. i really like the digital boxes, because they suppress emi/rfi well and they are very accurate in firing. (i don't know if the 6A's are digital and suppress emi/rfi?) i think this accuracy is important at high rpm (>6000rpm), since you can't afford a mistake. also, i have been decreasing the amount of timing split i run and again this greater accuracy gives me more comfort that nothing is going to cause the trailing to fire before the leading even when the split is <6 degrees.
i have heard some concerns on a number of points that do seem to have theoretical merit. first, the digital 6 is wired to both leading coils and fires them both every time. apparently the drain on the amp from firing both at the same time somewhat reducesw the output from the amp and lowers the actual spark power going to the plugs. it may also effect the charge times on the coils, but i'm not sure. i was told that a better way to do it was to split the lead from the igniter to 2 digital 6's-- one for each leading coil-- and this would eliminate the problem. again, i have never noticed anything here and have no plans to go that way right now. secondly, the dis2 apparently only has one amp and it is used by both the channels. the amp itself is the same as that in the digital 6. the thing is that there is some question of the power of the amp to handle both channels. can the amp reharge in time? anyway, again, i have had no problems with this setup.
i do think that using msd coils has helped. the amps are really designed to be used with their coils and it works better together. the rise times on the msd coils is very very fast. much faster than stock. this means you'll get full power at high rpm and that the coils will run cooler.
-gordon
i have an msd digital 6 on the leading, a dis2 on the trailing and 4 blaster coils. the amps are mounted on the back of the cargo area separator (see below). i have the battery in the bin behind the driver's seat (i know, i know, but i have a very big dog in the passenger's seat...). number 2 gauge wire goes up from the bin through the iside of the panel to a flaming river kill switch and from there to the amps. the number 2 gauge wires to the coils all go down along the driver's side rail, through the firewall and to the coils. the 2 leading msd blaster coils are mounted up high on the front of the driver's side fender well and the 2 trailings are mounted way down at the rear of the fender well.
the setup works great. the most noticeable things about it are that there is never any break up at any rpm. no stuttering, stumbling, no nothing. and, it pulls very clean and crisp (if you know what i mean) at very high rpm (>6000rpm). before with a crane marine (thru mid 1999), this wasn't true. it did all the things the msd's don't. also, it adds power, though i never did enough dynoing and didn;t keep what i did do to show it. with a single turbo, and enough fuel, you can really pick up some power from a better spark on the trailing firing.
now, i think this has been a great ignition. i really like the digital boxes, because they suppress emi/rfi well and they are very accurate in firing. (i don't know if the 6A's are digital and suppress emi/rfi?) i think this accuracy is important at high rpm (>6000rpm), since you can't afford a mistake. also, i have been decreasing the amount of timing split i run and again this greater accuracy gives me more comfort that nothing is going to cause the trailing to fire before the leading even when the split is <6 degrees.
i have heard some concerns on a number of points that do seem to have theoretical merit. first, the digital 6 is wired to both leading coils and fires them both every time. apparently the drain on the amp from firing both at the same time somewhat reducesw the output from the amp and lowers the actual spark power going to the plugs. it may also effect the charge times on the coils, but i'm not sure. i was told that a better way to do it was to split the lead from the igniter to 2 digital 6's-- one for each leading coil-- and this would eliminate the problem. again, i have never noticed anything here and have no plans to go that way right now. secondly, the dis2 apparently only has one amp and it is used by both the channels. the amp itself is the same as that in the digital 6. the thing is that there is some question of the power of the amp to handle both channels. can the amp reharge in time? anyway, again, i have had no problems with this setup.
i do think that using msd coils has helped. the amps are really designed to be used with their coils and it works better together. the rise times on the msd coils is very very fast. much faster than stock. this means you'll get full power at high rpm and that the coils will run cooler.
-gordon
07-22-2002, 06:45 PM
#14
Senior Member
Join Date: Nov 2001
Posts: 477
Demetrios has the same setup as Gordon. D runs a **** load of boost as well as Nos and has had great sucess with this ignition setup, which is why I'll be going the same route. For the time being, I'll just be getting a digital 6 for the leading coil.
07-25-2002, 08:49 AM
#19
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Join Date: Nov 2001
Location: Bay Area, CA
Posts: 7,316
Originally Posted by Shaolin Racing' date='Jul 25 2002, 11:14 AM
Can you just hook the msd units up and go,or is there some adjusting to to do with them first?
08-05-2002, 09:55 AM
#20
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Join Date: Jan 2002
Location: Birmingham, AL
Posts: 844
Originally Posted by Shaolin Racing' date='Jun 22 2002, 04:19 AM
2 MSD 6A's on the trailing
1 MSD 6A on the leading
1 MSD Coil for the leading
1 MSD Coil for the trailing
I'm thinking this will be a bad *** setup,what do you think?
1 MSD 6A on the leading
1 MSD Coil for the leading
1 MSD Coil for the trailing
I'm thinking this will be a bad *** setup,what do you think?
Hope that gives you some good info!!!
STEPHEN