Installed MSD 6A, now breaking up after 5K
11-08-08, 05:11 PM
#1
Fixed the wheelhop
Thread Starter
iTrader: (9)
Join Date: Nov 2001
Location: St. Petersburg, FL
Posts: 486
Likes: 0
Received 0 Likes
on
0 Posts
Installed MSD 6A, now breaking up after 5K
I never had any ignition problems before, I got the MSD to see if it would help at all. Now it breaks up at about 5K, and is running like **** under WOT. Cruising is fine. I checked the spark, looks good, I ran the ground to the chassis, then added one to the rotor housing which didnt help. Im about to say **** it and take it out, like I said it ran fine before. Just wondering if anyone had a similar problem with an MSD 6A.
11-08-08, 09:11 PM
#4
Fixed the wheelhop
Thread Starter
iTrader: (9)
Join Date: Nov 2001
Location: St. Petersburg, FL
Posts: 486
Likes: 0
Received 0 Likes
on
0 Posts
I have...
Microtech LT8S
stock CAS
NGK BUR9EQP leading
NGK BUR9EQ trailing
factory NGK wires
60-1 @ 14-15 psi
again, it runs fine idling or crusing, just breaks up, pulls pathetic, power drops off big time after 5K
Microtech LT8S
stock CAS
NGK BUR9EQP leading
NGK BUR9EQ trailing
factory NGK wires
60-1 @ 14-15 psi
again, it runs fine idling or crusing, just breaks up, pulls pathetic, power drops off big time after 5K
11-08-08, 09:15 PM
#5
Fixed the wheelhop
Thread Starter
iTrader: (9)
Join Date: Nov 2001
Location: St. Petersburg, FL
Posts: 486
Likes: 0
Received 0 Likes
on
0 Posts
oh and stock leading and trailing coils
Just got a reply in the rotary performance section, he says the factory igniter has to be bypassed? WTF? I thought an MSD 6A was as easy to install as an HKS Twin Power?
Just got a reply in the rotary performance section, he says the factory igniter has to be bypassed? WTF? I thought an MSD 6A was as easy to install as an HKS Twin Power?
11-08-08, 09:21 PM
#6
they are installed in a different way. On the 6A, the wires are cut--the signal is intercepted. http://fc3spro.com/TECH/HOWTO/CDI/cdi.html
On the Twin Power, the wires are spliced in and not cut.
On the Twin Power, the wires are spliced in and not cut.
11-10-08, 08:05 PM
#7
The king of the highway!
iTrader: (2)
Join Date: May 2004
Location: Home of the 305 Boyz(miami)
Posts: 2,988
Likes: 0
Received 0 Likes
on
0 Posts
I never had any ignition problems before, I got the MSD to see if it would help at all. Now it breaks up at about 5K, and is running like **** under WOT. Cruising is fine. I checked the spark, looks good, I ran the ground to the chassis, then added one to the rotor housing which didnt help. Im about to say **** it and take it out, like I said it ran fine before. Just wondering if anyone had a similar problem with an MSD 6A.
http://store.summitracing.com/partde...5&autoview=sku
and 2 of these this should cost you about $400
http://store.summitracing.com/partde...5&autoview=sku
i run the msd with these pushing 600 with no problems
imo from what ive seen those msd boxes produce way to much spark for the stock coils
p.s. if your near my power (the one on the left 478) you can get ngk platinum (10's heat range) spark plugs $35 each at napa
Last edited by darkphantom; 11-10-08 at 08:07 PM.
Trending Topics
11-10-08, 10:31 PM
#8
NYC's Loudest FD
Try this: Stock FD 93-up coils will fail with MSDs prematurely due to the MSD making the coils too hot, they overheat and fail. Replace the Leading coil with one from an second generation FC T2 RX7 and you'll be fine. I went through this time and time again until I did that, no more problems since. NOTE: You should only use an MSD ignition on the Leading side only, makes no sense to bother with the Trailing side of the ignition since it won't increase power at all.
Last edited by RX794; 11-10-08 at 10:35 PM.
11-10-08, 11:49 PM
#9
Try this: Stock FD 93-up coils will fail with MSDs prematurely due to the MSD making the coils too hot, they overheat and fail. Replace the Leading coil with one from an second generation FC T2 RX7 and you'll be fine. I went through this time and time again until I did that, no more problems since. NOTE: You should only use an MSD ignition on the Leading side only, makes no sense to bother with the Trailing side of the ignition since it won't increase power at all.
11-10-08, 11:57 PM
#10
NYC's Loudest FD
I'm running the same afr's at peak and haven't had an issue with loosing any power.
11-11-08, 05:29 AM
#11
Junior Member
Join Date: May 2006
Location: Townsville, Australia
Posts: 20
Likes: 0
Received 0 Likes
on
0 Posts
my crane high 6's were doin the same thing, problem was on the dial rev limiters on the boxes were set to 5g i didnt thing it would matter as it was getting the pulse from the microtech when to fire :-S
10-07-09, 04:06 PM
#12
Full Member
iTrader: (12)
Join Date: Apr 2009
Location: new york
Posts: 130
Likes: 0
Received 0 Likes
on
0 Posts
okay should i buy the MSD 6a or 6al? im going to run 3 msd boxes and 4 msd coils. i know that the 6al has a rev limiter and ignition retard. i want to run 30lbs of boost with 50/50 meth/alcohol injection. do rotaries need retarded timing under boost or will my tuner take care of that via the power fc? thanks guys!
10-08-09, 09:05 AM
#13
35r 13b first gen
iTrader: (3)
Join Date: Apr 2002
Location: Richland Center WI
Posts: 1,290
Likes: 0
Received 0 Likes
on
0 Posts
Try this: Stock FD 93-up coils will fail with MSDs prematurely due to the MSD making the coils too hot, they overheat and fail. Replace the Leading coil with one from an second generation FC T2 RX7 and you'll be fine. I went through this time and time again until I did that, no more problems since. NOTE: You should only use an MSD ignition on the Leading side only, makes no sense to bother with the Trailing side of the ignition since it won't increase power at all.
10-21-09, 05:06 PM
#15
Fixed the wheelhop
Thread Starter
iTrader: (9)
Join Date: Nov 2001
Location: St. Petersburg, FL
Posts: 486
Likes: 0
Received 0 Likes
on
0 Posts
Good point bro, hey original poster here...
Ive since been cranking up the boost, shortened the intercooler piping, installed some heat sheilding, some other stuff...
Im running 17-18 psi (with 50/50 water/alcohol injection) and still running stock TII coils, still no breakup, running great, pulling strong...I still want to get an HKS twin power, but so far so good!!
Ive since been cranking up the boost, shortened the intercooler piping, installed some heat sheilding, some other stuff...
Im running 17-18 psi (with 50/50 water/alcohol injection) and still running stock TII coils, still no breakup, running great, pulling strong...I still want to get an HKS twin power, but so far so good!!
Thread
Thread Starter
Forum
Replies
Last Post
ncds_fc
New Member RX-7 Technical
1
08-15-15 10:06 AM
