R35 GTR coils on an Evo 8/9?
Hitachi IGC0079 coils will come with a sticker on the top with the part number and I don't see any issues getting them from Rock Auto. You will need to modify the coils and have your tuner adjust the dwell settings to work properly on an Evo. We have an option on our site to have them modified when you order them. We sell replacement boots on our site here.
Hitachi IGC0079 coils will come with a sticker on the top with the part number and I don't see any issues getting them from Rock Auto. You will need to modify the coils and have your tuner adjust the dwell settings to work properly on an Evo. We have an option on our site to have them modified when you order them. We sell replacement boots on our site here.
The spings will need to be stretched to a total length of 2.75" to make contact with the spark plugs. If you have any questions feel free to reach out to support@jdcustomsusa.com.
The spings will need to be stretched to a total length of 2.75" to make contact with the spark plugs. If you have any questions feel free to reach out to support@jdcustomsusa.com.
Thank you really appreciate your help!!
how do you know they went bad? I am having trust issues with my old (a wire to #4 broke and #3 has lower resistance) AND new COP kit (#4 seem weak or overheating)
spark plugs didn't do it, swapped in a friend's coils and the car ran fine.
not sure about wires breaking and stuff like that though. what COP kit? #4 does see a bit more heat in general, right?
Finding the exact one that is failing is a bit of a struggle sometimes though lol.
new kit I put together recently but it does not have a mounting plate, maybe thats important so I ordered a new one. Still waiting @JD Customs USA
my tuner had to replace 1 plug, and that plug is still super white after tuning and 1/2 autox. I just swapped 1 and 4 injector, coil and plug and will test tonight but I doubt I can replicate the heat level and serious misfire
Last edited by ViciousLSD; Aug 13, 2024 at 10:26 AM.
if one's on the way out, it's probable the others are getting close to the end also. probably worth replacing all 4, for me my spoolinup cop was one of the originals, so it took quite a bit of time before it died. I think I mentioned 8 years but actually I think it's longer than that... maybe closer to 10-12 years. It was on my black 9 before I swapped cars, which is 2013 so..









