Spark cut at high rpm?

demby123 · Post by **demby123** » Mon Jun 23, 2014 2:17 am

Spark cuts out at 5500rpm( Used a timing light to check it). Soft rev limit set at 7200 rpm, with no hard rev limiter installed. Does the EDIS really have no built in rev limiter? I can't really figure out why it would cut at that rpm...

Video
http://youtu.be/4UwTzCyCgJQ

Alex B · Post by **Alex B** » Tue Jul 08, 2014 9:25 am

How rigid is your VR sensor brakcet? Might be it starts to vibrate at 5500rpm and that syncronisation isn't established again before rpm is down to ±1500rpm.

Alex

demby123 · Post by **demby123** » Thu Jul 17, 2014 5:45 am

After a bit of research that's what I thought may have happened. I'll have a go at solving this problem when I get my distributor seal kit this weekend. The sensor is a modified stock distributor with a 72-2 trigger wheel and the original pickup sensor

demby123 · Post by **demby123** » Sat Jul 19, 2014 12:07 am

Solved it, it still misfires, but at a much higher rpm

Post by **brentp** » Thu Aug 14, 2014 9:07 pm

Glad you mostly figured it out. How many cylinders is the application? The upper rev limit for EDIS-4 is about 8000 RPM, max - less for EDIS-6 and 8.