PSA......If you are using a Pertronix ignitor III..
#1
Le Mans Master
Thread Starter
PSA......If you are using a Pertronix ignitor III..
FYI, for anyone using a Pertronix Ignitor 3 model or the Pertronix Flame Thrower billet distributor (which uses the Ignitor III module). MAKE SURE YOU CHECK AND ADJUST THE REV LIMITER YOURSELF.... These things are sent out with supposedly a 5500 rev limiter pre-set.... However after chasing a nosing over problem in my new 357" sbc, I eventually stumbled across this rev limiter problem. First off, I paid no attention to the fact that the Flame Thrower billet distributor even HAD a rev limiter, once I found out about that, I read that the limiter is preset at 5500.... SO I didn't think it was my problem and my car was nosing over at 4700 or so, and it didn't sound/feel like a rev limiter....It would just nose over, stop revving and sputtered/choked etc. I thought for sure it was a fuel supply issue.
After testing fuel pressure many times and swapping fuel pumps, carbs, etc etc, I still had a serious nosing over issue about 4700 rpms or so. I decided to recurve the distributor and limit the centrifugal advance, upon doing that(it WAY over advanced out of the box), I decided to turn the rev limiter off since I was looking at the module and seeing the adjuster screw. After I put it back together, it pulled clean to 6100 rpms 3 passes in a row....
I have literally worked on this thing for 7 days trying to figure out why it didn't rev, I was just about to pull the valve springs and test them and decided to do this first....
So.....check/adjust your rev limiter because its probably not set right.
I'm posting this for future searchers here that may not be able to figure out why there car won't rev and all of the usual suspects don't pan out....
After testing fuel pressure many times and swapping fuel pumps, carbs, etc etc, I still had a serious nosing over issue about 4700 rpms or so. I decided to recurve the distributor and limit the centrifugal advance, upon doing that(it WAY over advanced out of the box), I decided to turn the rev limiter off since I was looking at the module and seeing the adjuster screw. After I put it back together, it pulled clean to 6100 rpms 3 passes in a row....
I have literally worked on this thing for 7 days trying to figure out why it didn't rev, I was just about to pull the valve springs and test them and decided to do this first....
So.....check/adjust your rev limiter because its probably not set right.
I'm posting this for future searchers here that may not be able to figure out why there car won't rev and all of the usual suspects don't pan out....
#3
Le Mans Master
Thread Starter
#4
Race Director
That's a pretty good report overall. I'm sure you'd rather not be into it for a new set of pistons, but at the same time you'll be addressing some smaller stuff that might have cost you down the road had you not opened it up. Good luck with getting it all done, including the new paint.