Joined
·
430 Posts
This isn't a major problem or at least I hope it's not.
In 5th gear on the interstate I mash it and everything is good up to about 4500rpm and then randomly the engine will start making a popping noise like a misfire not a detonation. I put a stronger new coil on it today and new spark plugs gapped to .32 like the 7M-GTE. the boost does spike about 3psi when I'm doing that due to load and such but that should not be too much of an issue considering the car is tuned at 12:1afr. I can play with the adjustments when I go out tonite if anyone thinks that's the problem. it's just real hard to diagnose that on a dynojet becasue the guy that does the tuning on my car has no way of putting a load on it. so the tuning is not totally exact, but much closer then me trying to do with without a wideband.
if anyone could give me some insite on this issue it would be appreciated
In 5th gear on the interstate I mash it and everything is good up to about 4500rpm and then randomly the engine will start making a popping noise like a misfire not a detonation. I put a stronger new coil on it today and new spark plugs gapped to .32 like the 7M-GTE. the boost does spike about 3psi when I'm doing that due to load and such but that should not be too much of an issue considering the car is tuned at 12:1afr. I can play with the adjustments when I go out tonite if anyone thinks that's the problem. it's just real hard to diagnose that on a dynojet becasue the guy that does the tuning on my car has no way of putting a load on it. so the tuning is not totally exact, but much closer then me trying to do with without a wideband.
if anyone could give me some insite on this issue it would be appreciated