Reply to "Delay Mechanical Ignition advance"

murrayreidMember

I had terrible problem with pinging when I first got my car back on the road. Initial ignition advance was 10deg and I just could work out what was wrong. It knocked awfully around 2000 - 2500 rpm, just as you report.

Oddly the car ran well on choke but this turned out to be a red-herring.

Someone suggested the problem may be that I wasn't getting enough cold air into the carb. So I have temporarily taken out the rear quarter lights. What a difference - clean acceleration, no detonation, even under extreme load. It wasn't that the car ran well on choke - it was that the carb was cold!

I am now having an outfit in the UK make me some blown clear polycabonate vents to fit instead of the quarterlights and am considering fitting one of the Spectre Performance cold air ram style air boxes ducted to these vents.

9/4/1612:27 PM

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