10.2 Compression Iron Head Setup

[mario03srt]

10.2:1 is borderline for detonation on pump fuel. You may get way with it with some careful planning. Heat is the problem with det. If you can reduce engine heat & use cold air induction, that will help. So a good free flowing coolant system. Blocking off some of the exh xover heat will probably help to keep the A/F mixture cooler. A friend had an engine that pinged & he installed an engine oil cooler. No other changes, it stopped the pinging.

Here is my home brew CAI fed by the Mopar Snorkle. Thanks to FABO.

 

[mario03srt]

• Here is a shot of one of the spark plugs .042 gap. Champion 12YC I remembered had taken a pic before the teardown. Once again this is a FiTech fuel setup. To me it looks good but I'm no expert.
  

 

[yellow rose]

• Here is a shot of one of the spark plugs .042 gap. Champion 12YC I remembered had taken a pic before the teardown. Once again this is a FiTech fuel setup. To me it looks good but I'm no expert. View attachment 1715723718

From what can be seen the tune is pretty close. I doubt it was detonating. It wouldn’t hurt to drop the coolant temp to 160 IF the cooling system will do it.

 

[mario03srt]

From what can be seen the tune is pretty close. I doubt it was detonating. It wouldn’t hurt to drop the coolant temp to 160 IF the cooling system will do it.

What about a cooler plug? Any suggestions?

 

[yellow rose]

What about a cooler plug? Any suggestions?

At your compression ratio you are about right on heat range. You can try a range colder and see how it turns out, but that is pretty close.

 

[rumblefish360]

Here is my home brew CAI fed by the Mopar Snorkle. Thanks to FABO.

View attachment 1715723716

Nice job, that’s the way to do it.

 

[mario03srt]

From what can be seen the tune is pretty close. I doubt it was detonating. It wouldn’t hurt to drop the coolant temp to 160 IF the cooling system will do it.

I have a Milodon 160 deg on the way!

 

[TT5.9mag]

• Here is a shot of one of the spark plugs .042 gap. Champion 12YC I remembered had taken a pic before the teardown. Once again this is a FiTech fuel setup. To me it looks good but I'm no expert. View attachment 1715723718

I see no signs of detonation on that plug.