Anyone tried only 8 plugs on a high compression race application?

[TT5.9mag]

Any time you can delay spark timing and not lose power you gain power from less negative work.

Any NA engine should be built doing everything that can be done should be done to speed up the burn rate.

That’s higher compression, tighter quench and any modification to the heads and intake manifold that at least helps to atomize the fuel.

All that ends up with less timing and NA that’s a good thing.

I completely agree with that. There are things you can change that will effect the burn rate, chamber design, piston design, etc. Coils are not one of those things.

 

[junkyardhero]

I completely agree with that. There are things you can change that will effect the burn rate, chamber design, piston design, etc. Coils are not one of those things.

what about plugs gapped to 50? i mean, if 35 works with that old crappy points system then surely 50 is better with a magic hot coil! right?

and if 50, then why not 100? that's gotta at least double the burn rate!

 

[Newbomb Turk]

what about plugs gapped to 50? i mean, if 35 works with that old crappy points system then surely 50 is better with a magic hot coil! right?

and if 50, then why not 100? that's gotta at least double the burn rate!

Someone always stirring the pot lol

 

[junkyardhero]

Someone always stirring the pot lol

i mean, these are the conclusions that some of these things draw. MOAR IS BETTER!!

why only 50K volts coil? surely we have the technology for 100!

 

[remytherat]

I think that the only requirement for joining the site should be reciting ten times that coil voltage rating and increasing plug gap do not affect spark energy.

 

[junkyardhero]

I think that the only requirement for joining the site should be reciting ten times that coil voltage rating and increasing plug gap do not affect spark energy.

and here i was thinking that knowing the difference between: there, they're and their was a high bar.

at this point i'd settle for complete, intelligible sentences with a little bit of grammar.

 

[fishmens67]

I gap them .028 - .032.

 

[George Jets]

Proof is in the Pudding >

Mopar HEI
E-Core Coil
NGK GR4 Spark Plugs
Gapped at .050 ths.

Plugs burning clean, tailpipe burning clean, no unburned fuel leaving the engine.

Magic...


☆☆☆☆☆


.

 

[fishmens67]

Gapped at .050 ths.

The energy is in the kernel. I bet you braze with a big white flame. lol

 

[junkyardhero]

Proof is in the Pudding
View attachment 1716479088

this photo: tell me you don't know how to read a plug without telling me you don't know how to read a plug.

also, might want to cut back on the anti-seize

 

[remytherat]

Lmao. Looks like your electrode is melting

 

[MopaR&D]

Any time you can delay spark timing and not lose power you gain power from less negative work.

Any NA engine should be built doing everything that can be done should be done to speed up the burn rate.

That’s higher compression, tighter quench and any modification to the heads and intake manifold that at least helps to atomize the fuel.

All that ends up with less timing and NA that’s a good thing.

Same argument I was going to use, the twin plugs are a big reason G3 Hemis require so little timing advance compared to old-school engines.

 

[RustyRatRod]

I think that the only requirement for joining the site should be reciting ten times that coil voltage rating and increasing plug gap do not affect spark energy.

...and still some would fail to do it.

 

[TT5.9mag]

Same argument I was going to use, the twin plugs are a big reason G3 Hemis require so little timing advance compared to old-school engines.

I’m not sure I agree with that reasoning. The LS has one plug and makes best power at 28 degrees NA. They say having two points of ignition (usually on separate sides of the hemi chamber) causes the flame front to propagate faster and meet in the middle, leading to more complete combustion. Sure it makes sense in theory, but I’ve heard (from people much smarter than I am, and very high in the automotive industry) that the reason the gen 3 hemi has two plugs is because both of them were a compromise to the perfect location of where one plug would (should) be and can’t because of the valve placement. And they needed two because with one they couldn’t pass emissions.

 

[RockinRobin]

So, lots of theories, but nobody that answered has actually tried this. Thanks, I'll keep on trying to find someone who has actually done it.

 

[RustyRatRod]

So, lots of theories, but nobody that answered has actually tried this. Thanks, I'll keep on trying to find someone who has actually done it.

Yeah. I'm over here laughin my butt off that everybody's arguing it won't work while nobody's tried it. Theories be damned, do it yourself and find out. You have everything right in front of you. I'll really laugh like heck if it picks up some.

 

[TT5.9mag]

So, lots of theories, but nobody that answered has actually tried this. Thanks, I'll keep on trying to find someone who has actually done it.

No don’t keep looking. Plug one off and go run the car. Pretty please with sugar on top.

 

[junkyardhero]

So, lots of theories, but nobody that answered has actually tried this. Thanks, I'll keep on trying to find someone who has actually done it.

why wouldn't you just do the testing yourself? screw in a set of burnt plugs and run that **** and see what happens.

 

[408 swinger]

The Prefix Cascar engines used a distributor and used only one spark plug. They were a typical large bore, short stroke stock car type of build. I forget power numbers, but, good IIRC. I have not tried it in my gen 3 stuff. I've seen no reason to. 22 degrees on pump premium.