318 1/8 time improvement

[Newbomb Turk]

No, traction bars and old Mopars don't mix well. A cheap alternative is a pinion snubber and some drag shocks.

Good news is (at least according to Wallace) your ET/MPH line up.
60' to 1/4 Mile Calculator - Wallace Racing

RED X

 

[Newbomb Turk]

Here’s my plugs yup they don’t look good rich idle lean WOT ? Maybe I dunno

View attachment 1715717643

View attachment 1715717644

View attachment 1715717645

It’s not lean. It looks pretty close but could use a touch more timing and a better curve.

It could be fat at WOT but I can’t see down in the plug

 

[Newbomb Turk]

Its no different to leaded fuels. What leaves the colour on the plug is the carbon left over from the burn if the mixture is richer than stoich i.e richer than 14.7. The reason plugs remain white on the porcelain is the mixture there is very lean at time of ignition. When you improve the mixture "Quality" you can get the porcelain to colour as well. If the mixture isn't sufficiently compressed then the heat from ignition has to get it to a stage where it will burn and that takes a lot of the energy and the rest of the burn proceeds slower than it should and require more timing to get the pressure peak at the right place and time........

Not on US pump gas. He’s not down under is he?

 

[Hysteric]

Any hydrocarbons fuel. Makes no difference If it's leaded or not.

 

[Newbomb Turk]

Any hydrocarbons fuel. Makes no difference If it's leaded or not.

Yeah it does matter. You put color on the porcelain and it will be pig fat rich.

 

[Hysteric]

Yeah it does matter. You put color on the porcelain and it will be pig fat rich.

Bruce stated otherwise.

 

[Newbomb Turk]

Bruce stated otherwise.

Tuner says otherwise. Bruce was wrong. Simple as that.

Plus, I live here and I test. You put enough fuel in there to color the plug and you are pissing away power and killing rings.

 

[Hysteric]

Tuner says otherwise. Bruce was wrong. Simple as that.

Guess that settles that then. Out of curiosity where is C14 Race fuel made?

This stuff here:

VP C14 - Dominant Fuel in NHRA Championship Racing | VP Racing Fuels

Is that made in the US by any chance?

 

[Newbomb Turk]

Guess that settles that then. Out of curiosity where is C14 Race fuel made?

This stuff here:

VP C14 - Dominant Fuel in NHRA Championship Racing | VP Racing Fuels

Is that made in the US by any chance?

He's not running US made race fuel. He's on US made PUMP GAS.

And FWIW, I tune with race gas. No color on the plug. EVER. It's pig rich and a power loser.

 

[Hysteric]

He's not running US made race fuel. He's on US made PUMP GAS.

And FWIW, I tune with race gas. No color on the plug. EVER. It's pig rich and a power loser.

"In the case of our drag car we use VP fuels C14+ We have tried others with different distillation and oxygenation etc but they create other tuning issues. I have never maxed out the capabilities of the C14+ and changing to other fuel charateristics just mucks up my knowledge base."
This plug is from an engine using 2* 1085 cfm 6 barrel SmartCarby carburetors. The compression ratio of this engine is 15.3 to 1 and the cranking pressure is 300 psi. Fuel is VP C14+ (a leaded fuel). The engine timing is 28 degrees. This is lambda 0.83. Note how the shell has Hydrocarbon deposits on it that are consistent with the strap electrode and the colouration on the porcelain. This is indicating a good consistency of overall mixture with possibly optimum ignition timing. It is a well vaporized rich mixture.
This plug is close to ideal but it’s not right in some ways. This from the same engine as above but at lambda .87. But there is very little colour on the porcelain. This engine is using SmartCarby carburetion. 2 * 6 barrel 1085 CFM carburetors. You will notice the difference in deposit granule size by improved atomization. This is one drag strip run. After 4 runs the porcelain also slightly colored with tan,

So he gets colouration on the porcelain on his race engine on US Race Fuel......He does it on all fuels irrespective of where they come from. It has nothing to do with where the fuel is from and everything to do with Vaporization and Homogization and temperature and pressure of the combustion event.

 

[Newbomb Turk]

"In the case of our drag car we use VP fuels C14+ We have tried others with different distillation and oxygenation etc but they create other tuning issues. I have never maxed out the capabilities of the C14+ and changing to other fuel charateristics just mucks up my knowledge base."
This plug is from an engine using 2* 1085 cfm 6 barrel SmartCarby carburetors. The compression ratio of this engine is 15.3 to 1 and the cranking pressure is 300 psi. Fuel is VP C14+ (a leaded fuel). The engine timing is 28 degrees. This is lambda 0.83. Note how the shell has Hydrocarbon deposits on it that are consistent with the strap electrode and the colouration on the porcelain. This is indicating a good consistency of overall mixture with possibly optimum ignition timing. It is a well vaporized rich mixture.
This plug is close to ideal but it’s not right in some ways. This from the same engine as above but at lambda .87. But there is very little colour on the porcelain. This engine is using SmartCarby carburetion. 2 * 6 barrel 1085 CFM carburetors. You will notice the difference in deposit granule size by improved atomization. This is one drag strip run. After 4 runs the porcelain also slightly colored with tan,

So he gets colouration on the porcelain on his race engine on US Race Fuel......He does it on all fuels irrespective of where they come from. It has nothing to do with where the fuel is from and everything to do with Vaporization and Homogization and temperature and pressure of the combustion event.

Yep, read that before. You both are still wrong.