Lead deposits

General engine tech -- Drag Racing to Circle Track

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CGT
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Re: Lead deposits

Post by CGT » Sat Jun 09, 2018 8:51 am

randy331 wrote:
Sat Jun 09, 2018 8:19 am
BBO Omega wrote:
Tue Jun 05, 2018 5:50 pm
$7.99 a gallon does get a bit pricey. I only spray 150hp when I do.
That's a good candidate for 100 ll AV gas. $ 4.30 a gallon at my local airport.

Randy
High Altitude Fuel!!! :mrgreen:

77cruiser
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Re: Lead deposits

Post by 77cruiser » Sat Jun 09, 2018 4:01 pm

CGT wrote:
Sat Jun 09, 2018 8:51 am
randy331 wrote:
Sat Jun 09, 2018 8:19 am
BBO Omega wrote:
Tue Jun 05, 2018 5:50 pm
$7.99 a gallon does get a bit pricey. I only spray 150hp when I do.
That's a good candidate for 100 ll AV gas. $ 4.30 a gallon at my local airport.

Randy
High Altitude Fuel!!! :mrgreen:
And low RPM engines. :lol:
Jim

Frankshaft
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Re: Lead deposits

Post by Frankshaft » Sat Jun 09, 2018 4:15 pm

77cruiser wrote:
Sat Jun 09, 2018 4:01 pm
CGT wrote:
Sat Jun 09, 2018 8:51 am
randy331 wrote:
Sat Jun 09, 2018 8:19 am


That's a good candidate for 100 ll AV gas. $ 4.30 a gallon at my local airport.

Randy
High Altitude Fuel!!! :mrgreen:
And low RPM engines. :lol:
Don't forget, it's also a very dry fuel

bentvalves
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Re: Lead deposits

Post by bentvalves » Sat Jun 09, 2018 4:18 pm

what does a "dry fuel" mean?

less lubricity ?

Frankshaft
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Re: Lead deposits

Post by Frankshaft » Sat Jun 09, 2018 4:29 pm

bentvalves wrote:
Sat Jun 09, 2018 4:18 pm
what does a "dry fuel" mean?

less lubricity ?
I don't know, I wondered the same thing. I was being sarcastic, like the 2 replys I quoted. I have heard that said numerous times though, when people talk about LL 100 octane av gas. Wouldn't the lead make it not dry? Lead is a lubricant, is it not? Even though it's got low lead compared to what I am not sure, but there still is lead in it, and would be less dry than ethanol blended fuels and unleaded fuels that we put in our cars ? Right?

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Re: Lead deposits

Post by Tuner » Sat Jun 09, 2018 5:36 pm

77cruiser wrote:
Sat Jun 09, 2018 4:01 pm
CGT wrote:
Sat Jun 09, 2018 8:51 am
randy331 wrote:
Sat Jun 09, 2018 8:19 am


That's a good candidate for 100 ll AV gas. $ 4.30 a gallon at my local airport.

Randy
High Altitude Fuel!!! :mrgreen:
And low RPM engines. :lol:
Lucky it runs OK at sea level or planes would never get off the ground. #-o

user-23911

Re: Lead deposits

Post by user-23911 » Sat Jun 09, 2018 7:05 pm

bentvalves wrote:
Sat Jun 09, 2018 4:18 pm
what does a "dry fuel" mean?

less lubricity ?
CNG or LPG

randy331
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Re: Lead deposits

Post by randy331 » Sat Jun 09, 2018 9:35 pm

Tuner wrote:
Sat Jun 09, 2018 5:36 pm
77cruiser wrote:
Sat Jun 09, 2018 4:01 pm
CGT wrote:
Sat Jun 09, 2018 8:51 am


High Altitude Fuel!!! :mrgreen:
And low RPM engines. :lol:
Lucky it runs OK at sea level or planes would never get off the ground. #-o

When I run Av gas in my Nova I keep wanting to call the tower for clearance to stage the car. :D
Tower to cosmetically challenged Nova , cleared to stage on right lane. :lol:

Randy

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af2
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Re: Lead deposits

Post by af2 » Sat Jun 09, 2018 9:51 pm

randy331 wrote:
Sat Jun 09, 2018 8:19 am
BBO Omega wrote:
Tue Jun 05, 2018 5:50 pm
$7.99 a gallon does get a bit pricey. I only spray 150hp when I do.
That's a good candidate for 100 ll AV gas. $ 4.30 a gallon at my local airport.

Randy
But it is bad for the engine!!!!!! LOL
GURU is only a name.
Adam

cjperformance
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Re: Lead deposits

Post by cjperformance » Sat Jun 09, 2018 11:46 pm

randy331 wrote:
Sat Jun 09, 2018 9:35 pm
Tuner wrote:
Sat Jun 09, 2018 5:36 pm
77cruiser wrote:
Sat Jun 09, 2018 4:01 pm


And low RPM engines. :lol:
Lucky it runs OK at sea level or planes would never get off the ground. #-o

When I run Av gas in my Nova I keep wanting to call the tower for clearance to stage the car. :D
Tower to cosmetically challenged Nova , cleared to stage on right lane. :lol:

Randy
Attention Randy ,,, all clear for takeoff ... :lol:
glenelgjettybirdmancomp.newsltd-800x450.jpg
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Craig.

user-23911

Re: Lead deposits

Post by user-23911 » Sun Jun 10, 2018 3:02 am

Frankshaft wrote:
Sat Jun 09, 2018 4:15 pm
77cruiser wrote:
Sat Jun 09, 2018 4:01 pm
CGT wrote:
Sat Jun 09, 2018 8:51 am


High Altitude Fuel!!! :mrgreen:
And low RPM engines. :lol:
Don't forget, it's also a very dry fuel
bentvalves wrote:
Sat Jun 09, 2018 4:18 pm
what does a "dry fuel" mean?

Leaded fuel isn't "dry" at all, it's the opposite.

Unleaded fuel is "dry" as is both CNG and LPG.
Tetraethyl lead is an oily substance which lubricates the valves.
When the lead was removed from pump fuel, valve seats had to be hardened (or at least that's what we were told my the marketing gurus of the time) otherwise they wore out quicker.
Same problems as converting to CNG or LPG unless you use an upper cylinder lubricant.

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