Leaded Gas Vs. Unleaded gas?
08-10-2005, 09:02 PM
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Leaded Gas Vs. Unleaded Gas? Ok which gas is better? I mean I thought lead in gas incresese the pinging?
I know it is not good for the cats and the Sensors, But lead in gas incresses the octane this I know. So what incresses the pinging?
I know it is not good for the cats and the Sensors, But lead in gas incresses the octane this I know. So what incresses the pinging?
Last edited by priscilla ls1; 08-10-2005 at 09:17 PM.
08-10-2005, 10:00 PM
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You have to tune to your octane for max power,you just can't tune on pump gas and then put high octane in you r car and expect more power.Usually you will make less power with high octane if your not tuned on that fuel.Leaded fuel burns cooler and slower then unleaded fuel also.
08-10-2005, 10:35 PM
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Tetraethyl lead had plenty of energy content
(carbon & hydrogen count is like octane) so
it slows burn without costing you power. But
in an engine that doesn't need it it's only more
soot, and not nice soot.
The other thing lead did was keep valves from
chowing into old unhardened-seat iron heads.
But ours don't need that.
When the O2 sensors die you will spend some
time with a pretty messed up fueling situation
before (hopefully) it just sets a light and goes
open loop. Then you hope your open loop tune
can stand on its own without much correction.
Not all medicine helps you.
(carbon & hydrogen count is like octane) so
it slows burn without costing you power. But
in an engine that doesn't need it it's only more
soot, and not nice soot.
The other thing lead did was keep valves from
chowing into old unhardened-seat iron heads.
But ours don't need that.
When the O2 sensors die you will spend some
time with a pretty messed up fueling situation
before (hopefully) it just sets a light and goes
open loop. Then you hope your open loop tune
can stand on its own without much correction.
Not all medicine helps you.
08-10-2005, 10:50 PM
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Originally Posted by jimmyblue
Tetraethyl lead had plenty of energy content
(carbon & hydrogen count is like octane) so
it slows burn without costing you power. But
in an engine that doesn't need it it's only more
soot, and not nice soot.
The other thing lead did was keep valves from
chowing into old unhardened-seat iron heads.
But ours don't need that.
When the O2 sensors die you will spend some
time with a pretty messed up fueling situation
before (hopefully) it just sets a light and goes
open loop. Then you hope your open loop tune
can stand on its own without much correction.
Not all medicine helps you.
(carbon & hydrogen count is like octane) so
it slows burn without costing you power. But
in an engine that doesn't need it it's only more
soot, and not nice soot.
The other thing lead did was keep valves from
chowing into old unhardened-seat iron heads.
But ours don't need that.
When the O2 sensors die you will spend some
time with a pretty messed up fueling situation
before (hopefully) it just sets a light and goes
open loop. Then you hope your open loop tune
can stand on its own without much correction.
Not all medicine helps you.
Last edited by priscilla ls1; 08-10-2005 at 10:55 PM.
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08-11-2005, 08:41 PM
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Lead only existed because hardened valve seats did'nt...
the best GAS is VP116 or C16 etc... Ethanol alcohol beats both and is relatively easy to convert to. Methanol beats Ethanol at the track but unpractical on the street and eats fuel systems.
the best GAS is VP116 or C16 etc... Ethanol alcohol beats both and is relatively easy to convert to. Methanol beats Ethanol at the track but unpractical on the street and eats fuel systems.
