Fuel help

onefastman · 12-25-2009, 09:24 PM

Can we run Vp C12 in our cars if we have no cats? I can get some very cheaply tomorrow and need to know asap.

JohnL135I · 12-25-2009, 09:42 PM

You always run the risk of fowling your O2 sensors if your running leaded race gas even if you don't have cats.

Its your choice, however the cost of new O2 sensors is not cheap.

onefastman · 12-25-2009, 09:44 PM

How much race gas would it take to foul the sensors?

JohnL135I · 12-25-2009, 09:48 PM

If this is a 1/4 mile day for you and your going to run 5 gallons or so, I don't think there will be an issue. However, if your going to run C12 on a daily basis, then it could cause some issues.

onefastman · 12-25-2009, 09:52 PM

This would be just for the track on top of methanol. Do you think I should just stick to meth, will race gas on top make much of a difference?

12-25-2009, 09:24 PM	#1
onefastman Major General 159 Rep 5,689 Posts Drives: 2009 135i 2011 e92m dct Join Date: Sep 2009 Location: Earth iTrader: (15)	Fuel help Can we run Vp C12 in our cars if we have no cats? I can get some very cheaply tomorrow and need to know asap.
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12-25-2009, 09:42 PM	#2
JohnL135I Donkey Kong King 89 Rep 1,129 Posts Drives: 2012 Boss 302 Join Date: Dec 2007 Location: Sahuarita, AZ iTrader: (3)	You always run the risk of fowling your O2 sensors if your running leaded race gas even if you don't have cats. Its your choice, however the cost of new O2 sensors is not cheap. __________________ [SIGPIC][/SIGPIC]
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12-25-2009, 09:44 PM	#3
onefastman Major General 159 Rep 5,689 Posts Drives: 2009 135i 2011 e92m dct Join Date: Sep 2009 Location: Earth iTrader: (15)	How much race gas would it take to foul the sensors?
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12-25-2009, 09:48 PM	#4
JohnL135I Donkey Kong King 89 Rep 1,129 Posts Drives: 2012 Boss 302 Join Date: Dec 2007 Location: Sahuarita, AZ iTrader: (3)	If this is a 1/4 mile day for you and your going to run 5 gallons or so, I don't think there will be an issue. However, if your going to run C12 on a daily basis, then it could cause some issues. __________________ [SIGPIC][/SIGPIC]
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12-25-2009, 09:52 PM	#5
onefastman Major General 159 Rep 5,689 Posts Drives: 2009 135i 2011 e92m dct Join Date: Sep 2009 Location: Earth iTrader: (15)	This would be just for the track on top of methanol. Do you think I should just stick to meth, will race gas on top make much of a difference?
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