If 100 octane gas was available.......
Originally Posted by sleeperstyle
it would absolutly not smell better. you are smelling the lead in the racegas that makes it sweet- 100 unleaded would smell no different than 93 unleaded or 87 unleaded.
i wish it was at pumps. i know i could make use of it, but obviously just putting it in your car would not net any gains.
burning a valve? not even leaded gas will do that. that person is a tool.
i wish it was at pumps. i know i could make use of it, but obviously just putting it in your car would not net any gains.
burning a valve? not even leaded gas will do that. that person is a tool.
for those interested in using 100/104 octane unleaded gasoline and don't have it at your pumps, you can purchase it online
http://www.hiperfuels.com/index.cgi?...dedDepts=81048
unleaded 100 octane, 5gallons - $59.40
unleaded 104 octane, 5gallons - $59.70
which i think is a rip off, almost $12/gallon and it's only ~$3.50/gallon at the pump
if you buy the 54 gallon drum online you can get it for bout ~5.50/gallon
btw, it says "It contains a comprehensive additive package for greater engine protection and reduced fuel system deposits as measured by the BMW test." ... so how does it exactly add more carbon deposits again?
http://www.hiperfuels.com/index.cgi?...dedDepts=81048
unleaded 100 octane, 5gallons - $59.40
unleaded 104 octane, 5gallons - $59.70
which i think is a rip off, almost $12/gallon and it's only ~$3.50/gallon at the pump
if you buy the 54 gallon drum online you can get it for bout ~5.50/gallon
btw, it says "It contains a comprehensive additive package for greater engine protection and reduced fuel system deposits as measured by the BMW test." ... so how does it exactly add more carbon deposits again?
Last edited by madpwr1; Jan 26, 2005 at 12:57 PM.
is 93 fine for 11:1? Im thinking of getting AFR heads w/ them shaved and gaskets to achieve 11:1. I have a cousin running 117(i think, somewhere around there) on 14.4:1 in his 390 '70 cuda putting out around 700hp
octane Higher the octane rating the slower the burn. For many years we've made it mandatory to decarbon the knock engine after every premium grade run because of carbon build-up. When the engine knocks an octane booster is add to the stream(toluene). MTBE is the main ingredient in premium gas. Go to Sherwin Williams and buy a gallon to toluene, smell it, then smell race gas and see if you can tell the difference.
Originally Posted by CHIEFMB2
When the engine knocks an octane booster is add to the stream(toluene). ...... Go to Sherwin Williams and buy a gallon to toluene..........
cool stuff..
and btw yea, 93 does smell better then 87... its just the additives they pour in it.
Originally Posted by sleeperstyle
it would absolutly not smell better. you are smelling the lead in the racegas that makes it sweet- 100 unleaded would smell no different than 93 unleaded or 87 unleaded.
i wish it was at pumps. i know i could make use of it, but obviously just putting it in your car would not net any gains.
burning a valve? not even leaded gas will do that. that person is a tool.
i wish it was at pumps. i know i could make use of it, but obviously just putting it in your car would not net any gains.
burning a valve? not even leaded gas will do that. that person is a tool.
Joined: Nov 2003
Posts: 6,216
Likes: 236
From: Wichita KS / Rancho San Diego
Originally Posted by CHIEFMB2
Higher the octane rating the slower the burn. For many years we've made it mandatory to decarbon the knock engine after every premium grade run because of carbon build-up. When the engine knocks an octane booster is add to the stream(toluene). MTBE is the main ingredient in premium gas. Go to Sherwin Williams and buy a gallon to toluene, smell it, then smell race gas and see if you can tell the difference.
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Originally Posted by CHIEFMB2
If you don't need a higher octane don't use it. I work in a refinery, when we blend gasoline we run a knock engine as we are blending. When we blend premium gasoline we find alot more carbon on the head and piston top after the blending. The motor runs off of a random stream taken from the blend line. The motor is used to adjust the octane level of the blend. So if you don't need it don't use it unless you like carbon build up.
Put it like this. Dont use it if you dont need it. Higher octane of course burns slower. If you use higher than you need you will have unburned gas left over. Unburned gas builds up as carbon. I argued with the guys at the dealership about my 4.3 CPI engine in my Blazer for a long time because my EGR kept clogging up. They said I need to quit running 93. I went to 89 (87 pings) and it hasnt done it since.
The only high dollar fuel I can see making more power is an oxygenated fuel.
