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Author
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Topic: ethanol - gasoline - gasohol
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indyphil
Gearhead Posts: 414
From: Lafayette, IN, USA
Registered: Jul 2002
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posted 09-30-2002 09:25 AM
   
I was reading in the instruction book for my edelbrock carb (you can flame me later for buying edelbrock, and for reading the instruction book but hear me out)It says that if you run blended fuel it is more "volatile" which means it evaporates more readily, and will tend to run leaner because of the oxygenation. It makes hot starts more difficult, vapor locks easier etc... they say so long as its less than 10% ethanol it should not be a problem. I guess the fuel injected late model cars dont care because their oxygen sensor will adjust the fuelling for them to keep the mixture right. But for us it would be good to know who sells blended fuels and when. Apparently it is supposed to be a winter fuel, but people have been selling it year round. Could this explain why so many people have been having hard starting problems and vapor locking this summer? What can I do? Do i expect the guy behind that big carousel of cigarettes to know what blend the fuel is? I would like to buy the non blended type at least in summer. and I know a real engineer would never read the instructions, but I was having trouble sleeping last night, and it really helped.  ------------------
'68 coupe 289 2V
CAT engine performance engineer
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kid vishus
Gearhead Posts: 3894
From: middle of NC
Registered: Oct 2000
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posted 09-30-2002 09:52 AM
All we had in Iowa was a 10% blend, and I never had any problems with it in any of my carb equiped cars any time of the year. And just so you know, it was all I used. I used it year round, and even ran it in one of my lower compression race motors and never had any problems with it. I even won a couple of races using it for fuel. I really thought all these mis-conceptions about "gasohol" went out the window a LONG time ago. But I guess not yet.
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Pierre
Gearhead Posts: 356
From: France
Registered: Apr 2002
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posted 09-30-2002 10:15 AM
quote:
Originally posted by indyphil:
I was reading in the instruction book for my edelbrock carb (you can flame me later for buying edelbrock, and for reading the instruction book but hear me out)It says that if you run blended fuel it is more "volatile" which means it evaporates more readily, and will tend to run leaner because of the oxygenation. It makes hot starts more difficult, vapor locks easier etc... they say so long as its less than 10% ethanol it should not be a problem. I guess the fuel injected late model cars dont care because their oxygen sensor will adjust the fuelling for them to keep the mixture right. But for us it would be good to know who sells blended fuels and when. Apparently it is supposed to be a winter fuel, but people have been selling it year round. Could this explain why so many people have been having hard starting problems and vapor locking this summer? What can I do? Do i expect the guy behind that big carousel of cigarettes to know what blend the fuel is? I would like to buy the non blended type at least in summer. and I know a real engineer would never read the instructions, but I was having trouble sleeping last night, and it really helped.
At least edelbrocks comes with a manual  (when the simplicity of it doesn't really require one). My last holley came butt nak**, no manual, no fuel line, no air filter stud and you guys know how easy it is to get these parts around here 
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65darkhorse
Gearhead Posts: 239
From: 35,000 feet
Registered: Aug 2002
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posted 09-30-2002 10:19 AM
waddya mean ? there aren't any speed shops in your neighborhood ?  Out of curiosity, where in France are you ?
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Pierre
Gearhead Posts: 356
From: France
Registered: Apr 2002
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posted 09-30-2002 10:48 AM
quote:
Originally posted by 65darkhorse:
waddya mean ? there aren't any speed shops in your neighborhood ? Out of curiosity, where in France are you ?
30 miles west of Paris, there are about 8-10 american specialty shops around here but they only carry main stream stuff like : clutches, brake pads, filters, etc....but none of the nick-nacks that I am always looking for. Anyway, sorry Indyphil I am getting of-track here !
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indyphil
Gearhead Posts: 414
From: Lafayette, IN, USA
Registered: Jul 2002
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posted 09-30-2002 10:53 AM
KV,
thanks for the reply, what you are saying supports the manual. 10% really should not be a problem. the question is how do I know i only have 10%? is it illegal to use more than 10%? This is where a little knowledge becomes dangerous because un-informed people like myself start to make buying decisions based on rumour and opinion. I dont feel so bad about buying "gasohol" knowing that people have used it on carb engines without trouble, so thanks again I can sleep a little easier now!
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