 Eleveation change |
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| pacman |
 Aug 2 2016, 12:20 AM
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#1
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Newbie  Group: Members Posts: 29 Joined: 5-March 16 From: Bend Member No.: 19,732 Region Association: Pacific Northwest  |
Alright guys im a newbie 19 year old that doesnt know much termanology but figured I can maybe ask the pros. I want my 73 1.7 litre (switched to carbs) and drove it from Portland elevation 50' to Bend which is 3,600'. Many people say many things but the most common one is to rejet the carburetors with bigger jets. Is this something a novice kid can do on his own? The car does seem to be running a little lean. Any insights and advice are appreciated!
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| zambezi |
Aug 2 2016, 07:16 PM
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#2
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Senior Member Group: Members Posts: 711 Joined: 14-April 08 From: Lafayette, LA Member No.: 8,920 Region Association: South East States |
In theory it should be acting just the opposite. At higher elevation there is less oxygen available to the given supply of fuel, hence will run richer. At sea level there would be more oxygen allowing a leaner mixture.
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| Mike Bellis |
Aug 4 2016, 07:06 PM
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#3
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Resident Electrician Group: Members Posts: 8,348 Joined: 22-June 09 From: Midlothian TX Member No.: 10,496 Region Association: None 
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QUOTE(zambezi @ Aug 2 2016, 06:16 PM)  In theory it should be acting just the opposite. At higher elevation there is less oxygen available to the given supply of fuel, hence will run richer. At sea level there would be more oxygen allowing a leaner mixture. (IMG:style_emoticons/default/agree.gif) It should be running richer and require smaller jets at altitude. Once you tune to elevation, do not drive back to sea level or you will be dangerously lean. |
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