09-22-2009, 12:41 PM
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Senior Club Cobra Member
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Join Date: May 2007
Location: San Clemente,
CA
Cobra Make, Engine: CSX 4758, CSX 381 Keith Craft 482 w/ Weber 48 IDA's
Posts: 492
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Not Ranked
Quote:
Originally Posted by RedBarchetta
Curious how much of that fuel becomes cylinder wash? That just seems to be an insane amount of fuel that is getting through an engine that is not at WOT most of the time. How often do you Weber guys change your oil?!? 
-Dean |
Dean,
Is that you thinking about Webers???!!! Doug and I were discussing this over the weekend.....you need to pull the trigger man. Your cam is fine....my cam is lot more radical and it idles and ramps up the rpm spectrum fine, thank you very much.
RE: fuel economy. I averaged about 10.5 mpg on the freeway with the Holley (toploader with 3:31 rear). I now average 10 on the freeway with the Webers, and I think they're still a little rich. Some fuel does indeed wash down into the cylinders after a hot run, but it's not much. Most of it spills onto the intake where the throttle body gaskets are. In any event it's not much.
I change the oil every 1500 mi or so, and did that when I had the Holley on it as well. Every 1500 is when I notice the oil down a bit on the dipstick, so I simply change it. Have the lift so it's a 20 min job. Go Webers!!! Call me if you want to talk about them.
Tom
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