My Dellorto Jet Combination |
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My Dellorto Jet Combination |
Ansbacher |
Jun 19 2017, 10:00 AM
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#1
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Senior Member Group: Members Posts: 689 Joined: 4-July 14 From: Tampa Bay, Florida Member No.: 17,589 |
I know every carb/engine combo is different, but for those of you with dual Dellorto DRLA 40s I thought I'd share a jet combo that finally performs very well on my '74 2.0 Liter. Note, I am basically at sea level here in the Tampa Bay area:
60 Idles 150 Mains 180 Airs 40 Pumps Emulsion Tube .2 32 Vents Pump Adjustment Nut almost all the way in. Maybe this will help someone with a starting point. Took me a couple of years to finally get this right. Ansbacher |
MarkV |
Jun 19 2017, 02:26 PM
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#2
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Fear the Jack Stands Group: Members Posts: 1,493 Joined: 15-January 03 From: Sunny Tucson, AZ Member No.: 154 Region Association: None |
I have not checked the AFR...I suspect it is a little on the rich side. Before I put classic car insurance on it I had to pass emissions and it was always difficult to get the HC number low enough to pass. I am going by the plug and tail pipe color...both of which look good. The cylinder head temperature seems to stay around 275 in town. I frequent a mountain road that goes from about 3000 ft to about 8500 ft. and if I am pushing it in the summer the temperature can get to 350 degrees. Gas mileage is not great...maybe 20 MPG. The car runs well and doesn't really have any drive ability issues. There was an off the line stumble that took me a long time to figure out that turned out to be the ignition timing curve and not carb related.
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