Am I Over Carbed?, Dual Weber 40 IDFs on 1.7 |
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Am I Over Carbed?, Dual Weber 40 IDFs on 1.7 |
7TPorsh |
Aug 25 2014, 10:52 AM
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#1
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7T Porsh Group: Members Posts: 2,691 Joined: 27-March 06 From: Glendale Ca Member No.: 5,782 Region Association: Southern California |
I have been trying to drive my car comfortably but I am running across issues. Mainly after the car warms up it starts acting weird.
Coming to a stop and revs dropping. it just dies. Then I have to wait a minute or two to get started again. Then it runs a little rough, pops, backfires. Just did the valves, points, timing but runs like crap when hot. The engine is a 1.7 block with 1.7 heads and dual 40s. I don;t know if there was any work done internally but the block is a 71 and car is a 70. It has been suggested that I am way overcarbed and running rich. i have no plans of building out this motor to match the carburation. Am I better off selling off this dual weber set and putting on a single Weber 32/36? I have my eye on this: http://www.ebay.com/itm/310953732343?ssPag...984.m1423.l2649 I am thinking the weber and hex setup should be worth around $450? What say you? |
ThePaintedMan |
Aug 28 2014, 10:38 AM
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#2
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Advanced Member Group: Members Posts: 3,886 Joined: 6-September 11 From: St. Petersburg, FL Member No.: 13,527 Region Association: South East States |
Gary,
Kevin and Stu have given you great tools to point you in the right direction. It's completely understandable to be frustrated with carbs - we've all been there. But keep in mind, this is a very simple system and can be fixed, but only with the proper understanding/knowledge. Part of that knowledge can be easily gained through the Tomlinson book. It's $20 that is well spent and you can always resell if it you don't use it again (which I highly doubt). The rest is basically effort on your part. We're here to help. You need to get the jet sizes by pulling at minimum, one main jet and one idle jet. Otherwise we're just wandering around in the dark. The 28 mm venturis are a decent match, so the hard part is done. |
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