 Need a carb guru, West LA/Southbay?? |
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| KaptKaos |
 Jul 10 2012, 08:37 AM
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#1
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Family  Group: Members Posts: 4,009 Joined: 23-April 03 From: Near Wausau Member No.: 607 Region Association: Upper MidWest  |
I am getting to the end of my rope with these carbs, and may have finally come to the realization that I need some help in getting this car to run better.
Anyone have a recommendation for a carb tuner on the west side/southbay area of Los Angeles? Engine is a 1.7 with a carb cam (unknown specs, but not stock), with 40 idfs and a SVDA dizzy. Exhaust is stock with a sebring muffler. At wide open throttle, she pulls really well; part throttle and tip in is bad. I would like to drive the car sometime this summer, but at this pace, it will be next year before I can get it sorted. Thanks in advance. |
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| Steve |
Jul 10 2012, 08:45 AM
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#2
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914 Guru Group: Members Posts: 5,587 Joined: 14-June 03 From: Orange County, CA Member No.: 822 Region Association: Southern California 
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QUOTE(KaptKaos @ Jul 10 2012, 07:37 AM)  I am getting to the end of my rope with these carbs, and may have finally come to the realization that I need some help in getting this car to run better. Anyone have a recommendation for a carb tuner on the west side/southbay area of Los Angeles? Engine is a 1.7 with a carb cam (unknown specs, but not stock), with 40 idfs and a SVDA dizzy. Exhaust is stock with a sebring muffler. At wide open throttle, she pulls really well; part throttle and tip in is bad. I would like to drive the car sometime this summer, but at this pace, it will be next year before I can get it sorted. Thanks in advance. Ottos in Venice. He knows 914's and is very good with carbs. |
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| monkeyboy |
Jul 10 2012, 09:21 AM
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Senior Member Group: Members Posts: 808 Joined: 8-June 08 From: Los Angeles, Ca Member No.: 9,147 Region Association: None |
I would recommend an air\fuel meter as well. It helps to watch and see if you are rich or lean at any time. Takes the guesswork out.
40's are a bit big for a 1.7. They are going to take some tuning. |
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| SLITS |
Jul 10 2012, 10:45 AM
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#4
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"This Utah shit is HARSH!" Group: Benefactors Posts: 13,602 Joined: 22-February 04 From: SoCal Mountains ... Member No.: 1,696 Region Association: None  |
Joe, you might want to check the venturi size. More than likely they are 32 mm. Going to a 28 mm would give you more "signal" at low and mid range RPM but would restrict the upper end flow.
I don't know anything about carbs so ignore this post. |
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| KaptKaos |
Jul 10 2012, 01:58 PM
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#5
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Family Group: Members Posts: 4,009 Joined: 23-April 03 From: Near Wausau Member No.: 607 Region Association: Upper MidWest |
QUOTE(SLITS @ Jul 10 2012, 09:45 AM) Joe, you might want to check the venturi size. More than likely they are 32 mm. Going to a 28 mm would give you more "signal" at low and mid range RPM but would restrict the upper end flow. I don't know anything about carbs so ignore this post. Especially these carbs! (IMG:style_emoticons/default/happy11.gif) Anyways, I believe that they are 28 vents. I have it written down at home. I will, of course, double check that too. |
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| KaptKaos |
Jul 10 2012, 01:59 PM
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Family Group: Members Posts: 4,009 Joined: 23-April 03 From: Near Wausau Member No.: 607 Region Association: Upper MidWest |
QUOTE(Steve @ Jul 10 2012, 07:45 AM) Ottos in Venice. He knows 914's and is very good with carbs. I know he does. I was thinking he's the last of last resorts, as it will likely cost me a bunch. |
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| yeahmag |
Jul 10 2012, 04:05 PM
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#7
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Advanced Member Group: Members Posts: 2,421 Joined: 18-April 05 From: Pasadena, CA Member No.: 3,946 Region Association: Southern California
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Don't know IDF's anymore - always been a Dellorto guy, but I'd be happy to try and help. Couple of questions:
* What distributor are you using? * Initial and full timing? * Idle jet size? * How many turns out on the idle volume screw? * Fuel pressure? -Aaron |
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| Borderline |
Jul 10 2012, 06:18 PM
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#8
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Senior Member Group: Members Posts: 720 Joined: 8-February 05 From: San Juan Bautista, CA Member No.: 3,577 Region Association: Northern California |
I have found that balancing the carbs is about the most important thing you can do. I balance the flow (left/right) twice. the first time, as usual, at idle. The second time is to balance the linkage. I adjust the throttle cable to get the engine running at 1500 - 2000 rpm. Then I check the flow (left/right) again. I then adjust the linkage arms to balance the flow. So many people adjust the flow at idle with the linkage disconnected then re-connect the linkage and go. You spend about 90% of the time at partial throttle and it's very important to have the linkage adjusted properly. FWIW (IMG:style_emoticons/default/biggrin.gif)
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