 I hate my Carbs Much Less, Chris Foley is a God! |
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| Mblizzard |
 Oct 30 2013, 12:13 PM
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#1
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Advanced Member  Group: Members Posts: 3,033 Joined: 28-January 13 From: Knoxville Tn Member No.: 15,438 Region Association: South East States  |
Well after much playing and changing I have to say I hate my carbs. I have done every jet size and I can't really get it to run well on anything but 70 idle jets and that is way to rich. With 60s it runs not quite as rich but the hesitation on the initial throttle is huge.
Have played with the adjustments and I think I have it running well but it never performs well. 2056 just built, 44 IDFs, 60 idle jets, 28 vents, 135 mains, F-11 emulsion tubs, 175 air correction jets. Timing at 27 to 30. SVDA Dizzy with electronic ignition. Valves recent set and rechecked. Synced at idle and 1500 rpm. Runs well at higher rev and pulls strong but I can't get rid of that hesitation. I know there will always be some but at times from a dead stop it almost stalls. What am I missing? (IMG:style_emoticons/default/headbang.gif) (IMG:style_emoticons/default/headbang.gif) Gone through all of the Weber tech trouble shooting steps and I can't find anything that says I have something wrong. Is there an adjustment on the accelerator pump? Or do I need to up the accelerator jet? I will be going back to FI at some point but these carbs should work better than they do. Taking it to Eurohaus tomorrow maybe they will have better luck. Suggestions? |
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Posts in this topic
Mblizzard I hate my Carbs Much Less Oct 30 2013, 12:13 PM
rhodyguy did you ever try backing one of the throttle stop ... Oct 30 2013, 12:17 PM DBCooper You say "hesitation on the initial throttle i... Oct 30 2013, 12:42 PM rhodyguy the carbs in the kit don't have a pump arm adj... Oct 30 2013, 12:54 PM 7275914911 I want to say too much Carb for a 2056(does it hav... Oct 30 2013, 01:00 PM rhodyguy iirc his venturies have been sized to 32s. Oct 30 2013, 01:03 PM Cap'n Krusty Before we go any farther, what distributor are you... Oct 30 2013, 01:16 PM DBCooper Said it's a SVDA and 28 venturis on a 2056, bu... Oct 30 2013, 01:30 PM Cap'n Krusty Well, that's what I get for not reading the or... Oct 30 2013, 01:59 PM DBCooper Cap'n, he said he'd tried timing between 2... Oct 30 2013, 02:27 PM
Cap'n Krusty
Cap'n, he said he'd tried timing between ... Oct 30 2013, 05:56 PM Mblizzard
Cap'n, he said he'd tried timing between... Oct 30 2013, 06:26 PM Mblizzard Ok running through the list!
Stock FI cam.
F... Oct 30 2013, 03:28 PM r_towle I cant believe 60 idle jets on 44mm carbs would no... Oct 30 2013, 03:29 PM Mblizzard
I cant believe 60 idle jets on 44mm carbs would n... Oct 30 2013, 03:36 PM Jetsetsurfshop Did you check the linkage. Working on my car today... Oct 30 2013, 05:11 PM r_towle Stock FI camshaft, jets to large, and throttle pla... Oct 30 2013, 05:14 PM r_towle Did you port match the bottom of the carb to the m... Oct 30 2013, 05:25 PM WLD419 I'm guessing you balanced the carbs with a uni... Oct 30 2013, 05:41 PM 914_teener :agree:
Yup......stock camshaft. Oct 30 2013, 05:43 PM struckn
:agree:
Yup......stock camshaft.
:agree: T... Oct 30 2013, 07:56 PM ThePaintedMan Lots of good info here Mike.
Rechecking the advan... Oct 30 2013, 06:44 PM r_towle I would strongly suggest a wide band o2 sensor and... Oct 30 2013, 07:02 PM Jetsetsurfshop
I would strongly suggest a wide band o2 sensor an... Oct 30 2013, 07:13 PM Mblizzard OK so George wins! Rechecked everything and s... Oct 30 2013, 07:39 PM ThePaintedMan Thanks for the props Mike, but it was really Rich,... Oct 31 2013, 07:29 AM DBCooper Yeah, I don't think it's the barrel size, ... Oct 31 2013, 11:48 AM r_towle
Yeah, I don't think it's the barrel size,... Oct 31 2013, 12:02 PM rhodyguy my first suspect is still the linkage. as for the ... Oct 31 2013, 11:56 AM Mark Henry
my first suspect is still the linkage.
:agree:... Nov 1 2013, 08:35 AM Eric_Shea Now recheck your idle jets.
"All" of t... Nov 1 2013, 07:33 AM stugray
Oohhh! I am guessing that you wouldnt be in ... Nov 1 2013, 08:24 AM Mblizzard I will agree that linkage is always the first susp... Nov 1 2013, 08:44 AM rhodyguy that's why i ask folks to back off one of the ... Nov 1 2013, 08:47 AM ThePaintedMan
that's why i ask folks to back off one of the... Nov 1 2013, 09:36 AM Eric_Shea
Engine size and # of cylinders.
Peak HP the cam... Nov 1 2013, 09:59 AM Eric_Shea I just happen to know all of Mike's info becau... Nov 1 2013, 10:18 AM Mblizzard Eric - if I still have problems I will try your se... Nov 1 2013, 11:02 AM Eric_Shea Sounds like a cool setup on the venturi's.
... Nov 1 2013, 11:15 AM rhodyguy hence the recommendation of 32mm on my 44s, for a ... Nov 1 2013, 11:25 AM Mblizzard Eric running lean at highway speeds was exactly wh... Nov 1 2013, 11:47 AM rhodyguy expert guesser. :D Nov 1 2013, 12:02 PM Eric_Shea Cool. If you go with the 155's you may want t... Nov 1 2013, 12:16 PM rhodyguy i'll go pull the jets from the 44s. we'll ... Nov 1 2013, 12:21 PM DBCooper Is this weird or what? Get a spreadsheet involved... Nov 1 2013, 12:53 PM Eric_Shea :o I'm not the one driving a Volvo! (Ooo... Nov 1 2013, 01:06 PM DBCooper
:o I'm not the one driving a Volvo! (Oo... Nov 1 2013, 01:13 PM Eric_Shea Ummm, I think you're right (not about the Vulv... Nov 1 2013, 01:35 PM DBCooper
Ummm, I think you're right (not about the Vul... Nov 1 2013, 02:03 PM Eric_Shea
Ummm, I think you're right (not about the Vu... Nov 1 2013, 03:08 PM r_towle got rid of the last Swedish car a few years back..... Nov 1 2013, 02:29 PM Mblizzard Ok so I switched to the new 32mm 3d printed vents ... Nov 3 2013, 04:48 PM ThePaintedMan I personally like the Tangering Racing cable setup... Nov 3 2013, 11:11 PM DBCooper Wait a minute, first things first. Your last comm... Nov 4 2013, 06:48 AM Mblizzard
Wait a minute, first things first. Your last com... Nov 4 2013, 07:33 AM DBCooper But when I have both carbs balanced at idle, at 15... Nov 4 2013, 08:23 AM rhodyguy pass side idle speed adj screw off the stop? Nov 4 2013, 07:46 AM 7275914911 The CSP Bellcrank is very easy to adjust/stay adju... Nov 4 2013, 07:58 AM rhodyguy and if the xbar is one of the spring loaded (the o... Nov 4 2013, 08:49 AM Mblizzard Of course mine is one with the springs at the end... Nov 4 2013, 09:21 AM rhodyguy yes, the idle speed adj screw on the pass side. ta... Nov 4 2013, 09:47 AM DBCooper And just in case you missed it:
yes, the idle sp... Nov 4 2013, 10:36 AM Eric_Shea
:agree:
Have a friend watch the throttle plates... Nov 4 2013, 10:02 AM 72hardtop No ones made mention of this but I've seen it ... Nov 11 2013, 01:18 PM Mblizzard
No ones made mention of this but I've seen it... Nov 11 2013, 01:22 PM Mblizzard Well I finished the install of Chris Foley's/ ... Nov 16 2013, 11:49 AM  |
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