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| twin two barrel setup https://slantsix.org/forum/viewtopic.php?t=16658 |
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| Author: | grthigpen [ Mon Mar 20, 2006 6:27 pm ] |
| Post subject: | twin two barrel setup |
has anyone ever seen such an animal? want to run pair of weber DGV's on mine. GRT |
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| Author: | argentina-slantsixer [ Mon Mar 20, 2006 8:29 pm ] |
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I've seen a couple of twin 2bbl on a slant setups. That's fairly most likely to find out down here, where 4 bbls are scarce and kinda "unexplored territory". I've seen 2 staged 2 barrels, 2 wegular webers, 2 350 2300 holleys, etc (depending on the cam choice and transmission choice) I'm preparing for myself a twni staged 2 barrels solex carbs on a dual manifold. I'll be using small primaries bigger secondaries staged carbs. I think that if carefully planned and executed, that setup can bring more economy then a regular big 2 barrel, with better throttle response and better efficiency when it comes to pressure drops, yet not loosing any power on the high band, (actually I think that it can improves both ends since almost about the same amount of air will be going in but trhu more openings, wich according to physics laws is more desirable) |
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| Author: | Doctor Dodge [ Mon Mar 20, 2006 8:46 pm ] |
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| Author: | argentina-slantsixer [ Tue Mar 21, 2006 12:09 am ] |
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one image is worth more than a million words   doc is that your stroker 250 /6? |
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| Author: | grthigpen [ Tue Mar 21, 2006 4:23 am ] |
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nw if i con only find one of those intakes GRT |
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| Author: | Patrick Devlin [ Tue Mar 21, 2006 5:00 am ] |
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Quote: nw if i con only find one of those intakes GRT
Summit Racing has them, but they are only machined for dual 1 bbl. carbs.http://www.summitracing.com Search "slant offenhauser" to find the manifold. For a picture of this intake, see: http://www.offyparts.com/product_info.p ... 4ee792582f |
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| Author: | SlantSixDan [ Tue Mar 21, 2006 6:31 am ] |
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Quote: they are only machined for dual 1 bbl. carbs.
True, but they have nice large carb mounting pads plenty big enough to be remachined for 2bbls.
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| Author: | Doctor Dodge [ Tue Mar 21, 2006 7:06 am ] |
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Quote: ...Doc is that your stroker 250 /6? DD http://www.dutra.org/doug/dougs-darts/gconvert.jpg |
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| Author: | R/T Magnum [ Tue Mar 21, 2006 7:17 am ] |
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That twin carb /6 looks awesome. I imagine it runs strong also. |
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| Author: | grthigpen [ Tue Mar 21, 2006 5:32 pm ] |
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so is it a true casted manifold for 2 two barrels or is it an Offy with the mounting pads modified?? also what carbs are you running?? thanks GRT |
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| Author: | Doc [ Wed Mar 22, 2006 9:44 pm ] |
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It is a modified Offy manifold with the Weber DVGs DD |
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| Author: | SwingLo73 [ Thu Mar 23, 2006 7:35 pm ] |
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Wow, I hope I lose my auction now, I want one of those. Let me ask you a question, if you run standard 1920's on it, does it come with a throttle setup/kickdown linkage, or do you have to fab something? Do you need special air cleaners or will two regular cleaners fit (on the intake and under the hood)? I love how clean and tidy it looks under the hood. |
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| Author: | SlantSixDan [ Thu Mar 23, 2006 8:25 pm ] |
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Quote: Wow, I hope I lose my auction now, I want one of those. Let me ask you a question, if you run standard 1920's on it, does it come with a throttle setup/kickdown linkage, or do you have to fab something?
See this thread. The Offy intake is #5041, and it ships with linkage kit 5041K, which contains some of the parts you need to make it work with the '60-'66 rotating-rod style throttle setup. There is no prefab kit to make it work with the cable-type setup. If you run Holley 1920s, you can use the slick trick of making a new choke shaft that runs through both carburetors, out of an old SL6 pushrod. Makes automatic choke adaptation easier.Quote: Do you need special air cleaners or will two regular cleaners fit (on the intake and under the hood)?
Two '63-'67 "small and tall" standard-equipment air cleaners will fit and clear one another. They will clear the hood on most '63-up cars. They will have trouble clearing the hood on a 225 engine in a '60-'62 A-body (OK on a 170); you can use shorter filter elements to help gain clearance here.Keep in mind that any multiple-carb setup, even one that comes with a ready-made linkage kit, poses special (read: large) challenges in setup and tuning. When you add in the necessity of fabricating your own throttle and kickdown linkage, the complexity goes way up. Don't know what auction you're hoping you lose, but if it's for a 2bbl setup, and you're new to this, then you should be hoping you win it. |
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| Author: | SwingLo73 [ Fri Mar 24, 2006 8:28 am ] |
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You're probably right, I'll have to file that one in my "someday it'd be nice" folder. That's why I wanted to know how much fab work is involved, probably would turn into a big moneymaker for my mechanic. |
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| Author: | 64DartChris [ Fri Mar 03, 2023 7:09 pm ] |
| Post subject: | Re: twin two barrel setup |
Hi Slant 6 Dan. Do you have the instructions to use a pushrod to hook up both chokes? I’m going to install a Offenhauser intake with 2 Holley 1920’s. Thank you. |
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