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| Intake Manifold and Carb Questions... HELP HELP!!! https://slantsix.org/forum/viewtopic.php?t=12446 |
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| Author: | burninsix [ Wed Mar 30, 2005 9:24 pm ] |
| Post subject: | Intake Manifold and Carb Questions... HELP HELP!!! |
I have a offy intak manifold and on the plate where my carb mounts, it has four seperate holes. When I look at a bunch of pictures of the Clifford 4 bbl, there is just one big hole, should I cut out the center to make it one hole??? Also, the guy at my local parts store recommended that I mount my carb sideways, so I did that (My throttle linkage on the carb is closest to the firewall).. Is that right, or should I turn it 90 degrees?? Thanks for all of the advice, this site is awsome!!!! D.J. 67 Cuda Slant Six Powered |
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| Author: | Avenger2040 [ Thu Mar 31, 2005 8:54 am ] |
| Post subject: | Ok, As I Know... |
the only differience is for placing carb and gasket, I Think that Offenhauser manifold was design for Holley carbs, and for that is the holes are all equal, and manifolds that got a single hole are more "universal" for carburetors. You know some carbs got bigger barrels than others and that can be a problem with offy intake, check if current holes get in the way of your carb barrels, is that is the case, I suggest to make them bigger but not make a complete hole. For Carb mounting, I think they told you to put it in that way for comfort, when your car is 1 bbl, the throttle linkage is close to the firewall and when you got a Super Six car, throttle linkage is close to drivers whell and in that case it got a adapter to put linkage. That´s my opinion about this, but better wait for some more experienced people to give his call. |
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| Author: | slantzilla [ Thu Mar 31, 2005 8:59 am ] |
| Post subject: | |
Opening the plenum up will kill some low-end torque. I ran my Offy as is and it always worked very well, and had gobs more low-end than a Clifford. Carb mounting is the never ending battle. Look at 100 Slant cars and 50 will have it paralell and 50 will have it crossways. 
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| Author: | kesteb [ Thu Mar 31, 2005 2:19 pm ] |
| Post subject: | |
All factory (GM, Mercedes) L6s that I have seen have the secondaries facing the engine. Also all factory L6s used a spreadbore style of carburator. The DC \6 Racing Manuals have the primaries facing the engine and use Holley/Carter square bore carburators. Most people just have the primiaries facing the front of the car, as the throttle linkage is then easier to hookup. |
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| Author: | SlantSixDan [ Thu Mar 31, 2005 2:36 pm ] |
| Post subject: | |
Quote: All factory (GM, Mercedes) L6s that I have seen have the secondaries facing the engine. Also all factory L6s used a spreadbore style of carburator.
There were no spread-bore carburetors in '60 when the Hyper-Pak Slant-6 came out.
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| Author: | SlantSixDan [ Thu Mar 31, 2005 2:40 pm ] |
| Post subject: | |
Quote: Carb mounting is the never ending battle. Look at 100 Slant cars and 50 will have it paralell and 50 will have it crossways.
...No.50 will have it parallel and 49 will have it perpendicular. And one guy will have spent a fortune to custom-fab a manifold and linkage setup that mounts the carb on a 45° diagonal, and he'll be selling Kinko-bound books out of the trunk of his car, all about how Big Oil is trying to buy up and suppress his amazing Diago-Shazam carburetor mounting method, 'cause it makes even the dowdiest old 170 with 600,000 miles on it get 40mpg while hauling a '62 W250 pickup truck from 0 to 60 in 4.4 seconds. 
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| Author: | Avenger2040 [ Thu Mar 31, 2005 3:00 pm ] |
| Post subject: | Carburetor Setup. |
Well I got my QuadraJet and his primaries facing the engine, and big bad secondaries facing the whell of my side, but I have notice that Offenhauser manifold got all those barrel holes a little small, when I open my primaries, holes are too big, but when talking about secondaries, holes a small. Is that all right? |
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| Author: | kesteb [ Fri Apr 01, 2005 2:42 pm ] |
| Post subject: | |
Quote: Quote: All factory (GM, Mercedes) L6s that I have seen have the secondaries facing the engine. Also all factory L6s used a spreadbore style of carburator.
There were no spread-bore carburetors in '60 when the Hyper-Pak Slant-6 came out. |
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| Author: | SlantSixDan [ Fri Apr 01, 2005 2:48 pm ] |
| Post subject: | |
Alright, if that's true, then we'll just amend: There were no spread-bore carburetors from American makers, on American cars in '60. |
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| Author: | heckshemi [ Fri Apr 01, 2005 6:31 pm ] |
| Post subject: | |
I had a '68 firebird spint ohc with a quadrajet from the factory. |
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| Author: | kesteb [ Sat Apr 02, 2005 9:21 pm ] |
| Post subject: | |
Quote: Alright, if that's true, then we'll just amend: There were no spread-bore carburetors from American makers, on American cars in '60.
Picky, picky... Put the hyper-pak was a over the counter dealer installed option. So it really doesn't count...
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