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02-03-2016, 06:39 AM | #1 |
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Edelbrock Slingshot intake qun
Just curious guys, is this intake a single plane intake?
And if it is, can it be run with one carb blocked off ? Of course it will run, but how efficient will the cyl to cyl distribution be and of course will there boe more vaccum/throttle response with the one carb only? Also, will there be any issues with the intake "heat" the 97 receives with this intake? The other carb can be blocked for aesthetics on this fairly stock 21 stud thats in the car till I build a stroker, or at least thats the plan. Just looking to get the 2x2 look I want from this engine/combo till the new engine gets done. Any thoughts would be much appreciated BFD |
02-03-2016, 07:44 AM | #2 |
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Re: Edelbrock Slingshot intake qun
I can't say that I've ever seen anybody block one off . . . so I'm not speaking from experience. But - I've seen a lot of guys run them on otherwise stock engines and be very happy with them.
I don't think you'd have any problem actually just running the dual carbs. The engine may not need all the fuel, but then again you'll not be mashing the throttle and dumping a ton of gas down it. You may want to jet the carbs a bit smaller (check your plugs), but I think you'll be just fine. There are heat risers in the manifold, but they don't go all the way up to the carbs - but you should be fine as long as you don't plug them off on the block. If you really want/need heat on the carb bases, then you'll have to find an early Eddie Meyer (water heated) or go to something like the Navarro dual-carb universal with the 'dog bone' heater (though is has the regular wide spacing - so no generator in front). Good luck! |
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02-03-2016, 08:28 AM | #3 |
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Re: Edelbrock Slingshot intake qun
Hehe I knew you'd jump in Dale good info for sure.
I have run it as a 2x2 but after dialling it in as best as possible this way I feel it still kills airspeed in the intake and thus throtle response. I feel the Slingshot is more a hi rpm intake and maybe not well suited to a small cube, mild FH? Perhaps a dual plane intake would be better suited but I really want to run the Slingshot on my pre WWII roadster for obvious reasons so was curious to see if anyone had done this. |
02-03-2016, 08:38 AM | #4 |
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Re: Edelbrock Slingshot intake qun
The slingshot is dual plane I believe. This manifold usually has (reportedly) great throttle response, the long runners are great for low rpm torque. See Jwl's book. There are other dyno reports out there, hotrod magazine did a test "intake manifold smackdown" or similar. You may have to shorten the advance for full benefits, again based on JWL's testing with a pm7, the book should have all your answers with the jetting and such.
Martin. |
02-03-2016, 08:49 AM | #5 | |
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Re: Edelbrock Slingshot intake qun
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02-03-2016, 01:32 PM | #6 |
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Re: Edelbrock Slingshot intake qun
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02-03-2016, 02:11 PM | #7 |
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Re: Edelbrock Slingshot intake qun
I had a 1934 221 with a SU-1A cam and a thickstun PM-7 intake with 81's on it, and it ran great! That cam in the small cube engine made it sound nastier then it was!
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02-05-2016, 12:03 AM | #8 |
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Re: Edelbrock Slingshot intake qun
I run a slingshot on my stock 34 engine. I have a shim under the front carb, and the fuel line to it plugged. The carb linkage is normal, connected to both carbs.
Slingshot intakes seem to be a little slow to warm up on start, but after warm up runs well with good throttle response. Since either carb flow is directed to the center of the manifold, the cylinders recieve an equal balanced mixture when only one carb is functional. I'm pleased with how it performs on my engine. |
02-05-2016, 01:21 AM | #9 |
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Re: Edelbrock Slingshot intake qun
Then you can sell it on to me BFD when you don't need it when you get the new engine sorted..?!
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02-07-2016, 09:24 AM | #10 |
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Re: Edelbrock Slingshot intake qun
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