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| Fuel line size? https://slantsix.org/forum/viewtopic.php?t=62651 |
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| Author: | BKBoan [ Sun Jul 29, 2018 11:10 am ] |
| Post subject: | Fuel line size? |
What size fuel line to run for a modified Slant six with a 400 CFM carburetor? standard was 5/16 do I need to upgrade to 3/8? Thanks. Brian |
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| Author: | wjajr [ Mon Jul 30, 2018 6:07 am ] |
| Post subject: | Re: Fuel line size? |
I run 5/16" with Holley 390, 225 engine spins up to 6000+ rpm (before rebuild this year) and runs out of carb before fuel. Now if you are racing circle track or some other activity requiring constant very high rpm, perhaps 3/8" may be required. |
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| Author: | BKBoan [ Mon Jul 30, 2018 3:56 pm ] |
| Post subject: | Re: Fuel line size? |
Thanks supercharged! No racing just wanted to make sure I don't run out of fuel when I play hard! |
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| Author: | Greg Ondayko [ Mon Jul 30, 2018 6:42 pm ] |
| Post subject: | Re: Fuel line size? |
Stock 5/16" line supports 11 second race engine. It will be fine for all but the wildest blown and turboed alchohol engines. Greg |
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| Author: | kesteb [ Mon Jul 30, 2018 8:39 pm ] |
| Post subject: | Re: Fuel line size? |
On the other hand a stock replacement fuel pump and 5/16 fuel line was unable to keep the fuel bowls full on a low 17 second 225. So your results will depend your setup. And the only way to know it to try it and see. |
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