Billet fuel rail xover what size -6 or -8?? Turbo car
04-23-2014, 07:49 AM
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Billet fuel rail xover what size -6 or -8?? Turbo car Sorry admins if this is in the wrong place but this is mainly a question about what line size to use because of the importance of being forced induction.
OK guys, I received my billet fuel rail the other day. I will be running a aeromotive regulator on a return style setup. -8 feed to one rail, xover to the other rail, out the rail into the regulator and out the regulator -6 to the tank. My kit has -6 for the xover but should I use -8? Logic tells me -6 will likely feed enough to the last rail but I also think it could "bottleneck"
Any advice or comments are invited. Thanks
OK guys, I received my billet fuel rail the other day. I will be running a aeromotive regulator on a return style setup. -8 feed to one rail, xover to the other rail, out the rail into the regulator and out the regulator -6 to the tank. My kit has -6 for the xover but should I use -8? Logic tells me -6 will likely feed enough to the last rail but I also think it could "bottleneck"
Any advice or comments are invited. Thanks
04-23-2014, 06:22 PM
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Feed both rails with a -8. If you monitor AFR per cylinder you will see a lean spike on the opposite bank only feeding 1 side and crossing over. We have seen this on the engine dyno with only 650hp.
