FPR Routing
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Joined: Dec 2020
Posts: 93
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FPR Routing
I’ve ordered a fast 92 intake and fore innovations fuel rail but I’m curious as to which way I should run this thing.
I’ve got a 98 with a return line, so my thought was to run an aftermarket FPR but it seems weird to me to run that post rails as it seems backwards.
why does it matter psi after the rail? What should return line pressure be?
Any advice on routing and rail fittings design?
I’ve got a 98 with a return line, so my thought was to run an aftermarket FPR but it seems weird to me to run that post rails as it seems backwards.
why does it matter psi after the rail? What should return line pressure be?
Any advice on routing and rail fittings design?
Race Director
Joined: Oct 2004
Posts: 12,861
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I’ve ordered a fast 92 intake and fore innovations fuel rail but I’m curious as to which way I should run this thing.
I’ve got a 98 with a return line, so my thought was to run an aftermarket FPR but it seems weird to me to run that post rails as it seems backwards.
why does it matter psi after the rail? What should return line pressure be?
Any advice on routing and rail fittings design?
I’ve got a 98 with a return line, so my thought was to run an aftermarket FPR but it seems weird to me to run that post rails as it seems backwards.
why does it matter psi after the rail? What should return line pressure be?
Any advice on routing and rail fittings design?
Thread Starter
Advanced
Joined: Dec 2020
Posts: 93
Likes: 4
I'm not disagreeing with you, but it seems that is not the norm. It seems that the regulator is on the return side. I also think the OEM regulator built into the rail is on the return side too.
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2020 Corvette of the Year Finalist (performance mods)
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if you put the fpr at the end of whichever rail is the end of fuel flow then the pressure drop across the injectors will be equal... technically that's the best way to do it but I think you would be fine putting it wherever you want... I wanted mine hidden out of sight, I have it under the brake booster before my rails and I haven't had any issue whatsoever
Race Director
Joined: Oct 2004
Posts: 12,861
Likes: 4,663
I’ve ordered a fast 92 intake and fore innovations fuel rail but I’m curious as to which way I should run this thing.
I’ve got a 98 with a return line, so my thought was to run an aftermarket FPR but it seems weird to me to run that post rails as it seems backwards.
why does it matter psi after the rail? What should return line pressure be?
Any advice on routing and rail fittings design?
I’ve got a 98 with a return line, so my thought was to run an aftermarket FPR but it seems weird to me to run that post rails as it seems backwards.
why does it matter psi after the rail? What should return line pressure be?
Any advice on routing and rail fittings design?
