Fuel line placement
Thread Starter
Racer
Joined: Jul 2018
Posts: 403
Likes: 44
From: Burnsville, mn
So can I get rid of both of these factory fuel lines running forward if I'm install the Fore system? In how about the evap? line running forward? Right now is obviously the easy time to get rid of things that are not going to be needed... Is there any reason for me to keep it the evaporative purge valve and vent valve stuff? This is a Turbo car going with Proefi piggy back to the factory PCM.
Last edited by Summerkruse13; Nov 29, 2018 at 09:03 PM.
Team Owner
Joined: Nov 2007
Posts: 24,035
Likes: 2,342
From: Gilbert AZ
Yes you can get rid of the factory feed if you want. I pulled mine yesterday just to clean it up. As for evap, I'm not 100% sure. Without it you will probably get check gas cap, and various warning, which I think may come from the BCM, not the main ECU, so not sure if the proefi would fix that. If it does, I would pull them too. I'm not sure, so I'm going to leave it there. Would be nice to know if those warnings are from the main ecu or bcu.
Pro
Joined: Oct 2013
Posts: 706
Likes: 337
From: Northwood NH
So can I get rid of both of these factory fuel lines running forward if I'm install the Fore system? In how about the evap? line running forward? Right now is obviously the easy time to get rid of things that are not going to be needed... Is there any reason for me to keep it the evaporative purge valve and vent valve stuff? This is a Turbo car going with Proefi piggy back to the factory PCM.
Pro
Joined: Oct 2013
Posts: 706
Likes: 337
From: Northwood NH
You are still going to want the Fore FC3 to power the pumps. The ProEFI outputs are only strong enough to trigger the relays.
Racer
Joined: Oct 2012
Posts: 348
Likes: 28
From: Houston TX
I removed the evap on mine as well. It's just venting straight out of the charcoal canister. The garage doesmt smell like gas yet so I think it's fine. I havent finished and gotten it running yet though.
Thread Starter
Racer
Joined: Jul 2018
Posts: 403
Likes: 44
From: Burnsville, mn
I was kind of thinking of that or possibly just triggering separately relays altogether... From what I can tell it might be simpler just to get some factory OEM fuel pump relays and use those to turn the fuel pumps on triggered by the proefi
Thread Starter
Racer
Joined: Jul 2018
Posts: 403
Likes: 44
From: Burnsville, mn
I completely removed the evap system with ProEFI piggybacked, no issues... I clamped an AN line to the open evap port on the pass tank and plumbed a fuel tank roll over valve (clamped the valve near the tank). I dont street drive it, so I cant tell you if it would smell of gas. Assuming you will be venting the valve covers as well.
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Racer
Joined: Oct 2012
Posts: 348
Likes: 28
From: Houston TX
What size is your return line? the flex fuel sensor should be 3/8" which is about -6. It should be fine to neck your return through it but I didn't see exactly what your setup is and if you have a really crazy setup you might want to put two "Y" fittings in and run the flex sensor with a second parallel line in with it so you dont bottle neck too badly. Most people dont need this though.
Thread Starter
Racer
Joined: Jul 2018
Posts: 403
Likes: 44
From: Burnsville, mn