Choosing routing options for my engine bay fuel hoses and primary elect pwr

[cc2Arider]

Hey Y'All,

I've been unable to choose which way to go for my MkIV engine bay fuel hose and primary electrical power routing. :rolleyes: I see pros/cons with each approach.

My goals:
1) try to have a "clean" firewall. I've already compromised that with a heater box and my location of the Accel pedal pivoting linkage
2) make the necessary things in the engine bay do more than 1 thing, if possible
3) keep the fuel lines/hoses reasonably away from electrical lines that might short to ground

I've arrived at 2 options since I already fixed the location of my fuel hard-lines:

Option1: fuel pressure regulator is located below the 150A circuit breaker 213315
Pros: any fuel dripping from leaks stays away from battery power wires
Cons: regulator adjuster might be difficult to adjust with engine installed; electrical power lines are longer and have to follow the heater hoses to look clean (back to the engine's alternator); need to drill new pass-thru hole in firewall for elect pwr wires

Option2: fuel pressure regulator in the "usual" location with 150A circuit breaker underneath 213316
Pros: fuel pressure regulator is located where many other builders have put it (seems to work well there); additional elect pwr pass-thru is not drilled in the firewall, but in the panel below; shorter electrical run (if that matters)
Cons: fuel leakage may drip onto live elect pwr wires; wires have to be routed along engine block and behind the headers (will need more heat shielding) to reach back to the alternator from the primary post for the starter

I'm gonna think on it some more, but your opinions/recommendations are welcome!

Thanks,
Craig C

[rich grsc]

OK, opinions,,,,
goal #3, not an issue, you have electric wires inside the fuel tank attached to the pump
The fuel lines would be better coming up at the real of the engine, regulator mounted as in picture #2
Alternator wiring attached to the frame going back to the starter, then up over the bell housing like in #2, make a mounting plate for the circuit breaker. If you don't have the forward dash, an option is run all the wiring along the top of the foot box and bring it around the far end of the dash on the passenger side

[Blitzboy54]

The other option on the regulator is to put it back by the tank, run a short return there and then run a single fuel line through the car to the engine. This is what I would do on any future builds.

[cc2Arider]

Thanks Rich & Jesse :)

I'll have to admit, I might be overthinking goal #3 but I figure if the lines leak near the regulator, they might make an aeresol under pressure and and a dead short at the main power might vaporize the wiring there...

Off-topic: In College, I took a High Power Electrical Lab, and one inattentive moment by a Classmate vaporized a solid copper bar in the guy's hand -- he was lucky...no harm. The Teaching Assistant, however, had a lot of " 'splainin' to do" :p

Craig C