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Where did you route the fuel lines, brake lines, e-brake cable, electrical wires, etc as you move them from the front of the car to the back of the car?

Under the car doesn't look promising. Inside of the tunnel? Inside of the passenger compartment? Inside of a protective tube or "naked" so you can inspect 'em?

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Geek49203 aka
Tim Wohlford
Louisville, KY
Hayes front, S10 +2 rear, Lalo body.

viewtopic.php?f=5&t=17811&p=209475&hilit=lines#p209475

Fluids below electrical; never on the bottom; better to route around the edge of a compartment than floating over the top of anything; through an open tube seems ideal but is not good because the line/hose can vibrate/rub/crack where it can't be seen, plus the tube is open to water and mud.

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Not the lowest point on the car (will get crushed eventually), but also, placed such that anything leaking from them ends up on the road and not in the passenger compartment.

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All through the tunnel - electrical highest, on one side, fuel & brake line on the other. All are tucked away from the driveshaft etc. Parking brake cables are at the very top, but only run through about 8" of tunnel before they exit by the differential.

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Just in the process of this now. I ran my fuel lines on one side of the bottom of the tunnel, brake lines down the other side. In the coming days I will be doing the electrical, and plan to run them along the top.

I ran fuel brake and electric on top of the tunnel and the parking brake at the bottom of the tunnel. I do have drive shaft hoops in place at the front and rear of the tunnel to contain the drive shaft.

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Build on

Chris
Build: NA Miata based +221 Se7en

I ran fuel line and battery cable through the transmission tunnel much like the original Miata. I made small insulated clamp bracket to secure the lines and wires. Note ,do not use self sticking fasteners as the heat in the tunnel will cause them to fail and creat a future diaster with the drive shaft.

@mistered
That's a nice solution and very nice work. Are you running the brake lines high or low?

Cheers,

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Damn! That front slip angle is way too large and the Ackerman is just a muddle.

Build Log: viewtopic.php?f=35&t=5886

Driveshaft loops are a good idea if running brake lines through the tunnel. Not on a Locost, but I've seen a shaft bend/fail due to overspeed and wipe out brake/fuel lines. A car at high rate of speed with no rear brakes and on fire is..... not ideal

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Build log: viewtopic.php?t=9291

Which is my concern about running fuel lines too. Which is why I asked.

Then again, the drive shaft is 100% professionally made, no "Tim learns to weld" here.

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Geek49203 aka
Tim Wohlford
Louisville, KY
Hayes front, S10 +2 rear, Lalo body.

Well the Locost simply cannot be driven at great speeds. Not with the aero characteristics. And the really short length of the driveshaft reduces the chance of bending at speed to the minimum.

I never lost much sleep over this subject. As a street driven car, the driveshaft speeds are very low, comparatively. Running a continuous steel fuel supply and return line reduces some risk IMO, as in no leaking joints to deal with. That said, a couple of driveshaft hoops cures a lot of sins. Running fuel and electrical side by side on the underside of cars has been done in a lot of production cars. I'm not saying that was the safest designs. just not uncommon practice.

One builder here ran a piece of conduit the length of the tunnel to run the electrical wires thru. I think that was a safe idea.

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Chuck.

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