Initial review of MSA weber 40 DCOE carb kit

[madkaw]

I'm jealous of how much room you have to install the intake bolts. The mikuni short manifold is a total bitch. On the other hand I wouldn't have room for my cold air intake with that long of an intake .

That is a beautiful set- up and inspires me to get mine done.

Waiting on the UPS man!!!!!!

[dhoneycutt]

Zedyone...I really like how you set that up. I for one would like to hear more details on the fuel rail!!! That looks sweeeeeeet!

[Zedyone_kenobi]

Well here is an update on the install.

I laid on the ground for about an hour last night with the electric fuel pump in one hand and the pump pre-filter in the other. I pondered how to get them in there safely and smartly so that the hoses are not too kinked, and it was as OEM as I could make it. I finally found away to route the darn fuel lines without disturbing any of the factory fittings, clamps, or hard lines. I am very pleased how this turned out.

Next I turned my attention to the electrical side. I really hate messing with wiring, but since I could not get any power to my rear green wire, AND I could not find where that particular wire surfaced again under the dash, I pulled off my center console (had to do that anyway, as I need to decide what I am going to do with my choke cables) Low and behold, I found this little jewel still taped up with factory blue datsun electrical tape and tucked away. Well I think it was from the factory.

It has a green wire, AND a black/white wire. The green wire acts weird when the key is turned and fluctuates a millivolt reading constantly. However, the black/white wire, which is 12V in darn near every other place on the car is a switched 12V supply here as well. Eureka!

I still need to run the wire to the pump in the most unobtrusive way I can. I would like to run it inside the car all the way to the back, but I may run it next to the factory fuel lines so I can keep it wire tired close to the tranny tunnel. We will see.

dhoneycutt,

Thanks very much. You should see it now. I spent an hour polishing it with some aluminum polish last night. Looks like chrome for the moment.

I purchased a 30" length of extruded aluminum tubing. It had a 1/2" hole through it. It was round on one side and square on the other. I cut it to be about the length of the valve cover, so I could use 90 deg bends to go around it. The brackets I made allow me to get access to the valve cover bolts without taking off the fuel rail. I also used longer studs in the intake so I could remove the fuel rail without taking off torque from the intake.

I used the square side to attach my carb fittings (drilled and tapped 3/8" NPT using Russell -AN fittings) I thrn drilled and tapped a 1/8" NPT for the autometer fuel gauge after the third carburetor. I tapped Both ends of the line to accept 3/8" NPT. Right now the front end has an NPT fitting to a 90 deg bend that goes to the fuel regulator. I have since fabricated a support bracket to hold the fuel line secure so it is not dangling in the front of the engine. The back of the fuel rail is plugged, but I think I may run a return line in the future to factory spot next to the alternator. I can run a -4 AN line with a restricter in it to give the pump something to push against. This will keep the fuel circulating. So far I have not altered the car in any way permanently, and can go back to SU's in an afternoon. My goal is to not cut, chop, or bend anything I do not have to.

I may remove the fuel rail one more time to manufacture a way to attach return springs... but I have not decided on that yet. My goal is to be running before the 21'st, which is a great car show I went to 2 years ago and got beat by an old celica.. which was a shame!

[madkaw]

you should already have a green wire run all the way to the back of the car already. Look at your wires running to your sending unit, the wire should be there somewhere

[Zedyone_kenobi]

No it is there bud, but I cannot find where that wire is IN THE CABIN. I know the rear wiring harness comes into view again around the passenger door. I have no idea where that wire goes inside the car is my issue. It is not getting any power that is for sure. I know the green wire is suppose to get 12V, but unless I find it in the cabin and feed it some power, I will have to run a wire.

[dhoneycutt]

You should see it now. I spent an hour polishing it with some aluminum polish last night. Looks like chrome for the moment.

I purchased a 30" length of extruded aluminum tubing. It had a 1/2" hole through it.

Please! more pictures!!! :classic:

Where did you purchase the extruded aluminum tubing? I was thinking of something like this but had not seen it done on non-fuel injected engines before. ( I know, I live a very sheltered life;))

[Zedyone_kenobi]

I went to ebay motors and typed in the search engine "universal fuel rail"

Got more hits than I care to mention...

http://motors.shop.ebay.com/i.html?_from=R40&_trksid=p3841.m570.l1313&_nkw=universal+fuel+rail&_sacat=

[madkaw]

If your using a fuel pump relay then do you really need to find the exact route of that wire. If you find where it comes off the ignition switch and where it goes towards the back of the car then you have enough.

[Zedyone_kenobi]

I have not wired in a relay at all. I have seen the green wire in the back, and I do not care how it gets back there, but I have NO idea where it is in the cabin. After it goes in the chassis in the back it is GONE. I guess I could start pulling interior bits off to find it, but I really do not want to!

If I knew where it was, I could tap into it. I still want to wire in a relay, but I will worry about that after I get the car running.

[idoxlr8]

Great information, Thanks.

I'll be ordering my Webers shortly and this thread is great reference:)

Dean

[madkaw]

Under the glove box corner of the cabin. I think it is a seperate wire plug and it's green, just fish around all those wire bundles under the dash by the glove box, you will find it.

I might wire my relay in tomorrow and I will take pics if I do.

The UPS man showed up today with a Mikuni install kit:)

Edited April 10, 2012 by madkaw

[240260280z]

Here is the assembly coming out of the dash on a 1971 Jan 240z.

You can see the green and black leads taped back with blue tape. This is in front of the fuse panel.