Join Date: Feb 2011
Location: Bellevue, Neb. Close to Omaha
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First of all, Merry Christmas. I am killing some time here before heading to my in-laws for the festivities.
I have my rebuilt numbers-matching engine installed in my car. I have started the process of putting the rest of the car together over the winter.
The first item of business is wiring the starter around the Ram Air exhaust manifolds. I took Bear's advice long ago and got the wiring tube that attaches to the engine mount. I also added the little heat shield for the solenoid. I installed all of this and the starter on the engine prior to installing the engine in the car.
I have now discovered the wires for the starter solenoid will require extending to re-route them towards the front of the engine and downward so they can run through the battery cable tube on the engine mount.
I have a reproduction M&H wiring harness I installed while restoring the car 15 years ago. I can cut the purple (is it 12 gauge ?) wire and the red (is it 10 gauge?) wire and solder an extension wire to both for reach.
My big worry is heat in that confined area around the solenoid and those big manifolds. I have already found on this site stories about starter solenoid wiring getting cooked despite routing them correctly. Is this common? Would it help to cover the wiring with something like the Classic Braid loom sold by Painless wiring? Would quarter-inch or half-inch be a good size?
I never had the problem with the wiring running through the vertical metal tube attached to the top of the stock driver's side exhaust manifold. Maybe I was lucky. I am a little nervous and wondering if I made a mistake switching to the Ram Air manifolds. My engine ran well on the machine shop dyno: 340 H.P. @ 4,839 rpm and peak torque was 443 at 3,018 rpm. I will post my story on this 389 later on. However, all this power won't do any good if my starter wiring melts.
As always, thanks for your input and Merry Christmas.