What was the reason for relocating?
A fuse shouldn't make any noticeable voltage drop but your long wire and multiple connection points probably will.

 

Im seeing 12.9-13.1V on my yellow top which is 2-3yrs old now. Not sure if its the age or relocation i recently did but its definitely weak now. Any suggestions for batteries that go in the cabin?
I like the idea of having a dry cell inside.

 

Ya it was weird after the first three starts its starting up like normal now. New problem tho!!

 

Say the line has 10-ohm resistance, due to length. That would drop the current by ~ 1.26 amps. This maybe enough to keep the starter from getting enough current. Check the static resistance between the new battery placement and the starter (+) terminal. Lower, the better. If too high, may need to double up on the high tension leads from the battery.

 

10Ω is a HUGE line resistance, the starter wouldn't move at all.
A few meters of thick 0 gauge cable with perfect connections would have a line resistance of around 3mΩ (0.003Ω).
This alone is enough for a 1.2V drop which should certainly make the cranking noticeable slower.

 

Thanks for the diy. Overall nice job.

Just my opinion, I am not sure this move would be worth it. Battery relocation usually benifits cars that have heavy front weight bias, or poor polar movement inertia characteristics. The s2k has neither. I am assuming you are offsetting a weight increase in the front, (blower) which is admirable. I might try a dry cell light battery first.

I do like the placement of your battery though, very close to the center of gravity.

 

It can help with battery heat soak.

 

Thanks.
Honestly the only reason for the move was I wanted to wire the sos re wire kit up easier (sick of running cables through the cabin, and also wanted to start moving those components closest to the manifold away. (Projects down the road) cleaner engine bay, etc.

 

Good point. That might be a tough environment for a dry cell battery.

To the OP, what you are doing makes sense. I have relocated a few batteries (Mustang/Corvettes) and it seems more often than not created electrical issues. I HATE electrical problems. If the S2ki battery was over the nose, I would move it in a second. Against the firewall, probably leave well enough alone.

If I was going to move it, I think you picked the perfect place.

 

I probably would not have gotten this far if I hadn't realized the stock tray fit so well on the donut holder thread and the plateau to the side. Lol I was gonna toss it and use a plastic O'Reilly's battery box that's really bulky and kinda unnecessary (in the main trunk compartment) :thumb down:

It's totally reversible as is to, I did not strip the positive terminal in the front and kept the ground lead. I am however probably gonna mount it on its side since it's a dry cell and I can't put my soft top down atm lol no bueno good spot just needs some refinement still.