Blade fuse holder

[SigepKat]

I've seen the posts on replacing the ceramic fuse blocks w/blade fuse blocks. It's something I need to do, since I cracked the stock fuse block removing the gas tank (oops!) Has anyone found an (ideally cheap) set of fuse blocks that works for this application?

Thanks!
CM

[Flat6pac]

Some one was making them and showing their installation. I’m sure if you researched it you’ll find it.
Bruce

[old man neri]

Two options right here. Enough to get you started anyways.

911 Front Fuse Panel 1974 - 1989 - Classic Retrofit

Cheap and easy ATO fuse block installation

[Jack Stands]

Though they’re expensive, I think the Classic Retrofit panels are the way to go until someone can somehow 3D print a replacement panel to accept the blade type fuses. Porsche has too many individually installed wires leading to the fuse box without a lot of wiggle room. And if you want to install the cover, that’s another consideration.

[Duc Hunter]

I have classic retro in 2 cars and love them!

[tops911]

I got mine from Fred Cook here on the Pelican BBS, it came with headlight relays. I got the blade fuse holder in the engine bay from Fred Cook also

[SigepKat]

What would be the requirements for a 3d printed one?

[Jack Stands]

Correct size and mounting depth first off, then reliable fuse hardware.

[timmy2]

ReFuze panels work really well also.
Scroll Down on this page.
https://www.pelicanparts.com/cgi-bin/ksearch/pel_search_2016.cgi?description=Fuse+panel

[Tremelune]

If you're handy with a crimper or soldering iron, it isn't difficult to roll you're own...It's just finicky and time consuming, and it might look goofy when you're done.

https://www.bluesea.com/products/5034/ST_Blade_Fuse_Block_-_12_Circuits

https://www.amazon.com/gp/product/B0734JC45M/ref=oh_aui_search_detailpage?ie=UTF8&psc=1

I wish the Classic Retrofit sucker had provisions for more fuses for accessories...I'd also love a replacement for the finicky and expensive round Porsche relays...and some room for extra relays...

I think about throwing in some modern Chevy fusebox for $20, but messing with all those wires is daunting. Porsche has them running everywhere...plenty of them unfused.

[donporfi]

Like Timmy2 said, Refuze works well. Same size as the original fuse panels
https://www.cddautogear.com/refuze-products/

[Jonny H]

Originally Posted by Tremelune

If you're handy with a crimper or soldering iron, it isn't difficult to roll you're own...It's just finicky and time consuming, and it might look goofy when you're done.

I think about throwing in some modern Chevy fusebox for $20, but messing with all those wires is daunting. Porsche has them running everywhere...plenty of them unfused.

Yup, there are approximately 60 wires connected at the fuse block.

If you are going to 'roll your own' please consider that the most aftermarket fuse blocks have Faston (spade) connectors.

The Porsche wires are designed for screw terminals and each one has a brass ferrule crimped on the end. These will have to be removed, the wire stripped back to shiny copper and a new spade terminals crimped on. Some of the wires are already short so will need extending.

just imagine for a moment, labelling, cutting, stripping and crimping 60 wires in the confines of the luggage bay. Then consider that each crimp you make will potentially introduce another contact failure point. Cheap crimp tools and crimps are notorious for failing pull tests, particularly if your tool came from eBay or HF. A decent pro crimp tool is needed here and expect to pay $150+ for that. Anyone using the blue and red plastic ended 'speed crimps' may as well just set fire to their harness before they start just to save the inevitable.

In addition, the Porsche fuse blocks have bus bars on the back that will need to be 'recreated' using external wire bridges. You will soon find that this turns into a nightmare of fiddly loops of wire and 'piggy back' spade connectors.

A DIY solution is days of work and damages the original loom. It makes future fault finding onerous for new owners and mechanics. Most end up looking like a snake's wedding and are probably less reliable than the original system.

[CDD Autogear]

Originally Posted by SigepKat

What would be the requirements for a 3d printed one?

Although 3d printing is useful for prototyping it is not yet cost effective for production. Also the materials available are not able to withstand the harsh underhood environment over the long term.

ReFuze panels are molded from DuPont Rynite 530 a glass filled PET resin approved by the big 3 automakers for the automotive environment. The contacts are made from Naval brass which is very corrosion resistant. In addition ReFuze has no joints of any kind between the wiring and the fuse blade. All ganged positions match the OEM configurations and are also without any joints between them. This eliminates any failures due to loosening or corroding joints.

The spacing of the fuses on ReFuze are the same 15mm as the OEM making it a 'drag and drop' exact replacement with respect to existing wiring. Just remove the old and install the new.

bugstrider has an excellent install review of his ReFuze.

My "ReFuze" panel upgrade adventure

ReFuze panels are available from our host for Porsches from 356 up to 1989 911.