I picked up a fuseblock today that's got three 30 amp fuses, one 40 amp and one 80 amp fuse. I was reading the thread in the 1st gen archive about installing the fuseblock and came across the part where the ignition wire (red/white) is installed. Hanman claims that he used a 60 amp fuse for this wire, but what is the ampere rating for this wire? Can I use the 40 amp fuse? Thanks mates!

 

Come now....help a fellow rotorhead out

 

Most seem to use 60amps for the main. I would go with the 60. You might could ask T.J. about it, he's doing the same.

 

Not yet Im not...I was researching the info for it, but I havent yet done it...I think that I head to use the 60 for the main as well. Im not to sure though. And I wasnt using a fuse block from a 2nd gen either, I was custom building one from car audio components.

~T.J.

 

How many do I need to use? There's a main, headlights up and headlights down, correct?

 

On the stock 81-85 non GSL-SE RX-7, there are 3 fuseable links. The main, and two others. Ive heard the main is either 60 or 80 amps (different sources), and the others are either 40 or 60 amps. Its not real clear anywhere what the correct sizes are. Mike-P-28 has posted it somewhere what they are, but I dont know where that post went. Ill go look for it, I know at least that I started it .

~T.J.

 

Here ya go . Hes talking about something I had found at schucks to replace the fuseable link wires with (a solid fuse type thing), but anyway, this is what he said the ratings were.

~T.J.

 

Thanks RMD. So to be safe, I should hunt down a 60A fuse for the main, unless I'm running a 80A 2nd gen alternator?

 

Thats what I would do anyway. I always start small. If it blows, then go a little bigger. Id do it like that just to be safe .

~T.J.

 

I went down to an electrical supplier today and searched all over for the fuse, but I couldn't find the darn thing. NAPA was closed, so I couldn't go there. However, would they carry this type of fuse?

 

You refering to the main wire? Its white/red (notice the tracer is the smaller amount of color)

If its the main, look at what the amperage of the alternator is, and add say 5 amps , If its a stock 55 amp alt, then add 5 and that give ya 60 amps. You will be safe with taht.

 

Also are these fuses MAXI fuses or AGU style fuses. AGU are 1/4 inch glass fuses, and MAXI are huge version of regular plastic fuses.

 

Hes using a 2nd gen fuseblock I think...I dont know which type that is, but what i planned on doing involved using the AGU fuses .

~T.J.

 

FC and 626 blocks (which is what 85rx7gs has) use MAXI type fuses.

 

Yep. It's a 626 block that's smaller than the FC block. Maxi fuses, eh? Never heard of 'em, but I do have three 30A fuses, a 40A and an 80A fuse. I'm currently running the stock alternator. Hopefully I can find a place around here that sells that type of fuse. So far no luck. Shopping 'out in the sticks' is a pain

 

They are pretty common, i see them on tons of cars at the gas station, so you shouldn't have a problem finding them.

 

A good car stereo shop would sell them too .

~T.J.

 

626 and most other cars use MAXI fuses... They look like a regualr plastic fuse but HUGE. (Now that I think of it (EDIT) I think they are autolink fuses... If I remember right, either way the places below should have them in stock. In the autolink style the 80 is screwed in.. The 60A plugs in, thats gonna be the bitch thing there.)

Autozone and Advance autoparts have them... They are a RIP OFF on them tho at 2.99/ea , when they cost like 29 cents / ea but thats the price you gotta pay when you need something... 60A wont be hard find its pretty common. You could use the 80A, but i wouldnt recommend it

 

Yea, thats going to be the problem the 80 bolts in, anything smaller doesn't.
Mike: Do they make 85 amp fuses that will bolt in? I'm running a 80 amp alt and plan to install a fuseblock as well, so I'll need a fuse bigger than 80 right? Or will the 80 work?

 

So if I upgrade to say a 70-80A alternator, the fuseblock will be fine the way it is? If so, I guess I've gotta get myself a new alternator