LTX and LSX Putting LT1s, LS1s, and their variants into Third Gens is becoming more popular. This board is for those who are doing and have done the swaps so they can discuss all of their technical aspects including repairs, swap info, and performance upgrades.

Which newer fuse/relay boxes to look for (ls1 swap)?

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Old Oct 22, 2010 | 06:39 PM
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Car: 1987 GTA
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Transmission: 4L60e
Which newer fuse/relay boxes to look for (ls1 swap)?

Based on some prior reading here, I'm thinking that my fans (wired with 2 relays) ought to be wired with 3 relays like the factory 4th gens the engine came from. Some of ya'll use the newer fuse/relay boxes to accomplish this. I'd like to buy a newer fuse box that's wired and ready to plugin if possible.

1) Which fuse/relay boxes will work? How about early 4th gen v6?
2) Anybody have pics of making this look good in the engine compartment?

Thanks!

Edit: This post (https://www.thirdgen.org/forums/ltx-...-fan-temp.html) is what I'm referring to. I suppose I could rewire any fuse box, I just want to avoid any unneeded work.

Last edited by 3.1EyeCandy; Oct 22, 2010 at 07:02 PM.
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Old Oct 22, 2010 | 07:38 PM
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Re: Which newer fuse/relay boxes to look for (ls1 swap)?

Build your own and tuck the relays out of sight
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Old Oct 22, 2010 | 09:26 PM
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Re: Which newer fuse/relay boxes to look for (ls1 swap)?

Warning! Use only in case of excess money and lack of time

http://www.painlesswiring.com/webcat...rchAll=Customs
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Old Oct 22, 2010 | 11:10 PM
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Re: Which newer fuse/relay boxes to look for (ls1 swap)?

use this drawing. then do the pin 42 and 33, and get the tune dialed in to the temps you want then to turn off and on at.
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Old Oct 23, 2010 | 08:16 AM
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Re: Which newer fuse/relay boxes to look for (ls1 swap)?

Originally Posted by FirehawkSS
Warning! Use only in case of excess money and lack of time

http://www.painlesswiring.com/webcat...rchAll=Customs
Ha!

use this drawing. then do the pin 42 and 33, and get the tune dialed in to the temps you want then to turn off and on at.
I've got the drawing saved one92. Currently I've got a 2 relay setup (one for each fan) with my fan temps where I want them. I've only driven the car once for any real distance and it seemed to cool fine - I just didn't want to limit the cooling by keeping it this way.

I was actually thinking this looked like it could be a nice setup if wired right. My current relay/fuse setup is a little cluttered...
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Old Oct 23, 2010 | 09:35 AM
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From: New Mexico
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Re: Which newer fuse/relay boxes to look for (ls1 swap)?

That fuse box you linked to will work but $50 plus shipping seems awfully high. If you want to go the cheap route go with pockets suggestion and scrounge the junkyards. I've found that el dorados, auroras, bonnevilles, and sevilles all have nice wiring setups. I've found junction boxes, buss bars, hard to find connectors, and fuse boxes in these cars. If you have access to a u-pull junkyard then do it for sure and save yourself some money.
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