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Discussion Starter #1
I really want to get this hose adapter out of my system and put the fan switch and water temp gauge sensor where they belong. I can easily put the temp sensor in the water neck on the head where the bypass valve goes.

Anyone know a good place that could weld a bung onto my fluidyne so I can mount the fan switch there just like the rsx had stock?
 

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Why do you want to weld a bung into your radiator if you already have the hasport adapter in the lower rad hose?
 

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Discussion Starter #3
The insert/adaptor is a hack. i would much like to have a bung and have it setup exactly like the rsx. I don't really like having thing spliced into hoses. The car was built for track use, so the simpler the setup, the better.
 

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If the material of the rad. is thick enough you could just tap it. But I would think any rad. shops or good welding shops could weld that fitting for you pretty cheap. :up:
 

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Discussion Starter #6
Well, I've already invested in the fluidyne, so I will probably stick with that. I found a local shop that will weld the bung for me for $40. I just need to source the bung.

Anyone know where I can get the bung or at least what size it is so I can start searching.
 

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I put the rsx radiator in my wife's eg with a k swap. It works verry well, I still have to drill and put her temp gauge in the top side of the radiator.
 

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Discussion Starter #11
Ok, so I check it out some more. I need to doublecheck again when I get home, but looks like the fan switch has the same thread as the o2 sensor. So that is 18x1.5 . I have an o2 sensor bung/plug and they measured the same (18mm) on my calipers. I'll try threading the bung into an old d-series thermostat housing when I get home.
 

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Discussion Starter #13

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Discussion Starter #15
Ok, just some updates.

Thermo switch is 1/8th npt. You can find a weld-on fitting practically anywhere. I got mine from www.summitracing.com .

The fan switch is 18x1.5 . That is the same size as an o2 sensor bung. However it is quite hard to find an aluminum o2 sensor bung. I got mine from ebay. The seller also has a shop which is www.racepartsolutions.com

1/8 npt aluminum bung : ~$3
18x1.5 aluminum o2 bung : ~$5
Machine Shop Welding : ~$65

So compare that against a $35-$40 hose adapter and I'm sure you will agree that this is definately worth the effort to have everything work properly. The machine shop also pressure tested the rad to make sure the welds would hold up.

Here are pics of the final product. Now, my fan switch is in the right place to trigger my fan, and my thermo switch is in the right place for the temp gauge in my gauge cluster to work. I also get to run straight hoses now without any adapters. I'm using the Napa #7940 hose up top, and the EP3 top hose on the *bottom*.





 

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very nice
 

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looking good man... this is the only way to do it... thats why i bought the hybrid racing radiator:up:
 

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Discussion Starter #18
I updated my previous post to include pricing. Yeah, the hybrid racing radiator is nice and definately a good option. Unfortunately it wasn't available yet when I did my build. However one thing that concerns me about the HR radiator is that it mounts on the old a/c mounts since you don't have to relocate the radiator mounts. This means it look like 1 to 1-1/2" shorter. I imagine thats fine for street use, but I don't really wanna go shorter if I don't have to since this thing sees track time.
 

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I would Question HR as well are there radiators comparable to stock radiators and stock use or would it be a comparable unit to one such as Fluidyne for use on modified motors???
 
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