Anybody know if somebody makes an aftermarket steel or aluminum waterneck for the S5 cars? I hate the plastic ones and flat out don't trust them after the constant abuse and heating/cooling... I know that over the years they turn brown and become very brittle. The S4 uses a metal one, so why did mazda go to plastic? Any reason on this?



If I can't find a metal one, i'll be making one....

umm Apex13b on here made one or two not that long ago on a lathe, they looked like nice pieces, might try pming him or he might look here.



and yes i hate the plastic neck too...and its $50 from the dealer, give or take some.



kevin.

Do the S4 necks bolt onto the S5?

Nope... not at all. Different bolt pattern and all.





I'll probably make one...see how it turns out,lol..

i wonder how hard it would be to redo an s4 neck, so it fits an s5. hmmm [goes to look at em in the back]

be tough. the s5 is a smaller diameter and the bolt holes are in bulges that stick out

Yea, way ahead of you on that one, lol.. I have an extra s4 and I was like...maybe just cutting/welding a new flange would work...no, not the case, lol.. that would be nice though.



I just don't know why mazda got away from the metal, maybe cost..who knows.

too bad he wont make a run of them, he has one for me, I just need to get it from him https://www.nopistons.com/forums/pub...IR#>/bigok.gif



http://robx-7.nopistons.com/userimag...68fba15ba9.jpg

you could just run the whole s4 water pump assembly if you have a spare one.



then with the s4 pump you can use the s4 neck.



kevin.

I dont think its that easy

well i know he isnt on the stock ecu, so the different sensors dont matter, i dont really see any other reason it wouldnt work.



kevin.

you need the s4 front cover also

There is a site that sell those, I just saw it last week. Damn if I can remember the link....

Damned you revvin ..>THINK THINK, lol..



Yea, i considered swapping over to the S4 front cover/waterneck/pump, etc. I have uber S4 parts laying around...but I think it would be nicer to just swap the neck. Much less headache...



We'll see how it all goes. That lathed part looks nice though..I don't have access to a lathe so I'll probably just have to go w/ tubing, flanges and some fancy welds...

ohhhh. just wondering why? does it have a different recessed area? just for my future knowledge lol.



kevin.

inexplicably yes

Umm i could make u a stainless steel one. $100 nz

really? that so...soo... mazda-ish.



kevin.

if someone sent me theirs so i could draw it up i could have them made....

The S4 pump with fit the S5 front cover just fine. I just test fitted one. The problem is mounting an S5 pump to an S4 cover. There are clearance issues that can be address with a die grinder.

thanks for clearing that up.



woot.



kevin.

i just bought a new s5 plastic from mazdatrix for 60 bucks i think... it's expensive and pretty..

Yea, I can get a new one, but I'd rather not have plastic...



..I'm waiting on my buddy to get moving on his '68 stang project so I can get in the shop and see what I can do about making a metal one, lol...

The stainless option.

If you want one it would be $125 NZ .

Hrm... I put that on the backburner while i moved forward with the FB project...but I may take you up on that next week. What would shipping charges be to the states though...

$12 nz shipping air mail. Exchange rate 62c US = $1 nz today .

that thermostat housing is pimp

Actually, now i recall why i left this project....



I'm actually going to an electric water pump setup...no waterneck needed,lol. I knew there was a reason I skipped that.