What An fittings for top of valve cover?

Post by **fast_s14** » Thu Oct 23, 2008 11:30 am

I want to run An stainless lines off of my valve cover to my catch can. What size fittings are needed to do this? I know the valve covers will need to be tapped.

Post by **Darius** » Thu Oct 23, 2008 11:59 am

Pull the stock fittings out, measure the bores, compare measurements to those needed for slightly larger NPT fittings, drill to spec, tap with appropriate NPT tap, and insert NPT to AN adapter. Done.

Post by **Coolwhip** » Thu Oct 23, 2008 1:46 pm

i went straight for the tap

Post by **fast_s14** » Thu Oct 23, 2008 2:09 pm

i seen the answer awile back pop up in an unrelated post and i can no longer find it. ill just find the nearest tap and tap it out..

Post by **Coolwhip** » Thu Oct 23, 2008 2:30 pm

it should be like 3/4 NPT or similar

Post by **240z4u** » Thu Oct 23, 2008 4:14 pm

fast_s14 wrote:I want to run An stainless lines off of my valve cover to my catch can. What size fittings are needed to do this? I know the valve covers will need to be tapped.

Bling bling yo!

Post by **BoostFab** » Thu Oct 23, 2008 4:28 pm

tap it for AN 10

Post by **Coolwhip** » Thu Oct 23, 2008 4:55 pm

bring bring yo!

3/4 to -10AN

Post by **fast_s14** » Thu Oct 23, 2008 5:00 pm

240z4u wrote:
Bling bling yo!

I wanna be baller...lol

Post by **WhatsADSM** » Thu Oct 23, 2008 7:53 pm

Yup easiest way is to just use a NPT to AN adapter just as coolwhip described.

In my case, an AN bung was actually welded on. Bling bling fools

Post by **Coolwhip** » Fri Oct 24, 2008 12:53 am

get that engine out of here and into the RBBA thread,

Is this the S14 that was sold from Miami, FL?

Post by **Darius** » Fri Oct 24, 2008 5:12 am

Why doesn't anybody use a 90-degree adapter fitting out of the valve cover to lower the prolfile of the SS lines? The AN fittings have such a large radius bend that it makes them stick up. Just a question.

Post by **Coolwhip** » Fri Oct 24, 2008 5:23 am

to bring more attention to that area. Just like a wonder bra compared to a sports bra on the chick of choice.

LOL, jp, a 90 fitting is a better solution for low profile indeed.

Post by **WhatsADSM** » Fri Oct 24, 2008 6:18 am

Coolwhip wrote:get that engine out of here and into the RBBA thread,

Is this the S14 that was sold from Miami, FL?

Yea, yea I've been lazy and haven't posted up. I'll go do it now.

It was from the Fort Lauderdale area.

Post by **Coolwhip** » Fri Oct 24, 2008 6:45 am

WhatsADSM wrote:It was from the Fort Lauderdale area.

Yea thought I recongized it. Nice engine indeed.

Post by **moso240** » Fri Oct 24, 2008 10:40 am

should of bought that car... he was willing to let it go for 13 grand o well nice car and ake care of it

End threadjack

Post by **krayton** » Fri Oct 24, 2008 11:34 am

Darius wrote:Why doesn't anybody use a 90-degree adapter fitting out of the valve cover to lower the prolfile of the SS lines? The AN fittings have such a large radius bend that it makes them stick up. Just a question.

Post by **Bluefire** » Tue Oct 28, 2008 6:55 am

QUOTE=Darius]Why doesn't anybody use a 90-degree adapter fitting out of the valve cover to lower the prolfile of the SS lines? The AN fittings have such a large radius bend that it makes them stick up. Just a question. [/QUOTE]

Exactly the problem that I ran into. I even tried running the low profile 90's but it was still high.... The 90degree adapters worked out the best.

-Bluefire

Post by **Darius** » Tue Oct 28, 2008 8:39 am

Now that's what I'm talking about guys!

Post by **BoostFab** » Tue Oct 28, 2008 12:28 pm

Bluefire wrote:-Bluefire

funny my mounts are just like that, except i use the red urethane.

Post by **fast_s14** » Sun Nov 02, 2008 1:30 pm

Coolwhip wrote:it should be like 3/4 NPT or similar

well i got around to tapping the valve cover holes today and it ended up being 3/8 npt and not 3/4 npt.

Post by **Coolwhip** » Sun Nov 02, 2008 1:43 pm

fast_s14 wrote:
well i got around to tapping the valve cover holes today and it ended up being 3/8 npt and not 3/4 npt.

fast_s14 coolwhip

Post by **MATTs14** » Mon Mar 30, 2009 1:57 pm

hate to bring this back from the dead but can anyone confirm the size of the fittings for the RB20's valve covers

Post by **Darius** » Tue Mar 31, 2009 2:40 am

Just go measure it...why are people making this seem so difficult?

Post by **l0nestar** » Tue Mar 31, 2009 3:42 am

Hole: tap to 3/8 NPT. Hoses: -6AN

Post by **240z4u** » Tue Mar 31, 2009 4:40 am

This isn't rocket surgery folks!

Post by **MATTs14** » Tue Mar 31, 2009 5:25 am

i know but 3/8 just seems a little small. It looks more like 3/4 to me. Maybe the 20 is different than the 25 but it looks like bluefire is running 3/4 fittings to me. I run -6 AN fuel line and its the same as 3/8 which is pretty small

Post by **Darius** » Tue Mar 31, 2009 6:19 am

Do you have a 3/8" NPT tap? The plain hole diameter that is required for it to cut threads is 0.58"

A 1/2" NPT tap requires a 0.70" hole. ($20 drill bit BTW)

A 3/4" NPT tap requires a gaping 0.92" hole.

I agree that -6AN is probably a little small, but the stock setup vents both valve covers thru one vent hose under boost that has close to the equivalent area of a pair of -6s. I ran -8AN lines but most run -10AN.

Post by **l0nestar** » Tue Mar 31, 2009 8:52 am

240z4u wrote:This isn't rocket surgery folks!

I love it!

Post by **MATTs14** » Tue Mar 31, 2009 9:45 am

Ok well i see lots of catch can setups with massive hoses such as CoolWhips and WhatsADSM's Why is this?? Im sure that that isnt -6an hose

What An fittings for top of valve cover?

What An fittings for top of valve cover?

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