sean's cheap thrills, 90 1.6 with subaru td04
#421
Not the fitting, but the tap. Since you need to tap about 3/4 or more the way down on those NPT fittings to get the proper engagement cutting off half the fitting's threads will leave a tapered part too big to fit the shallow tapped hole.
Since the windage tray is angled and the fitting is way clear of the oil I don't see how it could have a problem.
IMO there's nowhere near enough meat to ever get NPT to seal on the pan alone, but JB weld does nice. If the fitting is loose fitting in the tapped hole I'd hook up the oil line so it's pulling the installed tension against the JB as it's drying.
Since the windage tray is angled and the fitting is way clear of the oil I don't see how it could have a problem.
IMO there's nowhere near enough meat to ever get NPT to seal on the pan alone, but JB weld does nice. If the fitting is loose fitting in the tapped hole I'd hook up the oil line so it's pulling the installed tension against the JB as it's drying.
#423
SadFab CEO
Thread Starter
iTrader: (3)
Join Date: Sep 2012
Location: your mom's house phoenix, AZ
Posts: 4,560
Total Cats: 1,142
*=see below
Not the fitting, but the tap. Since you need to tap about 3/4 or more the way down on those NPT fittings to get the proper engagement cutting off half the fitting's threads will leave a tapered part too big to fit the shallow tapped hole.
Since the windage tray is angled and the fitting is way clear of the oil I don't see how it could have a problem.
Since the windage tray is angled and the fitting is way clear of the oil I don't see how it could have a problem.
You can see the hole I drilled through the tray, and where the tap was starting to cut into it when it bottomed on the tray. The tap cut demonstartes the curvature of the tray.
Distance from tray to outer edge. Top and bottom. The top is a little over 10mm from the tray to the oiuter edge of the pan
The fitting is in hand tight, so it will go another turn or 2. Ruler shows the 10mm in mark, so it wont hit the tray until the ruler is flush with the pan edge, about 3 more threads or turns.
So with all that, its fine just the way it is. I cant tap it anymore if I wanted to, and if I some how could, any more tap depth than I have now will cause the fitting to bottom on the tray. Ill just spooge the hell out of it, fill in those thread roots, and never think about it again.
Last edited by hi_im_sean; 07-24-2015 at 09:51 PM.
#424
If it turns 2 turns to get tight, and you do that, you're saying the fitting will be like 1 or 2 mm from the windage tray, right?
If it's really that close, I don't think that's ideal, at all. I'd cut some excess threads off the fitting so that once it's threaded in, there is not an excessive amount of it hanging inside the pan. Based on your pics there's only 10mm between the pan and the metal, and that's before any of the fitting is protruding into the pan.
If you shorten the fitting threads, you can fix this, and make the threads engage tighter. And knock a gram or two off the fitting (gram strategy! haha).
If it's really that close, I don't think that's ideal, at all. I'd cut some excess threads off the fitting so that once it's threaded in, there is not an excessive amount of it hanging inside the pan. Based on your pics there's only 10mm between the pan and the metal, and that's before any of the fitting is protruding into the pan.
If you shorten the fitting threads, you can fix this, and make the threads engage tighter. And knock a gram or two off the fitting (gram strategy! haha).
#426
SADFab Destructive Testing Engineer
iTrader: (5)
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 18,642
Total Cats: 1,866
The way I see it is you have 2 options.
<br />
<br />1. Pull the pan and weld a bung on there. The right way to do it.
<br />
<br />2. Splooge on as much JB weld as you can and call it a day.
<br />
<br />1. Pull the pan and weld a bung on there. The right way to do it.
<br />
<br />2. Splooge on as much JB weld as you can and call it a day.
#429
SadFab CEO
Thread Starter
iTrader: (3)
Join Date: Sep 2012
Location: your mom's house phoenix, AZ
Posts: 4,560
Total Cats: 1,142
Does this make you happy pat?
about 2.5mm removed from the end, and i put a huge chamfer on the ID
It went in about 1.8 turns past hand tight. By my measurements, with the amount I removed, that puts the internal "stick out" at about 1mm.
I relief cut the mani, and installed the helicoils.
Building oil lines next.
about 2.5mm removed from the end, and i put a huge chamfer on the ID
It went in about 1.8 turns past hand tight. By my measurements, with the amount I removed, that puts the internal "stick out" at about 1mm.
I relief cut the mani, and installed the helicoils.
Building oil lines next.
#431
SadFab CEO
Thread Starter
iTrader: (3)
Join Date: Sep 2012
Location: your mom's house phoenix, AZ
Posts: 4,560
Total Cats: 1,142
Oil supply and drain done and installed, water plumbed to turbo, started making the downpipe.
Here's the octopus i ended up with
Nice, clean, straightish drain. -10 hose, ending in a 45 at the pan, to 1/2" NPT.
Covered the oil line with a piece of water line for obvious reasons.
And wrapped the whole thing, ill tie it off somehow upon final assy., im pretty sure a plastic zip tie will melt, or at least get brittle quick, being that close to the hot parts.
Divorced gases downpipe
This is about as far as I could get today
And where it ends up. Somewhere along that final straight ill merge the dowpipe and transistion to 3". The wastegate pipe should have plenty of room along the top of the main pipe. Ill probably cut the "annoying tranny ear" off to make more room for install, which may actually require that I use a slip joint and make it into 2 pieces.
Here's the octopus i ended up with
Nice, clean, straightish drain. -10 hose, ending in a 45 at the pan, to 1/2" NPT.
Covered the oil line with a piece of water line for obvious reasons.
And wrapped the whole thing, ill tie it off somehow upon final assy., im pretty sure a plastic zip tie will melt, or at least get brittle quick, being that close to the hot parts.
Divorced gases downpipe
This is about as far as I could get today
And where it ends up. Somewhere along that final straight ill merge the dowpipe and transistion to 3". The wastegate pipe should have plenty of room along the top of the main pipe. Ill probably cut the "annoying tranny ear" off to make more room for install, which may actually require that I use a slip joint and make it into 2 pieces.
Last edited by hi_im_sean; 07-25-2015 at 11:45 PM.
#433
SadFab CEO
Thread Starter
iTrader: (3)
Join Date: Sep 2012
Location: your mom's house phoenix, AZ
Posts: 4,560
Total Cats: 1,142
lol, my laziness makes that really tempting, but no.
I have to be honest, I thought about starting it today like this, as everything else is done. My one neighbor already hates me though.
I have to be honest, I thought about starting it today like this, as everything else is done. My one neighbor already hates me though.
#435
SadFab CEO
Thread Starter
iTrader: (3)
Join Date: Sep 2012
Location: your mom's house phoenix, AZ
Posts: 4,560
Total Cats: 1,142
If it was trailered, I would entertain you guys. The track we run the most has no sound limits. The other track is 96 fuking DB. I dont think the muff I choose is going to hit that mark.
edit: which reminds me, does anyone know if the smart phone DB meter apps are accurate to any usable degree?
edit: which reminds me, does anyone know if the smart phone DB meter apps are accurate to any usable degree?
#439
SadFab CEO
Thread Starter
iTrader: (3)
Join Date: Sep 2012
Location: your mom's house phoenix, AZ
Posts: 4,560
Total Cats: 1,142
I has
http://www.summitracing.com/parts/wlk-17267
Dont care to much about weight, I was trying to avoid the big tangle in the exhaust pipe everyone has to make that runs that big magnaflow. Im going to install a cannon brace which makes it even worse. This muffler should only need 2 45s. If its not quiet enough, ill throw a cat at it.
http://www.summitracing.com/parts/wlk-17267
Dont care to much about weight, I was trying to avoid the big tangle in the exhaust pipe everyone has to make that runs that big magnaflow. Im going to install a cannon brace which makes it even worse. This muffler should only need 2 45s. If its not quiet enough, ill throw a cat at it.