4x4 Rock Buggy TC 2.4 Build
#126
Junior Member
Thread Starter
Agreed, I just happened across that one for cheap and tossed it out there as an option. An OEM bypass valve for a VAG car would work fine. Found this guy for a decent price.
https://www.ecstuning.com/Search/Sit...lve/ES2804306/
https://www.ecstuning.com/Search/Sit...lve/ES2804306/
#128
Junior Member
Thread Starter
What is the functional difference between that and something like the tial that I posted earlier?
#130
Junior Member
Thread Starter
#131
Senior Member
iTrader: (1)
it doesnt have much to do with engine displacement, turbo size and boost levels are the factors for them. if its too small you will end up with compressor surge, exactly what you are trying to eliminate by using a bypass valve. i would think one of the vw style valves would be enough, but really bigger is better.
#133
Junior Member
Thread Starter
Despite the fact that their web site does not show it, I can confirm that the Level Zero intake flange does in fact come machined for the crankcase orifice after receiving it. I'll post a pic later.
#134
Junior Member
Thread Starter
Couple randoms from the other day at the shop. I've only been tig welding for a year or so, and not what I would even remotely call regularly. Learning new skills and information is about 80% of the fun for me.
#136
Junior Member
Thread Starter
Yes. It's a -20 female o-ring bung welded in. I started with this:
ARP Weld Bungs 800-8117 - Free Shipping on Orders Over $99 at Summit Racing
I had to turn it down just a little and shorten it to fit in the housing but it comes unnecessarily long and thick, I assume specifically so that I can do what I did. This will thread into it still with length to spare:
Meziere AN O-Ring to Smooth Hose Adapters WN0032S - Free Shipping on Orders Over $99 at Summit Racing
Also while I was having fun with the TIG and lathe I made my own oil feed adapter for the port in the block using a bolt and a spare -6 fitting I had laying around:
I ordered an M12x1.5 adapter for the oil inlet port on the turbo and then BNR PM'ed me back on FB saying that that port is actually m12x1.75. If that's true I'll probably end up making another adapter like I did for the block.
Right now my plan is to make hard lines for the oil and water on the turbo. But we will see how that goes ...
ARP Weld Bungs 800-8117 - Free Shipping on Orders Over $99 at Summit Racing
I had to turn it down just a little and shorten it to fit in the housing but it comes unnecessarily long and thick, I assume specifically so that I can do what I did. This will thread into it still with length to spare:
Meziere AN O-Ring to Smooth Hose Adapters WN0032S - Free Shipping on Orders Over $99 at Summit Racing
Also while I was having fun with the TIG and lathe I made my own oil feed adapter for the port in the block using a bolt and a spare -6 fitting I had laying around:
I ordered an M12x1.5 adapter for the oil inlet port on the turbo and then BNR PM'ed me back on FB saying that that port is actually m12x1.75. If that's true I'll probably end up making another adapter like I did for the block.
Right now my plan is to make hard lines for the oil and water on the turbo. But we will see how that goes ...
Last edited by patooyee; 12-22-2015 at 09:41 PM.
#138
Junior Member
Thread Starter
I've got them on now, just haven't taken a pic since I did. It should all fit. I might have to make my own 180* mandrel bent pipe to get around the corner but that isn't a big deal.
#140
Junior Member
Thread Starter
#141
Junior Member
Thread Starter
You need to incorporate a one way check valve to allow vacuum to be pulled, but keep boost pressure out. would be as simple as drilling/tapping an npt fitting into the flange and running a line to the intake manifold (with a check valve in-line). If you were to run an oil air separator, this is the line you would want to plumb it into
#142
Senior Member
iTrader: (3)
Being that my intake flange does have the PVC orifice machined into it, my plan will be to tap the hole and run a line with a check valve to a vacuum fitting that I will weld into my custom intake. The hose fitting on the valve cover will just have a hose attached to it going to the intake tubes before the turbo, MAF, and TB but after the engine air filter?
#143
Yeah. I would definitely put it after the maf if youre planning on putting the maf on the intake. Otherwise if youre running a blow thru maf the intercooler will catch most of the oil. Or you could use a catch can. I got a decent mishimoto one on ebay for around $100.
#144
Junior Member
Thread Starter
Yeah. I would definitely put it after the maf if youre planning on putting the maf on the intake. Otherwise if youre running a blow thru maf the intercooler will catch most of the oil. Or you could use a catch can. I got a decent mishimoto one on ebay for around $100.
#145
Junior Member
Thread Starter
The oil port on the turbo turned out to be m12x1.75 so I made another fitting there and also welded a bung into the oil pan for the return line. (The water lines are m14x1.5, BTW.) I got a shipment in from Summit with the stuff I needed so I made both the water lines and the oil drain line out of hard lines. Forgot to take pics, will get some up later. I still need to make the oil feed line anyway.
Also ordered some material to start on the intake with:
The d-shaped stuff turns out to be a lot bigger in life than it seemed in the pics so I am thinking of cutting it down or something, possibly not even using it. I'm going to draw it up in Solidworks before I cut anything and go from there. I'll start on that this week. The oval stuff is the perfect size for the Ecotec intake ports though.
Also ordered some material to start on the intake with:
The d-shaped stuff turns out to be a lot bigger in life than it seemed in the pics so I am thinking of cutting it down or something, possibly not even using it. I'm going to draw it up in Solidworks before I cut anything and go from there. I'll start on that this week. The oval stuff is the perfect size for the Ecotec intake ports though.
Last edited by patooyee; 12-27-2015 at 02:07 PM.
#147
Junior Member
Thread Starter
That was my plan. But its so big that it blocks access to both the top and bottom sets of flange bolts. I might french some access tubes into it if I use it but that's a lot of work just to compensate for the wrong material choice.