14b help, do's and don't's

[DSM-Hottie]

So I blew up my 2nd T-2small so I'm upgrading to a 14b

How much boost are they good for? WTF

Feed from the head or oil filter housing? WTF

450cc injectors big enough?

Just some over all info on 14b's would be great, don't know much about them.

 

[Jdog]

With stock fuel 14PSi should be your max, with aftermarket fuel they are good for 20-21. Most people advise to feed from the head because thats how it comes from the factory. Best injectors for it are 660s but you definitely need fuel tuning if you are going to push more than 14PSI.

 

[DSM-Hottie]

I don't run more then 15psi(boost creep) on my t-2small.
I need to find the spot on the head to run it. Everyone keeps saying to go from the head.
Pics would be great

my ex blew up my first t-2small. This one was my fault. It was an accident though. The J-pipe I'm getting has a spot for a mbc. Yeah I can read, was just hoping to get some info in one spot instead of all over the place.

 

[BoostFrenzy]

I need to find the spot on the head to run it. Everyone keeps saying to go from the head.
Pics would be great

Grabbed this from the Virtual Engine Bay of a 2g and modified it:

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The Red arrow points to the bolt that will be replaced for the oil feed line.

 

[DSM-Hottie]

Ok now that was a huge help! Thank you, I'm a newb you have to be patient with me.
What size banjo bolts will I need?

 

[BoostFrenzy]

10MMx1.25 with 2 10MM copper crush washers.

And instead of trying to piece it together, you can just buy this kit from ExtremePSI for cheap.

 

[Bluefire16]

Best idea, call up DSM graveyard. Tell em you need the bango bolt from the head going to the turbo... they sell for like 25 bucks! Graveyard had it shipped to me for 8....

 

[BoostFrenzy]

Thank you. Have you come across a pic of what it looks like being fed from the head?

Similar to this picture of mine, but most likely without the inline oil filter: Or that turbo...or that o2 housing...or that wastegate...or that intercooler pipe...maybe it's not such a great picture

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[romeen]

I would recommend using the Mitsubishi factory oil feed line (from the head) because it has an oil restrictor built into it. This gives the turbo the exact amount of oil that it was designed for. This is how I am feeding my EVO3 16G.

PM sent.

 

[DSM4me44]

I've been running a 14b now for about 3 years over my old T-25.

1. buy a 1g factory return line.

2. bend your stock water lines so you do not have to buy other ones. I am talking very minor bending.

3. buy a j pipe from ebay.

4. cut and rotate your intercooler pipe (if you still have the stock rubber lower pipe) so it connects to the j pipe.

I am not running my oil line from the head, it is from the oil filter housing via SS line. No problems and the turbo has been healthy for awhile.

I am running 18 psi with a DSMlink tune and a 190 fuel pump, stock injectors.

 

[JusMX141]

....and instead of trying to piece it together, you can just buy this kit from ExtremePSI for cheap.

^^
Costs just as much as the factory line with all the hardware, and the braided line doesn't have a restrictor built into the line as the factory one does.

 

[laserspeeddemon]

You can use used oil feed line and oil return lines.

-Make sure to use a plumbers plug on the old oil feed location.

-Oil feed:
Use the Banjo Bolt from a 1g on the head (INSTALL THIS SIDE FIRST!!! TRUST ME!!!!)
Use the Banjo bolt from 14b on the turbo (NEVER EVER EVER EVER INSTALL THIS SIDE FIRST, BAD THINGS HAPPEN)

-Oil Return:
Use 2g bolts on the oil pan (INSTALL THIS SIDE FIRST!!! TRUST ME!!!!)
use 14b bolt on the turbo (NEVER EVER EVER EVER INSTALL THIS SIDE FIRST, BAD THINGS HAPPEN)

-Use the 2g water lines, they just need to be kinked slightly, that's it and they work fine.

- Use a J-pipe.

- You can use a 1g (I think the 90's are longer, but I may have it backwards it maybe the 91-94 that's slightly longer) LICP hose.

USE TEFLON TAPE on ALL THREADS!!!!

 

[JusMX141]

USE TEFLON TAPE on ALL THREADS!!!!

I don't use Teflon Tape on anything that has to do with oil, or oil getting to my turbo.

 

[laserspeeddemon]

Oh yeah, we got crush washers on the feed lines. DOH!

I would on a SS lines that screws straight in. I understand why others don't like to use it, but I don't like leaks so I elminate them before they can become an issue.

 

[DSM-Hottie]

Thanks guys! Telling me what sides to install first is a big help!
Teflon tape? Will that hurt anything?

 

[JusMX141]

Don't use it on your oil supply line's fittings. In fact, all of the fittings (oil and coolant) on a 14B's center housing use copper washers to seal, so Teflon tape really isn't going to help on a straight-thread seal. If the fittings were pipe thread (NPT, tapered) then the tape would have a purpose.

Even on Garrett center housings with NPT threads on the oil supply, I refuse to use Teflon tape. I'll use the old Permatex #1 or #2 sealants depending on the application. Teflon is stringy, and would lay awake at night thinking of strings of Teflon wrapped around my turbo's thrust plate.

 

[gsxeclipse97]

Ummm well. from what i have read it is better to feed the oil from the oil filter housing because it has more pressure and is less prone to blockage due to the carbon that builds up in the head. I personally have never seen a 2g that feeds from the head but. I considered doing it myself at one point in time but then i learned that stuff i metioned

 

[rush2252]

^^^^the 2gs run the t25 garret which IS fed from the OFM. The 1g cars running the MHI 14b/13g run the feed from the head. As stated earlier they have a restrictor built into the line to allow for precise oil flow. If you run too much pressure to the unit it can do damage...

I sent the pics to your cell earlier try turning it off and back on. I sent them twice so you'll get them sooner or later

Tomorrow I will take some detailed pics and show you EXACTLY how it should look.
I did my homework for a few months before I got impatient and slapped the 14b/16g on. I think I covered everything when it came time to install thanks to some older DSMers

-Kolby

 

[snowborder714]

^^^^the 2gs run the t25 garret which IS fed from the head.

Last I knew, they were all fed from the OFH.

 

[tkelly27]

The restriction is in the banjo fitting. I forget if it's in the feed line or the bolt itself. You can also make a restrictor out of any banjo bolt by filling it with weld and drilling it.

I run the oil feed from the OFH with a SS line. It's been like that for a thousand miles on a turbo with 15k on it after eating a valve through the turbine. No problems, even with my stupid high oil pressure. I love SS oil feed lines, crush washers are lame.

 

[Mrdrd_Laser]

14b's are great turbo's for being so small, I wouldnt go past 14-15psi on stock fuel system though or your asking for trouble. I'm still running n/t pistons and 5deg base timing with my 14b on 20psi running 110 octane I made 252fwhp on stock side mount and rubber intercooler pipes! As for how much boost they will handle, some people say 20psi is maxxed out and some have run it to 25psi and were still making power.

 

[JusMX141]

As for how much boost they will handle, some people say 20psi is maxxed out and some have run it to 25psi and were still making power.

That's where keeping an eye on peak airflow and being able to read a compressor map is so important.

We know the 14B compressor pretty much maxes out around 34 lb/min. If you have your stock turbine housing ported or have a 7cm2 turbine housing installed and you're seeing 34 lb/min at 22-25 psi with a 14B, then there's no reason to push it any further. You're only hurting the turbo, and generating more hot air to get blasted into your engine.

 

[JusMX141]

For a relatively stock car, just use the 14B's standard 6cm2 turbine housing and the sealing ring with your unported 2G manifold. Your 14B won't be able to utilize the 7cm2 housing until you really start giving it hell.

Ported o2 housings are always a good idea.

 

[romeen]

Do it. A ported O2 housing can make a very noticeable difference.

 

[tkelly27]

I use a thin layer of grease. Turns into a carbon seal the first time it starts up. Works if both surfaces are clean and fairly flat.