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PTE Turbo Questions

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Flash

20+ Year Contributor
3,360
14
Nov 30, 2003
Highlands Ranch, Colorado
I want a PTE SCM5031 turbo, but I've read that PTE turbo's are some what 'unreliable' (or maybe that was just the ball bearing PTE's and not the SCM versions). I've searched the forums and have been reading through past threads, but it's hard to read a bunch of different things from multiple threads and put it all together to compare all the info.

I certainly don't want a turbo that will fail. So can you all give me some more info on the PTE SCM5031 50 trim turbo? Is the SCM5031 a good turbo or was it just the PTE ball bearing turbos that I read were failling instead of like the SCM5031?

Also, does the internal wastegate come standard on the SCM5031 too?

Here's a link just incase you don't know what I'm talking about. http://www.extremepsi.com/store/customer/product.php?productid=17341&cat=506&page=1

Thanks!
 
I have the PTE SCM5031 and it does not come with an internal gate. The link you provided would be 900 with the internal gate. As for PTE horror stories, that was when they used the 270* thrust bearing, but they have since replaced it with a 360* thrust bearing. Also, that was on the non ball bearing CHRA. I have yet to hear anything bad about the new garrett BB CHRA's and I have had my turbo running for about 300 miles now. Time will tell if this is a quality CHRA, but from what I've been experiencing, the BB shifts are worth it :thumb:
 
I agree that the issues were related to the 270* thrust bearing and not the 360*. I have had my pte scm 5252(standard bearing 60-1, stage v p-trim turbine) for over a year with no issues what so ever. I did have to restrict my oil feed to .082" for sake of spool time and oil blowby but other than that, it still works flawlessly. And for reference, I am running my feed from the oil filter housing with bs removed. My oil bypas has been enlarged and slotted and I still see 100+psi oil pressure at wot above 5k rpm.
 
Whats with the oil pressure? All I would really like to do is just run an oil line from my oil filter housing straight to the turbo. Can I do this? It's the same way I have my e16 set up. I just don't feel like messing with my oil bypass and enlarging this and reducing that, etc...

I was planning on using the SS oil line I used for my e16 on the SCM5031 since my e16 only has 100 miles on it. Will the SS oil line I have now on my e16 work on SCM5031, or do I need something special?

Is there anyway I can use my stock oil return tube on the SCM3051? Or do I have to buy a SS line kit with AN fittings?
 
Flash said:
Whats with the oil pressure? All I would really like to do is just run an oil line from my oil filter housing straight to the turbo. Can I do this? It's the same way I have my e16 set up. I just don't feel like messing with my oil bypass and enlarging this and reducing that, etc...

I was planning on using the SS oil line I used for my e16 on the SCM5031 since my e16 only has 100 miles on it. Will the SS oil line I have now on my e16 work on SCM5031, or do I need something special?

Is there anyway I can use my stock oil return tube on the SCM3051? Or do I have to buy a SS line kit with AN fittings?


PTE instructions wil tell you to run the feed from the oil filter housing unrestricted. This isnt the best instuctions at all. If you check with garrett, they will tell you that this is wrong. This particular chra should never see over 55-60 psi oil pressure. Follow pte's directions first but if you have really slow spool and excessive smoking upon boost, you need to restrict the oil feed. Serch and you will find ways to restrict the oil feed and vendors that offer a resrticted oil feed inlet.

As far as reusing the feed line from the 16g, you will have to get a 1/8 npt- #3 or4 an 90* adapter, depending on which oil feed line you have. To the best of my knowledge, agp feed lines are #3 and most others are #4. The banjo fitting on the turbo end of the oil feed line will not fit the new garrett style turbo.

For the return, you can either get the braided return line or get a barbed fitting for the turbo, cut the pipe fron the stock return, and run a rubber hose between the fitting on the turbo and the stock cut return. By no means can you adapt the stock return line to the new turbo.
 
Good info, but I have to attest to one thing. I have reused the same SS oil feed line on my e316G to my SBR G50 and now to my 5031 without having to adapt it at all. Since the restrictor is built in, I simply used the one included instead of the female/male fitting that was on the other turbos with the 90* female end that connects to the SS line.
 
Does anyone have the PTE "5031 RLE Dual Ball Bearing Turbo" being sold by Slowboy Racing? How does that one compare to the PTE SCM5031E sold by Extreme PSI? I'm also interested in the PTE SCM5031E since it seems to be the best bang for the buck compared to the other bb turbos. Flash, did you purchase a turbo yet or are you still deciding? I would greatly appreaciate comments and suggestions. Thanks in advance.
 
Flash said:
Whats with the oil pressure? All I would really like to do is just run an oil line from my oil filter housing straight to the turbo. Can I do this? It's the same way I have my e16 set up. I just don't feel like messing with my oil bypass and enlarging this and reducing that, etc...

I was planning on using the SS oil line I used for my e16 on the SCM5031 since my e16 only has 100 miles on it. Will the SS oil line I have now on my e16 work on SCM5031, or do I need something special?

Is there anyway I can use my stock oil return tube on the SCM3051? Or do I have to buy a SS line kit with AN fittings?
to much pressure usually makes them leak.. i suggest a -3an line, it will make sure it doesnt get to much oil.. if you need one let me know
 
blcknspo0ln said:
If extreme PSI is selling hte 5031 BB version, it is the same one SBR is selling. Here is some insight on my experience with the turbo.

http://dsmtuners.com/forums/showthread.php?t=218036


SBR is selling 5031 RLE Dual Ball Bearing Turbo for $1,025 and the PTE SCM-5031E (50 Trim with stage 3 turbine wheel) for $879. ExtremePSI is selling the PTE SCM-5031E for $850. That's why I asked about the PTE 5031 RLE version since it says dual ball bearing and it's more expensive. I'll contact SBR and ask them about it and post back. On the page it says 49 pounds per minute is expected high end flow for this turbocharger and spool is usually in the 3500 to 4000 rpm range. Blckspooln, thanks for your installation article and your review of the 5031E turbo. Keep us updated with your progress.
 
I called them to ask about what they recommend for the oil feed. They said filter housing. Everything would be fine as long as their wasn't more than 80psi going to it.
 
eclipseGSTud said:
Flash, did you purchase a turbo yet or are you still deciding? I would greatly appreaciate comments and suggestions. Thanks in advance.

I decided on the 5031E. I just am starting to read so much praise about the BB version, so I don't know if I should get one. I hardly drive my car, and it's definitely not a daily driver, so I don't really see the need for ball bearing. I decided to definitely go with a external wastegate mounted on the exhaust manifold. I'm just now trying to decide on a tubular manifold. The Victory Performance one is beautiful, but the Shearer mani is really nice. But that's all for another thread some time.
But I'll definitely be ordering everything within the next two months. I'll keep you all posted.
 
eclipseGSTud said:
Blckspooln, thanks for your installation article and your review of the 5031E turbo. Keep us updated with your progress.

No problem :thumb: Besides, I think trapping 110mph on stock ECU (very agressive timing, btw), SAFC2, and NO tuning at all, I'd say it's a pretty good turbo :D

fulanititoo8198 - That is correct. However, if you did the BSEK mod, you will be running at a higher oil pressure than the rest of us. Either way, all PTE turbos have a built in restrictor, so you should be okay.

Flash - Ever look into the SBR casted manifold? It already has the wastegate flange (although it is really runner 1) and should fit pretty nicely for any turbo. Either way, report back!
 
SBR and extreme are sold out. dejonpowerhouse.com i think is the only place that has them ready to ship.
 
Flash said:
I decided on the 5031E. I just am starting to read so much praise about the BB version, so I don't know if I should get one. I hardly drive my car, and it's definitely not a daily driver, so I don't really see the need for ball bearing. I decided to definitely go with a external wastegate mounted on the exhaust manifold. I'm just now trying to decide on a tubular manifold. The Victory Performance one is beautiful, but the Shearer mani is really nice. But that's all for another thread some time.
But I'll definitely be ordering everything within the next two months. I'll keep you all posted.

If you want to feel/see the difference between the Standard CHRA and BB, you can come down to Castle Rock.

My brother has the BB version and I have the Standard Journal version of the 5031E
The difference in spoolup is very noticable.
 
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