Ok so am having this problem which i cannot figure out. Hopefully some opinions with solve this problem. I got the new pte bb 57trim back in december. I never turned it past 20psi until i got the meth kit installed. Low and behold i turn the boost past 22psi and the turbo decides to surge. I had this same problem with the bullseye vtrim after 18psi so i just returned it and got a 50trim. So this is how it goes. Full boost at 4,000rpm the boost gauge needle flutters wildly around 24-28psi until around 5,800 rpms when the boost stays rock solid at 25psi until 8,000 rpm's. My mods are in my profile. Am seriously stumped hopefully you guys can help.

I can make my 50 trim surge when I have the Gain cranked up on my EBC, turn it down and it will go away.

So maybe try switching to an EBC, that or get a surge ported housing...

CanadianTSi said:

I can make my 50 trim surge when I have the Gain cranked up on my EBC, turn it down and it will go away.

So maybe try switching to an EBC, that or get a surge ported housing...

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I have tried a few different mbc's same with the result(turboxs,homemade,hallman)etc. Am going to try my friends forge mbc and see how that goes. I would love to get a surge housing however i have not seen anyone sell to4e comp housing with the surge ports. I called sbr about it and they said that because of the turbo it cannot be done. I called PTE about the problem and they told me that it was weird and they would call me back(never happened) so i have to call them back again tommorow and see what they suggest. I used to have a 50trim and never had issues with surging.

Why are you so bent on a to4e cover? Just upgrade to the to4s pro shroud cover that svr makes it should fit. I have a gt14(duall BB 56 trim) with the to4s pro shroud cover and it's beautiful and fitment isn't bad either.

Slippi84 said:

Why are you so bent on a to4e cover? Just upgrade to the to4s pro shroud cover that svr makes it should fit. I have a gt14(duall BB 56 trim) with the to4s pro shroud cover and it's beautiful and fitment isn't bad either.

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Am not bent on the to4e cover thats the one it came with. If i have to upgrade to a to4s i will do it but i really don't want to dent my water pipe. By the way who is SVR?

RavenX said:

Am not bent on the to4e cover thats the one it came with. If i have to upgrade to a to4s i will do it but i really don't want to dent my water pipe.

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Then you can just get the spacer. My bad it sounded like you were going threw a lot of trouble to get another to4e as I know that your turbo came with the to4e cover. Anyway a spacer for your exhaust manifold and a to4s pro shrous cover shoud take care of your problem

Slippi84 said:

Then you can just get the spacer. My bad it sounded like you were going threw a lot of trouble to get another to4e as I know that your turbo came with the to4e cover. Anyway a spacer for your exhaust manifold and a to4s pro shrous cover shoud take care of your problem

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Suggestion on places to get this?

I don't know anything about compressor surge, but if your last turbo did it as well, then you might want to look at other possible causes. Check the NABR tech archives there is a ton of good information in there.

GVR4592 said:

I don't know anything about compressor surge, but if your last turbo did it as well, then you might want to look at other possible causes. Check the NABR tech archives there is a ton of good information in there.

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My last turbo was the 50trim and it never surged. The one before that was the bullseye vtrim and it was the turbos fault for surging past 18psi because of the way the compressor map was it wasn't very forgiving like the 50trim. A handful of people experienced that and there was nothing you could do about it.

RavenX said:

Suggestion on places to get this?

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Even though they rape you with prices they seem to always have what I need....SBR!
They should have both the cover as they use it for turbo's like mine and they should have the spacer too.

You could make it with a nail file and a block of steel before sbr could shit it to your door.

GVR4592 said:

You could make it with a nail file and a block of steel before sbr could shit it to your door.

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That aint right!

While I think SBR rapes people with prices my ($7.95 shipping for a banjo bolt and two crush washers) they usualy ship out the same day I place my order if I do it early enough and it usualy takes about 3 days. Now keep in mind they're in PA and i'm in NJ so I could probably drive there and pick it up if I really wanted to which I don't. I ordered the Aremotive AFPR kit from Fuel injector clinic and my SBR GT30 oil return line from SBR both on good friday. My return line is on my turbo already and i talked with the guy from fuel injector clinic and my afpr will be shipped out tomorrow

I heard they have a new warehouse and are trying to get stuff shipped out faster, now if they fix their non-existent custoner service they might be worth dealing with.

Well it seems like no one understands why this is happening. I called PTE and they were as clueless as i was and told me they doubt a to4s housing would work because these turbos weren't made for to4s housing only to4e. So i'll try slowboy tommorow if not well i guess i'll just have to live with the problem.

I was thinking BOV not venting enough air but you have a tial 50mm so I guess that idea goes out the window.

I think it's irresponsible of PTE to not have a T04S anti-surge cover for a BB turbo, all they have to do is to machine it for that particular wheel. If they can machine the T04E, they should be able to do the same on a T04S. My SBR gt12 (56 trim) surged as well and I had to switch to a T04S, and yes it worked.

oldman said:

I think it's irresponsible of PTE to not have a T04S anti-surge cover for a BB turbo, all they have to do is to machine it for that particular wheel. If they can machine the T04E, they should be able to do the same on a T04S. My SBR gt12 (56 trim) surged as well and I had to switch to a T04S, and yes it worked.

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Yeah from all the researching i've been doing switching to the to4s is the only option but at least you confirmed it for me which is what i wanted from someone. I guess am going to have to call Slowboy and have them custom machine the housing to fit on that turbo considering no one has done this for these type of turbos yet.

Wow, I'm glad to have read this. I was strongly considering moving up to a 57 trim here shortly(well, conventional, not BB), but after hearing this, I'm not so sure. I hope you get it fixed soon.

BTW, is this an actual PTE 57? Or is it like a Slowboy G series 57?

GSntncT said:

Wow, I'm glad to have read this. I was strongly considering moving up to a 57 trim here shortly(well, conventional, not BB), but after hearing this, I'm not so sure. I hope you get it fixed soon.

BTW, is this an actual PTE 57? Or is it like a Slowboy G series 57?

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Its the actual PTE dual ball bearing 57trim that came out in December. Yeah am hoping it can get fixed otherwise am pretty much screwed and will just end up selling it and doing a full t3 setup or going FP all the way. I've been through 6 different turbo setups and its getting quite annoying.

Well i talked to slowboy and they told me they cannot make me a custom cast to4s housing for this turbo unless i bought in bulk which obviously i will not do. I called pretty much everywhere and all i got was a "No we can't do that". PTE has not responded back to me either so am kinda upset about my choices which are selling the turbo and having to buy a whole new turbo or sending the turbo back to PTE and have them upgrade it to a 60trim or a 60-1 and eat the price of the upgrade. For now i guess i'll have to turn down the boost as am afraid if the turbo keeps surging enough something will break SIGH.

RavenX said:

Am not bent on the to4e cover thats the one it came with. If i have to upgrade to a to4s i will do it but i really don't want to dent my water pipe. By the way who is SVR?

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Your To4e fits without denting the water pipe?

CanadianTSi said:

Your To4e fits without denting the water pipe?

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Yup sure does Heres a pic for you. Its a turbo water pipe as well not the nt one.

That's the weird part about all of these different 50 trim turbos. my SBR G50 required massive denting to the waterpipe, but with my new PTE BB5031 it clears it no problem.

PTE turbos fit without denting the water pipe, they designed it that way.

BTW the 60 trim tends to surge on some setups, just check the compressor map. The 60-1 doesn't surge, plus the 60-1 can be stuffed inside the S housing. Just make sure you don't try to use a small turbine wheel, use at least the stage 3 aka 76 trim.

pneumo said:

PTE turbos fit without denting the water pipe, they designed it that way.

BTW the 60 trim tends to surge on some setups, just check the compressor map. The 60-1 doesn't surge, plus the 60-1 can be stuffed inside the S housing. Just make sure you don't try to use a small turbine wheel, use at least the stage 3 aka 76 trim.

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Not always true. I had to dent mine in, no matter which way I tried rotating the compressor housing. I may be one of very few, but I indeed had to dent mine in.