Brand new 20G, should I be concerned?

[90turbotsi]

I just picked up a brand new TDO6 20G for one of my cars today. It is most certainly brand new and never even test fitted up. The question is it does have a bit of side to side play... now I know its never seen oil and im sure will tighten up with oil in it. I just want to make sure I shouldnt worry about this...maybe im paranoid but you guys know where im coming from here. Any input would be great

 

[98evoIIIpwr]

It's not abnormal for a new turbo to have a SLIGHT bit of shaft play. If your truly concerned you can have it checked.

 

[Stapl3]

Is there a line etched on the compressor shaft/nut?

 

[90turbotsi]

Do you mean a bit shaved off 1 side of the nut?? (to balance it), if so yes

 

[prostreetdsmx1]

lots of turbos are like that usually once you put the oil through it you'll be all set bud. nothing to worry about.

 

[90turbotsi]

Thanks for the reply, its just when spending good money for a new turbo and all the crap I went through with my 5,000 mile timiming belt going out taking out my ferreas, cams and pistons... I want to make sure everythings good to go this time around.

I figured since its never seen oil or anything I shouldnt worry too much

 

[dnhieu]

im sure you already know this BUT im gonna say it for your turbo's sake and your sake if you dont know it.


besure to prim the turbo before starting the car!

 

[Stapl3]

Do you mean a bit shaved off 1 side of the nut?? (to balance it), if so yes

No, I mean a line scribed into the shaft and nut. Showing it was probably rebuilt improperly.

 

[GVR4592]

You can pour some oil into the bearing housing and slowly spin the wheel by hand and it will tighten up a lot.

 

[sleestack]

No, I mean a line scribed into the shaft and nut. Showing it was probably rebuilt improperly.

How does that indicate it was built improperly?

Radial (up/down, left/right) should be at least .018" but no more than .022", wheel should move just not enough to allow the compressor wheel to contact the housings if spun
Axial (in/out) should be no more than .002" should barely be able to feel it.

 

[Stapl3]

I said it probably would be.

I've bought 3 "new" turbos in the internet and they were all rebuilt by people just scribing a line on it in hopes it's still in balance when put back together. None were.

 

[sleestack]

Ok, cause all the turbos that leave here (unless a factory box turbo) will have lines etched in the nut to indicate they are phased correctly with the shaft.

 

[Stapl3]

He said it was "brand new" and it "does have a bit of side to side play", I'm trying to figure it if it is infact brand new or rebuilt. If it is rebuilt and "does have a bit of side to side play", that probably would indicate it was done poorly. They way im reading it is there's alot of play, not just a very very little bit.

 

[MyBeatGSX]

im sure you already know this BUT im gonna say it for your turbo's sake and your sake if you dont know it.


besure to prim the turbo before starting the car!

I wish someone had told me that. What's the big deal? It takes like 0.00001 second for the oil from the line to hit it anyway, it probably barely even finishes 1 revolution.


To the OP, my brand new E3 had a decent amount of side to side play. After 10,000 miles it has none in any direction. I wouldn't worry about it.

 

[90turbotsi]

The turbo is in fact new, purchased from a reputable company on here you all know (I dont want this issue to talk down about them so I will choose to leave that out)

Its new new not rebuilt at all. NO oil in it at all so thats what I figured was the culprit of the shaft play. I am more then aware the turbo needs to be primed, thanks for mentioning it tho (I always do).

Below are pics of the turbo to show its condition. Im going to put it on this weekend, should be a good overall driver setup... I may remove the internal gate for a 38mm tial but im not sure yet. I just wanted to confirm the play would clear up with oil and some miles.

thanks again

 

[exiletalon]

thats a nice turbo, make sure you prime, my friend forgot and had to replace it in 5k miles, so he was pissed, that looks like the forced performance 20g, looks good.

 

[Denji]

Every turbo i have seen has some small amount of shaft play even after oiled. My friend "frmadig" on here has a 20g i helped him put in and another friend of mine had me install an evo III 16g. Both had noticeable amounts of shaft play after installation including proper priming etc, but definitely tightened up from before doing so. I didnt measure the endplay on either, but they were both new from very reputable companies, so i would say that the play you feel is very probably normal, I thought the same thing when i felt those two turbos.

 

[90turbotsi]

yea I think it will work out pretty well... I just want a nice overall driver with sufficient enough power and im sure this turbo can do it. My 1G is my race car with its 3065

I need to decide whether to keep the internal gate or if I should go Tial 38mm for it. What do you guys think? Since its my driver I was thinking Tial 38 with an 02 that reroutes the external gates dump or just leave the internal gate on it as it currently sits. Then again I can always do this later if I have boost problems.

 

[Denji]

my friend with the 20g has no problem with boost creep or spike and he has a VERY free flowing exhaust. Personally, I would say run it as is unless you come into a problem, which from my experience its not one (even at like 15psi).

 

[SilverMitsu]

thats because 15psi is nothing on the 20g

 

[daren_p]

thats because 15psi is nothing on the 20g

Are you saying he probably doesn't creep because he is only running 15 psi? If so the lower boost you run the more creep becomes aparent, for example if your running 14 psi & the turbo creeps to 18, well set the boost at 18 and guess what?, no creep. Or are you talking about something else?

That 20g looks great, don't think its FP as someone has mentioned because they usually have their logo stamped somewhere (unless it not visible in the pic). What kind of comp cover is that & what size is the inlet 3"? Do you mind mentioning the vendor as there isn't any issues with this turbo, std thrust bearing need side to side shaft play to allow oil to coat the areas (otherwise you are going to have metal on metal contact) This is completely normal & all std bearing turbos will be like this. You only have an issue if it actually contacts the comp cover without any oil. Once it's primed with oil it will tighten up & side to side play will be minimal. Keep us updated on the kind of flow you are seeing out of it

 

[90turbotsi]

My intentions are 18 or so street so unless boost control poses an issues I will attempt to run the internal gate. The comp cover is the TD06 version, same as on the FP green... its a 3 inch opening. The turbo is not actually a FP model its a SBR TD06 20G. I just did not want to talk bad about them or jump to conclusions until I was SURE of the turbo and its condition! You can go to SBR's site and look for it, its not a cheap model at +$1100. Personally if I did not get a good deal on the unit I would never have considered that much money for a 20G, oh well thats my opinion tho.
I just had to redo a lot of crap on my car due to my timing belt (OEM) screwing me over at 4-5K on my 6 bolt swap... bye bye built head with ferreas. I guess the negative should be compensated by this over the 16G I had in there.