What Turbo's Are These, Confused About Part Numbers..

[TrikkBen]

Hi guys,

In the process of stripping down my GTR, to find out what I have and where improvements can be made. Stuck as to what turbos these are.

Firstly GT2560R. Have read they are re badged 2860's?

Does the 707160-0005 mean I have "-5's". If so why am I so down on power (306.5awkw) when considering its a fully built engine, 260/9.15 tomei cams, PFC, EBC bla bla etc... Could it be a poo tune?

Thanks for the input guys.

Ben

Edited February 25, 2012 by TrikkBen

[Moodles2]

They are -5's. That family used to be the GT28 series but Garrett for some reason renamed them (-5's, -9's, -7's etc) to GT25 series.

As for power, need more info: who tuned it (does the PFC actually have a tune on it or is it running a stock basemap), how much boost your running, dyno sheet with AFRs etc

[TrikkBen]

Tuned by RevZone (previous owner). Don't know how to tell if its a base map or tune, I would think it has a tune.. Max boost is 20psi/1.5bar. Dyno sheets do not have air/fuel on them..

[GTScotT]

That tag doesnt look genuine.. Anyone agree?

[TrikkBen]

That may explain the lack of power.... I was about 2 weeks off getting some brand new -5's... This is sorta good sorta bad news... Need to know if they're legit or what..?

[Moodles2]

I agree about the tag not looking genuine, the engraving on my -9s was nice and neat... looks like its been engraved with a soldering iron or something.

[TrikkBen]

Could I call Garrett and have them look up the serial?

[TrikkBen]

Could someone post a pic of what the plate should look like please?

[R31Nismoid]

Non genuine plate, no doubt about it.

Could be some backyard hybrid.

Only way to tell is send the turbos off and get all the wheels measured on both.

[TrikkBen]

Thanks for reply. Not something I can measure myself?

[dori34]

LOL @ back yard engraving. this is what a proper garrett turbo id tag should look like mate;

best option is to take it to a turbo specialist and get them to check it out so you know 100% what you're running, or ring RevZone and ask for details on the car??

[TrikkBen]

Woah...

I think I might work out what they are and stick them up for sale, I was going to change them anyway.. The seals are gone.

What would something like these be worth, provided I find out what they are and taking in to account they need seals?

Thanks for the help guys, had me baffled all weekend..

Ben

[GTScotT]

if they need seals they honestly arent worth much at all..

i think a rebuild with seals will start at a bare minimum of 400 each through hypergear, assuming nothing is damaged. the price could go up from there up to 800 each. realistically if they arent genuine its probably a waste anyway..

better to have a look here and buy brand new genuine units:

http://www.skylinesaustralia.com/forums/topic/229588-gtr-turbo-upgrades-garrett-gt2860r-5-7-9-10/

more expensive but you know what they say, do it once do it right

[TrikkBen]

I already plan it buy new ones. I ment how much would I put the on eBay etc. for?

I'm not keeping these as they don't seem to have the balls to make the power I want.

I will definitely buy new units, one unrelated question, may aswell ask while my thread is active. Would I have to change the actuators on the new -5's with the boost I'm running (1.5bar). I have a profec b ebc..? Do you normally upgrade the spring/actuator for 350-400kw's?

Edited February 26, 2012 by TrikkBen

[TrikkBen]

Got the rear turb off and the plate looks like the above genuine one... Could the front be a refurbed unit or something?

[dori34]

most likely, whats the condition of them both and do they both have the same size wheels and housings?

[TrikkBen]

Yer, both the same. Could both do with a rebuild.

I pulled he rear turbo off and may have found a problem? The actuator rod was not adjusted at all, so the WG is free floating by about 3mm. You can wiggle it around and lift it off the seat.... Surely thats not right as the front doesnt do it. Could this be a helpig cause of my lack of power?

Thanks

Ben

[Moodles2]

One turbo was probably doing all the work while the one wasn't doing much.