Turbine Wheel Out The Ass

[Bsa]

ok so I just finally got my car running sweet just got the new exhaust on and driving it home and the turbine wheel exploded. It's a rb25 turbo was ment to be high flowed not the case as it seems. My biggest worry now is it was high mounted could the bits of wheel go back into the block and cause damage? Also I'm now in need of a new turbo any suggestions and I want it to highmount as iv already got everything set up that way and yes I have read the rb20 forum but would still like suggestions/ advice.

My mods are

3 inch exhaust

35 mm turbosmart external gate

Stainless highmount

32 gtr cooler 2.5 inch piping

Tommi fpr

Walbro fuel pump

New hd clutch

And replaced every gasket on the motor and sensors

Will be putting in 550 injectors

And I'm getting a nistune once this is sorted

Help would be very apriciated

Thanks in advance

[GTSBoy]

Hi or lo mount won't make much difference as to whether any turbine fragments made it back inside. That's all due to the random acts of gas flow and whether any blades were released in the direction of the manifold flange.

Looking at the Hipergear thread, you'd be hard pressed to go past getting one of his. You'd probably be smart to try to get hold of another turbo with an OP6 housing on it, but they could hiflow yours quite successfully. ~$900 for mucho boost+flow.

[Bsa]

I already have one welded up to suite wastegate I might check that out then sounds good I'm only chasing 220 to 240 kw anywhere close and I'll be happy. I might just take the manifold off to be safe. What about a gt30r heard these are good for a 20 or even a td05 or 6 I was leaning more towards that option Thanks for the help

[kitto]

I'm only chasing 220 to 240 kw anywhere close and I'll be happy.

Hi flowed RB25 turbo is perfect for this. They are good for 240-250rwkw.

I might just take the manifold off to be safe.

Yep good idea

What about a gt30r heard these are good for a 20 or even a td05 or 6 I was leaning more towards that option Thanks for the help

Well you could... But your only chasing 240kw. The high flow will be cheaper, As said, $900 or so.

[Bsa]

I was just thinking about leaving some more head room incase I get over the 250 mark. I don't want to have to buy a turbo again to make more power I would like to install cams and gears later down the track to get a bit more out. I have my waste gate set to 17 psi and was thinking with a td05 I would get good power still and not loose to much response I'm not worried about lag its a 20 need lag to get good power. Also the rb turbos don't seen to suite the highmount to well very close to engine because of the flange. I would rather just do it right the first time and have it done then all I need is boost. I'm no expert I'm a metal fabricator not a mechanic so what would be my best option if I wanted to push 240 and up and please don't say buy a rb25 because it's not a option

[Bsa]

I pulled the turbo off today and stripped it the wheel has caused exssive damage to the op6 housing gouges and dints everywhere there was a lot of burnt oil in there as well so I'm thinking a big chunk can through and that's what caused this problem as it was only on 8 psi. Can the rear housing be re machined and used as a high flow so I can sell it? Compressor wheel is fine. Iv also put in a injury for a td05H-16g6 with a 8 cm housing t3 flanged would this be a good option for both response and power?

[N1 RB26]

go td06-20g and you would be up around the 250-270kw mark with stock internals and pretty much full boost by 4K but i think theres a tdo6L2-20g which is suppose to be a bit more responsive don't know how much by though

[Bsa]

That sounds good to me would it be better with the 10 or 8 cm housing

[N1 RB26]

8cm on the 20

[Bsa]

Ok thanks for the Help mate I also did a serch on the td06l2-20g and it seems that the only difference is the turbine wheel is a few mm smaller but compressor is that same would the results be similar I'm guessing it wound run out of puff faster that's all

Edited September 13, 2011 by Bsa

[N1 RB26]

well there you go that's the difference i just never bothered to look it up lol