Need Some Advice, With My Turbo Situation

[tridentt150v]

3.6 to 4 kg is normal oil pressure at anything over say 2500rpm.

You will see 4 on a cold day and 3.6 on a hot one. It will spike at 4.5 to 6 on a cold day when you first start it up. It will drop to around 2-3 kg at idle at normal operating temp.

Well mine does anyway.

One thing I don't get is why would anyone get a turbo hiflowed for say $1300 when you can buy a Garrett 3071/3076 at $1600. Granted there is a bit of mucking about with oil and water lines, but it is a new double ball bearing bigger hp unit. you can sell your std turbo for $3-400 and help offset the changeover. I did the hiflow thing to, but realised the error of my ways so sold it while I could. I'm not regretting it at all, the turbo i brought allowed me to 'grow' the car if and when I wanted to.

My advise, get the hiflow repaired under warranty etc and sell, sell, sell..........buy a KKR or Garrett for the same $$$$ or close to it. You'll be streets ahead [yeah I know, easy to say, but do it anyway].

[Viper_r32]

  tridentt150v said:

3.6 to 4 kg is normal oil pressure at anything over say 2500rpm.

You will see 4 on a cold day and 3.6 on a hot one. It will spike at 4.5 to 6 on a cold day when you first start it up. It will drop to around 2-3 kg at idle at normal operating temp.

Well mine does anyway.

One thing I don't get is why would anyone get a turbo hiflowed for say $1300 when you can buy a Garrett 3071/3076 at $1600. Granted there is a bit of mucking about with oil and water lines, but it is a new double ball bearing bigger hp unit. you can sell your std turbo for $3-400 and help offset the changeover. I did the hiflow thing to, but realised the error of my ways so sold it while I could. I'm not regretting it at all, the turbo i brought allowed me to 'grow' the car if and when I wanted to.

My advise, get the hiflow repaired under warranty etc and sell, sell, sell..........buy a KKR or Garrett for the same $$$$ or close to it. You'll be streets ahead [yeah I know, easy to say, but do it anyway].

It was something I thought about at first, but to be honest it was never about wanting to get more power. I wanted more response. And I feared going to a bigger turbo because I didn't want to loose power at low rpm. After I had the turbo hiflowed the first time cef11e drove the car he got jealous because my turbo came on boost allot earlier and produced almost as much power as his rb25 high flow. I remember his exact words when he said the main difference between my turbo and his was he had more rear wheel spin.

I love the response and power the my turbo has and in that respect I’m happy with it, and the funny thing is that I’ve never run any more than 16psi into it, and it’s supposed to be able to handle 25-30psi according to the turbo company. Only prob is my engine wouldn’t last long.

But after all this muck around I have been considering doing a complete engine re-build. Trojan gave me a ruff quote of between 5-6 grand, so I may go a head with doing that early next year. Now that I finally have a full time job I should be able to afford it.

And don’t tell me that I should swap it for an RB25. Yes I know It produces more power more torque yada yada yada, I just love the feel of the RB20. I would only consider possibly swapping it for an RB26, but trying to find one in like new condition would be difficult.

[Viper_r32]

hear are some dyno graphs to show what i went from with the stock turbo to once i had it hi flowed.

the new graph was running 16psi

Edited December 5, 2007 by Viper_r32

[mjfawke]

So what core was this hi-flowed turbo built on?

Boring trivia - according to article in Zoom a couple of years ago, Gibson Motorsport bought their own turbo balancing gear because the originally supplied turbos kept on blowing up. Then I found somewhere else that one of the big names in Aus had been supplying the turbos to Gibson. I'm assuming this means that the supplied turbo's weren't up to scratch and were causing their turbo failures in the early days before they started doing them in-house at GMS.

[Viper_r32]

  mjfawke said:

So what core was this hi-flowed turbo built on?

Boring trivia - according to article in Zoom a couple of years ago, Gibson Motorsport bought their own turbo balancing gear because the originally supplied turbos kept on blowing up. Then I found somewhere else that one of the big names in Aus had been supplying the turbos to Gibson. I'm assuming this means that the supplied turbo's weren't up to scratch and were causing their turbo failures in the early days before they started doing them in-house at GMS.

all i know is that the parts are supposedly provided buy Trust/GReady

[tridentt150v]

  Viper_r32 said:

It was something I thought about at first, but to be honest it was never about wanting to get more power. I wanted more response. And I feared going to a bigger turbo because I didn't want to loose power at low rpm. After I had the turbo hiflowed the first time cef11e drove the car he got jealous because my turbo came on boost allot earlier and produced almost as much power as his rb25 high flow. I remember his exact words when he said the main difference between my turbo and his was he had more rear wheel spin.

I love the response and power the my turbo has and in that respect I’m happy with it, and the funny thing is that I’ve never run any more than 16psi into it, and it’s supposed to be able to handle 25-30psi according to the turbo company. Only prob is my engine wouldn’t last long.

But after all this muck around I have been considering doing a complete engine re-build. Trojan gave me a ruff quote of between 5-6 grand, so I may go a head with doing that early next year. Now that I finally have a full time job I should be able to afford it.

And don’t tell me that I should swap it for an RB25. Yes I know It produces more power more torque yada yada yada, I just love the feel of the RB20. I would only consider possibly swapping it for an RB26, but trying to find one in like new condition would be difficult.

I wasn't advocating big hp units, you can get a smaller KKR380 at a rrp of $800, and it does everything your hiflow does BUT its new - everything is new. And there are other brands out there that are sub $1k, Biagio, Hypergear etc.

The day of the hiflow is dead!!! sell it while it is still worth something and ppl still want one.

[mjfawke]

  Viper_r32 said:

all i know is that the parts are supposedly provided buy Trust/GReady

Hmmm.... went back looking at this, and as far as I can tell all of the Trust & GReddy kits are plain bush, not ball bearing. Are you absolutely sure you have a ball bearing core?

Edited December 14, 2007 by mjfawke

[hypergear]

Any way refer to the topic. Ball bearing turbos doesn't like dirty oil, doesn't really means that you oil's not dirty if you do your 3000KM oil service. the dirt (sand alike particals) can also forumed if your piston rings has too much blow by or if the owners before you used cheap oil or didn't service it on time. It is a very good idea to run a in line oil filter with ball bearing turbos on older engines. You can get them from Norden and Pirtek. They are generially $200.