The 2H/12H-T/1HZ/1HD-T/1HD-FT Gturbo Alternative Tech Thread (5 Viewers)

[Rob1983]

He didn't mention any failure issues at the time. He's well aware of the need for reliability, I'll talk to him again and mention this turbine sticking issue and see if he's heard or seen anything like it. His original step up plan involved a Garrett roller bearing core, and custom wheels, all in a CT26 housing. The whole purpose of this is to come up with a top performing bolt in option with excellent reliability at a decent price point. He was blown away when I told him how much gturbos were selling for as he's performed post mortem examinations on a few to determine cause of failure outside of warranty. That's what has encouraged him to work on developing a better platform, but it has to be bolt on and reliable. The market for complete custom turbo setups is rather limited compared to the swap and go side

 

[mudgudgeon]

As if the catastrophic fail isn't bad enough you also get to eat the over priced turbo.

Wow, that would suck! add to this the risk of a busted turbo leading to engine damage through running away on its on oil, or shrapnel into the intake.
A turbo failure is bad enough, having the engine taken out to lunch too really sucks!

 

[gerg]

Yeah loosing the motor was my thought too. From the pics it looked like the turbine wheel separated from the shaft. That would be a bonding process issue I'm guessing? Perhaps metallurgy? It was on their new super duper ultra light high performance model of Cource. For me it was a deal breaker to see that, not to mention they are of the more expensive turbos on the market.

 

[Mcreight911]

I had been told this was a problem with the early models but has since been rectified . But was second hand info not from BW rep .

 

[gerg]

I have to believe that they did address it, but the warrenty issue was a problem too. For such an expensive piece yould think they'd bend over backwards to protect their reputation. Seemed to be quite the opposite. This is also second hand info too but it help choosing a different maker a lot easier.

 

[Dougal]

I had been told this was a problem with the early models but has since been rectified . But was second hand info not from BW rep .

Have a read: Borg Warner EFR 6258 Turbo

Borg warner techs claimed overspeed (it wasn't) and threw up a lot of absolute rubbish reasons why it wasn't their fault. You'll notice other posters in the same thread asking about failures before this one broke.

 

[Mcreight911]

I agree. Nothing worse being stuck in the middle of no where with a blown turbo . When I was playing with non factory vnt stuff I had a few failures so started carrying a spare with me . I got confident after a while and stopped . A week later boom snapped shaft, left me sitting on the side of the road.
Lol got to love testing.

Can't beat simplicity

 

[gerg]

Wow that is an eyeful on the board. So guys have put undersized turbines with absolutely miniscule compressors on engines on this forum and over speed them like crazy and haven't had the turbines come apart. Granted those little turbos are most likely all dead, but I bet their turbines didn't disintegrate! Other than blow your bearings out and contact the housings how on earth can you abuse a turbo enough to cause it to catastrophically fail like that? Turbine disintegrate....wtf?

 

[Dougal]

I agree. Nothing worse being stuck in the middle of no where with a blown turbo . When I was playing with non factory vnt stuff I had a few failures so started carrying a spare with me . I got confident after a while and stopped . A week later boom snapped shaft, left me sitting on the side of the road.
Lol got to love testing.

Can't beat simplicity

You know about straight shaft vs slender shaft for VNT?

 

[Mcreight911]

I do now . But it wasn't the only factor that contributed to the failier

 

[Dougal]

I do now . But it wasn't the only factor that contributed to the failier

I've been given two VNT's which had slender shaft failure. The only reusable part was the vacuum actuator!

 

[Mcreight911]

I've been given two VNT's which had slender shaft failure. The only reusable part was the vacuum actuator!

Fragile little things.

 

[Jaronimo]

this thread is awesome
what i am doing is a basic gturbo grunter upgrade and wanted to see what poeple have done to upgrade the 90 deg elbow from the hdj 100 aircleaner to the turbo, thats nice quite a bit bigger internally, i was thinking welding up a few stainless 90 deg bends in 2.75in

 

[serenity]

this thread is awesome
what i am doing is a basic gturbo grunter upgrade and wanted to see what poeple have done to upgrade the 90 deg elbow from the hdj 100 aircleaner to the turbo, thats nice quite a bit bigger internally, i was thinking welding up a few stainless 90 deg bends in 2.75in

Check out the intake mods thread for info on that sort of work. The "Official" 1HZ/1HD-T/1HD-FT Airbox/Intake Mod Thread

 

[Rob1983]

Spoke to him today, he said that yes, bw had issues when the efrs were first released with turbine failures, but this has been sorted out now, he hasn't had any problems since they fixed things up. He's thinking the 6758 will be a suitable platform for what we are trying to achieve

 

[gerg]

What was the issue that they sorted out?

 

[Rob1983]

The turbine wheel failing

 

[gerg]

Hah!.... I was sort of meaning what in particular caused the fail in the first place that "they" were able to sort out. If it truely was over speed they wouldn't have any influence on that as its a user driven issue. Perhaps they switched to a different Chinese factory with better quality control?

 

[Rob1983]

He said it was a manufacturing issue. Maybe that's it! After all what isn't made in China these days?

 

[ForealBoreal]

On Gturbos Facebook page they are testing VNTs should be good if it's coming from him