Have you destroyed a turbo?

[Stock]

Hi, I am new to the forum and would like to know if anyone has destroyed their turbo on a Skyline? I have read a lot about not putting the boost over 12psi, but I am wondering if anyone has done this and caused damage, or whether it is just a myth. I know there has to be a limit at some point, is it 12psi or are there people out there running their stock R33 turbos at 14psi or higher?

What are your stories of disaster.

[predator]

Mine was running at 13psi quite happily turbo wise, although it was starting to ping a bit too much so had to wind it back to 12psi.

12psi I'd say is perfectly safe as long as you have a good tune and decent FMIC. My high boost has been that or 9 months or so with no adverse effects and some pretty hard driving occasionally. Depends whether its a series 1 or series 2 turbo.

As mine is a daily driver i often just run stock boost to and from places, so i wouldn't say i run 12psi all the time. People will also argue whether 10-11psi is more optimal in terms of overall performance too.

[bbenny]

12psi should be fine

I have been running my stockie at 16psi for a year without trouble (touch wood). but the general consensus is over 14psi is risky.

good luck!

[DAMQIK GTS-T]

I have a R33 Series 1 and have been running 14psi for around 2 1/2 years now. The only problem I have had is the turbo sucked in and ate the rubber bung that the car yard put on to block the Bov return hose when fitting the atmo venting BOV. The same turbo is still on and going strong.

[rb20-calais]

i have blown a standard rb20 turbo, first time i drove it i accidentally had the boost set to 30psi (was max thought it was set at stock) i had no guage and it went hard for about 5 secs.... then BOOM...... SHREEEEEEEK!!!

new turbo

evan

[Nrage33]

The previous owner of my car destroyed the stock turbo doing 15psi on his daily commutes to brisbane...tortured, replaced, and hi-flowed it in the end...saved me some big money

It runs 10psi now for daily driving, but can go up to 18psi, no sweat. Right now, that figure is a little too far fetched though

[YBSLO4]

Skylines have been found by a lot of people to make better, more 'useable' power on around 10-12psi. Note 'useable'... No point running more boost if it aint doing much or downgrading performance and reliability. The fact of the matter is if you are going to boost, you need to mod and free up the airflow so that it is actually worth boosting in the first place. You'll find obviously that if you run a stock skyline on say 12psi, then have another with a cooler, exhaust, filter and tuned on 8 psi it will run a heap better and harder than the 12psi stocky. Boost does not just = power.

[Cubes]

R33's really need an aftermarket ECU to take advantage or should I say unlock some decent power.

200rwkw isn't bad considering its a stock turbo.

The FMIC and ECU make a big difference to the R33's.

R32's pitty its not the same for the R32's.

Over 10-12psi the stock ECU starts doing strange power dip things.

[YBSLO4]

I aren't running a computer now with my big turbo, cooler, exhaust blah blah and it still runs pretty damn well considering, however am expected to pick up around 25rwkw from computer they reckon, so on about 15psi tuned they said i can look at around 235-240rwkw which aint too bad But yes they do need a computer to run well, without one they jsut eat fuel and run very rich. Not good on the wallet believe me ha ha.

[Doctor]

Yep. Did mine today @11psi.

[gtst lad]

Blown two here...one the standard tubro through tooo much boost.. and also a hybrid that really hurt due to not fitting a larger diameter oil feed pipe to the new turbo...:ouch

[Hiroshima Screamer]

what is the highest a standard GTS t can go boost wise ?

[Anquetil]

How can you actually tell what boost your running as my factory boost gauge is stuffed?

[predator]

... an aftermarket boost guage!

Even a cheapy Autometer, Sparco or something is better than the stock boost guage..