Boost pressure on TT?

[Garryg]

Got the gauge fitted on Saturday and tonights really the first time I've had a chance to really check the turbo pressures.

The primary peaks about 7psi before dipping the secondary then peaks about 8psi? Not much difference really!

Anyone got any idea what they should be? I've had a few replies on another thread, but thought I'd start another to get more interest. Ideally I'd like to see a little more in the primary (& secondary)...I'm sure they could cope with a few extra psi without any problem..... I was hoping about 10 then 14? Do u think this is achievable?

Would it just be a case of fitting seperate boost taps and adjusting accordingly?

Cheers

[funkytown]

if its 7 & 8 or there abouts its on limp mode. Clear the cell codes and you should see closer to what your after.

Either pay the money for an expert to look at it, or let a Cs'er have a peak and give their opinion.

[agent]

Should be more like 10psi primary, 15psi secondary

[Garryg]

 agent said:

Should be more like 10psi primary, 15psi secondary

Bang on....10 then 14-15psi

Took it in to a subaru specialist today (Wingers Subshop, East Tamaki)...more for the knocking noise under hard acceleration. They gave it an upper engine clean and said to ensure it is run on 98...which I have been doing for the last few weeks. But still knocking??

They also checked the air filter (which was fine) and sent me on my way..with it still knocking! They have advised me to change the spark plugs!! What that will do to the knocking.. I don't know!

Looks like I will be having a few trips back to the garage before I get this resolved..but they did clarify the boost as 10 / 15psi!

I thought they would have taken it straight in and investigated? To me I'm just getting excuse after excuse and no resolution. It's quite clear with the boost issues along with the knocking I've got a problem.

Might try another garage...see what they think!!

[pharnos]

auto or manual?

here's a graph of some logging from standstill in an auto 1999

[Garryg]

2001 Aoto.