9000freak
Posts: 1
Score: 0
Joined: 11/14/2007
Status: offline
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I had a 95' SAAB 9000 cse 2.3T for around a year and a half. During that time, I did my share of tuning to it. I found through experience that it is not only boost that will give you power. When cranking the boost up near the 18psi cutoff, you will definately feel an increase in power. However, you may blow your headgasket in the process. I had this happen to me on a brand new headgasket less than 6 months old.
I also know through experience that to get that kind of boost out of the turbocharger, you bypassed the APC valve on top of the radiator. This renders T5 (trionic 5, the engine management system) helpless if you get a boost spike, you use inferior gasoline (causes pinging, something t5 detects and corrects) or a vaccum line goes bad somewhere. All three can cause severe engine damage if they are not carefully watched.
Tuning by pumping the boost alone is the wrong way to do it. You should get a remapped ecu and upgrade the hardware. This will be more reliable in the long run, even if it costs more now
BTW CS, CSE's light pressure and full pressure turbos (lpt, fpt) used a garrett t25 turbocharger
The AERO got a mitsubishi TD-04 turbocharger that was more reliable and put out more boost up to redline in the stock form, despite the fact that it took longer to spool up.
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Printable Version
safe boost... - 
RE: safe boost... - 
