Thread: How to know safe boost on pump gas?

Sure, but airflow does limit the amount of boost I can run. Seems my engine don't really like to make over 300lb ft of torque on pump 91. When I get a way of monitoring knock, I am going to see how far I can push it safely. I bet 18psi could be had without issues.

you need a precision accelerometer and vibration meter. they cost about $1500 though. I used to access to them at work. I am just going to use the stock knock sensor with my aem setup. I would love to have a vibration meter but they are not cheap and very fragile. the accelerometers tend to drift and need to be calibrated every 6 months with high use. We used them at work to make sure our blower motors were balanced.

BTW!

Got the wideband in today.

Seeing about 11.1 A/F ratio at full throttle @ 15psi. Should I go higher? heh..maybe 16psi.

One thing I've noticed is that my boost starts to fall off a bit to around 13psi by redline. I heard this could be related to a w/g spring that's too soft. The gain % on my EBC is around 25%, maybe I should keep raising it until I don't get so much fall off.

-G

Link: http://www.sr20-forum.com/turbo/25075-how-know-what-boost-level-safe-run.html

gomba I have to apologize. The way you worded your question the first time and the time frame it was posted (after a rash of recent newbie threads) had me thinking you were making a joke thread to poke fun at all the newbs.

I'm sorry for derailing your other thread. I could have sworn it was just a joke. :o:o:o:o:o