Low Psi, Need Help With Boost Options

[TotalEclipse97]

Hey i've got a '97 GST eclipse i've got k&N filter , no boost restrictor, i cut the dump tube, and i just installed upper intercooler pipes,lower intercooler pipes and 1g bov. i'm only getting a reading of 9psi and i've check all my pipes and i can't figure out what's up. my buddies got the same set up i do and he's getting 17-19psi? i've got catback exhaust too. help?

[KOU In3]

If you had no MBC and were hooked directly to the wastegate, you should not be seeing 16 psi. If you were, then your AVC-R couldn't lower it beneath that.

The AVC-R (or any boost controller) can only bleed off boost signal to the wastegate and raise the point at which it opens it. It can not lower it beneath what it will open at with the hose hooked directly to the wastegate actuator.

Having said that, do you have an MBC totaleclipse? You should be able to turn up the boost and see the results on your gauge.

However, I recently had a T25 that physicly would NOT boost above 12psi. I attribute it to 2 things in that case. A leaky BOV (2G plastic POS) and a tired T-25.

I should have a spare T-25 if you are in need but I'd check for boost leaks and the like before throwing parts money at it personally.