Help with boost level

how much boost can a b20vtec handle, almost stock all it has done to it, is a race port job, 3 angle valve job, aebs IM and it will have either turboedit or chrome that imma tune with.
thanks a lot

well with stock internals, and depending what turbo u use maybe 7-9lbs not sure though, not good with b20s

7-9 Sounds about right. I would put a block gaurd in it. I had a block gaurd in my LS/VTEC and I was handling 10 lbs and sometimes 15 with no problems.

All of these random boost levels that people are throwing around mean absolutely nothing. It all depends on how big the turbo is and how much power you’ll be making. A certain boost pressure generally won’t blow up an engine(as long as it’s reasonable). Stuff breaks once you reach a certain amount of HP. I’m running 11psi on a 14b with a bone stock B18 with no problems. I’d be running more if I still wasn’t on the stock MAP sensor.

turbo

well the turbo will either be a 14b or a t3, and didnt wanna push it past 10lbs. jus wonderin if it’d be handle it. the guy who had the motor b4 me, was boosting 12-13 lbs daily on it and had no problems til he blew the head gasket, cause the guy who built the motor for him used a copper head gasket

I’ll put it this way…Like I said, I’ve been running a 14b at 11psi on a stock motor for around 4 months now. A friend has been doing the same for 4 YEARS with some really bad spikes and just recently had head gasket issues. Another friend has been running 11 psi on a 14b with a stock B18C1 for 2 years. Our motors are surprisingly durable to the torture we put them through.