Opinion Needed: Supercharger Pulley Swap for 3800 2
#2
04-21-2018, 06:28 AM
Be careful man.. You could literally pop your engine or melt a cylinder.. Theres a couple "precautionary" mods you should do in preparation..
#3
04-21-2018, 09:01 AM
Beyond that, when you are ready to start modding, there are lots of options for pulley sizes from a 3.6" down to a 2.55". The first question is, what supporting mods do you already have to be able to drop sizes, and second how much KR do you currently have?
#6
04-23-2018, 09:16 PM
5psi is on the low end of normal. Depends on a lot of factors though - blower wear, outside temps, etc.
Thinking more about 'lagging' boost, have you you looked at the bypass actuator and made sure it was operating correctly? I wonder if it has slipped out of position or if it's binding up during operation?
Thinking more about 'lagging' boost, have you you looked at the bypass actuator and made sure it was operating correctly? I wonder if it has slipped out of position or if it's binding up during operation?
#7
04-24-2018, 09:47 AM
When my car was stock, on a really hot day I could see as little as 5.5.....
Just for reference
Just for reference
#8
04-24-2018, 02:08 PM
Unplug the BBV solenoid and see if it drops even more. If not, bypass the solenoid and check again.
#9
04-25-2018, 07:28 AM
Completely forgot. I’ve asked so many people. I believe it’s the supercharger bypass line but there’s a line that starts in the front of the engine starting at what looks like a bypass and then wraps around to the alternator. Then to the back of the engine. Anyway. That line is cut and I haven’t been able to find a replacement for that. Let alone could I find someone that actually knows what it is. So if anyone knows what it is and where I can find it that would help. That might be the source of my issue for sure.
#10
04-25-2018, 09:27 PM
The vacuum line to the bbv? Lol, yeah, that's your problem if it's damaged.
I wouldn't mess with trying to get OEM line, just go to the parts store and get the right sized vacuum hose and some vacuum T's that match. No need for anything fancy.
I wouldn't mess with trying to get OEM line, just go to the parts store and get the right sized vacuum hose and some vacuum T's that match. No need for anything fancy.