General Supercharger Thread

Yes!!!!!! Sounds badass!

 

Very surprised especially no muffler lol. Took the wife to pick Berrys. Closed the windows turned the radio on with the ac normal drive. She had no idea lol win win

 

mounted my boost gauge, went with AEM X-series gauge. she's reading negative 29 on idle haha and negative 24 on wot...vacuum leak? bad gauge? bad sensor?
i dont feel lost in power

 

Where did you hook up the boost gauge's line to?

 

please tell me i just did it wrong

 

Where's the other end of the T going, the FPR?

 

what does fpr mean? sorry im bad with acronyms. not sure where its connected to. but it does to the other side of the supercharger

 

Fuel pressure regulator, stock one is on the passenger side fuel rail.

 

It can be seen here, silver with blue-painted bolts, in the middle of the picture with the small vacuum line attached:

 

okay yea it still goes there then

 

That's correct then, not sure why you would be reading vacuum at higher RPM...maybe the sensor is faulty.

 

thats what i thought so too. so my boost sensor is T'd into that line but the hose is like 1 foot long and i have the boost sensor zip tied by the ABS module. checked the house for kinks, checked for leaks...nothing...

 

I can see the bypass valve has a port not plugged?

 

That's how it's supposed to be...

@50Shades , looking at your last picture, I just noticed the small hole on the intake tube, does that go through, or it is sealed?

 

yup bypass supposed to look like that.
and wait good catch! let me double check now!

 

nope its all sealed. black plastic thing covering it

 

Try plugging off the other side of the T that goes to the regulator (or remove that whole thing and just run a hose between the gauge and blower), so it's only the boost gauge hooked up and see what it reads.

 

its not gonna mess up anything? idk schematics and stuff but why is the boost line connected to the fpr? haha il try that. thank you!

 

Same gauges. Reading ~-20 idle and about +10 near WOT. Though haven't gone full WOT yet.

 

Well you'd ideally have it connected, and if not to the boost then to the intake vacuum side, but just do it for a quick test to see if the gauge is working or if the issue is a leak in your lines.

 

Finally cleared all codes including Evap which is usually the last to clear on my system.

 

oh seee thats what i was expecting!!

 

great idea! haha definitely not gonna boost. just idle

 

same gauge

-18 at idle
-10 at hwy cruise (62mph)
+7 at deep throttle.

 

Can probably figure it out just blipping the throttle in the driveway. The highest reading you got of -20 is barely above idle level vacuum, so should be clear pretty fast if simplifying the line setup fixed it or not.

 

i havent done your method yet. gonna ear breakfats real quick. but yea idle, its constanly at -29. maxed.
wot doing a pull, it went to -24 after like 5k rpms haha. no loss in power or anything. but then again, would a tiny vacuum leak be noticeable?

 

tried your method. still reading the same haha. direct line connection to the port

 

Well I'd say that answers that pretty well, assuming the supercharger port is clear which seems like a fair assumption, I'd go with the sensor or gauge then.

I had bought a cheap like $10 analog gauge to cross reference my boost gauge early on and make sure it was fairly accurate (just ran the boost line through the window). You could do that just to verify it is the AEM fucked up before you try to warranty it. Food for thought.

 

yes sir exactly my next steps! thank you for your help so far, luckily autozone is 5 mins away from me haha