Supercharger installed - I now have a few questions
05-23-2017, 07:59 AM
#1
Supercharger installed - I now have a few questions
Hey guys,
A few days ago I completed the install of my Procharger kit with canned tune.
It has been running great with the exception of a couple of things I'd like to run past you all:
1) Occasionally, and seemingly randomly during a medium-hard pull, the car will surge 3-4 times in quick succession at around 5k RPM - almost like a learner driver bunnyhopping the clutch. I don't have data logging installed on the car yet (just purchased zeitronix setup), but it almost feels like what I'd expect it to feel like if the BOV opened and closed a few times releasing all the boost. However, I cant say I recall hearing the usual BOV whoosh.
2) Smell. There is a new smell under the hood. I wish I could say it smells like melting plastic, but its a bit sweeter than that. I've checked everything and cannot see anything that has melted. However the procharger head unit makes contact with both the plastic part of the ABS pump and the silicone pipe that connects to the throttle body. I'm thinking maybe I should foil wrap these contact points?
3) Idle squeak. Rhythmic, like a belt or pulley. It happened for about 30 minutes on the first test drive, but hasn't happened since. So maybe I should chalk this up to everything settling in?
A few days ago I completed the install of my Procharger kit with canned tune.
It has been running great with the exception of a couple of things I'd like to run past you all:
1) Occasionally, and seemingly randomly during a medium-hard pull, the car will surge 3-4 times in quick succession at around 5k RPM - almost like a learner driver bunnyhopping the clutch. I don't have data logging installed on the car yet (just purchased zeitronix setup), but it almost feels like what I'd expect it to feel like if the BOV opened and closed a few times releasing all the boost. However, I cant say I recall hearing the usual BOV whoosh.
2) Smell. There is a new smell under the hood. I wish I could say it smells like melting plastic, but its a bit sweeter than that. I've checked everything and cannot see anything that has melted. However the procharger head unit makes contact with both the plastic part of the ABS pump and the silicone pipe that connects to the throttle body. I'm thinking maybe I should foil wrap these contact points?
3) Idle squeak. Rhythmic, like a belt or pulley. It happened for about 30 minutes on the first test drive, but hasn't happened since. So maybe I should chalk this up to everything settling in?
05-23-2017, 08:44 AM
#2
Drifting
I would get a custom tune and ensure that your pullies are properly aligned with a laser alignment tool. Good luck getting it sorted and be safe with the new power.
05-23-2017, 06:30 PM
#3
I'm Batman..
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Tech Contributor
Hey guys,
A few days ago I completed the install of my Procharger kit with canned tune.
It has been running great with the exception of a couple of things I'd like to run past you all:
1) Occasionally, and seemingly randomly during a medium-hard pull, the car will surge 3-4 times in quick succession at around 5k RPM - almost like a learner driver bunnyhopping the clutch. I don't have data logging installed on the car yet (just purchased zeitronix setup), but it almost feels like what I'd expect it to feel like if the BOV opened and closed a few times releasing all the boost. However, I cant say I recall hearing the usual BOV whoosh.
2) Smell. There is a new smell under the hood. I wish I could say it smells like melting plastic, but its a bit sweeter than that. I've checked everything and cannot see anything that has melted. However the procharger head unit makes contact with both the plastic part of the ABS pump and the silicone pipe that connects to the throttle body. I'm thinking maybe I should foil wrap these contact points?
3) Idle squeak. Rhythmic, like a belt or pulley. It happened for about 30 minutes on the first test drive, but hasn't happened since. So maybe I should chalk this up to everything settling in?
A few days ago I completed the install of my Procharger kit with canned tune.
It has been running great with the exception of a couple of things I'd like to run past you all:
1) Occasionally, and seemingly randomly during a medium-hard pull, the car will surge 3-4 times in quick succession at around 5k RPM - almost like a learner driver bunnyhopping the clutch. I don't have data logging installed on the car yet (just purchased zeitronix setup), but it almost feels like what I'd expect it to feel like if the BOV opened and closed a few times releasing all the boost. However, I cant say I recall hearing the usual BOV whoosh.
2) Smell. There is a new smell under the hood. I wish I could say it smells like melting plastic, but its a bit sweeter than that. I've checked everything and cannot see anything that has melted. However the procharger head unit makes contact with both the plastic part of the ABS pump and the silicone pipe that connects to the throttle body. I'm thinking maybe I should foil wrap these contact points?
3) Idle squeak. Rhythmic, like a belt or pulley. It happened for about 30 minutes on the first test drive, but hasn't happened since. So maybe I should chalk this up to everything settling in?
2. I can't remember if the Procharger kit requires you to drain the coolant, but it sounds to me like you may be smelling coolant. Coolant smells sweet kind of like pancakes syrup when it gets hot.
3. Yep.
05-27-2017, 02:01 PM
#4
Hey guys,
A few days ago I completed the install of my Procharger kit with canned tune.
It has been running great with the exception of a couple of things I'd like to run past you all:
1) Occasionally, and seemingly randomly during a medium-hard pull, the car will surge 3-4 times in quick succession at around 5k RPM - almost like a learner driver bunnyhopping the clutch. I don't have data logging installed on the car yet (just purchased zeitronix setup), but it almost feels like what I'd expect it to feel like if the BOV opened and closed a few times releasing all the boost. However, I cant say I recall hearing the usual BOV whoosh.
2) Smell. There is a new smell under the hood. I wish I could say it smells like melting plastic, but its a bit sweeter than that. I've checked everything and cannot see anything that has melted. However the procharger head unit makes contact with both the plastic part of the ABS pump and the silicone pipe that connects to the throttle body. I'm thinking maybe I should foil wrap these contact points?
3) Idle squeak. Rhythmic, like a belt or pulley. It happened for about 30 minutes on the first test drive, but hasn't happened since. So maybe I should chalk this up to everything settling in?
A few days ago I completed the install of my Procharger kit with canned tune.
It has been running great with the exception of a couple of things I'd like to run past you all:
1) Occasionally, and seemingly randomly during a medium-hard pull, the car will surge 3-4 times in quick succession at around 5k RPM - almost like a learner driver bunnyhopping the clutch. I don't have data logging installed on the car yet (just purchased zeitronix setup), but it almost feels like what I'd expect it to feel like if the BOV opened and closed a few times releasing all the boost. However, I cant say I recall hearing the usual BOV whoosh.
2) Smell. There is a new smell under the hood. I wish I could say it smells like melting plastic, but its a bit sweeter than that. I've checked everything and cannot see anything that has melted. However the procharger head unit makes contact with both the plastic part of the ABS pump and the silicone pipe that connects to the throttle body. I'm thinking maybe I should foil wrap these contact points?
3) Idle squeak. Rhythmic, like a belt or pulley. It happened for about 30 minutes on the first test drive, but hasn't happened since. So maybe I should chalk this up to everything settling in?
likely you got belt slip which would explain the surge. My car was absolutely perfect on the canned tune after we figured out my belt was slipping due to a seized tensioner.
05-27-2017, 02:05 PM
#5
Im not convinced that is what it is though as it only happens at part throttle (say 50%). If I floor it the car pulls like a freight train all the way to the red line. It feels a bit like the bov cant decide whether to be open or closed
05-29-2017, 11:50 AM
#6
Instructor
Not sure if this issue was the same, but I had the same "noise" from the tensioner. Boost was fine. Make sure you adjust the tensioner like the instructions say, tighten the tensioner until the first set of lines meet. I was afraid to do this because I thought I was going to break the adjusting screw but I called Procharger and they said to keep going. "Use a longer ratchet", so I did. The noise went away since the tensioner arm was barely pivoting. If you push on the belt with your thumb "sort of like a deflection test" you shouldn't be able to move the tensioner. That's how tight it will be.
Last edited by Max Bet; 05-29-2017 at 11:51 AM. Reason: Spelling
05-29-2017, 02:00 PM
#7
Drifting
Member Since: Oct 2013
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2018 C7 of Year Finalist
Just a warning... If your head unit is rubbing against your ABS... move your ABS so its not touching it. I didn't move it far enough when I installed my ECS kit and it ended up causing a line to burst or melt or something and I lost virtually all of my brakes while driving. Was very scary, luckily I didn't have many stops before I could get it to the dealer and the E-brake worked well.
05-30-2017, 12:56 PM
#8
how did you resolve the tensioner issue? Just disassemble and lube?
Im not convinced that is what it is though as it only happens at part throttle (say 50%). If I floor it the car pulls like a freight train all the way to the red line. It feels a bit like the bov cant decide whether to be open or closed
Im not convinced that is what it is though as it only happens at part throttle (say 50%). If I floor it the car pulls like a freight train all the way to the red line. It feels a bit like the bov cant decide whether to be open or closed
05-30-2017, 01:09 PM
#9
No I didn't know. Is it also normal for the car to buck when the valve is in this area of uncertainty?
05-30-2017, 03:57 PM
#10
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St. Jude Donor '15
No. Sounds more like either turbulence across the MAF if you're still using that or something not right with the driver demand tables in the tune, IMO.
Bypass valve closes around -2psi of "boost", FYI
Bypass valve closes around -2psi of "boost", FYI
Last edited by schpenxel; 05-30-2017 at 03:58 PM.
05-31-2017, 01:05 AM
#11
when I get it tuned remotely should I ask for it to tuned with speed density?
05-31-2017, 02:20 PM
#12
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St. Jude Donor '15
I'd see how tuner feels about it. It's easy enough to try and see if it helps and or he should be able to see if the MAF readings are jumping around a lot.
What year is your car?
What year is your car?
Last edited by schpenxel; 05-31-2017 at 02:20 PM.
05-31-2017, 02:42 PM
#13
05-31-2017, 02:54 PM
#14
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St. Jude Donor '15
SD is generally smoother if anything
Some of the later model years, 2017 I believe, won't make boost when in SD so you have to run a MAF. It may just be z06's effected, I can't remember offhand. Ecm basically closes the throttle after it sees a few psi of boost. That's why I was curious about the model year. Sooner or later we'll get access to whatever limit table is causing that to happen but as far as I know we haven't yet gotten there.
Only issue with SD is it sometimes isn't as consistent during larger temp/weather changes, though that can be compensated for easily enough if tuner knows how
Some of the later model years, 2017 I believe, won't make boost when in SD so you have to run a MAF. It may just be z06's effected, I can't remember offhand. Ecm basically closes the throttle after it sees a few psi of boost. That's why I was curious about the model year. Sooner or later we'll get access to whatever limit table is causing that to happen but as far as I know we haven't yet gotten there.
Only issue with SD is it sometimes isn't as consistent during larger temp/weather changes, though that can be compensated for easily enough if tuner knows how