More boost than normal
10-03-2012, 08:55 AM
#26
Well, when I stop at a red light and idle in neutral, I hear this clunking noise 2-3 times while I'm stopped. It feels like it's coming right from under me and I only hear it after coming to a stop. Not sure if it's coming from the exhaust or something. I'm still trying to figure it out so I can word it better lol.
Also, while parked, idling, every now and then i feel my seat vibrate a little, as if the engine had a rough cycle(s) for a moment. I thought this could be normal w/ the fuel injectors and all.
Also, while parked, idling, every now and then i feel my seat vibrate a little, as if the engine had a rough cycle(s) for a moment. I thought this could be normal w/ the fuel injectors and all.
10-03-2012, 11:45 AM
#28
10-03-2012, 05:12 PM
#29
I always thought turbos loved cooler air, as cooler air is better? My logic behind that is from what people say which is why I didn't include why.
Gah my car has been too quiet lately.. Doesn't feel right
Gah my car has been too quiet lately.. Doesn't feel right
10-03-2012, 09:20 PM
#31
im guessing its because the cooler air is denser so its creating more pressure. since the hot air isnt as dense it needs to suck in more air to create a smaller amount of boost and with cooler air it sucks in less but creates more boost since the air is a bit heavier or something? im probably sounding like an idiot at this point. lol
10-04-2012, 07:46 AM
#32
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im guessing its because the cooler air is denser so its creating more pressure. since the hot air isnt as dense it needs to suck in more air to create a smaller amount of boost and with cooler air it sucks in less but creates more boost since the air is a bit heavier or something? im probably sounding like an idiot at this point. lol
I've seen SS/SC's do this when the intercooler pump takes a **** ..... I would just double check that you have flow at the filler neck. GMPP exhaust should have been 2.5'' ..... It's too bad cause it does sound great , I had touring on my SC and loved the sound.
10-04-2012, 09:44 AM
#33
and yes the gmpp does sound amazing...i want to see how much it would cost me to replace the piping to 2.5
10-04-2012, 08:56 PM
#35
lol yes was talking about that but i thought it did have something to do with it since when it went out last time my temps would skyrocket to 200+ driving like a grandpa.
my iats stay relatively low also. i dont remember the temps but yeah they dont get into that redzone or whatever much
my iats stay relatively low also. i dont remember the temps but yeah they dont get into that redzone or whatever much
10-04-2012, 09:04 PM
#36
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Ic pump might have a slight effect on coolant temps but not a direct effect. The only reason the coolant temps go up when the pump goes out is hotter air is entering the engine because of no intercooling. The coolant temp is not a good indicator of pump function though as several things can cause higher coolant temps. The only thing that points to a bad ic pump is the IAT2's
10-04-2012, 09:07 PM
#37
Ic pump might have a slight effect on coolant temps but not a direct effect. The only reason the coolant temps go up when the pump goes out is hotter air is entering the engine because of no intercooling. The coolant temp is not a good indicator of pump function though as several things can cause higher coolant temps. The only thing that points to a bad ic pump is the IAT2's
10-06-2012, 01:24 PM
#42
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What map sensor are you using and did you have to do any rewiring for it? The only way to read IAT2's (air in the intake manifold after the supercharger and laminova cores) is with the 2.5 bar LSJ Tmap sensor. Stock map doesn't read IAT2's but the MAF reads IAT's (air just being sucked in to the intake).
10-06-2012, 05:56 PM
#46
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You have to wire the 2.5 bar map to read it. That map doesn't plug right in because it has a 4 pin connector and stock only has a 3. One of the pins on that four pin connector is for IAT2. You have to cut the IAT wire on the MAF connector and connect it to the IAT2 wire on the map connector. Just remembered you are running the ZZP bolt on kit so you probably are running the 2 bar map
10-06-2012, 06:04 PM
#47
You have to wire the 2.5 bar map to read it. That map doesn't plug right in because it has a 4 pin connector and stock only has a 3. One of the pins on that four pin connector is for IAT2. You have to cut the IAT wire on the MAF connector and connect it to the IAT2 wire on the map connector. Just remembered you are running the ZZP bolt on kit so you probably are running the 2 bar map
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