2.0L LSJ Performance Tech 205hp Supercharged SS tuner version. 200 lb-ft of torque.

good results from 3" cai

Thread Tools
 
Search this Thread
 
Old Jul 15, 2010 | 08:05 PM
  #1  
startingline05's Avatar
Thread Starter
Senior Member
iTrader: (3)
 
Joined: 11-14-07
Posts: 2,712
Likes: 1
From: Hinesville ga
good results from 3" cai

i went and ordered the 3" cai from zzp sense i have the tvs ordered and coming in. well the cai came in today so i figured i would just throw it on to see what it could do. well my boost is normally around 16psi and from putting the cai on it was reading 19psi. i had the k&n on before but something must have deff been wrong with it or that 3"cai is just a beast. i just wanted to share that and to see if anyone else has had good results from putting one on.
Reply
Old Jul 15, 2010 | 08:07 PM
  #2  
Hockeyman's Avatar
Senior Member
iTrader: (4)
 
Joined: 08-10-07
Posts: 5,624
Likes: 8
From: DFW
that is not normal, you could potentially lose boost because of less restriction when using a 3" CAI.
Reply
Old Jul 15, 2010 | 08:36 PM
  #3  
startingline05's Avatar
Thread Starter
Senior Member
iTrader: (3)
 
Joined: 11-14-07
Posts: 2,712
Likes: 1
From: Hinesville ga
thats the same thing i was thinking, but u know im not gonna complain lol
Reply
Old Jul 15, 2010 | 09:38 PM
  #4  
stonny9's Avatar
Senior Member
 
Joined: 06-27-05
Posts: 2,057
Likes: 0
From: southeast florida
Originally Posted by Hockeyman
that is not normal, you could potentially lose boost because of less restriction when using a 3" CAI.

that is incorrect. Your intake before the supercharger is under vacuum also known as suction. A bigger intake would mean less restriction to an extent so that definitely vouse be the source of his increased boost.

The boost sensor is not in the intake and is after the supercharger.
Reply
Old Jul 15, 2010 | 10:47 PM
  #5  
Hockeyman's Avatar
Senior Member
iTrader: (4)
 
Joined: 08-10-07
Posts: 5,624
Likes: 8
From: DFW
There is no way an intake can cause a 3lb increase though
Reply
Old Jul 15, 2010 | 11:30 PM
  #6  
startingline05's Avatar
Thread Starter
Senior Member
iTrader: (3)
 
Joined: 11-14-07
Posts: 2,712
Likes: 1
From: Hinesville ga
well looks like there is then, cause it happened
Reply
Old Jul 15, 2010 | 11:37 PM
  #7  
CobaltSS89's Avatar
Senior Member
 
Joined: 03-30-09
Posts: 2,728
Likes: 0
From: Nashville, TN
Sweet, makes me wanna get one. How much was it j/w??
Reply
Old Jul 15, 2010 | 11:42 PM
  #8  
EXsoccer1921's Avatar
Senior Member
Platinum Member
iTrader: (14)
 
Joined: 05-04-08
Posts: 36,934
Likes: 2
From: The 405
all i noticed with my 3" was sound..
Reply
Old Jul 15, 2010 | 11:45 PM
  #9  
Bluelightning's Avatar
Got Bewst?
iTrader: (8)
 
Joined: 03-16-10
Posts: 10,948
Likes: 33
From: Winnipeg, Manitoba
Originally Posted by EXsoccer1921
all i noticed with my 3" was sound..
Agreed. You aint gonna get 3psi from an intake.
Reply
Old Jul 15, 2010 | 11:52 PM
  #10  
csementuh's Avatar
Senior Member
iTrader: (18)
 
Joined: 12-20-07
Posts: 3,055
Likes: 0
From: Jeannette, PA
The 'boost sensor' is the MAP sensor in the intake manifold. You didn't say you tuned for the change. That means your MAF scaling, VE table, etc are skewed pretty bad. Like 15% probably. That could be causing the PCM to think it's getting a whole lot more airflow that it really is. That is a slight possible explanation.

The stock electric boost gauge is inaccurate. A mechanical gauge would likely not show a gain. Another explanation.

Point in case, the intake should have no increase or decrease on your boost. Exhaust, headwork, cams, pulleys, blowers, etc, etc would increase or decrease your airflow (restrictions) and hence increase or decrease 'boost'.

Good luck with the TVS build! They're a lot of fun!
Reply
Old Jul 16, 2010 | 12:04 AM
  #11  
startingline05's Avatar
Thread Starter
Senior Member
iTrader: (3)
 
Joined: 11-14-07
Posts: 2,712
Likes: 1
From: Hinesville ga
Originally Posted by csementuh
The 'boost sensor' is the MAP sensor in the intake manifold. You didn't say you tuned for the change. That means your MAF scaling, VE table, etc are skewed pretty bad. Like 15% probably. That could be causing the PCM to think it's getting a whole lot more airflow that it really is. That is a slight possible explanation.

The stock electric boost gauge is inaccurate. A mechanical gauge would likely not show a gain. Another explanation.

Point in case, the intake should have no increase or decrease on your boost. Exhaust, headwork, cams, pulleys, blowers, etc, etc would increase or decrease your airflow (restrictions) and hence increase or decrease 'boost'.

Good luck with the TVS build! They're a lot of fun!
well i got rid of the stock boost gauge some time ago, i didnt trust it. but electric gauge is close cause i pulled up the boost on my intercepter gauge as well and its probably .25psi off. the only reasons i can think of is the k&n intake i had on the car before was just ruined and in bad shape.

and thanks, i cant wait to get it in and start messing with it
Reply
Old Jul 16, 2010 | 12:07 AM
  #12  
Bl4des's Avatar
Senior Member
iTrader: (4)
 
Joined: 12-28-07
Posts: 2,931
Likes: 1
From: West Milford, NJ
the interceptor and stock gauge gets the reading from the same place
Reply
Old Jul 16, 2010 | 12:20 AM
  #13  
startingline05's Avatar
Thread Starter
Senior Member
iTrader: (3)
 
Joined: 11-14-07
Posts: 2,712
Likes: 1
From: Hinesville ga
hmmm...maybe i worded that alittle wrong i pulled up the boost on the interceptor and compared it to my boost gauge which is no longer the stock one, its tapped into the boost line
Reply
Old Jul 16, 2010 | 12:22 AM
  #14  
csementuh's Avatar
Senior Member
iTrader: (18)
 
Joined: 12-20-07
Posts: 3,055
Likes: 0
From: Jeannette, PA
The reason is because they are both electric boost gauges. They are taking a reading from the car's sensors and not from itself. The difference would be caused by latency in the OBDII bus.

You need a mechanical boost gauge to get a pretty accurate boost reading. Most gauges in these cars don't respond fast enough. You'll hit the rev limiter before the tach says so lol.

Something like this... http://www.allecotec.com/product_inf...roducts_id=145
Reply
Old Jul 16, 2010 | 01:03 AM
  #15  
startingline05's Avatar
Thread Starter
Senior Member
iTrader: (3)
 
Joined: 11-14-07
Posts: 2,712
Likes: 1
From: Hinesville ga
Originally Posted by csementuh
The reason is because they are both electric boost gauges. They are taking a reading from the car's sensors and not from itself. The difference would be caused by latency in the OBDII bus.

You need a mechanical boost gauge to get a pretty accurate boost reading. Most gauges in these cars don't respond fast enough. You'll hit the rev limiter before the tach says so lol.

Something like this... http://www.allecotec.com/product_inf...roducts_id=145
lol i have noticed that on the tach haha.....or it could be my horrible driving. but i do have a mechanical boost gauge, thats what i was comparing the readings with to my interceptor gauge

but damn i wish i would have seen that price before i spent around 200 on my boost gauge, u know where to get a cheap a/f gauge too???? wideband of course
Reply
Old Jul 16, 2010 | 07:33 AM
  #16  
Staged07SS's Avatar
Administrator
Administrator
Platinum Member
iTrader: (25)
 
Joined: 12-30-07
Posts: 14,079
Likes: 197
From: NEPA
Originally Posted by Bluelightning
Agreed. You aint gonna get 3psi from an intake.
Yes you could ....

It is due to the fact that he opened up some restriction on the intake side, and that restriction is now pushed to the exhaust side. This means his exhaust isnt flowing as well as it should.

Back in the day after people put intakes on their stock SS/SC's they all ranted and raved that they are now making more boost. It wasnt a good kind of boost increase, because all it meant was their exhaust setup wasnt flowing the amount of air the car was taking in.

Originally Posted by Hockeyman
that is not normal, you could potentially lose boost because of less restriction when using a 3" CAI.
You decrease boost when you install a better flowing exhaust. Not from installing an intake. Remember boost is a measure of restriction.

Last edited by Staged07SS; Jul 16, 2010 at 09:06 AM. Reason: Automerged Doublepost
Reply
Old Jul 16, 2010 | 08:05 AM
  #17  
Supercharged Guy's Avatar
Senior Member
iTrader: (1)
 
Joined: 07-27-09
Posts: 3,721
Likes: 0
From: Concord, NH
When I had my ZZP 3inch on my 06 I deff. noticed some power gain, not a spike in psi like 3 lbs but it deff. did something

For the person that asked it's 199.99 I believe

It is a very good Intake
Reply
Old Jul 17, 2010 | 04:15 PM
  #18  
395 plus's Avatar
Senior Member
iTrader: (1)
 
Joined: 07-23-08
Posts: 1,104
Likes: 0
From: Plymouth, WI
Originally Posted by Staged07SS
Yes you could ....

It is due to the fact that he opened up some restriction on the intake side, and that restriction is now pushed to the exhaust side. This means his exhaust isnt flowing as well as it should.

Back in the day after people put intakes on their stock SS/SC's they all ranted and raved that they are now making more boost. It wasnt a good kind of boost increase, because all it meant was their exhaust setup wasnt flowing the amount of air the car was taking in.



You decrease boost when you install a better flowing exhaust. Not from installing an intake. Remember boost is a measure of restriction.

Agreed you are shoving more air through the same size exhaust tube creating more restriction thus more boost is showing up on the gauge.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
KMO43
Front Page News
33
Jan 12, 2016 12:01 AM
hacadacalopolis
Parts
8
Oct 28, 2015 06:09 PM
Trav3480
Problems/Service/Maintenance
0
Oct 1, 2015 08:17 PM
KMO43
Featured Car Showcase
37
Sep 27, 2015 08:53 PM




All times are GMT -4. The time now is 08:38 PM.