best CAI for ss/tc?
best CAI for ss/tc?
im looking to buy a cold air intake within the next week or 2 but i need to know which one is the best out there. i already know that hahns isnt worth a ****. or at least thats what iver heard. so id like to know who has the best one out there and WHY its the best one.
ok here
I have Hahn. good intake. sounds good. i havent logged it yet so i dont know how the short term fuel trims and long term are. need to make custome piece for vaccuum line. rubs a lil on the AC line. Maf sensor barely extends to the intake
Injen. stock location MAF. kind of wacky STFT and LTFT from what i read.
AEM. MAF sensor relocated to the fenderwell. No change in STFT and LTFT. gives a chirp when under WOT shifting.
CAI (one im going to next) stock MAF sensor. 0 change in LTFT and STFT. 3 in. all one piece. dry flow filter.
please someone correct me if im wrong.
Dejon..... dont use it.
stay away from SRI. wacky STFT and LTFT. power is only good till 75. but picks up there a lil faste.r CAi is for 75+ MPH.
I have Hahn. good intake. sounds good. i havent logged it yet so i dont know how the short term fuel trims and long term are. need to make custome piece for vaccuum line. rubs a lil on the AC line. Maf sensor barely extends to the intake
Injen. stock location MAF. kind of wacky STFT and LTFT from what i read.
AEM. MAF sensor relocated to the fenderwell. No change in STFT and LTFT. gives a chirp when under WOT shifting.
CAI (one im going to next) stock MAF sensor. 0 change in LTFT and STFT. 3 in. all one piece. dry flow filter.
please someone correct me if im wrong.
Dejon..... dont use it.
stay away from SRI. wacky STFT and LTFT. power is only good till 75. but picks up there a lil faste.r CAi is for 75+ MPH.
ok here
I have Hahn. good intake. sounds good. i havent logged it yet so i dont know how the short term fuel trims and long term are. need to make custome piece for vaccuum line. rubs a lil on the AC line. Maf sensor barely extends to the intake
Injen. stock location MAF. kind of wacky STFT and LTFT from what i read.
AEM. MAF sensor relocated to the fenderwell. No change in STFT and LTFT. gives a chirp when under WOT shifting.
CAI (one im going to next) stock MAF sensor. 0 change in LTFT and STFT. 3 in. all one piece. dry flow filter.
please someone correct me if im wrong.
Dejon..... dont use it.
stay away from SRI. wacky STFT and LTFT. power is only good till 75. but picks up there a lil faste.r CAi is for 75+ MPH.
I have Hahn. good intake. sounds good. i havent logged it yet so i dont know how the short term fuel trims and long term are. need to make custome piece for vaccuum line. rubs a lil on the AC line. Maf sensor barely extends to the intake
Injen. stock location MAF. kind of wacky STFT and LTFT from what i read.
AEM. MAF sensor relocated to the fenderwell. No change in STFT and LTFT. gives a chirp when under WOT shifting.
CAI (one im going to next) stock MAF sensor. 0 change in LTFT and STFT. 3 in. all one piece. dry flow filter.
please someone correct me if im wrong.
Dejon..... dont use it.
stay away from SRI. wacky STFT and LTFT. power is only good till 75. but picks up there a lil faste.r CAi is for 75+ MPH.
STFT: Short Term Fuel Trim
LTFT: Long Term Fuel Trim
If for instance the O2 sensor is showing rich or lean, then the car changes the STFT to add or take away fuel to compensate for the rich or lean condition.
Over time the STFTs create a trend (LTFT) which adjusts for what the car tends to be... either rich or lean. Think of it like sighting in a gun. If you constantly shoot under the target, then you need to adjust the gunsight higher so you're on target every time.
Now what's happening with the intakes is that the Mass Airflow Sensor (MAF) is telling the engine it has a certain amount of air coming its way, but the intake changes the amount of airflow depending on the length, diameter, bends, etc. and the MAF may not read the airflow correctly now that the air hits it differently. This causes MAF "skew", where the actual airflow versus what the MAF sees is skewed.
Over time the car will adjust for this in the form of the STFT and LTFT, but it's better if you either get an intake from the get-go that lets the MAF read correctly or you'll maybe want to get tuned and adjust the MAF input in the ECU programming to compensate for the change in airflow that the MAF sees.
LTFT: Long Term Fuel Trim
If for instance the O2 sensor is showing rich or lean, then the car changes the STFT to add or take away fuel to compensate for the rich or lean condition.
Over time the STFTs create a trend (LTFT) which adjusts for what the car tends to be... either rich or lean. Think of it like sighting in a gun. If you constantly shoot under the target, then you need to adjust the gunsight higher so you're on target every time.
Now what's happening with the intakes is that the Mass Airflow Sensor (MAF) is telling the engine it has a certain amount of air coming its way, but the intake changes the amount of airflow depending on the length, diameter, bends, etc. and the MAF may not read the airflow correctly now that the air hits it differently. This causes MAF "skew", where the actual airflow versus what the MAF sees is skewed.
Over time the car will adjust for this in the form of the STFT and LTFT, but it's better if you either get an intake from the get-go that lets the MAF read correctly or you'll maybe want to get tuned and adjust the MAF input in the ECU programming to compensate for the change in airflow that the MAF sees.
thanks man that helped clear alot up for me
so right now im being told that AEM has the best one out there.
so right now im being told that AEM has the best one out there.
Last edited by BEASTmode632; Jul 23, 2009 at 07:55 PM. Reason: Automerged Doublepost


