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Post by hilkidal on Aug 18, 2011 21:55:34 GMT 8
Is it true for auto car do no use open pod air filter?
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Fιcκs
Gear THREE
Posts: 474
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Post by Fιcκs on Aug 18, 2011 22:15:19 GMT 8
You need to try to know. I'm using open pod myself on an AT car.
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Post by DGray on Aug 19, 2011 1:41:10 GMT 8
Im use both setup. Go figure.
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fmx
Gear TWO
Posts: 281
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Post by fmx on Aug 19, 2011 10:20:16 GMT 8
AT can use open pod but low end lag is noticeable. To overcome this........step harder.
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Post by cliuc on Aug 19, 2011 12:12:03 GMT 8
I tried R.I.S.K (which is considered as open pod) on my Auto Picanto, felt that the lag wasn't noticable. Could be because of how the R.I.S.K concept works... just my 2 cents
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Post by hilkidal on Aug 23, 2011 1:05:24 GMT 8
Any difference for open pod and drop in air filters need advise?
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Post by picanyeo on Aug 23, 2011 6:20:28 GMT 8
Drop in filter: replace current panel filter in airbox. No change in setup. Many brands available.
Open pod: mushroom or cone type filter. Replaces entire airbox. Connected using a short piping. Engine breather filter will be necessary.
Open pod on ATs may be running lean and affects low end. This can be resolved by tuning the ECU to compliment the changes in airflow.
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Post by themostextreme on Aug 23, 2011 8:35:14 GMT 8
Bro, u didn't explain why open pod on AT (or maybe to a certain extent MT) affects low end? why such characteristics/behaviour happens?
BTW, 2nd question - does it affects the FC if u were to tune the ECU (or remap or piggy-back) just to compliment (or rather compensate) the airflow?
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Post by picanyeo on Aug 23, 2011 9:31:38 GMT 8
Hi, I will answer your questions based on what I know. I hope I am right. Qn 1) why open pod on AT (or maybe to a certain extent MT) affects low end? The vehicle's stock mapping is based on using the stock airbox. Which means the amount of fuel injected is based on the airflow settings of the airbox. If you changed into an open pod, the airflow increases but the amount of fuel injected remains the same. This affects the optimum a/f ratio into a lean ratio, more air than desired. The amount of fuel injected can only be changed through tuning the ecu which the duration of the fuel injectors opened will be increased. This will allow more fuel to be injected. The result will be lag in low end will be eliminated. In addition, more air (from open pod) + more fuel (from ecu tuning) will produce more torque. For MTs, they can use the clutch to counter the loss in low end but reving higher before releasing the clutch. You may have to ask some MT drivers in this. Qn 2: does it affects the FC if u were to tune the ECU (or remap or piggy-back) just to compliment (or rather compensate) the airflow? No. Theortically speaking, amount of fuel used should increase since more fuel is made to inject with the increased air flow. However, you will not need to rev high since the low end lag is eliminated. You can carry on driving the way simialr to your stock airbox. Unless you purposely rev high, or you changed your driving habits, FC should be similar to before tuning, which is the case for me. Changes you will expect after tune: Low end lag removed, more torque from engine and engine sound more omph. Engine tends to sound "hollow" when running lean. Do note that the feedbacks that I posted is based on Original ECU Programming, direct ECU tuning. For PB, you may have to seek another users feedback.
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