Open pod air filter drop in low end

[Redspring]

Please advice, will an open pod air intake will drop in low end? What ia a balance choice?

[Dwoon]

For my setup..... it helped low end tremendously due to insufficient intake flow.

[Darth_mel]

Add a air-bleed device like the E68 to boost the low-end.

 

It helps, at least for me.

[Wpho]

hi, so what is a good open pod filter you would recommend? i am thinking of switching but also concern about the low-end loss.

Edited March 29, 2007 by Wpho

[Chiasin]

Add GNG lah ..Low end sure POWER poon Pee Pee

[Redspring]

My key concern is the it get very loud and it since like lost power during pickup but get well? which since should not be that way?

[Arowana1]

people who lose low end is because they dun heat shield the air intake area. hence hot air from engine gets suck in and cause lose of power.

 

when you do open pod, heat shield the intake area and best if you put a cai to it. tis is the setup of a typical air charger like simota, etc.

[Watwheels]

The drop in low end depends on the size of the tube, the air travel length or length of the tube and the size of the open pod.

 

Usually by shortening the air travel length will help eliminate the drop in low end but it'll bring the open pod closer to the engine where there's a lot of heat.

 

How to determine the length? Take your stock air in-take system as reference.

[Darth_mel]

I was using K&N open-pod for a while and later changed to Simota stainless-steel open-pod.

 

IMO, open-pod without any change in exhaust will only yield minor gains.

 

A crude analogy is like having a big mouth to breathe lots of air in but having a small anus to fart out all those wasted air.

Edited March 30, 2007 by Darth_mel

[Chevycavy]

Brilliant analogy I think...

 

Most ppl are unaware tat they have to mod intake and exhaust together for any significant gains...

[Dwoon]

I thought it would be very loud too and had my reservations....

 

When I fitted it (open pod CAI), it was actually quieter than my aftermarket Blitz LM drop in filter.

 

The pod is located in the wheel well..... which makes it a pain to clean yourself.

 

The part brought up by a bro here, about intake to complement the exhaust is very true. But then again, how do we know which is the bottleneck??? For me, the CAI +pod gave me a very marked improvement, which somehow also made the auto box shift smoother. My exhaust still have CAT adn muffler is also stock.....

[Conservative]

Agree...

I think this is the main cause of the loss in low-end, rather than intake temperature.

[Conservative]

I agree also.

 

While intake has some gains, upgrading the exhaust ( header all the way back ) will yield much more gains than if just added them up one by one...

 

Its like 1 + 1 + 1 = 5

[Garlic]

I had an experience with Apexi's power intake before changing back to stock resonator + K&N drop-in + CAI.

 

Mid to high end improved as the car felt more willing to rev.

 

Low end got affected and car felt sluggish, I realised it took more effort and gas to get the car moving from stand still.

 

Lastly, the filter produces a very aggressive growling sound when you step on the gas and hisses at idle, you can actually hear air being sucked into the filter.

 

I don't know if its the stock ECU being unable to cope with the extra air but gear changes were quite erratic at times, especially during sudden W.O.T inputs, the car seemed to run out of breath at a certain RPM and then the revs drop suddenly.

Edited March 30, 2007 by Garlic

[Dwoon]

Hmmm... the sound is one thing.....

 

But my experiece on the autobox shift is completely opposite to yours. My had erratic shifts on my stock setup (but re-tuned), till I put in a CAI + pod for higher flow.

 

I think your pod is still in the engine compartment which makes the induction sound rather loud. Maybe if it was in the wheel well and further away in front......

 

One thing to note is the tube/hose diameter where the MAF sensor is housed. Unless you're re-tuning, it is advisable to get the same tube size as your stock hose that goes into your filter box. Otherwise, your AFRs will be badly messed up...

[Redspring]

Any suggestion what should do to bring back the lowend

[Dwoon]

To be honest, I've not heard of intake mods of CAI + pod causing loss of low end..... unless the size of the pipe which mounts the MAF sensor is larger than stock one.

 

Then the AFRs are messed up and re-tuning is required. If you're using a CAI + pod, it is best to have those setup that runs the pod into the wheel well. This'll serve as a heat shield and probably noise barrier too. But of course, induction sound will still be more pronounced compared to stock, since your resonator is now removed/bypassed.

 

What I can advise is perhaps you can just ask the worjshop to detach/remove your resonator as a 1st step, if you'er afraid of losing low end. Have the intake going direct to your airbox. This'll free up the flow abit more. Then drive around a few days to see if there's any drop in low end. It'll be more noisy though w/o the resonator.

 

Then if everything is alright, you might want to source a pod + CAI setup which is tailored for your ride (e.g. AEM, APS, etc....). This'll remove the need for your airbox and if its anything like my case, it'll end up being quieter compared to the airbox with higher flow. Just be sure that the MAF section of the piping is similar to your stock size and it should be fine.

[Redspring]

Thanks I will give that a try