Air Filter

[vvega]

value for money......
now, would really trust a $35 filter from repco??

The ones with the inverted bit in the top are made by simota. So there is nothing wrong with them.
The HKS styled foam pods & the see through stainless ones are a bit doggie.

vvega
I've talked to plenty of people who have gone from K&N in the factory air box to pods & have noticed an improvement. But like I said a pod in a cold air box would give you the best results.
It would be interesting if NZPC did a article on this subject.

http://www.max-boost.co.uk/max-boost/im ... r_test.htm
http://www.mkiv.com/techarticles/filters_test/1/

dude not been horible offensive or silly but id like to see some attual dyno results
i dont know how many time ive herd people swear they have more power only to be put on the dyno and have a loss in the low end or midrange

just tring to extract some fats from a big pond of bulshit we call the internet

v

[Al]

This is very debateable.
From my experience a pod filter gives better results than a high flow panel in the factory air box.
Yes you will get even better results if you put the pod in a cold air box. Factory toyota air boxes just dont flow that well.

I like to talk numbers. My car can trap 110mph (trapspeed = power) down the strip. It uses the early factory airbox with a drop in panel filter. Can't be too bad.

[tomo1985]

Why would putting a a pod and cold air box cause a flat spot in the rev range? shouldn't it just be the same if not better if a well designed box is made. I have had pods with out a cold air box and in that case you are better off using the standard system. Now i have a fiberglass box sealed from the engine bay and im sure it makes a small difference. But you cant really expect a huge difference on a n/a.

[vvega]

they spend a hell of a lot of money on reasurech to make the airbox do its job well

if anyone thinks they can wipp down and buy a chepa bit of alloy and make something better there only folling themselves

v

[The_Sorrow]

Sorry to hijack (its partially related)
I'm in the middle of making this

http://www.4age.net/tech/coldair.htm

Anybody care to guess on the result of doing this for a 20V Silvertop?
Or would it be better to just duct from the front to the factory airbox?

Does anyone ACTUALLY know? Futhermore, can anyone actually PROVE it?

[vvega]

Sorry to hijack (its partially related)

I'm in the middle of making this

http://www.4age.net/tech/coldair.htm

Anybody care to guess on the result of doing this for a 20V Silvertop?

funny how theres never any dyno sheets

[The_Sorrow]

Sorry to hijack (its partially related)

I'm in the middle of making this

http://www.4age.net/tech/coldair.htm

Anybody care to guess on the result of doing this for a 20V Silvertop?

funny how theres never any dyno sheets

Dyno's are for cabbages ow, it's by how many pounds of VTEK its running
But seriously, does anyone actually know?

[ROBODISCO_20v]

All the honda boys in Whangarei used to put their pods in the guard like that but it recked the filters pretty quick from all the shit they picked up & not to mention the water that got in there. Then James at workshop X started making carbon cold air boxes for them.


As for the pod vs. std air box I guess it's just one of those things that every one will agree to disagree on.
I still managed 102kW with my HKS pod sucking in all that warm air

[vvega]

now take it off and tri a pannel in you stock airbox and redyno
i woudl be very interested in your results
remeber to go to that same dyno :d

v

[Santa'sBoostinSleigh]

It would be interesting if NZPC did a article on this subject.

NZPC dont know sh*t from breakfast

[no_8wire]

the only advantage I can think of in replacing your factory filters is
1. It sounds cool!
2. You have a VERY indirect air route to your filter...eg aw11...
please excuse the very bad paint...


that air has a whole lot of 90 degree bends it needs to do...

[ROBODISCO_20v]

now take it off and tri a pannel in you stock airbox and redyno
i woudl be very interested in your results
remeber to go to that same dyno :d
v

Any body got an AE111 BZ-G air box I could borrow?
I've done to many mods scince i last had it dynoed to get a fair compairson

& Yes who ever writes the NZPC mod section isn't the most on to it person, & I would have to say they know little or nothing about toyotas from the replys I've read.

Here's a pic of my mates cold air box in his tegs.
http://profiles.nzhondas.com/profile.ph ... &photoid=2

http://www.workshopx.co.nz/images/devt/plen2.jpg

[RS13]

I went from factory airbox to $30 cheapy pod from Repco, went from 8 to almost 9psi, sounds pretty damn hot too.. Although, I do notice the heatsink effect, if I've been sitting in a drivethrough or traffic for anything more than 5 minutes, it seems remarkably slower until I get some airflow going through it again. That, and I've gone from around 450kms a tank to around 350kms a tank of fuel, same driving style.

So, for me personally;

Pros: Gained 1psi, more noise (sounds like a jet!), feels less strained over 5000rpm.

Cons: Easily affected by engine bay heat, hugely increased fuel consumption, non-oiled, so can't reuse it.

Also, after speaking to my engine builder, he told me I'd get no more filtration with the pod than the factory panel, both being paper, just better airflow. So for my $50 (pod and adaptor) I think it was worth it. Bear in mind, it was on an RB20, which is markedly different to a n/a 1600! My next mod is to build a cai..

[Mr Revhead]

are you sure its filtering the same?

[TRD001]

Buy a panel TRD Filter, It was desinged by TRD Specialists who desinged it to suit Toyota's It's not just some universal filter that fits like a ford laser, As for POD'S They are not something that you would notice a mahor difference in my opinion.

[BZG Wagon]

Cons: Easily affected by engine bay heat, hugely increased fuel consumption, non-oiled, so can't reuse it.

I thought more air-flow would = a leaner running engine thus less fuel consumption?

...unless you drive it harder...

[ROBODISCO_20v]

Your factory ecu will compensate for any small changes in air flow, like installing a high flow filter. More air equalls better combustion

TRD001, how many high performance cars do you see that are still running the standard air box The only ones I've seen are race cars and they probarbly have to run them to to keep with the class rules.
If you still want a high flowing factory air box & K&N type panel, get one off a VN onwards commodore & retrofit it to your toyota. But why bother when you can fit a fit a pod

[vvega]

Your factory ecu will compensate for any small changes in air flow, like installing a high flow filter. More air equalls better combustion

TRD001, how many high performance cars do you see that are still running the standard air box The only ones I've seen are race cars and they probarbly have to run them to to keep with the class rules.
If you still want a high flowing factory air box & K&N type panel, get one off a VN onwards commodore & retrofit it to your toyota. But why bother when you can fit a fit a pod

how many do you see with a pod fitted.... im talking real racecars

they all have trial and error fitter airbox's
some teams go though 30- 40 setups before they get one that has good gains
do you have the kind of money to do that to get gains from modding your factory airbox ???

i even know of people that have been running open trumpets and now runn a airbox again finging they have more power

its called hemholz im sure you would have seen it mentioned lots in redmists posts

v

[jasestu]

they spend a hell of a lot of money on reasurech to make the airbox do its job well

if anyone thinks they can wipp down and buy a chepa bit of alloy and make something better there only folling themselves

Very valid point, manufacturers do spend a lot of money ensuring correct airbox design. However, one goal of a factory airbox is to minimise noise (as well as to maximise power across the rev range). I'd suggest that an aftermarket option which doesn't have to balance these conflicting goals may offer a performance increase (at the expense of a quiet induction).

[ROBODISCO_20v]

I was just reading an article in the lates zoom magazine on tuning a Falcon XR6 turbo. They were doing dyno runs after doing the mods like exhaust only(245kW), the adding a piggyback ecu etc. They managed to get 308kW at the wheels. Standard was just over 200kW(The factory rating is only 195kW) Then for a laugh they did a run with the factory air box open so it didn't have to breath through the filter & they got 320kW Thats an extra 12kW at the wheels just by removing the restrictive factory air box set up! You can pick this mag up from most bookshops etc & read it for your self if you dont believe me.