[Mk2] [Turbo] Best induction Kit to buy????

[jakirby]

sorry, ARC box with arc filter. Bought from Jamitsi

[oBladeo]

I bought a limited edition Apexi because they have the best performance increase and filtration.

In the bin with the hks bag of crap

http://www.mkiv.com/techarticles/filters_test/2/

[spannerman]

We're talking after market performance air filters but where is the performance.

I've read (can't remember where now) that the standard air box is good for up to 350BHP.

Does anyone have any data on whether these after market Performance air filters actually add BHP. Currently i'm on the belief they just sound good and nothing more.

I can see them adding a negligible amount (2-3BHP) on a naturally aspirated engine but on a turbo i'm not sure

Hopefully someone can offer some horse power facts on these?

Spannerman

[EarL]

We're talking after market performance air filters but where is the performance.

I've read (can't remember where now) that the standard air box is good for up to 350BHP.

Does anyone have any data on whether these after market Performance air filters actually add BHP. Currently i'm on the belief they just sound good and nothing more.

I can see them adding a negligible amount (2-3BHP) on a naturally aspirated engine but on a turbo i'm not sure

Hopefully someone can offer some horse power facts on these?

Spannerman

Once again...

Thanks to Gayle for finding this one.

take a look at this
http://www.mkiv.com/techarticles/filters_test/2/

[spannerman]

woo hooo, sounds like a winner. An extra 14BHP by sticking on of the Apexi filters on.

Thanks for the info

[oBladeo]

woo hooo, sounds like a winner. An extra 14BHP by sticking on of the Apexi filters on.

Thanks for the info

Not sure how much power you would get on a mr2 but theses tests were done on a Skyline

[jimGTS]

afaik, that test was also sponsered by apexi i heard, pmsl!
or a magazine that is sponsered by them.

maybe 14bhp on a skyline running 800bhp!

on an mr2, youll be lucky to get any sort of gains, noone you would be able to notice anyway.

[Moo]

I just put an Apexi on over the weekend and i'm sure it has made a bit of difference albeit very small. I definitely wouldn't say 14hp tho!

It does sound very nice so I'm happy with that even if the performance gain is just in my head

[SW20Paul]

I wonder what the New HKS reloaded filters are like they are 3 layer dry foam instead of the old 2 layer oil type,

Any one heard anything about em ?

[summ0004]

I really wouldnt take that article at face value as its known to very controversial and not a realistic test.

I heard it was sponsered by apexi and they use a vacuum cleaner which is hardly an accurate way a filter acts on the car.

The induction kits will all add a similar amount of bhp which by the way isnt very much on a standard tuned car. The main reason for the change is for the noise factor and the bling in the engine bay

Btw my HKS has been on the car for 40000 miles and with the element being changed every 1-2 years and the inside of the filter and the intake is as clean as a whistle.

[mattcambs]

woo hooo, sounds like a winner. An extra 14BHP by sticking on of the Apexi filters on.

Thanks for the info

Not sure how much power you would get on a mr2 but theses tests were done on a Skyline

Skylines (and 200SXs for that matter) are known to have very restrictive standard intake systems, so any performance filter will result in gains on these cars.

I think the best thing to do with any car is to examine whether its standard intake is effecient or not before upgrading. Unless you are just trying to get a better sound. There is also the decision to make as to whether a heat shielding closed airbox will actually perform better than a higher flowing open filter that soaks up engine bay heat.

[Mike]

Oh dear, I had no idea I'm supposed to change the paper filter on my HKS, where do you get them from? Are they just the standard Halfords type?

[redeye32uk]

Oh dear, I had no idea I'm supposed to change the paper filter on my HKS, where do you get them from? Are they just the standard Halfords type?

Looks like he could be sold out but worth an email to find out when hes getting some in >>> http://xxxx/catalog/p ... ucts_id=56

[summ0004]

Oh dear, I had no idea I'm supposed to change the paper filter on my HKS, where do you get them from? Are they just the standard Halfords type?

should be foam and not paper. Try and get a HKS one from some import specialist. They cost about 25 squids tho

[megatart]

Im tempted by the Arc box. Only 180 quid delivered from Japan.
http://www.nengun.com/arc/super-induction-box
Or the Apexi kit which ive got on my Aristo. Theyre £73 delivered and as theyre so light, ya never get any extra tax.
http://www.nengun.com/apexi/power-intake

[redmr89]

if were talkin perfomance. on a turbo. then the original air box with a performance filter added is probably best. maybe with some ducting from the wing intake.. im sure mark edwards proved this years ago. ( i could be wrong )

i think it was because all cone filters draw in warm engine air. thus dropping the power down a bit.

an aftermarket intake on a turbo is bought mainly for the noise i think.

correct me if im wrong. but ive never seen any evidence to prove cone filter give the massive gains the claim.

i have a blitz lm series and it sound awesome . lol

[mattcambs]

i think it was because all cone filters draw in warm engine air. thus dropping the power down a bit.

an aftermarket intake on a turbo is bought mainly for the noise i think.

correct me if im wrong. but ive never seen any evidence to prove cone filter give the massive gains the claim.

exactly, it depends on the car and how restrictive the stock intake system is. On NA engines it's about the gas speed, dictated by the intake length/width, that effects the engine's torque spread. Wacking a huge great cone on an NA not only increases heat soak, but the extra flow capability is only useful at high revs: maybe even higher than the engine actually revs to.

turbos just need low restriction, but low heat soak is also preferable

[pintovit]

Sure, everything said so far sounds correct...

But why can't the cone be located near the side vent and with a custom box to isolate it from the engine bay heat?

Surely the extra flow and the cold intake should help... not a big (or even noticeable) increase but shouldn't be worst than stock right?

I mean, for both N/A or turbo...

Just my 2 cents.

Regards,
Vítor

[steve]

some pics or my ARC box next to the standard intake boxes

http://s18.photobucket.com/albums/b149/ ... ion%20box/