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What's the best type of induction kit?; advise please?
Topic Started: May 18 2008, 06:08 PM (349 Views)
mark2104
Stage 2
Just looking for an opinion astowhat peoplethinkis the best type of induction kitfor a bzr? I bought the car with a straight through apexi exhaust solooking to go from there?
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20sideways
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20sideways
none, just vent ur bonnet and get some 70mm trumpets, and remove the plenum!!!
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Shawn
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// トレノ君 //

supposedly the tuning on the Yamaha/toyota engine is so good that ur most likely going to lose power with an induction kit, but...i have an HKS which looks and sounds nice :D
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kyleseo
Stage 5
Ae111blast
May 19 2008, 12:35 AM
Technically venting your bonnet will create negative pressure and will actually starve the stacks!

If you want a vent have them facing the wrong way and they will drag the hot air out!


not entirely true, there are alot of physics principles involved. venting the bonnet the opposite way is similar to the idea of raising the rear of bonnet to allow air to escape. there have been a couple of investigations into this and most have found no drop in bay temperature and a few have found an increase! there is a good picture someone from the states i think when they have used thermal imaging to show the heat. the original gap at the rear of the bonnet was designed to draw air in but the design of the raise had to be right, the sides of the bottom also had to remain flush with the car to keep the pressures.

the Bernouli (sp?) Effect should be working from underneath the car. i.e air moving under the car drags hot air back out.
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JASE
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Stage 6
been reading the posts on here re induction kits and the majority say stay clear of them as they can make you loose power,

took the air box off today and started the car sounds awesome, is there any way of creating the noise you get from an inducition kit but with out removing all the standard air filter box???????

any one got any suggestions
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chiksluvit
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[OO\_____/OO]
change the intake pipe between the 2 boxes to an aluminium one.. then take away the resonator in the guard
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Kaiser
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Stage 5
What is the purpose of the resonator in the guard? Is it just to keep moise levels down?
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Jin
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Stage 5
frax
Mar 20 2009, 09:06 PM
keeps a reservoir of air handy so if you put the foot down it can still breath.
o.o i didnt know that! Learnt something today, thanks lol :D
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frax
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Stage 6
but would running an arc intake chamber
http://www.rhdjapan.com/jdm-low/ARC-Super-Intake-Chamber-AE111-50298
balance out the effects of removing the reservoir from behind the front bar?
technically that reservoir of air would still be there just in a different spot??
Edited by frax, Mar 21 2009, 11:34 AM.
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BZ-G
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aka Hyper Rev 4...
removing the induction box will loose power? stay clear away from those??? never read any posts regarding that, or did i miss something....
the intake system has many parts, which exact part are you refering too??? the resonator, the air filter box, the curved rubber hose between the air filter box and the plenum box, the plenum box or the 4 curved funnels in the plenum box???

all i know is that removing the 4 curved funnels and not fitting anything in the plenum box will reduce power....

the resonator not only keeps the air in when you needed it... but it also maintains bit or torque... therefore removing the OEM resonator box and fitting it with the ARC intake chamber works the same way...
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Cheensbo
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'88 Carina II
ive all standard intake equipment, if i take that resonator off from under the front left arch, will it: lose power?? gain noise?? do anything??
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nismoe
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Levin-headed
All the various components that bz-g listed are there for a reason. I would not go beyond adding a drop in aftermarket filter unless you go all out and get the full arc kit. The only time i have ever experienced a gain with an open element air-filter or removing resonators etc. is with turbo-charged applications.
20v's sound pretty sweet as is imo B)
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Cheensbo
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'88 Carina II
ok thanks man!! :cheers:
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BZ-G
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aka Hyper Rev 4...
well i know for a fact that removing the resonator box from the front guard in a honda civic's and accord's has proven power gains from dyno runs but not 100% sure about toyota's since i haven't seen any dyno comparisons.... but it does make it bit noisy though....
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JASE
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Stage 6
Z33kdud3
Apr 27 2009, 07:51 PM
always remember one thing jase, the key for speed and making an ae111 run better and faster is air and fuel so your going the right way.
:cheers: yep wanting to do a conversion from standard air box and also looking at upgrading to a fuel boost reg unit as well :)

decided that i am going to go for the upgrade on the panel filter and add additional cold air feed into the standard box instaed of buying induction kit

what is the best breathable panel filter and where would i get one from for our cars

cheers
jase
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JohnnyBZG
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Needs to Try Harder
I have the Apex'i panel filter in mine, to be honest I couldn't tell the difference from the standard, as 1-2 hp increase ain't too noticeable, don't know if any torque gains, again, would be negligible..
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JASE
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Stage 6
Kaiser
Jun 8 2009, 08:06 AM
I changed the standard air filter to a K&N and the car felt a lot more responsive to the throttle, could be all in my head but K&N claim that their filter 'straightens' the air flow to get it into the engine faster....sounds nice over 3000 revs too.....
any one got a part number for the k&n panel filter and rough price best stockist to supply on the uk :whistle:

Mr. Shine
Jun 8 2009, 10:33 PM
K&N is probably easier to source, but they also need to be oiled, which I don't like the idea of. My vote always goes for A'PEXi filters though, and I have one on the way for my Levin. It's bone stock aside from the filter, so I'll update this when I've got it and it's in :)
cheers mate and include a pic :cheers:
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Mr. Shine
Stage 2
JASE1
Jun 9 2009, 02:43 PM
cheers mate and include a pic :cheers:
Won't be anything glamourous; I'm following the advice of everyone here and going with a panel filter replacement :P

Well I got the panel filter replacement yesterday and installed it after I got home from work. Very easy to install as you'd imagine, I separated the airbox from the intake pipe and unclipped the cover, lifted out the old air filter panel and dropped the A'PEXi one in.

I took it for a spin a few hours later with the missus, and I noticed that it was slightly more responsive on the throttle. There wasn't any noticeable power gain, but acceleration was definitely much smoother-feeling and it felt less sort of restrained. Driving it to work this morning I got onto the motorway after about 15 minutes in suburb traffic to let it warm up, and the pick-up dropping from 5th to 3rd gear is much smoother and stronger.

It's not a huge change, or even a noticeable power change, but it certainly feels smoother and more responsive, so I'm liking it :)
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JASE
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Stage 6
excellent shows its breathing a bit better then , might have to invest in one and feed in an extra cold air flow
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loftan
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Stage 2
i had a cone filter lying around the garage so decided to take out the std black air box and filter and put the cone instead...

Fitted nicelt into the std hose going into the black pendum thingy :idk: ..anywho been running it for bout a week now sounds awesome after 5k more of a howl rather then a scream from the std box...

My question the sensor i pulled out from the std box now is kinda lying around there...will this cause a problem with the air flow rate or meter or comp box?cos it is a sensor and should have some comp input @ sum stage. :cheers:

pwr hngry
Jul 15 2009, 01:32 PM
youll be running rich as a result of having that lying around in the engine bay
any advice on where i can put it for now??

i'm planning on getting a pipe from the cone to the pen @ a leter stage..
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mike ae111
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new ae111 coming soon
if you drill a hole in the pipe somewhere it will do as long as it is reading the air in the intake your grand
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1i1
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NZ Toyota Parts Guy

SileightY
Jul 16 2009, 04:03 AM
1i1
Jul 15 2009, 08:29 PM
pwr hngry
Jul 15 2009, 01:32 PM
youll be running rich as a result of having that lying around in the engine bay
....
I still need to get around to mounting this sensor properly..but from what your saying..it can pretty much be stuck anywhere around the intake?...at the moment ive kind of just wrapped around some earthing wires near the intake...
Spot on.
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Jungian
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Stage 4
I done some research and then had a play around with the intake system on my car last week. I took the Plenum chamber cover off and left the curved intake trumpets exposed.

The car sounded great when I took it for a drive however it was obvious there was major loss of torque low down in the revs and at high revs there was little gain if any, all according to my arse dyno.

Unless you are going to alter the A/F ratio or get an aftermarket ecu then running without the plenum is not a simple mod that will gain you any where without major spendage for dyno time. This is because the plenum acts as a barrier so that the air going into the engine is cooler and at a higher pressure than the air in the rest of the engine bay. That is what the ECU is mapped to deal with.

A cold air intake feeding straight into the plenum is something that will work well I'd say without any major changes needed to A/F ratio that the standard ECU can't deal with. Its near the top of the list of mods I'm making to my car soon anyway.

Running without a plenum of any kind went out with the carburettor as far as it being a serious performance mod. Engine designers and tuners want the advantages in having an air supply that is more stable in terms of air pressure and temperature. It makes their jobs mapping an engine far easier.
Edited by Jungian, Jul 16 2009, 12:08 PM.
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1i1
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NZ Toyota Parts Guy

Or remove the ducting from the entry to the airbox (the one that houses the filter). Run new larger ducting down through the hole into the inner guard where the resonator box sits (enlarge the hole on the inner guard/apron as well) then run this ducting up to a snorkel in the front bumper (in place of a fog light)
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Cheensbo
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'88 Carina II
ive got my plenum off at the moment... ran an air duct to the funnels (which i have filtered temporarily)... i dont know if i've lost much power (probably have) but it sure is noisy and fun! :wave:
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