My Jazz Airbox

[LSD GD3]

http://img513.imageshack.us/img513/1915/dscf0043ba7oh6.th.jpg (http://img513.imageshack.us/my.php?image=dscf0043ba7oh6.jpg)
http://img227.imageshack.us/img227/4911/dscf0041am0.jpg


Dyno Reading: Stock Jazz 65.83kw@wheel. With Airbox 72.03kw@wheel that is 6.2Kw Gain from intake alone!:thumbsup:
Dyno Reading (http://www.tunerzine.com/view_article/tech_feature/tunerzine-project-honda-fit-part-6)

[LSD GD3]

this dyno was done by a member of fitfreak.net, not from any trader or so. and every1 whove used it gave me a positive feedback so I second this!!

Thx for the link haha

[Slow_Dan]

Thanks for doing the dyno test. i'm putting the same intake in this sat! well at least looks like the same simota intake

[bennjamin]

6.2kw gain , at the wheels on a jazz ? Thats atleast 10kw at the engine.
You dont get these gains on larger engines from just replacing the intake.

So...does it feel any better or is this just a number ?

[mars_panas]

pwoarr NICE i wonder what i gain with my SRI

[VT1-R]

bear in mind.. ppl from fitfreak is a worldwide community.. including the USA n Europeans which has high reading dyno.. at best you are looking at 3-4kw atw max..

[VT1-R]

mine is arriving next week :D but again just for some info:

1. the dyno wasnt conducted by a seller, but was done by a customer + a user of fitfreak.net
2. the dyno was done in a manual L15A vtec
3. the dyno doesnt seem to be reading high, start at 65kw atw sounds fair

I would like to dyno mine after putting this intake, but seriously can anyone tell me how to dyno cvt cars properly? some people have said not to use power vs rpm graph but use power vs speed, G-tech pro manual said to go power vs time instead...

65kw atw seems a lil higher than normal la.. lol..lesser than 20% drive train loss..lol..high 50s to 60kw atw den is jus nice..also jazz lose more kw atw for auto..

this guy in ozhonda did headers,hi flow cat,(no Bpipe) with muffler i assume, crankshaft pulley & a APEXI INTAKE!!!... got 67.9kw atw.. lol.. how a stock jazz got 65kw atw if its not high reading.. cant gain only 2.9kw with all those mods i am sure..

http://www.ozhonda.com/forum/showthread.php?t=66975&highlight=jazz+dyno

[BiLL|z0r]

I find this hard to beleive from a intake that has the filter located in a hot engine bay. It might get a few more kw's on a dyno since the car's only been running for a few mins but after 30mins of driving I'd like to see how effective it is then.

[Slow_Dan]

I find this hard to beleive from a intake that has the filter located in a hot engine bay. It might get a few more kw's on a dyno since the car's only been running for a few mins but after 30mins of driving I'd like to see how effective it is then.

Lol, back to the old SRI vs CAI who is the undisputed intake champion? :p

On the defence for SRIs with heatshield and placement, air generally comes from forward motion, flowed from the outside. So how fast the heat from engine transfers to the air is quite negligible. 30 mins of driving would definitely warm / hot up the engine bay. But dont forget, most of the time you will be driving, and so from the looks of the pics, when air goes into the engine bay, it gets sucked by the intake as well, so its not exactly that bad that you will be sucking air from around the heated engine. Not sure if the same logic can apply to "CAI"s when the pipes closed to the engine get so hot that it warms up the air trapped within the pipes itself. Again I think its negligible.

[LSD GD3]

Lol, back to the old SRI vs CAI who is the undisputed intake champion? :p

On the defence for SRIs with heatshield and placement, air generally comes from forward motion, flowed from the outside. So how fast the heat from engine transfers to the air is quite negligible. 30 mins of driving would definitely warm / hot up the engine bay. But dont forget, most of the time you will be driving, and so from the looks of the pics, when air goes into the engine bay, it gets sucked by the intake as well, so its not exactly that bad that you will be sucking air from around the heated engine. Not sure if the same logic can apply to "CAI"s when the pipes closed to the engine get so hot that it warms up the air trapped within the pipes itself. Again I think its negligible.

i have already DIY a shield around the filter Just letting air in from the side where the air is forced up from front grill to under the headlight unit!

[hondajazz2005]

i have already DIY a shield around the filter Just letting air in from the side where the air is forced up from front grill to under the headlight unit!

leo, how you do that?? any pic ?? i want to do that tooo

[VT1-R]

lol.. ok la.. macro defending jazz glory..

say its 60-65 kw atw stock ok? lol.. but CVT jazz still loses more than manual jazz anyway.. but frm ur figures.. Toda Intake(well known in Aus) and Custom catback added 6kw atw... It already proves that the 6.2kw atw gain frm a simota airbox shouldnt be seen as a guide of intake gain in australia.. at least we agree on that..

I would defintely buy that 6.2kw atw simota intake for my gf jazz if thats a geninue aussie dyno approved gain..lol.. till then.. no chance for a SRI as mentioned.. sucking engine bay heat.. in a jazz gaining 6.2kw atw..

[LSD GD3]

leo, how you do that?? any pic ?? i want to do that tooo

very easy and Cheap too haha
just need to go to a $2 shop and find the Thick Foil sheeting for stove top wall around $2-$10 up to the area you in. and lay it out so it blocks air from the engine side and let air in from under the light. Make one big U shape for the bottom and another for the top.(This is just a Cheap Ass way) One thing good about the Foil is it don’t heat up and if you are Very keen about the heat just Double up the sheeting!
Bottom
http://img523.imageshack.us/img523/3061/dscf1914pz8.jpg
Top
http://img374.imageshack.us/img374/6826/dscf1915nq4.jpg

[LSD GD3]

Here is the box made from sheet metal that I built for my DIY intake

http://i72.photobucket.com/albums/i178/sylop729/insulated.jpg

Cool :thumbsup:
See my way was just lazy and cheap hahaha

[BiLL|z0r]

With a head shield then it changes the game a little. I've always been a fan of the CAI pipe up to air box (OEM or Aftermarket) so the air box keeps the filter cool with the filter still close as to not loose low dow torque.

[hondajazz2005]

lol u always spell my name wrong since last year >.< u shd get hondajazz2005 to dyno his haha, i think his is manual

yeah mine one is a manual. :p

and leo, what a good idea... cheap and easy
master claymore's one look so so so nice

[LSD GD3]

yeah mine one is a manual. :p

and leo, what a good idea... cheap and easy
master claymore's one look so so so nice

have you changed muffler?
cos my one muffler too loud and i wants to do a sounds file:(
would be super if you could:p

[hondajazz2005]

im using the xfroce s12, if you want i can do it.

[LSD GD3]

im using the xfroce s12, if you want i can do it.

Thx anyways ... but i want a just intake sound file... i may frd a frd stock jazz to do it.

thx mate:wave:

[hondajazz2005]

okok... marco lol...... i wanted to change wheel and coil first

[fitvpower]

hint hint, i got an 04 jazz (jap built) but dunt noe about later models, do you jazz owners feel that your throttle body warms up (actually hot) after 30 min of driving? My jazz has a coolant bypass running through the throttle body so ummmmm it heats up the air before entering the intake manifold, so my cold air intake does shit all. The whole point of this is to stop the throttle valve from freezing up in cold conditions. i live in qld we never get sub zero degrees so i disconnect the water bypass hoses and wow you can feel the difference.
this may not apply to some of the new jazzes built in thailand cause conditions over there are hot and do not need this stupid bypass thingo.

[Slow_Dan]

I have some materials that is not only heat proof, but fire proof too if you wanna build one :) i actually tried burning the sheets and they dont burn through

[LSD GD3]

hint hint, i got an 04 jazz (jap built) but dunt noe about later models, do you jazz owners feel that your throttle body warms up (actually hot) after 30 min of driving? My jazz has a coolant bypass running through the throttle body so ummmmm it heats up the air before entering the intake manifold, so my cold air intake does shit all. The whole point of this is to stop the throttle valve from freezing up in cold conditions. i live in qld we never get sub zero degrees so i disconnect the water bypass hoses and wow you can feel the difference.
this may not apply to some of the new jazzes built in thailand cause conditions over there are hot and do not need this stupid bypass thingo.

well engine gets hot!
and the throttle body is part of the engine of cause it gets hot!
the air at the throttle body is less then a 1/10sec away from being burn so i don't think it matters!

[fitvpower]

well engine gets hot!
and the throttle body is part of the engine of cause it gets hot!
the air at the throttle body is less then a 1/10sec away from being burn so i don't think it matters!

doesn't sound like you own a jazz lol, take a closer look, the tb on jazzes are attatched to the intake manifold and the intake manifold loops around the side to the top of the rocket cover, it does not touch the rocker cover. More likely heat generated is from a bypass hose linked to the radiator., it's like liquid cooling on a cpu(the tb), but reverse ie you transfer heat onto the tb and warm the air up

[LSD GD3]

doesn't sound like you own a jazz lol, take a closer look, the tb on jazzes are attatched to the intake manifold and the intake manifold loops around the side to the top of the rocket cover, it does not touch the rocker cover. More likely heat generated is from a bypass hose linked to the radiator., it's like liquid cooling on a cpu(the tb), but reverse ie you transfer heat onto the tb and warm the air up

So are you saying the intake manifold is not part of the engine and dose not get hot too?

and how hot do you think would heat up the passing air with that little time!

[SPEEDCORE]

i live in qld we never get sub zero degrees

Oh really? In the past month and a half I have driven 2-3 times in sub zero temps..... not 30 mins out from Brisbane too.

Having said that.. I have the coolant blocked off from going to the TB (EK4) and experienced no sticking/freezing of the TB driving in such conditions during the winter for around 4-5 years. In my opinion the real danger for it freezing over is when there is sustained WOT operation were there is large volumes of air moving through adding to the chill factor. Also rising warm air from the engine bay with a closed hood would lessen this chance.... its not like the intake is sticking out the hood like on a doorslammer.. where they are constantly spraying alcohol on the throttles to stop them freezing over.

[fitvpower]

first of all it's plastic and the part which comes in contact with the engine is a loooooong way from the tb housing plus. so umm it might burn ur hand if you drive 3-4 hours straight. Theory, what theory?? i actually did it and felt it myself. the fact you live in thailand and thailand is quite warm, the engine bay is already hot on top of the grilling conditions over there.

ps: Australia, it is alot colder than thailand

[fitvpower]

hmm sounds like your intake manifold is metal. No wonder it's hot. Ausdm ones are plastic (like the ozhonda background). Well my mod isn't too great for metal manifolds.
by the way, if honda designed stock intake systems to be heated by placing the majority of the manifold over the engine, why did they even bother with a coolant bypass hose to warn it up even further. Hmmmmmmmmm

[Joe kickarse]

lolol stop it.

[BiLL|z0r]

Geez, all this crap just for a "My Jazz AirBox" thread.

Back on topic:
LSD, did you have a stock airbox before? Is this much louder than what was there before (stock or if not, what did you have)?

[LSD GD3]

Geez, all this crap just for a "My Jazz AirBox" thread.

Back on topic:
LSD, did you have a stock airbox before? Is this much louder than what was there before (stock or if not, what did you have)?


Sorry what you mean?

Yes is much louder then the stock but only it you Rev it high. stock box is design to diffuse sound so stock box almost don't make any sound at all.

[hondajazz2005]

that is exactly how i feel when i first got it, cheers marco !!!

[kongfu]

US got the same intake called Mishmoto
http://www.mishimoto.com/mishimoto-honda-fit-carbon-fiber-intake-07.html

[alvin_R]

calm down......it just about the intake guys......for m opinon , no matter what brand u change for the intake tat not gonna make a big different, unless you upgrade all the others togther as welll as maybe end up you will feel lot more on the engine responce than the at wheel power increase.

[fitvpower]

i got intake in mine but havn't dynoed it yet to get any figures, any body went n dynoed theirs yet?