Cold Air Induction

[KE70MAN]

anyone ever thougt about a pod air-filter onto a 4k-c? like it would need some sort of fabrication to the pipe that connect around the carby(cus of bonnet and it being down draught carby) then just run the pipe down near the ground or behind headlight to a fat pod and wallaa!

what u think?

Carl :D

[reCOUPErator]

hey I alredy had the idea to put a pod on my 4K-C,

Have all the gear i need just have 2 find time to put it on!

Due to exhaust manifold heat I was going to run a flexible air intake hose ($32.00 for 1M) along the firewall and over to the other side using a commodore adaptor bracket for ecotec v6 ($39.00) into a direct drive pod ($29.00) but have kinda decided to scrap the idea of going over the engine as it would probably get as hot as putting the pod on the intake side! I i had a custom box (around) a 120mm cube made from stainless and than sandblasted incase i want to paint it!

To try and help solve heat problems i'm going to run the pod from the carby to the front just behind the headlight, and remove the horn from that side allowing more cold air entry and run the leftover hose from somewhere towards the pod!

Which way do you guys think would be the most effective way of doing this? over or straight to the front??

[reCOUPErator]

yeah but then u hav 2 cut your bonnet!

[KE70MAN]

if i were u, i wuld just run it to behind the headlight. u can always move it if u want but if u decide to go to the drags or a skidpan, u can remove ur headlight and there u have it, a pod sitting in direct airflow. what i am finding hard is how to connect the pipe around the carby?? i was thinking of crimping the pipe to form more of an oval, then weld up one end, cut a hole for the carb to sit and sumhow attach it. or even if it was a flat/square piece, connecting to the carby, which then connected to a round piece-then the pod..

as for the exhaust manifold, could either make a custom heat shield, and or wrap it in that heat wrap stuff..

it wil have so much better airflow than original. and hopefully we could hear...the wirring noise during acceleration..yew!

Carl :D

[KE70MAN]

bonnet scoop would look good i suppose. but cutting a hole in my bonnet hmmm how is it done? and then how is the scoop attached to the bonnect itself? maybe if i cut a hole, the just have grill mesh over the hole? do i have to weld up like the 2 seams of the bonnect and then probably put a rust inhibitor over it, then re-paint? it sounds easy but it may be tricky..

Carl :D

[reCOUPErator]

As i said i got a stainless box made with a 80mm (i think) hole in the bottom and an outlet with a lip to clamp the hose onto! will try that first probably this wknd! You use the original bolt thhingy to hold the box on the carb with a wingnut (also original) will tel u how it go's

[Nitephyre]

so what if you have to cut the bonnet... it's not like they're in short supply :D

[Super Jamie]

i would think cold air on a stock K motor would be counterproductive. these carbs have pretty shitty mixture anyway, hotter air helps make the mixture atomise better, so you get a better burn. that's part of the reason the stock exhaust manifold attaches to the inlet manifold

 

i know my aisan went HEAPS harder on a hot summer day than a cold winter night. and i doubt that has anything to do with mixture, the tune was nowhere near that precise, i was probably lucky to be getting 10:1

[Felix]

it would be your mixtures. if your car is lean (which it sounds like it probably was), you will find as the temps heat up the mixtures get richer, improving performance.

 

this is simply due to the fact that a given volume of air has less oxygen particles the hotter it gets, but the same quantity of fuel per volume of air is still added. ie a carb can't compensate for temp, humidity and elevation above sea level.

 

i really noticed this after fitting an O2 sensor and Air fuel meter. i live at 300 m above sea level. i regularly do the school run to 550m above sea level, and alternatively do a lot of driving around off the mountain. you can see the car get richer on the climb. it is only about 0.4 of a ratio difference by my meter, but is noticable seat of the pants.

[KE70MAN]

ok, getting off topic here...

anyways, so its easy to chop the bonnet for a scoop? does anyone have any fotos of how it is done or any jobs?

Carl

[Super Jamie]

i wouldn't put a bonnet scoop on, it would look silly. cut a hole in the inner guard and run piping down to there if you must

 

i still think it's a waste of time on a stock 4k. even if you do pick up power, it's not going to be at a level you can feel from the "butt dyno". save your efforts for something worthwhile that will actually make a difference, like following justin's nikki carb article

[Nitephyre]

aww, whats wrong with scoopy goodness :D

[mikeys toy[RL]]

i don't know how the cowl airboxes are on later corollas, but try to connect your intake to the firewall where the air is drawn in for the heater. it's all negative airpressure anyway so it acts as a cowl induction

[ROLLN'03]

Its all been tried and tested here...

 

I ran a pod on my 4k for a while.

 

With the weber, it most definately changes the induction noise! :D

 

a CHEAP and easy way:

Find an older van at the wreckers, and because of the wierd engine set-up, under the seat, if they are carby, there should be a adaption pipe on top.

After i found one of these( $10 ), i took it to the exhuast shop and for ($20) I had some pipe the shape and length i wanted attached to it. and went to supercheap and brought a pod filter ($30).

 

* You just have to be careful, they attach straight onto the stock carby, but the weight of the pipe can damage the top of the carby if not setup correctly.

 

After i got sick of this idea, (although it looked a treat) i decided to cut a hole in my bonnet, with an air jigsaw, making sure not to cut the bonnet bracing. The hole was cut just in front of the carby to get 100% air flow. then went to autobarn and purchased a bonnet scoop that was shaped to my needs, and stuck it on, with the double sided tape provided... :D

Edited May 3, 2005 by ROLLN'03

[ROLLN'03]

Very much so in the top end power..

More excelleration too....

 

+ the induction noise is SWEET