confused on cai
mmmmk well i need some clarification on cai's
pods, panels, growlers, airboxes, otr and whatever else i have seen on the forums.
what i want to know is why people put shit on pods and say k&n panels are the greatest then others say pods have to be enclosed to work better, then others say cai is just an expensive bit of plastic,
i understand that cold air is better for the motor and its better for the motor if it can "breath in" easier so i guess im gonna read the same replies to this as i have on seen on other threads but just some explanation would help.... thanks
Compulsive.
What are you asking for help with?
Why does an engine make more power with colder air? Simple, the air is more dense when cold, that meaning there is more oxygen per square inch of air, compared to a hot example of the same mass. More oxygen = more burnablity = more power.
^^ Very simple explanation.
Ben
There is no such thing as stupid questions, Only stupid people.
Banned
That's the most concise answer I've seen. And 100% true.
Another thing to take into account is flow. Flow is everything. The air can be sub-zero but if its not getting to the motor efficiently you ain't going far.
haha sorry umm is a pod better at its job then a panel is a ss inductions one better then say mace. im definately not going to do some home job haha. i looked on wikipedia and it said exactly what you said. i dont understand why people on here have such different opinions on the matter in my head cai's are either helpful or not haha im sorry if i make no sense
Banned
Google "Laminar flow" I think that's spelled correctly.
Nothing wrong with home jobs if you do your research. In fact, in most cases you can get it to work better then anything you'll buy.
VIP Member
A bare Pod filter in the engine bay (not enclosed) is worthless as it draws hot hair from the engine bay.
An enclosed pod shields the intake/pod from the heatsoak/hot engine bay air, thus allowing the majority of air to come through the pod from behind the headlight which is generally alot cooler (cooler air = denser with oxygen = more power)
A Panel filter works the same. However the problem with the stock airbox/panel filter is the flow side of things (See soop's post above)
But this is all two and one half dozen the other ... meaning a bolt up CAI is really going to make that little difference it's not worth thinking about.
Modifications yield their true potential when they are all paired as a combo, i.e. if you put a catback on, you've gained little, change the whole exhaust, you gain alot more.
Think wider than just a little mod giving you some BS marketed 5kw gain or greater fuel efficiency etc etc.
Banned
Pods also disrupt the air flow, causing turbulence which will effect the MAF's ability to read the true volume of air.
So if you use a pod, have it as far away from the MAF as possible.
A big panel filter would work better IMO.
soop, not trying to hijack the thread but is the standard otrcai on the VT no good?
Banned
IMO no.
Run it on the dyno, then pull it off and run it again.
I'd put $50 down saying it doesn't do a thing.
More again, invest in a temperature sensor and digital thermostat from Jaycar and plum it into the air intake and measure the difference in intake temps. This will tell you for sure.
Again, I'd confidently put money on the difference being less then 5kw and/or 10degrees.
yea i got the exhaust sorted headers cats and the rest of the system, got a 69mm throttle body on rockers to put on when i get the chance it still has the stock intake tho and i looked at the mace on and a pamphlet for the ss inductions.
so with what i have already done to my car the cai will make more of a difference
Banned
Nothing you'll really notice mate.
Of course sales men are always going to tell you otherwise
i googled that laminar flow soop made sense after a few reads then reading slowly out loud hahaha
bahaha yea they always will
what would you say to people who say that there cai gave them this and that is it just in their head like an aphrodisiac kind of thing
Banned
LOL, you're approaching a very contentious subject here mate.
Personally I think its purely a placebo effect.
I've no doubt that a CAI will influence the running of a motor but the real life effects aren't noticible to the driver. I've come to that conclusion after doing modification to lots of differet cars and motors.
As I said before, CAI is misleading the most notiable effects will be felt due to an improvement in flow not air temperature.
Improve everything between the airbox and the intake valve and you'll be on a winner.
All nitrous oxide does is make the air going into the cylinders more dense which gives more horsepower.Its the same with cold air,the colder it is,the more dense it becomes, which ends up making more horsepower...
Banned
Well the name says it all.
No2
1 Nitrogen molocule + 2 Oxygen molocules.
Thats why you need a beefy fuel system to compensate!
yea placebo is the word i was looking for lol.
"Improve everything between the airbox and the intake valve and you'll be on a winner."
im assuming the larger TB is a start, then i guess larger diameter piping between the maf and TB is a good direction to go in???
Its not the nitrous that burns,nitrous is a non flammable gas,it just makes the incoming air more dence for a bigger bang.And I think its N20.
on holiday
NOS adds O2 it is an oxidizer IE releases oxygen when its injected into an engine and heated hence why you feed petrol in with it so you dont just lean the car out
I tune the oldschool way fear on the passengers face and knuckle colour cant go wrong
tabbacco is still my favorite vegetable
It also lowers the inlet manifold temps heaps when its released into the manifold as it turns from a liquid to a gas.
Banned
Well, I was playing around modifying inlet plenums a while back. Don't see much point using a larger TB when the internal port on the manifold is filled with casting flash and about half the ID of the TB.Originally Posted by VUte89
If you change the intake pipe avoid anything with corogations.
After all that effort you'll probably still notice bugger all difference.
ahhh so you could have the biggest throttle body in the world but it doesnt matter if the plenum inlet is still the same size is that what you mean
Banned
Pretty much, again another thing people will dispute. Most of the time these people are the very same people that pay hundreds of dollars for "CAI" setups they could make themselves for $40.
it makes pretty good sense actually so if i was going to makw my own the basic rule would to be to let as much air a possible flow smoothly in and then happy days
Banned
Basically.
Consider the air a milk shake, the intake tube a straw and the engine, you.
How hard is it to drink a milk shake through a spiral straw?
Before you jump into pulling things to bits good "fluid Dynamics" and have a quick read of the basic principles. From there on you're apples.
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