CAI Question

[ryama]

Seeing all the post on CAI's, can someone please explain to me. What the advantage beside the eye candy appeal is? Im picking up Daves 270 Race setup this weekend and would like to know would it be a good idea, to also get the..." COLD AIR INTAKE". That is what CAI is the short form for I think.

Always learning.

 

[ROCKERDAN]

Seeing all the post on CAI's, can someone please explain to me. What the advantage beside the eye candy appeal is? Im picking up Daves 270 Race setup this weekend and would like to know would it be a good idea, to also get the..." COLD AIR INTAKE". That is what CAI is the short form for I think.

Always learning.

Quite abit actually....free flowing intake thru a k&n style filter is just one aspect. The stock filter is foam which is not free flowing.

next, is the intake channels ABOVE the filter box(that sits on your guard) The air must suck from the top hood screens, down thru underhood channels, and some of which are very very narrow.

So even a CAI kit that used something as tiny as a 1" OD pipe(not that you would want to go that small) would still allow for much more flow then the stock design.

Now, take all those previous things...and add to that, the fact if you design it well....you can have it right up near the front screen where COLD wind is pouring directly into it. Hence the name CAI.

And a side bonus is, you have removed the massive box on the guard, and now the cold air that enters the nose area, flows right down across clutch area and out the small exhaust vents at your left foot. This is one reason I aim to keep the filter and intake tube size down some, and in the design will aim to have space for cold air to get thru easily, not blocking the vent entirely with a massive filter.

Not too mention tuners have said long time back, that the response is felt right away, with quicker spool, a tad of overboost, and AFr changes in readings....all things that can make more HP if used, but need a tune to take advantage. DO NOT RUN CAI w/STOCK ECU.

Could be one of the best bang for buck items, and if you make your own, much cheaper then just about anything we buy for these sleds.lol

Dave has one at one of the best prices if you are dealing with him already, go for it.

Dan

 

[ryama]

Quite abit actually....free flowing intake thru a k&n style filter is just one aspect. The stock filter is a foam which is not free flowing.

next, is the intake channels ABOVE the filter box(that sits on your guard) The air must suck from the top hood screens, down thru channels, and some of which are very very narrow.

So even a CAI kit that used something as tiny as a 1" pipe(not that you would want to go that small) would still allow for much more flow then the stock design.

Now, take all those previous things...and add to that, the fact if you design it well....you can have it right up near the front screen where COLD wind is pouring directly into it. Hence the name CAI.

And a side bonus is, you have removed the massive box on the guard, and now the cold air that enters the nose area, flows right down across clutch area and out the small exhaust vents at your left foot. This is one reason I aim to keep the filter and intake tube size down some, and in the design will aim to have space for cold air to get thru easily, not blocking the vent entirely with a massive filter.

Not too mention tuners have said long time back, that the response is felt right away, with quicker spool, a tad of overboost, and AFr readings....all things that can make more HP if used, but need a tune to take advantage. DO NOT RUN CAI STOCK.

Could be one of the best bang for buck items, and if you make your own much cheaper then just about anything we buy for these sleds.lol

Dave has one at one of the best prices if you are dealing with him already, go for it.

Dan

Thank Dan..I guess Dave if your reading this, put one on the shelf for me.

 

[**sj**]

Seeing all the post on CAI's, can someone please explain to me. What the advantage beside the eye candy appeal is? Im picking up Daves 270 Race setup this weekend and would like to know would it be a good idea, to also get the..." COLD AIR INTAKE". That is what CAI is the short form for I think.

Always learning.

actually ...on this sled you pretty much have it correct...eye candy....the stock airbox and filter element flow very well....the biggest restriction being the long intake runner to the turbo going across the front of the machine...but so far nobody has figured how to get around that...

now possibly with a front facing filter and at higher speeds you might get some rm air effect but again the bottleneck is the runner and its bends..

you dont even get the sound of the turbo unless you get it out the exhaust side say with a straight or side pipe ...

 

[IH8CROWS]

actually ...on this sled you pretty much have it correct...eye candy....the stock airbox and filter element flow very well....the biggest restriction being the long intake runner to the turbo going across the front of the machine...but so far nobody has figured how to get around that...

now possibly with a front facing filter and at higher speeds you might get some rm air effect but again the bottleneck is the runner and its bends..

you dont even get the sound of the turbo unless you get it out the exhaust side say with a straight or side pipe ...

I think I'll go with what TD says.
It make quite a bit of difference per his testing.
There I tooted his horn. LOL

 

[**sj**]

I guess I should have worded it differently..as you go up in boost it matter more..

 

[Dieselxtx]

Stick it out the hood if you want to here the turbo!

actually ...on this sled you pretty much have it correct...eye candy....the stock airbox and filter element flow very well....the biggest restriction being the long intake runner to the turbo going across the front of the machine...but so far nobody has figured how to get around that...

now possibly with a front facing filter and at higher speeds you might get some rm air effect but again the bottleneck is the runner and its bends..

you dont even get the sound of the turbo unless you get it out the exhaust side say with a straight or side pipe ...

 

[cannondale27]

I remember the difference just removing side panel,box lid and filter made! Not saying it's safe but sure as heck made a difference! Cheap free experiment.

 

[**sj**]

View attachment 130806
Stick it out the hood if you want to here the turbo!

looks like your sled has a wooody! lol

 

[Dieselxtx]

looks like your sled has a wooody! lol

With a TD tune it’s hard not to get one riding it!

 

[Yamarus]

Is it possible to install cai without configuring ECU? Will it damage the engine?

 

[bleedyamaha]

Is it possible to install cai without configuring ECU? Will it damage the engine?

Yes put a commander V fuel controller. I have the cai and exhaust without messing with the ecu.

 

[Kuzzy]

Is it possible to install cai without configuring ECU? Will it damage the engine?

I'm sure the experts will be chiming in soon, but I would think that you would lean out the motor too much by putting on a cai and not touching anything.

Saying that, I have seen the mountain guys put on an exhaust can like the ggb, without touching the fuelling, and those sleds still seem to be running fine. I know they are making more power because they need more weight in the clutch arms. So I am not really sure where to draw the line.

 

[NYTurbo]

CAI will lean things out on a cold day especially if your doing a good pull. GGB cans usually don't flow worth a crap.