4GEN Liberty/Legacy - RAM INTAKE SYSTEM

[alexeiwoody]

So, driven in the same manner, could we expect an increase in fuel economy with this CAI??

(Please say yes, it makes it a lot easier when justifying mods to the finance department.)

Got any updates on development/production??

Another (longer) sound clip building & dropping revs would be awesome too!

To a degree (very very small degree) - yes!

In theory:

- less resistance in the air intake equals less energy wasted by the engine trying to get the air in, resulting in better efficiency
- if this intake somehow manages to keep temperatures lower, (I won't comment on the likelihood of this over OEM, but if it is done and proven then it's a very good intake indeed) the engine will make more power per revolution resulting in better efficiency

In practice you won't notice it But it won't hurt!

[Tradewind]

At WOT this intake allows the engine to fill its cylinders more fully - the ratio of air and fuel must remain the same - can you see where you see what this means??

The amazing 996 type intake sounds above 5000rpm are intensely addictive - does high rpm operation conserve fuel???

The engine revs without breathing limit

<4000rpm there is no sound difference to stock at all during normal driving - it's perfect on that score

Fuel consumption is governed by your accelerator foot and the tune itself

Up to 3000rpm the engine breathes as easily through both CAI and stock - no difference

Decide what you like - and don't like

[Out6ack]

I realise I won't actually be saving any fuel because of spending much more time having fun in the upper rev ranges, but I meant all driving being equal. Now that it can breathe properly, won't the engine as a whole be working increasingly easier & therefore more economically once over 3K? The higher the revs, the greater the difference over stock in the effort required to get a lung full, therefore, the more I rev it, the more I'll save!!

[alexeiwoody]

I realise I won't actually be saving any fuel because of spending much more time having fun in the upper rev ranges, but I meant all driving being equal. Now that it can breathe properly, won't the engine as a whole be working increasingly easier & therefore more economically once over 3K? The higher the revs, the greater the difference over stock in the effort required to get a lung full, therefore, the more I rev it, the more I'll save!!

The engine will be working more "efficiently", not more "economically".

As I explained - you will have slightly better power per unit of fuel as you have less restrictions. Similar to freeing up the exhaust.

As Tim explained you will use more air....so the ECU will add more fuel to compensate.

In summary, it's a good upgrade for other reasons. Fuel efficiency yes, fuel economy no. Get a good tune and tyres and your economy will be sorted.

[Out6ack]

Cool. Thanx for th lesson.
I guess I just always thought that efficiency and economy went hand in hand. Almost as if you couldn't have one without the other. A scenario where driving up the same long hill at say, 90kph, that you would use less fuel post mod as the engine will be doing that 90kph easier i.e, at lower revs -lower revs=less fuel.

Believe me, I'm not buying this mod to save fuel, it just makes it easier to justify on a tight budget if it does!

[alexeiwoody]

You weren't wrong either Having more torque can net you better economy. As you only need so much torque to get the car moving and if you have more torque per rpm - you can move your car for less fuel.

This is most important at 600-3000 rpm, as that's when you are starting the car off lights/traffic or cruising on the freeway.

If this intake mostly improves higher rpm and allows you to use more fuel and more power there....in other words it will help net better economy mostly if you drive like the Stig

[Tradewind]

Here is another file

iPhone 5 wedged in above steering column and below dash - recorded using the sound record function

From my house, around a corner, down the road for a couple of gears, slow down, turn around and back same route to house.

Drivers Window is open about 100mm

You will pretty quickly realise there is more road noise and noises within car for the most part


http://vocaroo.com/i/s1k2GLys06wQ

[Out6ack]

Holy Phuk - that sounds awesome!
And your exhaust is completely stock apart from headers right?
Brings a smile to my face just listening to it
Can't wait..

[Tradewind]

Yes

Stock exhaust apart from headers - this thing (my car) is silent for sure apart from induction noise, there is nothing masking or over riding the induction sound apart from some wind noise from window being down. Pure sounds from the CAI otherwise

[Vader's_3.0r]

Sign me up for sure!

[west_minist]

Tim,

Any updates on the CAI?

I have a few customers I can see any improvements using the CAI.

[Tradewind]

Definitely some updates

Hardware is enroute to Raptor

Could be in a position to ship out 4 RAM CAI kits in approx 2-3 weeks time

[west_minist]

And which already sold. It would be interesting to see how it has affected the MAF tuning.

Cheers.

[Tradewind]

Keeping this message lit up - its very critical as the CAI is a bolt on but will not drive until tuned

TAKE NOTE - YOU ABSOLUTELY NEED A COMPLETE CUSTOM TUNE IN ORDER RUN THE CAI

XRT (Ed) and KiDo (matt) can do this for you.

Either is proficient and I currently run a tune that is a combo of both - and its very good

[Tradewind]

CAI Parts rolled in this afternoon

This item can now get underway and into the limited first production run. I do have a significant manufacturing issue to sort out, will work on that tomorrow and hopefully resolve it