adventure air setup mod - comments please

[RafRaf]

Hi. I'd like to solicit your comments on this setup. It is supposed to add in air into the engine to improve exhaust (in terms of the smell coming out of the exhaust) and maybe add a little power (?)...

[notEworthy27]

turbo? :D

[RafRaf]

not sure how to categorize... I'd like to solicit comments especially from those more experienced/knowledgeable in diesel engines before I try this myself...

[jim]

ano yan parang intercooler?? hehehehehe

anyway if you can get cooler air into the engine yup there will be improved performance pero dun sa setup na ipinakita mo, anong klaseng cooling fan ang ginamit???

[mazdamazda]

looks like the turbo-zet thingie... wherein they placed a "cooling fan" (the size of it is similar to the cooling fan of your computer.

for one, it can actually cause partial blockage of air into your engine at high rpm. at idle it might help but are there test results to verify this claim?

[20vanda01]

looks like the turbo-zet thingie... wherein they placed a "cooling fan" (the size of it is similar to the cooling fan of your computer.

for one, it can actually cause partial blockage of air into your engine at high rpm. at idle it might help but are there test results to verify this claim?

I agree with sir MazdaMazda, if the airflow needed by the engine is faster than the rate of airflow the fan can supply air, it may eventually choking airflow supply. Pero kung 'yong blades nung fan ay mas 'see-true' (mas maliliit) kesa dun sa standard CPU fan blades, baka okay lang kasi kung di na makapag-cope up 'yong fan sa airflow, dere-deretso na lang 'yong hangin.

[ian_rex]

parang turbo a. ok, let's just call it a 'forced induction', it's not necessary a turbo but the air is induced to the air intake. may effect ba sa power? pakiwari ko, di kasing effective ng turbo yan pero may tulong na din kahit paano. i wonder how it behaves at high-rpm's.

[RafRaf]

i guess it's not really meant to give any power boost... the person who shared this mod wasn't really after extra boost... he was concerned more about the exhaust... his wife complained about the smell of the exhaust of diesel... supposedly with this modification, the 4d56 engine's exhaust doesn't emit the usual bad odor...

[jim]

i looked it up sa web and it costs roughly 6K to 16K depende sa brand. 'induced air intake ' is what it's called. if i have the money i won't buy this. tests show only 6% increase in power (kung totoo ha) pero that measly increase i would just buy a better cold air intake tube and filter.

[RafRaf]

i looked it up sa web and it costs roughly 6K to 16K depende sa brand. 'induced air intake ' is what it's called. if i have the money i won't buy this. tests show only 6% increase in power (kung totoo ha) pero that measly increase i would just buy a better cold air intake tube and filter.

yup, he did say that those gadgets are super expensive and he doubted it gave the boost that they claim... but driven with the desire to reduce the odor emitted by his Adventure, to which his wife complains about, he got industrious and did this configuration with just using a surplus PC cooling fan... he gave some kind of spec about what fan to use, but I don't readily recall... anyway, he shares that odor is greatly reduced that he could check underneath his Adventure from the back without choking on the exhaust...

[ian_rex]

aha. alam ko na! oo nga, para di masyado mausok! :D kasi napansin ko sa diesels kapag binibigla ang tapak sa accelerator pedal, dun umuusok. bakit? kasi hindi masyado nasusunod ang krudo. whereas, if there is sufficient amount of air in the air/fuel mixture, mape-prevent itong pag usok na ito. :D

[mazdamazda]

the problem is that they can only SMELL the exhaust when the vehicle is in idle.

but what happens when the engine is already moving as it may already block the passage and cause the opposite by enrichin the air-fuel ratio.

[RafRaf]

hmmm... good question there... so what you are saying is that this may only be effective in idling but may be a cause for a different problem when the vehicle is in motion as this may serve as a blockage in that situation...

[otomatic]

kung naging mas mausok ka sa hard acceleration at sa high speed after installing that gadget, eh...hindi ayos...
sana determined ang max. air volume na kayang ibigay ng fan, that matches the air intake requirement of the 4d56 engine...

[RafRaf]

I've shared the comments here with the person who did the setup. Here are his comments...

"The comments are quite correct as expected. The objective was not to seek any increase in power, minimal or drastic, but more of a more efficient burn at idle and during the engine's roll-off from a standstill like at the start of acceleration.

I had considered the possibility of air blockage at high speeds, to which I have always maintained that nothing beats a clean and efficient air filter, something like the ones used for racing mods. The trick there is to keep the air through a racing air filter as cold as possible.

Overall, on high speeds, there would be some physical restrictions at the air intake hose. But for those who've seen or used a "turbonator" or vortex valve, the fan would the act as a "swirl-device". One option that I haven't put in the set-up yet is a switch to turn off the fan at high rev's through a micro switch adapted to the accelerator linkage. Not only will this switch extend the lifespan of the fan, it would allow the fan to act as a static vortex valve at high rev's.

My guess is the physical restriction of the fan at the air intake side would be about the same as the physical properties of a brand new air filter element after 2 -3 weeks of use.
Bottom-line, I suppose, is how much air is eventually drawn into the induction system at all engine speeds. "

He'd be happy to hear more comments or suggestions...

[mazdamazda]

swirl device? turbonator? vortex valve?

- Engines already have high levels of turbulence, and the physics is well understood
- Adding more turbulence can give only a tiny fuel economy benefit - this is proved by experiment
- Ignition must be adjusted to suit the faster burn, or the effect will be worse economy
- Increased turbulence at full load will most likely damage the engine unless the ignition is retarded
- Anything in the inlet manifold is extremely unlikely to affect in-cylinder air motion anyway

In a nutshell, a swirl device (as used by selectively by MB, Audi, Ford) will only work if it is located close to the combustion chamber. If it is still located too far away, the swirl generated would be negated as the air travels along the air hose & intake manifold. Plus, there is no verifiable results if a swirl effect is actually being produced - and if there is a verifiable swirl effect the ignition timing should also be adjusted.

Btw, the airspeed past the throttle is already around 200-300 meters per second at part-throttle. Am not too sure if a computer fan can generate that much airspeed.

[notEworthy27]

as said in the 2nd to the last post, it will act as a less retrictive air filter....I doubt it...since this will also act as a hindrance, even when not in motion...but then...to mazda's post...well that is more understandable.

[RafRaf]

so there is still a glitch to the design that needs to be addressed... hmmm... any suggestions? yung pwedeng DIY lang din... yuo know, pang-hobby kind-a-thing... there must be a way to make it work better...

[notEworthy27]

tanggalin ang filters? :D joke joke joke!