Regarding Cyclone

[Domo]

Hi all

Would anyone support the use of cyclone? I read some post here and it mention that it is only effective when u put a minimum of 2. I went to the workshop at Zion road and they say i can only put one.... right at the carbrutor...

[Phochem]

get it only if its cheap... tink only expect gains in the high end, 'cos more air for it to "twist". If u r still using stock airbox and filter... tink can forget abt it.

[Domo]

But why they say i can only put one har?

[Apollo]

no need to put... useless stuff.

 

the air intake duct itself is small. it has a large turbulence condition inside, the bigger the turbulence, the larger the flow resistance ard the walls of the pipe, the lesser the amt of air r able to pass thru.

 

this type of product claims to cause air to swirl ard inside the pipe. fact is too much turbulence to b able to control any swirling. want more air, use a turbo kit and standby $500 cash to pay fine.

[Hattee]

Yes and no. Cyclone, surbo and the likes do impede initial airflow. They effectively slow down pickup from standstill if you are not throttling hard.

 

However, we cannot rule out the resultant swirling effect (particularly during cruising) draws in more air. That's why can improve FC if you bear with trade-off without harder throttling. Compare the passing wind and rolling tornado, one can only sweep debris while the other pulls up trees. Surbo can be quite powerful if you able to set the right condition for the swirling to compress momentarily.

 

Technically, air swirling increases flow dynamics but price to pay might be short moment of initial air lag.

[Apollo]

well, it is a suggestion tat the poll itself is a crap. at least other polls r more honest.

[Hattee]

What people said here, guess you believe them. But difference between passing wind and tornado seems obvious to me.

[DarkLord]

As Genie would say... "Snake-oil"!

[Ddt121]

that's what they always say.

 

anyway, i really wonder if those who replied had tried it b4.

 

for me, i am using two of them. it is not bad, but definitely it is limited if u compare to turbo chargin.

[Ddt121]

i dont think it is a fair analogy that u r offering here.

 

turbo is forced induction and cost lots more than the cyclone. on top of that, in order to TC, u need to modify quite a number of parts.

[Apollo]

cost is relevant to performance. which is why a 1000cc cannot fight with a 2000cc car.

 

as said before, there is no gain with cyclone. to improve, u need to smooth the surfaces to reduce resistance. u need bellow mouth to increase the intake area.

[Ddt121]

cost is relevant to performance. which is why a 1000cc cannot fight with a 2000cc car.

 

which would explain why comparing cyclone to turbo is a poor analogy

 

as said before, there is no gain with cyclone. to improve, u need to smooth the surfaces to reduce resistance. u need bellow mouth to increase the intake area.

 

i am using cyclone now and there is gain. have u tried it before?

[Hattee]

If a person says petrol cools engine as much as sweat cools the body, any different between him and Snake Oil?

[Apollo]

nope... cos in case of turbo, the forced induction = guarantee airflow rate. in a natural aspirated car, u r merely hoping the cyclone thing will inprove airflow but i'm saying using laminar flow formula, it does not. and using Computational fluid dynamic will easily prove my point.

 

try taking out the cyclone. and u will realize there is no difference. the marginal gain everyone experience over short period of time is most likely due to the wearing of tyres which has experimentally proven to increase FC by 5%. further improvement can b made if u pump up the tyre to 10% above recommended pressure and even further improvement if u uses good engine oil with positive oil pressure.

 

all these r backed by vindicated experiments after experiments, not fr suppliers but recognized labs and end users as well.

[Ddt121]

nope. what i am saying is that with that type of cost, obviously it is an unfair comparison between the two.

 

from all your backings, i had deduced that you have not even tried the product before. i had tried taking out it out before and it makes a difference. my tyres are pumped with nitrogen thus tyre pressure had remained marginally constant.

 

besides, mere improvement of airflow does not neccessitate improvement in performance.

[Apollo]

nope... dun intend to, cos it has no basis.

 

http://www.fuelsaving.info/turbulence.htm

 

in any case, ventilation is quite a primitive and dated topic. there has neber been substantial changes to the way designs r made. all u need is look for indication in buildg ventilation applications.

[Dennisk]

i am now trying one cyclone....i can feel that it really helps from mid to high...i will be trying 2 to 3 later after installing surbo...

[Alant]

For info, Cyclone has been around for more that 10yrs liao.