Wot is This ????

[crankshaft]

Hi;

Does anybody have any idea what this thing is ??

 m http://www.peter-cruickshank.com/mr2stuff/e68.jpg m

PeterC

[MRMike]

Without a description i'd say it looks to be very similar to the Ecotek CB26P

 m http://www.ecotekplc.com/technical.htm m

[Anonymous]

I am afraid I don't but whatever it is, that sort of advertising would make me suspicious - kind of car equivalent of snake oil   s:wink: :wink: s:wink:

[GSB]

The device works by taking advantage of an effect involving differential pressures known as the 'Venturi' effect, widely used in engineering for flow meters, gas-fired water heating systems and most famously in jet engines. The design of the device, which incorporates two perpendicular tubes with constricted throats conjoined into a T-junction, creates a change in pressure and velocity of the airflow in the centre of the device as the air traverses the tube.

As someone who spends his entire working day up to his armpits in flowmeters, gas-fired water heating systems and not very famous at all jet engines, and has done for the last 10 years, I can honestly say that this is all... ahem,... Bollocks.

All it is a device to let extra combustion air into your inlet. Because this air has bypassed your Air flow meter, the engine will effectively run lean in open loop mode. In closed loop control mode the O2 sensors will detect the surplus of O2 in the exhaust and try to tune it out. In open loop the ECU will revert to its base map and due to the engine having excess combustion air it will run lean, which in turn increases the chance of detonation, and increases combustion temperatures. So to sum up.... Its Bollocks...

[MRMike]

As someone who spends his entire working day up to his armpits in flowmeters, gas-fired water heating systems and not very famous at all jet engines (gas turbines), and has done for the last 10 years, I can honestly say that this is all... ahem,... Bollocks.

Yeah maybe I should have mentioned that I wouldn't recommend buying the Ecotoek, whilst some mags have said it's amazing I personally think like GSB it's pretty crappy.  You also need to cut the brake pipe, and I've heard a lot of hushed reports of peoples brakes not working at all with the device fitted. I'd steer well clear

[Tem]

Actually those things work just fine, as long as you remember what their main purpose is (to make money  s8) s8) )

[GSB]

As someone who spends his entire working day up to his armpits in flowmeters, gas-fired water heating systems and not very famous at all jet engines (gas turbines), and has done for the last 10 years, I can honestly say that this is all... ahem,... Bollocks.

Yeah maybe I should have mentioned that I wouldn't recommend buying the Ecotoek, whilst some mage have said it's amazing I personally think like GSB it's pretty crappy.  You also need to cut the brake pipe, and I've heard a lot of hushed reports of peoples brakes not working at all with the device fitted. I'd steer well clear

Indeed. I was just getting to that...

By "cleverly" introducing this device into the vacuum line that runs from the inlet manifold to the brake servo on most cars, you are in effect introducing an air leak to this system. The reduced vacuum caused by this means that you have to put more effort into the pedal. Depending upon the valves mood, (its not linked up to the Engine controls so it pretty much does its own thing) you either get functioning brakes, or brakes that require Fred Flintstone to press the pedal for you. Just what you always wanted when barrelling into a corner... Random Brakes.

Just in case no-ones got it yet, Dont buy anything like this. It invariably doesnt work, and can cause an awful lot of trouble with your engine and othe vehicle systems...

[Jap GT300]

I know a lot of people don't think the Ecotek is any good and on reflection I probably wouldn't have bought one.  But I have had it installed on 2 seperate roadsters for 4 years with no adverse effects.

[Anonymous]

I have to disagree with the POS shit point of view on the Ecotec valve. I had one on my last car for a couple of years and found it sharpened up engine response and gave a noticeable improvement in fuel economy with no adverse effect on braking performance.

The point of the unit is to introduce turbulence into the inlet manifold in order to improve combustion rather than to simply provide a means of allowing more air into the intake manifold than is being measured by the MAF sensor. If you look at their web site you will also find that any claimed improvements are backed up by tests carried out by the ministry of transport.

Don't get me wrong, putting one of these on your motor won't give any measurable increase in BHP but for about £50 it does make a difference to throttle response and a measurable difference in fuel economy, which depending upon mileage, means that the unit will have paid for itself in a relatively short period of time. I'm thinking of getting one for our "2" and will keep anyone interested updated

[MRMike]

I have to disagree with the POS s**t point of view on the Ecotec valve. I had one on my last car for a couple of years and found it sharpened up engine response and gave a noticeable improvement in fuel economy with no adverse effect on braking performance.

The point of the unit is to introduce turbulence into the inlet manifold in order to improve combustion rather than to simply provide a means of allowing more air into the intake manifold than is being measured by the MAF sensor. If you look at their web site you will also find that any claimed improvements are backed up by tests carried out by the ministry of transport.

Don't get me wrong, putting one of these on your motor won't give any measurable increase in BHP but for about £50 it does make a difference to throttle response and a measurable difference in fuel economy, which depending upon mileage, means that the unit will have paid for itself in a relatively short period of time. I'm thinking of getting one for our "2" and will keep anyone interested updated

Well Im also only speaking from experience, I know of a number of garages that categorically will not fit them. And this experience says that for a slight improvement in throttle sharpness, as you said no BHP gains really, it's not worth messing with the brake pipe, as the results could be catastrophic.  I only mentioned about the Ecotek as i didn't want people to feel that by posting the Ecotek i was advocating its use, it was merely meant as a heads up.  I'm glad to see GT and yourself haven't had any problems and I hope god forbid everyone who has one never has a problem.

Just my opinion ! I wasnt telling anyone what to have on their cars  s:wink: :wink: s:wink:

[mph]

If they worked as advertised, why don't car manufacturers, whom spend millions on flow analysis, don't already do this?

[aaronjb]

If they worked as advertised, why don't car manufacturers, whom spend millions on flow analysis, don't already do this?

Must be the same reason they dont' put any of those miracle cure oil additives in their engines Martin, they're mean...  s;) s;)

Aaron (not a fan of oil additives  s:D s:D )

[GSB]

If you wanted to induce turbulence in your inlet stream, the best way would be to have a very convoluted inlet tract, and plenty of excess casting flashing and rough surfaces in the manifold and head.

Which, more by fluke than design, the '2 already has plenty of...

[Tem]

There was this test in local magazine a year or two ago. They tested all these wonder-gadgets, like this one and the magnets around the fuel lines and grounding cables and whatever.

The grounding cables worked on a car from 60's. They poked around a bit more and noticed that just installing a decent stock wires made the same difference and were only 10% of the hypersuperextrabrightredcables.

They did find one thing that actually reduced your fuel usage! A soft sponge that was put behind the gas pedal  s:lol: :lol: s:lol:

[crankshaft]

Hmmmm.....

Well thanx for clearing up what it is, there's obviously a lot of different opinions on whether it will bring any benefits, so i guess I will skip this one !

I guess I had better not mention the 'cyclone' then  :-) :-) :-)

 m http://www.cyclone2.co.kr/ m

Cheers

PeterC