Paul Crossley provided this review and the fitting details for his Clio RSi 1995, he said:

"Once the valve was fitted, there was an immediate improvement in the driving of the car at low revs in traffic, the usual juddering was drastically reduced (more impressive cos my engine mountings are shot!!). When accelerating, the valve appears to facilitate a much smoother gear change, giving a more pleasant drive.

When accelerating heavily, the power seams to stay there just a fraction longer when changing gear, seemingly reducing the loss of acceleration when changing. This has shaved ~0.5s off my 0-60 time....quite a difference I think!

As for economy, the valve gets the thumbs up to. Usually the car will do ~290 miles to a tank (40 litres), ~260-70 when being a little heavy footed.

Now its getting ~300-10 to a tank....admittedly I have been canning it a little though, so the figures aren't too accurate! I haven't had it long enough to do a fair economic comparison, but I will definitely give accurate figures soon. Once I have fitted the Power Boost Valve, I will give you the figures for that.

The car will be going on a rolling road when having the PBV fitted, they have agreed to test the effect of the Ecotek valve on BHP etc, i'll give you those figures as well."

1. Fitting on this car couldn’t be simpler. Locate the hose going into the inlet manifold from the brake servo - circled above.

2. Cut the hose. 3. Stick in the Valve, securing with clips. The valve has to point down, as there is not enough room between the bonnet and manifold to allow it to point forward.

4. Tune the valve as per the instructions provided.

Please note that the Inlet Manifold is different on older cars. As for later ones I can’t comment, as I have not seen one!"

Thanks Paul - grateful for your input.

David Price - a very experienced motoring journalist who writes for a number of Classic Car magazines as well as the 'Driving' section in The Sunday Times - got us to fit a CB-26P to his superb Rover 827 Coupe; one of the most luxurious (and expensive) cars ever made by Rover.

Although he doesn't normally write about gadgets he made an exception in this case and wrote a piece for the Sunday Times in January 2003. Here is his V6 Honda unit - same engine as the Honda NSX - before completing his research this was his first reaction: "haven't done an MPG check yet but it's made a resounding improvement to the Honda V6's lack of low end grunt - it feels a lot (20% ?) torquier and there's just a touch more up top too - top product".

Thanks David - his final comments appeared in THE SUNDAY TIMES - click here for details.

Remember you can click on any of the pictures on this site to enlarge the pictures - then click the 'Back' button on your browser to return.

Chris Green contacted us with these excellent pictures of the fitting to his Toyota Yaris T-Sport. He said:

"There were no specific problems in fitting the valve except that in its current position, it’s about 16” from the manifold, which is a tad outside recommended limits, but nonetheless it seems to work fine.

The non-return valve that is often spoken of, is screwed into the front wall of the servo canister, so the whole pipe is safely "downsteam" of this. The rear-mounted position of the Ecotek leaves plenty of room for tuning and the fitting of the (look, it matches the car!) silencer, but does make the induction noise rather prominent due to its proximity to the passenger compartment.

The reasons for fitting it so far away are not apparent, but what you can’t see is that the vacuum pipe turns to metal immediately to the right of the Ecotek, and remains that way until shortly before entry into the manifold. The remaining hose, which in the picture is the second one to the right of the right-hand manifold inlet, is heavily curved and short, leaving little room for either fitting, or subsequent tuning. A pity, because the noise would be a lot less prominent there, I suspect, although it’s doubtful whether the silencer could be fitted without chafing on something else."

Then later Chris wrote "About a month ago, just prior to fitting the Ecotek, I drove from west London to Norfolk and back in my Yaris T-Sport and achieved 47 mpg (both on the trip computer AND by running a full-to-full check). To avoid traffic delays, I set off at 5.30 am. I've just done the same run starting at the same time, this time with the Ecotek fitted, and although the trip computer still showed 47.5 mpg, a check of fuel used reveals a real consumption of 52 mpg, which is not far off the 8% gain forecast by Barclay." It's actually 10.5% (47 to 52) which ain't bad on such a frugal motor!


Many thanks Chris.