Tom contacted us from Holland after he had his Renault RTi 2.0 16v fitted by Atec Tuning - he says "Amazing - I got about 150 km from 19 ltrs of petrol and now I get more than 190 km - I still can't believe it!"

Well Tom, thanks for the picture, a lot of people find it hard to believe but the word is spreading, nice to have some European interest!

Below right is Brian Hall's Citroen ZX 16v and here is what he said: "I received the device last Saturday, and fitted it during the fuel crisis, how appropriate! Initially I fitted it to my Citroen ZX 2.0 16v using the spare (test?) connection to the front of the plenum chamber, using about 12" of 10mm fuel tube having removed the tee piece, using some ¼" air line hose to interface to the brass connection with the appropriate jubilee clips. The device seemed to work fine, but in order to make sure I was getting the best possible effect I shortened the 10mm tube to 2", so now with the filter fitted it is only a few mm from the radiator, perpendicular to it.  Once I have done a few tankfulls and established some mpg’s I will let you know how the efficiency is going. So far the throttle response is quicker, and the engine certainly feels like its making the best use of its power (155bhp quoted by the manufacturers). There is a slight loss of engine braking, but that should be easy to get used to by changing my driving style, as I hardly use the brakes anyway it will probably de-corrode them nicely.

For the benefit of other users, the same engine manifold combination is fitted to the Peugeot 306 S16,  405 Mi16 (Dec ‘92-‘94), Citroen Xantia VSX 2.016v (May 93-Jun 95), and some other PSA cars such as the XM, its also a popular engine for 205 modifiers. The later 167bhp engine in the GTI-6/Rallye and Xsara 16v seems to have a metal manifold but I am sure its only a matter of finding an attachment point or using the brake vacuum line. Whatever the case, the device improves low speed idle, especially when hot starting, as far as emissions go I await the next MOT with interest but I will say that the usual sulphurous odour of  the catalyst is not anything like as noticeable as it used to be, which believe it or not used to be a real problem. When you tilt open the sunroof, like most hatchbacks the turbulence carries exhaust fumes forwards and in through the roof. Not anymore, so the device was worth fitting for that reason alone.

Alan Moulding got loads of flack for fitting the device to the MAP sensor on his Renault Megane 2.0 16v Coupe - got into an extended 'discussion' with some armchair mechanic who runs a Renault website and claimed that performance went hand in hand with economy (anybody got a power boost valve?!) and a closing remark from somebody about Santa Pod settled the argument, game set and match Alan! - it's still up there (started 12 June) if you want to look - anyway it worked fine on his MAP sensor but not to be out done Alan fitted it directly to his manifold. 

Below is a picture of Alan and his Megane after some tests at Redline Magazine in May 2001 - click on the picture to expand it - 155 bhp!

Don't do this if you are not a competent mechanic but you can pop out the core plug in the manifold (opposite end to the throttle body) and bolt the CB-26P through it - get a new core plug and make sure it is secure (lots of Araldite by the looks of it) because if it falls out (in) it will act like an open throttle and you'll be grabbing the ignition key in a hurry! Anyway here it is fitted in the blanking plug on the plenum chamber.

Needless to say he's pretty happy with the device and has apparently been fitting them for his friends and relations - here's his uncles Nissan Almera 1.4. where the device just slides into the vacuum servo line without any trouble. If you want to know how he's getting on he's at alanmoulding@hotmail.com

Remember if you're not technically minded then you shouldn't really attempt to fit the device yourself - messing about with manifolds and brake servo pipes is strictly for the professional or at the very least a competent amateur mechanic. Check out our list of Suppliers and Fitters on the 'Sullpliers' page and if there is not one near you, ask for a free brochure by ringing 01483 - 204444 and take it along to your local garage to see if they will fit it for you - if they have a problem get them to ring our help line on 020-8287 3472.

Many thanks to Rob, Brian and Alan (and many others) for their input, help and advice (and, of course the trouble they went to to take these photos and send them in). There are 22 million cars on the road in the UK (and thousands of different models and types) and we simply don't have the resources to give fitting instructions and provide test data on all of them, so the help of other enthusiasts with this new and increasingly popular device is much appreciated - many thanks again!