Another Ebay Con?

[Way2go]

Another one for electronic buffs.

20 BHP Gain by fitting 1 resistor? How does this work? What's the downside?

http://cgi.ebay.co.uk/20BHP-MOD-CITROEN ... dZViewItem

[Vanny]

tricks the engine management and makes it pump in more fuel making in run richer, great for a little increase in bhp, naff for responce and economy and probably bad for the engine in the long run!

Might add they only work on cars with ECU (motronic and jetronic is suspect), and they don't work on diesels (suprise) even though some suppliers will tell you they work every car!

And a final thought on the matter, you can manually increase the fueling from the AFM module without the use of the resistor!


It's not strictly a con as you do get somehting out of it, and you could see an increase of 20bhp if the car is already running lean, but tbh its a scam given as you can do the mod without the resistor!

[cavmad]

"It`s not a chip". Too effing right it`s not a chip. Chips cost big money and are usually properly made and tested. What this dude is selling is part of a central heating system which cost pennies, and if/when your engine blows apart you sure won`t get any recompense.

[Way2go]

if/when your engine blows apart you sure won`t get any recompense.

Dead right Cav!

Someone else selling the same thing described its operation:

"[How does it work?

The module modifies any standard ECU by telling the ECU that the incoming air in the intake system is cold and so advances the ignition to compensate producing more power. In many cases fuel economy is increased too. Power is increased by up to +20BHP and torque is increased significantly.]"

Why would manufacturers introduce such temperature control if it could safely and effectively be removed as a cost saving?

Another gadget (more substancial) making claims on improving performance without being a chip:

http://cgi.ebay.co.uk/CITROEN-all-EFI-m ... dZViewItem

claims:

"[Fitting these valves has a very similar effect to having a 'Chip Upgrade' but without having to modify the electronics or ECU. These units are mechanical and are considered maintenance free.]"

Actually, reducing the fuel economy of the GTi in these times of high petrol prices is not on my wish list and would presumably be the biggest change you would notice.

[cavmad]

I believe Power Boost Valves do make a slight difference but only along with other fuel sapping mod`s such as K&N filters and the kind of exhaust that wouldn`t look out of place on a Daf XF.

[jeremy]

BX TD was the state of the art as diesels went when it was made - if any mod would have delivered better, more reliable or economical performance it would have been used. Same goes for 16 valve - as nothing produced 160 BHP from that capacity - and indeed some turbo's didn't either.