Technical Power Boost Valve??

[Southey]

oh rite cheers for that!!

I need all the help i get because i aint very good at technial stuff.

Oh and il def get a friend to help me out lol.

Il will have a go at this throttle body changing if i decide to keep me cinq.

thanks for your help guys!!

 

[paul_treg]

Hi,
Found a bit of info that might be useful to you, while consulting the book of Haynes, I found that the fuel pressure on the 1100cc is 1 Bar and on the 900cc its 1.1 Bar, as far as I know the regulator is on the injector housing and both should be interchangeable.

So the point being, if you take a fuel pressure regulator from a 900 and fit it to a 1100, this will have the similar effect to fitting a FSE power boost valve by raising your fuel pressure.

P.s. I have the fitting instructions for a Ford engine for a FSE Power Boost Valve in electronic format(pdf) somewhere if anyone wants them

Paul T

 

[HP]

Hi,
Found a bit of info that might be useful to you, while consulting the book of Haynes, I found that the fuel pressure on the 1100cc is 1 Bar and on the 900cc its 1.1 Bar, as far as I know the regulator is on the injector housing and both should be interchangeable.

So the point being, if you take a fuel pressure regulator from a 900 and fit it to a 1100, this will have the similar effect to fitting a FSE power boost valve by raising your fuel pressure.

Paul T

Sorry to disagree.
All that will happen is that the engine will run rich for a miniscule amount of time, then the lambda sensor will shorten the injector pulse to return to the standard map running conditions. If you change the fuel pressure enough, you'll get the injection warning light on as the ecu won't be able to adjust things sufficiently to compensate.

The only way to make the car run weaker or richer is to remap the ecu.
You could fiddle with the signal from the lambda sensor - not worth trying though as if you get it properly wrong you will cause engine damage.

 

[paul_treg]

For a standard engine you are spot on, but for a car with a K&N and Performance exhaust, which allow in more air, this should help to correct the fuel air ratio, a remap as well should tidy the ratio up, but for a remap to work properly, something mechanical will have to change.
You can tell the computer to do anything you want, but if the mechanical side can't cope then, you won't get the desired results.

Paul T

 

[HP]

Maybe, if set up properly on a rolling road with the correct calibrated equipment, but adjusting the fuel pressure without being able to gauge it's effects might lose you as much power as the K&N and zorst add.

 

[paul_treg]

Its just an idea for a cheap mod, but anyway I've found some other info from a porter manual that says they both run the same pressure(0.98 Bar) so may not be an advantage anyway.
I think the answer to another question on this thread is that a Cinq runs a low pressure fuel system, while FSE supply kit for high pressure systems, so that may be why they are not listed in the catalogues.

Paul T

 

[rallycinq]

I agree, too much fuelling will do just as much damage as too little. Assuming the standard kit is in fine working order, letting a bit more air in with the K and N will be taken care of by the ecu adding more fuel. If it can add enough to get it started, then it has plenty in reserve to achieve the correct ratio even with a different air filter.

Cheers

D