BOV on a stock computer. Stalling?

[MrBennUK]

Dear all,

I am thinking of getting an ECU plug in tuning mod, which sits on top of the stock computer settings.

This would provide a lot more boost and BHP (+50ish) for the car.

To minimise damage to the turbo from back pressure I was thinking of getting a BOV,

However, I have read that doing this can cause stalling when paired with a stock ECU mapping.

I was wondering whether this is likely to be the case when coupled with such a mod as the one i'm planning on getting.

Anyone had this experience?

Car is a Peugeot 207 gti.

Cheers,
Benjamin

[stevieturbo]

MrBennUK said:

Dear all,

I am thinking of getting an ECU plug in tuning mod, which sits on top of the stock computer settings.

This would provide a lot more boost and BHP (+50ish) for the car.

To minimise damage to the turbo from back pressure I was thinking of getting a BOV,

However, I have read that doing this can cause stalling when paired with a stock ECU mapping.

I was wondering whether this is likely to be the case when coupled with such a mod as the one i'm planning on getting.

Anyone had this experience?

Car is a Peugeot 207 gti.

Cheers,
Benjamin

Dodgy crap "tuning" chips are best left in the bin.

I would be amazed if your car didnt already have a BOV of some sort.

[MrBennUK]

hi mate
thanks for reply
as far as im aware my car has a recirculation valve. I was considering changing to a vent to atmosphere valve, but apparently they can cause your engine to run fuel rich and even stall cars a lot. Was wondering if this really was a big issue?
Don't like the idea of my car running fuel rich either
Can I ask why you're so against the tuning chips? I have read some really positive reviews of people having great success with them on really nice cars. I understand you have more control over the engine with an actual remap, but the main tuner in this area seems to have a really variable track record. Have read some horror stories of irreparable damage being done to peoples cars so I didnt want to risk it. This seemed to have the best of both worlds, changing the power curve of the car, providing more torque at the bottom end and increasing BHP without the risks of permanently altering the ECU. Plus, you get a 2 year engine warranty with it, although I haven't read the small print.

I appreciate the +50 figure is probably a load of crap but if I even got 25bhp with more torque from it that would be ok.
Interested in peoples thoughts

[stevieturbo]

MrBennUK said:

hi mate
thanks for reply
as far as im aware my car has a recirculation valve. I was considering changing to a vent to atmosphere valve, but apparently they can cause your engine to run fuel rich and even stall cars a lot. Was wondering if this really was a big issue?
Don't like the idea of my car running fuel rich either
Can I ask why you're so against the tuning chips? I have read some really positive reviews of people having great success with them on really nice cars. I understand you have more control over the engine with an actual remap, but the main tuner in this area seems to have a really variable track record. Have read some horror stories of irreparable damage being done to peoples cars so I didnt want to risk it. This seemed to have the best of both worlds, changing the power curve of the car, providing more torque at the bottom end and increasing BHP without the risks of permanently altering the ECU. Plus, you get a 2 year engine warranty with it, although I haven't read the small print.

I appreciate the +50 figure is probably a load of crap but if I even got 25bhp with more torque from it that would be ok.
Interested in peoples thoughts

I would generally be dubious about these "remapping" companies...as you indeed are too for obvious reasons. Most are just fly by night people with no tuning knowledge whatsoever who are just flashing in generic crap from feck knows where....and hoping for the best. Many times they do get away with it though.
It isnt what I would ever want for my own car.

Likewise with these plug in chip things. Mainly they will be very limited in what they can actually do...which is of concern and fooling the ecu into making it run differently. Generally not a good approach either.
But again..many do seem to get away with it.

If you have found either to have had good success with known trusted customers then I guess for a cheap upgrade it could be ok. Still not a risk I'd be taking.

IMO find a reputable tuner who can do the job properly on your own car.

As for the BOV, unless the one on your car leaks or has a problem, just leave it there. Although you can get plenty of replacements that route back into the inlet just the same as the OEM one will if you needed that because of airflow meter placement or something.

[Mr2Mike]

MrBennUK said:

hi mate
thanks for reply
as far as im aware my car has a recirculation valve. I was considering changing to a vent to atmosphere valve

If your car already has a recirculating BOV, then there's no need to add anything to prevent possible damage to the turbo. A vent to atmosphere BOV is not usually suitable for engines that use mass airflow sensors (MAF) since you are throwing away air that the engine has already metered, so the ECU will still deliver the fuel that was meant to get burnt with that air, hence running rich and stumbling/hesitation after gear changes.