As you know if been in contact with BSR over the past few days and hyere's what's been said
Your message: 06-09-08 08:55 pm
I have just fitted stage 3 to my Vectra 2.0turbo. I did not purchase the exhaust from yourself, instead I got a custom made one. However it's 3" bore from the downpipe to the split for the dual exit with no centre box(just rear silencers) Will this make the stage 3 slower due to less back pressure as I'm a bit disappointed at the results it has achieved and would like some feedback on this please.
Your message: 06-09-08 08:59 pm
Just to add my PPC number is *****. The car is a 2004 2.0turbo. Could you please check and confirm the map is the correct one please.
BSR: 06-09-08 10:19 pm
When we at BSR develop tuning kits, we always use stock setup on all cars for stage one tuning kits, and BSR exhaust systems for Stage 2 and beyond.
Fitting other exhaust systems, injectors, intercoolers etc. than the ones we have in our tuning kits will tamper with the behaviour of the car compared to when the calibration settings was made during our development.
This will most often result in poor overall performance, boost pressure regulation will be affected causing spikes that in turn often makes the ECU reduce performance due to pinging etc.
As there are a million different exhaust system manufacturers out there, we have no possibility to test them all and providing "special calibration settings" for each and every one and this is why we strongly suggest that BSR exhaust systems are used on Stage 2 and 3 tuning kits. Otherwise, we can not garuantee performance nor durability of your engine.
Best regards /BSR
Your message: 06-10-08 01:50 pm
Thanks for the reply.
Is there any way you can analyse the map on my car and alter it to suit the exhaust I have installed? This would be a great help and save me having to change exhausts.
BSR: 06-10-08 11:09 pm
I'm sorry to say that there is no way for us to change the calibration settings in the software based on guessing what characteristics your exhaust system may have. Calibration time (i.e. creating a tuned software) is hours and hours of testing in both dyno as well as on the road so the chance of success doing this by "remote guessing" is minimal to say the least I'm afraid as we know nothing about the flow rate of your system, back pressure properties, thermal behaviour etc. etc.
It's basically like trying to tailor a suit for you without knowing what height you are, how much you weigh, what length your arms and legs are, what colours you prefer. The chance of giving you a perfect suit under these circumstances is quite slim...
Best regards /BSR
Your message: 06-11-08 08:01 pm
OK Thank you for the replies and taking the time to read my questions.
If possible could you tell me the expected boost levels I should get in each gear at peak torque. This would then tell me if I'm getting the appropriate readings.
Thank you again.
BSR: 06-11-08 08:11 pm
Trionic8 dont work with "boostpressure" as specific value its use Mg/c (airmass) so you ask for a torque value with your gas pedal and the your engine system convert this to a certain airmass in your boost level can bee different deppending on other conditions.But around 1,1-1,4 bar should bee normally but this dont say if you have correct power.To say this you need to know throtelearea in mm2 and airmass in Mg/c problem is that Opel:s techII dont show this value so we have made our one development tool for this.
Best regards /BSR