Rusty XR6T Legacy Donating Member 516 Member For: 16y 6m 9d Gender: Male Posted 09/03/11 05:06 AM Posted 09/03/11 05:06 AM I read an article the other day that stated the FG Turbo range has overboost as part of the normal turbo operation.Apart from a different turbo to the BA/BF it said the FG has overboost covered in the ECU for a little bit of an extra kick.I've read it in quite a few places now and was just looking for a definition on what this meant exactly. I know you can experience overboost when messing with the intake system and the exhaust, and that overboost was a bad thing, but most of the threads have been directed at BA/BF's. I would assume because this is going outside the parameters of the ECU, is it still a problem with the FG's considering this overboost function in the ECU?I'm only talking about completely stock here, so only from factory.Can anyone shed some light on this?
frogg Member 57 Member For: 16y 1m 27d Gender: Male Location: Bundoora, Melbourne Posted 09/03/11 05:11 AM Posted 09/03/11 05:11 AM From what I understand (and read) the overboos will allow 10% over the nominal boost for short bursts. ie. for short bursts of sideways action, red light races or even for overtaking Manoeuvres!
INASNT Member 361 Member For: 20y 1m 19d Gender: Male Location: Melbourne Posted 09/03/11 05:11 AM Posted 09/03/11 05:11 AM Just get it tuned and it will be in overboost all the time!!!
Rusty XR6T Legacy Donating Member 516 Member For: 16y 6m 9d Gender: Male Posted 09/03/11 05:14 AM Author Posted 09/03/11 05:14 AM So overboost is part of the normal operation of the car, in short bursts of course its like Indy cars allow extra burst for overtaking etc but only a limited amount.Does anyone happen to know the stock boost PSI and what it is allowed to spike to?
SPOOLAX Skids? Legacy Donating Member 975 Member For: 17y 5m 3d Gender: Male Location: Adelaide Posted 09/03/11 05:15 AM Posted 09/03/11 05:15 AM Just get it tuned and it will be in overboost all the time!!!
tab Sucker Moderating Team 32,303 Member For: 22y 5m 15d Gender: Male Location: Brisbane Posted 09/03/11 06:26 AM Posted 09/03/11 06:26 AM It supposedly will give a bit extra when the planets are aligned...as in engine and ambient temp etc. all within normal operating ranges.
MexicanBatman G666E Turbo!!! Member 1,008 Member For: 16y 8m 24d Gender: Male Posted 09/03/11 09:16 AM Posted 09/03/11 09:16 AM 10psi is supposed go be stock and if it's 10% over boost well that makes 11psiBig deal you not notice anything. I never did. Mine never made 10psi stock about 8-9psi on the dyno boost gauge.
Boosted1 Member 346 Member For: 17y 10m 16d Posted 09/03/11 10:57 AM Posted 09/03/11 10:57 AM I think you will find the factory overboost is on kickdown.
Rusty XR6T Legacy Donating Member 516 Member For: 16y 6m 9d Gender: Male Posted 09/03/11 09:29 PM Author Posted 09/03/11 09:29 PM not really sure on power increase or boost increase, was actually just looking to see if it does exist and it is true... looks like it is thanks ladies
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