Tree Monkey Member 685 Member For: 16y 4m 15d Gender: Male Location: brisvagas / Manly Posted 29/07/08 06:58 AM Share Posted 29/07/08 06:58 AM I was looking at fitting a plenum befor I had my car tuned, now have just been lead to belive that once you change to an aftermarket plenum you have a great deal of trouble controling boost, unless you mod the turbo flapper ect. How manny others have found this? And is this mod on a stock ba bottem end a bad idear? I was more looking at creating around 350rwkw at a lower boost level as apposed to max power. Link to comment Share on other sites More sharing options...
rapidchris Member 314 Member For: 18y 9m 1d Gender: Male Location: brisbane Posted 29/07/08 08:18 AM Share Posted 29/07/08 08:18 AM I have a nizpro plenum and havent moded the turbo. run 380rwkw on the big tune 17 psi. and 345 on my daily on 15 psi. have a profect b aswell. Link to comment Share on other sites More sharing options...
Geeseman Donating Members 1,805 Member For: 20y 5m 29d Location: Sydney Posted 29/07/08 08:25 AM Share Posted 29/07/08 08:25 AM you can fit one ok, but there is no need with the stock turbo as it won't make any more power. Link to comment Share on other sites More sharing options...
Guest Guests Posted 29/07/08 08:29 AM Share Posted 29/07/08 08:29 AM A plenum will make the same power if not more on less boost regardless of the standard turbo still being in place.Going by what you're saying Geeseman, 90% of people on this forum with aftermarket plenums including myself have wasted time & money because we still have standard size turbos?? Link to comment Share on other sites More sharing options...
jetute Donating Members 4,553 Member For: 20y 2m 23d Gender: Male Location: brisbane Posted 29/07/08 09:43 AM Share Posted 29/07/08 09:43 AM you can fit one ok, but there is no need with the stock turbo as it won't make any more power.but would it be fair to say that you can make the said power with less boost?? Link to comment Share on other sites More sharing options...
groper Member 611 Member For: 17y 2m 24d Posted 29/07/08 10:00 AM Share Posted 29/07/08 10:00 AM I fitted the plenum and cooler before getting tuned... no problems, if it overboosts itll just go limp mode, no big deal... just dont get into it too much before you get tuned and youll be fine...as for the plenums making more power, they do on less boost, but only by a fly sh*t,,, like 10rwkw or somthing... or maybe .5psi of boost... Link to comment Share on other sites More sharing options...
RAP1D Member Donating Members 3,739 Member For: 17y 11m 5d Gender: Male Location: Sydney NSW Posted 30/07/08 09:31 AM Share Posted 30/07/08 09:31 AM As an example of a posible scenario... I fitted one yesterday, along with my usual cooler/4incn intake/hot & cold piping... on the 8psi generic tune it hit 17psi on the dyno befor tuning... so without any wastegate enlarging it would be hard to keep boost down and flat Link to comment Share on other sites More sharing options...
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