makem_neil Posted August 1, 2003 Share Posted August 1, 2003 quick question, on a dect with a boost controller, why cant the boost be reduced to say 0.6?? Also using a form of BC what dterimes what boost the first turbo runs then the second? Quote Link to comment Share on other sites More sharing options...
JamesG Posted August 1, 2003 Share Posted August 1, 2003 The air takes the path of least resistance. You can open the wastegate fully, but it's not large enough to flow all the air away from the turbo. Some of it still passes through the turbine section and generates boost pressure. James. Quote Link to comment Share on other sites More sharing options...
Suprash Posted August 2, 2003 Share Posted August 2, 2003 Boost controllers will only raise the boost from the current boost level, so if you hadnt de-cat then your current boost level would be the stock .8, if you then fitted a boost controller it can raise that from .8 upwards, same as if you de-catted, then your current boost is now say 1.1, again if you fit a boost controller it will only raise it, it cant lower it. Thats my understanding of it anyway..........Im sure someone who knows more will explain it better......!!! Quote Link to comment Share on other sites More sharing options...
dandan Posted August 3, 2003 Share Posted August 3, 2003 on a slightly different note, with my dsbc controller fitted i can reduce the boost down to 0.55-0.6bar, by playing around with the gain and limit settings Quote Link to comment Share on other sites More sharing options...
Justin Posted August 3, 2003 Share Posted August 3, 2003 Why would you want to reduce the boost to 0.6 anyway? Just buy a Mondeo that'll do it Quote Link to comment Share on other sites More sharing options...
dandan Posted August 3, 2003 Share Posted August 3, 2003 did it my accident when seting the dsbc up. gain was too high and with limiter set to say 0.9bar, there'd be a really quick spike to 0.95 or similar and then reduced to 0.6 ish. the hks boost gauge would not read a peak hold above 0.6 bar and i thought it was knackered but as far as i can work out it just couldn't keep track of the quick boost spike. i know this is not right, using thye limiter to control boost but just something i stumbled across. now running gain of 9 and ratios of 38, 43, 47, 47 i think. gives a range of 0.6-1.1 in this hot weather any opinions on any of this?? Quote Link to comment Share on other sites More sharing options...
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