ronttuk Posted February 2, 2011 Share Posted February 2, 2011 My second turbo comes in around 4500 rpm im told thats normal is there a way of bringing the 2nd turbo in before that say around 3500rpm?? Quote Link to comment Share on other sites More sharing options...
pistonbroke Posted February 2, 2011 Share Posted February 2, 2011 You can make both turbos come on at the same time, normally around 3000-4000rpm. Search on here for TTC mode. However, I wouldn't personally recommend it. The fuelling is all wrong for running in TTC mode, unless you have an aftermarket fuel managment system. Running it on a stock ECU will probably give you a dodgy lean spot halfway through the rev range when the sequential system is meant to start the transition between one turbo and both. TTC mode can be used as a method for diagnosing boost problems when one of the VSV's packs in. Quote Link to comment Share on other sites More sharing options...
Wez Posted February 2, 2011 Share Posted February 2, 2011 Not much help to you but you can configure the VSV rpm activation points when running an AEM Quote Link to comment Share on other sites More sharing options...
Nic Posted February 2, 2011 Share Posted February 2, 2011 You can make the turbos spool quicker using the 'gain' feature on an electronic boost controller, it won't change the transition point when the 2nd turbo comes online but will help each turbo spin up quicker and make a noticeable improvement in acceleration. Quote Link to comment Share on other sites More sharing options...
Guigsy Posted February 2, 2011 Share Posted February 2, 2011 You can make the turbos spool quicker using the 'gain' feature on an electronic boost controller, it won't change the transition point when the 2nd turbo comes online but will help each turbo spin up quicker and make a noticeable improvement in acceleration. I should learn how to use mine. I'm prety sure it is set like this but I can't work it out lol Quote Link to comment Share on other sites More sharing options...
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