Alberto Aleman Posted November 28, 2010 Report Share Posted November 28, 2010 I tested my boost solenoid and is working. I get to much boost on my current boost tables. I am just aiming for 1.5 kg of boost to 8k rpm, currently i get 1.67 when i lift off at 4.3rpm. Any suggestions? maybe I need to lower my map limit currently it is a 300kpa at 60degres, i am running a 7 bar map sensor. Any suggestions or inputs are greatly appreciated, this is the only portion that is driving me crazy Quote Link to comment Share on other sites More sharing options...
Jurgen Biggelaar Posted November 29, 2010 Report Share Posted November 29, 2010 Hello Alberto. Do you mean when you get to 1.67, you lift off the gas because it's too much, or is it when you lift off the gas at 4300rpm it spikes to 1.67? May be you could take a log file of this happening? Jurgen Quote Link to comment Share on other sites More sharing options...
Alberto Aleman Posted November 30, 2010 Author Report Share Posted November 30, 2010 Jurgen I had a read regarding plumbing my wastegate to the mac valve. After a bit of time I re do the pipes, result rock solid boost at 1.3kg and wastegate screaming...lol back to happy days. To answer your question, i lifted of at 1.67 because i knew it has going to spike to something crazy like 1.9 Quote Link to comment Share on other sites More sharing options...
Jurgen Biggelaar Posted December 2, 2010 Report Share Posted December 2, 2010 Gotcha. Cool, glad you got it sorted, and thanks for letting me know. Happy scream'n Jurgen Quote Link to comment Share on other sites More sharing options...
martin battye Posted December 12, 2010 Report Share Posted December 12, 2010 Al... hiya!! once weve finished getting your fuelling rock solid then we can work on spool etc... all takes time via remote support!! but we'll get there.! Quote Link to comment Share on other sites More sharing options...
ben Posted April 24, 2011 Report Share Posted April 24, 2011 i need some information: i install a boost soloniod to control boost on my extrame G4, i need to know what numbers i have to entre in table to control it let's say i want to run on 10psi boost what number i have to entre in the table?? there is any convertion table for active boost?? Quote Link to comment Share on other sites More sharing options...
Simon Posted April 26, 2011 Report Share Posted April 26, 2011 Hi Ben There is no magic number that will give a set boost. You will have to start with low numbers a work up until you get the desired boost levels. Quote Link to comment Share on other sites More sharing options...
ben Posted May 10, 2011 Report Share Posted May 10, 2011 hi Simon thanks for your help! what numbers i have to start to get low boost as posible?? Quote Link to comment Share on other sites More sharing options...
Top Tune NZ Posted May 11, 2011 Report Share Posted May 11, 2011 start with zero in all zones work your way up in 5 whole number increments untill you see some movement make sure you are in open loop and tuning the base duty cycle. i normally change my axis to ( none) on the left side and rpm across the top untill the boost level is stable on the dyno then make the left axis into either mgp or tps depending on how you want to control the rate of boost < drivers preference > what sort of enine are you running ? Quote Link to comment Share on other sites More sharing options...
ben Posted May 11, 2011 Report Share Posted May 11, 2011 Hello dobsons thanks for your time!! i am very new with the link G4 so thanks for any help!! Base duty cycle = wastegate % DC 1 Active?? the engine is Ford cosworth yb 4 cylinder turbo 75mm borg warner, big Mac soloniod 2 x 46mm tial waste gates for drag racing I want to achive the 50psi of boost but on the dyno to map i have to start with 5 psi and go up step by step Quote Link to comment Share on other sites More sharing options...
Top Tune NZ Posted May 12, 2011 Report Share Posted May 12, 2011 hi ben you may need to up your base spring pressure to approx 20 psi after you get your low boost pressure tune finished as you will run out of stable duty cycle using your set up make sure your aux out put is set to 20hz your dc1 numbers may get fairly high like 60 but start at around 10 and work your way up good luck email me if you need a hand [email protected] Quote Link to comment Share on other sites More sharing options...
ben Posted May 12, 2011 Report Share Posted May 12, 2011 hello dobson thanks agian I am on 20 hz i will E-mail you with some issues they told me to use Co2 to control the wastegates not from intake so the boost will be constint from low rpm, what you think?? thanks agian i will e-mail you Quote Link to comment Share on other sites More sharing options...
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