Big Supes Posted February 25, 2016 Author Share Posted February 25, 2016 Thought I would bump this thread as I want to run this discovery by people to see what everyone's thoughts are... I noticed the car was smelling a bit rich again and boost levels were a bit inconsistent. Today I pulled the MAF sensor, gave it a clean, went over the boost hoses and tighten them all up and it seemed to make a difference. First pull was at 60% on the boost controller (5% gain): Notice how the boost hits it's peak and then starts to drop off? Second pull - 65% boost 5% gain Last pull - 69% boost 5% gain The boost was dropped off again, but seemed to hold on steady after the gear change. Now, am I being a numpty here? Is this quite normal is it is something that needs tweaking in the boost controller? Any help would be appreciated. Link to comment Share on other sites More sharing options...
shaz2010 Posted February 25, 2016 Share Posted February 25, 2016 I've got the same BC mate and I think I've got mine set up ok, I'll take some pics of the same sort of pulls and compare I'm also uk spec. Link to comment Share on other sites More sharing options...
Big Supes Posted February 25, 2016 Author Share Posted February 25, 2016 That'll be great, thanks mate. Link to comment Share on other sites More sharing options...
supra_ufo Posted February 25, 2016 Share Posted February 25, 2016 interesting to see the results as ill be getting the same BC. Link to comment Share on other sites More sharing options...
Big Supes Posted February 27, 2016 Author Share Posted February 27, 2016 Bump Link to comment Share on other sites More sharing options...
JasonR24 Posted February 27, 2016 Share Posted February 27, 2016 Dammit hope you get this sorted. I just bought the same boost controller as well.... Link to comment Share on other sites More sharing options...
Big Supes Posted February 27, 2016 Author Share Posted February 27, 2016 Apparently its normal as the turbo loses efficiency the higher up the rpm. Link to comment Share on other sites More sharing options...
shaz2010 Posted February 27, 2016 Share Posted February 27, 2016 Didn't have a chance to get out in her today roads were wet mate. I'll see what it's like tomorrow Link to comment Share on other sites More sharing options...
Big Supes Posted February 27, 2016 Author Share Posted February 27, 2016 No worries Shaz, safety first. That'll be great if you can when you get the chance. It would be nice to see a comparison. Link to comment Share on other sites More sharing options...
shaz2010 Posted February 28, 2016 Share Posted February 28, 2016 (edited) Just been out and done this for you mate from a stand still in auto and just foot down. (65 5% pull and 69 5%) Edited February 28, 2016 by shaz2010 (see edit history) Link to comment Share on other sites More sharing options...
shaz2010 Posted February 28, 2016 Share Posted February 28, 2016 (edited) .. Edited February 28, 2016 by shaz2010 (see edit history) Link to comment Share on other sites More sharing options...
Big Supes Posted February 28, 2016 Author Share Posted February 28, 2016 (edited) Wow, that is a BIG difference. Mine is down on boost and the curve is all over the show compared to yours. Thanks Shaz. I am going to have a good look into this. Edited February 28, 2016 by Big Supes (see edit history) Link to comment Share on other sites More sharing options...
Big Supes Posted February 28, 2016 Author Share Posted February 28, 2016 Just look back at my pictures, I take it you let off the throttle after the gear change? Link to comment Share on other sites More sharing options...
shaz2010 Posted February 28, 2016 Share Posted February 28, 2016 First pull @65 & 5% gain [ATTACH=CONFIG]209688[/ATTACH] Link to comment Share on other sites More sharing options...
shaz2010 Posted February 28, 2016 Share Posted February 28, 2016 It was just a a pull from a stand still and just throttled it mate, it was just in auto. I wonder why yours is dipping around like that. Mine literately just pulls and feels like it doesn't want to stop. Never drops off just keeps rising but staying at its set boost. Link to comment Share on other sites More sharing options...
shaz2010 Posted February 28, 2016 Share Posted February 28, 2016 Your graph shows a bit more than mine. Is that changeable in the settings ? Never use the graph just use the normal number readings. Didn't know it had this feature Link to comment Share on other sites More sharing options...
Big Supes Posted February 28, 2016 Author Share Posted February 28, 2016 I can see the gear change into 2nd, but your run stops there. By all means don't worry about it you don't have the space to do it safely, but if you could do a run from 2nd into 3rd and hold it wipe open for a moment long enough to see if it drops off, that would be great. Like I said, its no big deal if you don't have anywhere safe to do this. I'll more than likely get my car on the rollers soon to see what's going on. Link to comment Share on other sites More sharing options...
Big Supes Posted February 28, 2016 Author Share Posted February 28, 2016 The graph will keep recording until you back off. Link to comment Share on other sites More sharing options...
shaz2010 Posted February 28, 2016 Share Posted February 28, 2016 Ah I see now, it was on a private road and I didn't have enough road to go into second. ok I will sort it out this week, but late now and it's turned icy out. Link to comment Share on other sites More sharing options...
shaz2010 Posted February 28, 2016 Share Posted February 28, 2016 looking back at your pictures of your pulls I can see where it doesn't hold and it just drops a little. can you feel it dropping off when driving, before changing gear? Link to comment Share on other sites More sharing options...
Big Supes Posted February 28, 2016 Author Share Posted February 28, 2016 That's awesome Shaz, thanks. BTW, just in case you hadn't noticed, the graph will stay on the display until your next run so you can pull over safely and take a snap. Link to comment Share on other sites More sharing options...
shaz2010 Posted February 28, 2016 Share Posted February 28, 2016 No problem happy to help! Yeah I noticed that, did you do yours using manu button or do you want it in just auto.? Link to comment Share on other sites More sharing options...
Big Supes Posted February 28, 2016 Author Share Posted February 28, 2016 It was done just in auto mode. Link to comment Share on other sites More sharing options...
shaz2010 Posted February 28, 2016 Share Posted February 28, 2016 Sound I'll post once done. Link to comment Share on other sites More sharing options...
Big Supes Posted February 28, 2016 Author Share Posted February 28, 2016 Thanks buddy. Link to comment Share on other sites More sharing options...
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