Bellato Donating Members 2,713 Member For: 14y 3m 24d Posted 28/03/15 04:09 AM Share Posted 28/03/15 04:09 AM Xr6turbo developments are now doing good deals on external gate and screamer set ups at $900 but just wondering if there are issues with tuning them? I have heard that because the o2 sensors don't pick up the true exhaust flow it can be a problem to tune? What issues are there with general driveability, increased fuel consumption etc?I'm only going for 350rwkw so I know internal gate will do the job but gonna cost me $500 for port and flapper, actuator etc or $900 for screamer set up and to be honest its more for wank factor that I'd go screamer, I just love the sound. The other benefit is I'm only running 3.5" dump and cat with rear muffler delete so this will help significantly on the exhaust flow side of things and subsequently my stock valve springs too. Cheers Link to comment Share on other sites More sharing options...
ratter Member 6,793 Member For: 18y 8m 16d Gender: Male Location: @ my laptop Posted 28/03/15 04:33 AM Share Posted 28/03/15 04:33 AM I won't do a falcon on 98 with a screamer anymore due to not being able to hear knock Link to comment Share on other sites More sharing options...
Bellato Donating Members 2,713 Member For: 14y 3m 24d Posted 28/03/15 04:47 AM Author Share Posted 28/03/15 04:47 AM Excuse the ignorance, but how does the screamer effect the inability to hear knock? Link to comment Share on other sites More sharing options...
ratter Member 6,793 Member For: 18y 8m 16d Gender: Male Location: @ my laptop Posted 28/03/15 05:14 AM Share Posted 28/03/15 05:14 AM (edited) Engine noise can not be heard over the volume of the screamer pipe and the volume triggers the electronic knock detection sensors into thinking there is knock when in fact there is not.The falcon engine on 98 octane will still make power while pinging so unlike some engines the torque trace does not help with max spark advance tuning Edited 28/03/15 05:39 AM by ratter Link to comment Share on other sites More sharing options...
Bellato Donating Members 2,713 Member For: 14y 3m 24d Posted 28/03/15 10:07 PM Author Share Posted 28/03/15 10:07 PM Okay thanks! And so on e85 this isn't an issue? Link to comment Share on other sites More sharing options...
ratter Member 6,793 Member For: 18y 8m 16d Gender: Male Location: @ my laptop Posted 29/03/15 12:09 AM Share Posted 29/03/15 12:09 AM it can still not be heard to have an accurate tune but E85 does not have to be as close to the knock threshold to make it's power as 98 does, although some still take it to far Link to comment Share on other sites More sharing options...
Z2TT Member 714 Member For: 12y 8m 17d Posted 29/03/15 01:20 PM Share Posted 29/03/15 01:20 PM Don't you have like a Stephoscope that you can put on the engine that makes knocking sound so you can hear it above all the background noise? Link to comment Share on other sites More sharing options...
ms700 Moderating Team 10,170 Member For: 22y 12d Gender: Male Location: Sydney Posted 29/03/15 08:14 PM Share Posted 29/03/15 08:14 PM Whats the massive attraction to screamers?? 2 Link to comment Share on other sites More sharing options...
Bizkets is Drunk? Too heavy needs boost Member 5,929 Member For: 11y 6m 6d Gender: Male Location: Adelaide Posted 29/03/15 08:30 PM Share Posted 29/03/15 08:30 PM Squirters are more fun. 4 Link to comment Share on other sites More sharing options...
ms700 Moderating Team 10,170 Member For: 22y 12d Gender: Male Location: Sydney Posted 29/03/15 08:38 PM Share Posted 29/03/15 08:38 PM depends bizsometimes the neighbours might prefer squirtersbut I like the way you think 1 Link to comment Share on other sites More sharing options...
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