It looks fast too!
06-14-2013, 10:32 AM
#681
Former Sponsor
Thread Starter
If you read post #1 in my group-buy thread, it thoroughly answers your question. If you have any questions after reading that post, please ask.
06-14-2013, 10:39 AM
#682
Let me clarify, I understand how much the Gern makes by itself, was looking for the number for the complete system including the muffler etc. as posted on the previous page...
06-14-2013, 11:57 AM
#683
Former Sponsor
Thread Starter
I saw that post on the past page too, mid-range torque doesn't mean much to me either, as that at best helps with one gear (1st) whereas every other gear you'll be at over 6k, hopefully in vtec (if you don't fail shift your ap2 if it has a lightweight flywheel 
). It also seems the AFR is inconsistent with your tune of the gernpipe. Any chance to help me understand why? It matches the torque curve perfectly, which is probably why the berk made more power/tq higher rpm. There might be some more you could get out of your pipe as well!
Also, any chance we can get the weight of at least the header-back gern system compared to the berk's? And the reason for 2.5? I know you would choose something like pipe diameter for a very specific reason, just wondering why not 3".
As a few other warnings to people who will harp on me saying mid range doesn't matter, no one cares about daily driving at lower RPM, just straight performance
, at least that's how I feel.
). It also seems the AFR is inconsistent with your tune of the gernpipe. Any chance to help me understand why? It matches the torque curve perfectly, which is probably why the berk made more power/tq higher rpm. There might be some more you could get out of your pipe as well!Also, any chance we can get the weight of at least the header-back gern system compared to the berk's? And the reason for 2.5? I know you would choose something like pipe diameter for a very specific reason, just wondering why not 3".
As a few other warnings to people who will harp on me saying mid range doesn't matter, no one cares about daily driving at lower RPM, just straight performance
, at least that's how I feel.If you're a drag racer, and really don't care about the daily driving experience, then my mid-pipe wouldn't gain you much. However, if you don't always drive in a straight line while shifting at the rev limitter, then my mid-pipe makes a world of difference.
I started out with a 3" entry and exit, but discovered that performance was better with a 63" entry. The reason why I changed to a 2.5" muffler is because it made the same amount of power with less wasted fuel. If you look back through the thread, you'll see how I tested that using dual EGT sensors, one on each side of an HFC to measure the amount of fuel being burned by the HFC.
EDIT: I don't recall the weight of the Berk, and I haven't weighed the final production version of my system. I posted the weight of one of the "almost production" units in my group-buy thread, but I actually don't remember what it was. I think it was either 27 or 37 lbs, which would be awesome for a quiet dual outlet header-back with an HFC.
06-14-2013, 12:00 PM
#684
Former Sponsor
Thread Starter
The dyno plots that I posted in the beginning of both threads were done using an early version of my full system (mid-pipe with a Dingle). There really isn't any performance gain from the Dingle, since the power gains are all created by the mid-pipe.
06-14-2013, 12:07 PM
#686
Originally Posted by arsenal' timestamp='1371235194' post='22608975
Let me clarify, I understand how much the Gern makes by itself, was looking for the number for the complete system including the muffler etc. as posted on the previous page...
