Mugen 2.2L Header
10-26-2006, 08:05 AM
#11
Originally Posted by MugenRioS2k,Oct 26 2006, 07:32 AM
I think I am the first person to actually post dyno plots for the Mugen 2.2L header gains
good info, thank you.
10-26-2006, 09:17 AM
#13
are you going to be installing it all at the same time.
I would love to see what gains can be made by the AP2 Mugen dual exhaust.
Complaining which cat back to go with now that the header is done.
I would love to see what gains can be made by the AP2 Mugen dual exhaust.
Complaining which cat back to go with now that the header is done.
10-26-2006, 09:50 AM
#14
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Originally Posted by MugenRioS2k,Oct 26 2006, 08:32 AM
I think I am the first person to actually post dyno plots for the Mugen 2.2L header gains
info!
10-26-2006, 10:15 AM
#15
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MugenRioS2k, thank you!
Looks like there was still a decent gain even before the fuel adjustment.
I am contemplating the Mugen 2.2 header, Toda Racing exhaust (if I can ever see some pictures of the exhaust installed on a S), and the Hondata re-flash.
Mike
Looks like there was still a decent gain even before the fuel adjustment.
I am contemplating the Mugen 2.2 header, Toda Racing exhaust (if I can ever see some pictures of the exhaust installed on a S), and the Hondata re-flash.
Mike
10-26-2006, 10:43 AM
#16
Even though the graphs do not show it but dyno sais there is more power added when moving forward then what was shown on the dyno.
I have theSpoon scoop and do get a bit of +pressure in the manifold above 70mph (+.08psi).
While not much its still is + pressure
I have theSpoon scoop and do get a bit of +pressure in the manifold above 70mph (+.08psi).
While not much its still is + pressure
10-26-2006, 03:45 PM
#17
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Originally Posted by MugenRioS2k,Oct 26 2006, 09:17 AM
are you going to be installing it all at the same time.
I would love to see what gains can be made by the AP2 Mugen dual exhaust.
Complaining which cat back to go with now that the header is done.
I would love to see what gains can be made by the AP2 Mugen dual exhaust.
Complaining which cat back to go with now that the header is done.
10-26-2006, 04:59 PM
#18
Originally Posted by SaltyDog,Oct 26 2006, 06:45 PM
The stock cat will also be left to help aid in torque.
remove the cat and run a test pipe that has a dim that is as close to the Mugen exhaust/header as possible
Megan 60mm
or the T1R 63mm
my vot woud be for the T1R
(O2 CEL mod and cat heat shield can be reinstalled to retain cat look)
10-26-2006, 05:38 PM
#19
remove the cat and run a test pipe that has a dim that is as close to the Mugen exhaust/header as possible
backpressure doesn't equal torque; exhaust velocity does
While we are on this topic, my future plans include a mugen 2.2 header: is the collector diameter 60-60.5mm like stock? Thanks
10-26-2006, 05:50 PM
#20
Originally Posted by tcjensen,Oct 26 2006, 08:38 PM
While we are on this topic, my future plans include a mugen 2.2 header: is the collector diameter 60-60.5mm like stock? Thanks
Mugen 2.2L header collector is larger should have measured it; I would assume it is 60.5mm ID just like the Mugen +04 exhaust. I will measure it when I take the header off to wrap it and install a test pipe (63mm T1R)
Explanation of back pressure:
Back pressure is bad in all since when it comes to extracting power form an engine.
However there is an inversely proportional relationship between induced backpressure due to pipe diameters and exhaust velocity.
Exhaust velocity is what you are looking for when trying to maximize exhaust gas scavenging.
However to get an increase in exhaust velocity (with a fixed amount of mass flow) one must decrease the pipe diameter to get more speed (ignoring the effects of increases mass density due to gas cooling as it travels down the pipe) mass flow in must = mass flow out
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