09-19-2011, 10:14 AM #1
differences between et 137 vs et 68-140???
stock ski, 4" kaniflex and FF exhaust ( will put on over winter) are the only "performance" mods i got on my 09 rxpx, as well as 15/21 solas, opas extensions, riva 2.5* wedge kit, rev buckert mod.
not looking to modify the ski much more than this at the moment either.
what are the differences between the et 137 vs et 68-140???and what charger would be better suited for me?
09-19-2011, 10:36 AM #2
If you are not looking to modify your ski much more than it already is, the ET 137 is the way to go. You will however need to add a rrfpr to get enough fueling.
Differences between 137 and 140 are size, boost, and volume of air pushed. You will need a little more in the way of supporting mods (and free time for tuning) to make the 140 work properly. It's a badass charger but judging by your post I would definitely recommend the 137 especially if you plan on sticking with a stock ecu. I think you will be very happy with the results. Feel free to pm me if you have any other questions. i don't always check all of the threads
09-19-2011, 10:43 AM #3
the et137 will drop directly into your xcharger housing, you might need bigger injectors like 48's possibly, plus the rising rate fuel regulator and a way to monitor air/fuel ratio
09-19-2011, 11:19 AM #4
my charger touched down after 10 hours of rebuild so its gone... just gonna buy a buiilt 137 Sc and drop it in.
thanks for the quick replies
09-19-2011, 11:40 AM #5
09-19-2011, 11:44 AM #6
09-19-2011, 01:24 PM #7
09-19-2011, 02:21 PM #8
my other question is how will different fuel grades effect the afrs? i usually run 93 octane, but there has been one time where the closest marina ONLY had 89 and times ones in a while 91 . but 90% of the time 93
09-19-2011, 02:25 PM #9
I only run 93. I take extra fuel if I have to, to avoid running lower octane.
09-19-2011, 02:40 PM #10
Mario, the 68-140 is a bad ass charger, which your going to need more supporting mods than the 137. The 137 is the same size as the X charger but taller which will give you more volume and a couple lbs more boost. My big old fat three seater will run 75 all day in the heat, have no idea what my afr is and im running 48s @ 60psi key on pressure. im sure the ski will go 77+ once the cool weather gets here and i can get the afr 12.2. Its a great all around rec charger.
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