Quote:
Originally Posted by jessrayo
Good eye. I must admit I have wondered about this also but the car is tuned to run pretty good with it in there. I didn't design the system and don't know if there are any plans to change this on future kits.
I'm curious what kind of power limits you think I'll hit with it the way it is. I'm pretty sure those turbos can drive a lot more air through the pipe but if the sensor can't read the changes then it is kind of pointless.
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Note this is not meant to do anything other than educate and add to the discussion.
Any time you install a MAF in a smaller pipe you must scale back the MAF calibration which then in turn reports Less Torque to both the ECM and TCM.
When you put the MAF in a smaller pipe it will climb higher in the MAF Range than normal so you could theoretically run out of MAF range earlier in your quest for power, fortunately the MAF has a range of 1300 HP in a normal size pipe so even if you reduce the pipe by say 25% you still have 900 + HP range.
It also changes the Load or Grams per cylinder which is what the timing map uses for to determine air load which selects timing value vs RPM.
The ECM is not a big deal, there are work arounds for this.
My concern is in auto cars, the TCM will adjust line pressure based on reported torque.
It should not be a problem going smaller but it is a big problem going bigger, we have seen many transmission failures due to a Mammoth intake pipe.
You may notice the trans shifts harder than normal with the smaller pipe.
Ted.