Quote:
Originally Posted by Z OH 6
So you're telling me that with the Magnflow muffler in place, you couldn't go WOT, full power? Joshinator isn't experiencing that nor am I or anyone else that installed this muffler in this thread. That's very strange.
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Clarifying my statement:
I did two events besides street/highway driving:
(1) Car rally that was about 280mi and 5 checkpoints
(2) SCCA autocross event.
Initial observations:
Quieter, really nice sound. Minimal and medium load situations are fine. With the 2650 and a ton of torque, you can get around most cases using only 10-30% of the throttle and the setup was perfectly fine.
Further observations (40% throttle - 100% throttle):
1. Mid throttle, high load situations
I was getting some bucking as the boost went to about 15psi - something I did not experience before and I'm not experiencing it right now as I pulled the muffler out yesterday.
I data logged some of this with the PDR: coming out of a turn 20mph, 1.1g, accelerating to 60mph. Tried in 2nd gear and 3rd gear. More pronounced in 3rd gear and a bit better in 2nd gear.
2. WOT scenarios
- i.e. coming out of a turn (low speed 30mph about 1.15g according to PDR) to about 125mph. Visible jagged edges on longitudinal acceleration throughout RPM band.
- also noticed this on many highway pulls 40/50/60 roll to 120+ speeds. The car would just sit back instead of propelling itself (if that makes sense at all)
Had both myself and some instructors/passengers who came for a ride with me and driven the car note that it felt choked off because the power comes on wanting to go and you can literally feel it in the pedal rolling back on you.
Keep in mind, if you're happy with it... keep running it.
Just trying to share my experience and maybe it will help some of you.
Without the muffler, WOT - the car took off with the pedal mashed to the floorboard while trying to break traction on the freeway.