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Hi folks,
Had my 2017 C43 tuned to stage 2 recently by OE tuning with Weistec DP.
Below is my dyno sheet. What do you guys think? Anyone can help explain the bumps of torque in mid-low rpms? Is it something normal?
It's normal and they can always smooth the dyno, but you will get lower peak numbers. When the dyno is smoothed, the peaks and valleys will be closer to each other, like drawing a line in the middle.
Maybe we can provide an explanation to your question. It's the way the dyno reads the front and rear independently then overlays them depending on the tq split which happens on vehicles with E-diffs such as the C43. The car boogies on the street, so it doesn't feel like that on the road.
The tq split is the two comparisons between front output vs. the rear output to the wheels. 50/50 being normal which the car is awd.
Sometimes the cars may start 50/50 or 40/60, maybe even 20/80 or 100% to the rear wheels when the car is at higher RPM's.
Last edited by SALES@OETUNING; Jul 17, 2017 at 01:09 PM.
Maybe we can provide an explanation to your question. It's the way the dyno reads the front and rear independently then overlays them depending on the tq split which happens on vehicles with E-diffs such as the C43. The car boogies on the street, so it doesn't feel like that on the road.
The tq split is the two comparisons between front output vs. the rear output to the wheels. 50/50 being normal which the car is awd.
Sometimes the cars may start 50/50 or 40/60, maybe even 20/80 or 100% to the rear wheels when the car is at higher RPM's.
The Stage-2 run had down-pipes on that car, we only tune stage-2 on vehicles that have at least down-pipes/headers.
What is the need for the downpipe? I haven't seen any pictures of stock vs. aftermarket. Are they catted? Are they restrictive? Sharp bends?
Maybe we can provide an explanation to your question. It's the way the dyno reads the front and rear independently then overlays them depending on the tq split which happens on vehicles with E-diffs such as the C43. The car boogies on the street, so it doesn't feel like that on the road.
The tq split is the two comparisons between front output vs. the rear output to the wheels. 50/50 being normal which the car is awd.
Sometimes the cars may start 50/50 or 40/60, maybe even 20/80 or 100% to the rear wheels when the car is at higher RPM's.
The Stage-2 run had down-pipes on that car, we only tune stage-2 on vehicles that have at least down-pipes/headers.
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