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Hmm. I'm not so sure I can corroborate those findings. I've driven my V6 with the mid-pipes in place but without muffler and can attest to their being plenty of drone during that brief period. It must be that the V6 mid-pipes are tuned for a different frequency than the V8 mid-pipes.
I believe, could be wrong... We are saying the same thing? The resonator on the 6v midpipes makes drone at lower rpm under load at 70+-. But i bet that was wild without any muffler...?
I believe, could be wrong... We are saying the same thing? The resonator on the 6v midpipes makes drone at lower rpm under load at 70+-. But i bet that was wild without any muffler...?
Perhaps, but I'm not sure that just because the V6 drones without a muffler, means it's the mid-pipes that causes the drone. Also, how do you know the V8 mid-pipes reduce drone on a V6?
Perhaps, but I'm not sure that just because the V6 drones without a muffler, means it's the mid-pipes that causes the drone. Also, how do you know the V8 mid-pipes reduce drone on a V6?
At 70 mph the V8 revs at 1500 RPM so there is no noise to drone, the engine is completely quiet.
One of the most practical reasons to get a torquey V8 is exponentially less engine wear per mile. Mech Eng 101 says metal speed squared correlates to wear. That's why a 10K RPM LFA costs $1/2 million dollars, to buy down warranty work. At 10K RPM the engine racks up 400% more wear per mile than an engine like an LS where max torque and HP both occur at standard 5252 RPM.
F-Type V8's are silent on the hwy in either overdrive gear.
One of the most practical reasons to get a torquey V8 is exponentially less engine wear per mile. Mech Eng 101 says metal speed squared correlates to wear. That's why a 10K RPM LFA costs $1/2 million dollars, to buy down warranty work. At 10K RPM the engine racks up 400% more wear per mile than an engine like an LS where max torque and HP both occur at standard 5252 RPM.
F-Type V8's are silent on the hwy in either overdrive gear.
A couple of points to make here.
1) Engine speed has nothing to do with drone.
2) An LFA does not cost $500k because the engine revs to 10k
Additionally, LFA's probably see less than 1000 miles per year. I'm not sure anyone is exactly sending their high mileage LFA's in for rebuilds.
1) Engine speed has nothing to do with drone.
2) An LFA does not cost $500k because the engine revs to 10k
Additionally, LFA's probably see less than 1000 miles per year. I'm not sure anyone is exactly sending their high mileage LFA's in for rebuilds.
My point was, the V8 is completely silent at 70 MPH in 7th or 8th, so comparing resonators at 70 mph might not be relevant since completely silent can't drone.
The LFA, like a lot of high RPM exotics, relies on price to keep miles off. There is no magic to a high RPM engine, they wear out exponentially faster. An 18,000 RPM F1 engine lasts a few days.
Perhaps, but I'm not sure that just because the V6 drones without a muffler, means it's the mid-pipes that causes the drone. Also, how do you know the V8 mid-pipes reduce drone on a V6?
i have put the V8 resonator on the V6, sounds ricey/raspy...and i currently run the V6 midpipes on the V8 and it drones. the v8 has no resonator hence the raspy sound, the V6 has a large resonator build into where the X is on the V8...
The V6 resonator is tuned to eliminate the drone with the factory pipe, with any other exhaust you lose that tuning to eliminate the drone. F-Type Mid pipes Top V8 Bottom V6 Interchangeable
i have put the V8 resonator on the V6, sounds ricey/raspy...and i currently run the V6 midpipes on the V8 and it drones. the v8 has no resonator hence the raspy sound, the V6 has a large resonator build into where the X is on the V8...
The V6 resonator is tuned to eliminate the drone with the factory pipe, with any other exhaust you lose that tuning to eliminate the drone. F-Type Mid pipes Top V8 Bottom V6 Interchangeable
Yep, most V6 engines not just the JLR AJ126 are notorious for bad drone if fitted with a split system and no central resonator.
I had a Mitsubishi V6 a few years ago that I put a split system on and I went through several combinations of resonators and mufflers before I finally cured the drone, and I had to resort to a pair of the original restrictive rear mufflers in the end.
V8s are nowhere near as bad and as per the F-Type system an X-pipe is usually all that is needed.
10-18-2019, 04:31 PM
