Cruising regularly at 4000 rpm

[Clipdat]

Well if I were you I would slap on an inexpensive used exhaust, that way you will hear exhaust tone instead of engine

Maybe pick something up local to save on shipping.

Originally Posted by ermax

Did that day one.

[deejaylew]

Originally Posted by Tcoat

You are late to the party. We seem to over that debate.


I am interested in what else besides the engine you feel would be damaged at high RPMs though.

NO NO NO, bring back the debate. It was good troll fodder. I wont engage your question until after the debate is brought back.

[Jordanwolf]

Originally Posted by Tcoat

To be clear, at no point throughout this was I recommending cruising at high RPMs. I cruise at 3,000 (except when doing 70+ of course) and my average gauge has been pinned steadily at 35 MPG which I reduce for error to 32 for over two years now. This is mostly due to the fact that I spend 98% of my driving time on cruise control on the highway. The 2% that I do get to play doesn't have enough impact to change that reading.

Lucky you, I get 25 with all the city driving I am doing.

[Jordanwolf]

Originally Posted by deejaylew

NO NO NO, bring back the debate. It was good troll fodder. I wont engage your question until after the debate is brought back.

... He did, it went straight over your head there.

"I am interested in what else besides the engine you feel would be damaged at high RPMs though."!!!???

[deejaylew]

Originally Posted by Jordanwolf

... He did, it went straight over your head there.

"I am interested in what else besides the engine you feel would be damaged at high RPMs though."!!!???

Not sure anything went over my head, but thank you for looking out for me.

Also the answer to this question is going to be dependent on the vehicle and where you are making the most torque, this has to do with stress on suspension components, motor mounts etc. Assuming we aren't just revving the engine on a dyno or in neutral the power has to be put to the ground thus causing wear.

[Jordanwolf]

Originally Posted by deejaylew

Not sure anything went over my head, but thank you for looking out for me.

Also the answer to this question is going to be dependent on the vehicle and where you are making the most torque, this has to do with stress on suspension components, motor mounts etc. Assuming we aren't just revving the engine on a dyno or in neutral the power has to be put to the ground thus causing wear.

Fortunately for us, only one vehicle/engine is in discussion. Too many variables would be added if you were to simply add one other vehicle with a single other engine.

[deejaylew]

Originally Posted by Jordanwolf

Fortunately for us, only one vehicle/engine is in discussion. Too many variables would be added if you were to simply add one other vehicle with a single other engine.

Also fortunate for us that in any case, every car has a gear where you are going to be creating more torque at a higher rpm thus causing more wear on the vehicle.

by all means lets get more involved with the semantics of my posts.

[Tcoat]

Originally Posted by deejaylew

Not sure anything went over my head, but thank you for looking out for me.

Also the answer to this question is going to be dependent on the vehicle and where you are making the most torque, this has to do with stress on suspension components, motor mounts etc. Assuming we aren't just revving the engine on a dyno or in neutral the power has to be put to the ground thus causing wear.

When cruising the RPMs and torque have no real impact on suspension, mounts, wheels, transmission, or any other component of the car since the resistance to that torque has already been overcome.
Now on launch or acceleration they have a huge impact since energy is being used to overcome that resistance and placing strain on all those components. Think of pushing a wheeled cart with a heavy load in it. It is hard to get started and requires more torque to push it but once moving it is easy. The same applies to the car. It makes no difference to all the components how many RPMs are being used to maintain that speed.

[TorontoNat]

Originally Posted by ermax

Stock. I got the car used with 80K so I have no real reference. There were a ton of twins at the autox I did a few months ago but all of them had exhaust so it was hard to compare.

Full throttle pulls to red line it sounds great though. It's just cruising or light exceleration where it sounds like a rod wants to go through the block.

Don't ever get a muffler delete then. I got it done last year... the knocking you speak of will be amplified tenfold if you do. Upside is that sweet sweet redline pull sound is also amplified tenfold which is probably the main reason for my shitty mpg (I have tailored my morning drive to include going under 2 bridges... mucho fun)

[ermax]

Originally Posted by Tcoat

Sound can be subjective and each person perceive it differently but to my ear that is the sweet spot with the TRD exhaust. Can't hear the engine at all really. The only time the engine noises bother me are at idle since it always sounds ready to blow something up.

Sounds like I need exhaust. Hahaha

[Tcoat]

Originally Posted by ermax

Sounds like I need exhaust. Hahaha

It really could be the solution to part of your problem. Keep in mind though that even with an exhaust it still will sound like a boxer engine with an exhaust note to match. It can take some getting used to as well if you are used to inline and V block tones.

[deejaylew]

Originally Posted by Tcoat

When cruising the RPMs and torque have no real impact on suspension, mounts, wheels, transmission, or any other component of the car since the resistance to that torque has already been overcome.
Now on launch or acceleration they have a huge impact since energy is being used to overcome that resistance and placing strain on all those components. Think of pushing a wheeled cart with a heavy load in it. It is hard to get started and requires more torque to push it but once moving it is easy. The same applies to the car. It makes no difference to all the components how many RPMs are being used to maintain that speed.

Damn you're logical as all hell and I like it. You are right, but in a day to day scenario the guy traveling at higher RPM has to overcome more resistance to reach said RPM, thus the creation of extra effort put on all components I mentioned.

You are correct that once cruising everything I said is actually wrong, I just can't get to your scenario without crossing through mine first.

[ermax]

Originally Posted by TorontoNat

Don't ever get a muffler delete then. I got it done last year... the knocking you speak of will be amplified tenfold if you do. Upside is that sweet sweet redline pull sound is also amplified tenfold which is probably the main reason for my shitty mpg (I have tailored my morning drive to include going under 2 bridges... mucho fun)

Hahaha. I always tell my wife that if I had a 911 or Cayman I would get arrested because I wouldn't be able to prevent myself from winding it out all the time just to hear the sound.

[Tcoat]

Originally Posted by deejaylew

Damn you're logical as all hell and I like it. You are right, but in a day to day scenario the guy traveling at higher RPM has to overcome more resistance to reach said RPM, thus the creation of extra effort put on all components I mentioned.

You are correct that once cruising everything I said is actually wrong, I just can't get to your scenario without crossing through mine first.

The whole debate here was about a vehicle at cruising speed. Everything that was said goes out the window when we are talking launch and acceleration. There is zero doubt that these actions are what cause the vast majority of wear on a car, use the most fuel and create the most noise.