GS300freak

Hello everyone,

So recently I got my mufflers removed (from a GS300) because it just sounds great. I'm addicted to the 2JZ sound, but the speed limits in my country are horrible. I don't like the tickets so sometimes I enjoy the sound by just revving it up to 6K rpm when the car is in neutral or park. A friend has told me that it's really bad for the engine because I'm revving the engine without any load. So I searched a lot on the internet and some people say that it is really bad and other people say it doesn't harm the engine at all if it's warmed up.

I'm confused and want some answers from the Lexus experts . Is it really bad to rev the engine for some sound? Keep this things in mind:

* I only rev the engine up if it's totally warmed up. From my work to my home is about 40 miles, when I come home the engine is fully warmed up and when I want to, I do some revs.
* I never hold the revs high for too long. I do some short but deep revs, so I push the pedal until it hits 6K RPM and then release it. Wait a few seconds, then again. I do it about 6 to 8 times and then let the car run for a minute and turn it off.
* I never push it into the rev limiter, the rev limiter is around 6.3K I think? I never push it to the redline.

Hopefully you guys can give me some good information about this.

Thanks!

mcomer

Um, do it once more and record it on your phone...next time you have a Jones to hear the poppin'...turn up your Bluetooth soundtrack!

SpectraBlu

iTrader: (1)

^^^this. I wouldn't be just sitting there repeatedly revving to 6k rpm.

GS300freak

Ok..I get that it isn't the best thing to do, but what exactly makes it bad to do?

mcomer

Recall riding a bicycle and pedaling as fast as possible.
When you were pressing against a load your efforts were
controlled. If you continued to pedal as fast when going
downhill you were just flailing away at the pedals risking
you feet coming off the pedals...pants in chain...get the picture?

Camshafts are connected to crankshafts by chains that have
tensioners on only the load side. Variable Valve Timing sprockets
expect the cams to resist in one direction. I can only surmise
that an unloaded engine would change RPM much quicker
than one laboring and might mash/gnash/prang something.

ZanderZ32

iTrader: (2)

I would let it run for a few mins not 1mins before shutting it down, but otherwise if you rev limiter is working 100% you should be fine. Its not good for the engine but not horrible either.