Rev question
#11
Originally Posted by BlackNightmare,Jun 25 2006, 01:28 PM
yeah, it kept hitting its max so it felt like what would happen if u tried to use V-tec when theres only one bar on your temp. gauge. the engine was being over revved. hows that Fumanchu?
I think you just showed the forum that you're the bigger idiot here.
Learn how the S2000 works before posting anymore tripe.
#12
please englighten me on how it needs to be perfectly said. So next time I can make it word for word perfect. So I mis-use the wrong term. I was correctly kindly by someone other than the person PMing me non-sense just because of an arguement on another forum.
#14
Originally Posted by jbotstein1,Jun 25 2006, 11:35 AM
Off topic, is tripe any good? I always see it when I eat dim sum but I've never tried it.
#17
so who is necessarily right in this whole thread about what happened? Quote it out so I can understand whats actuatly going on since I guess I cant grasp the concept right now..everything I say is wrong. I need to be told right, im seriously asking with no attitude what happened and what its called.
#18
I owned the car for 6 months, I tried to read as much about it as possible. I will get things wrong for sure every now and then if not always...instead of PMing me saying I dont know what i'm talking about why not also tell me what I really should have said so I can learn from it. It would be nice seeing as though I will be buying another s2000 in the next couple weeks. Thanks
#20
In a manual transmission car that has electronic ignition and a "rev limiter", here are two scenarios:
1. You rev the engine up by giving it gas. It doesn't matter if the tranny is in neutral or if the tranny is in gear where the engine drives the drive wheels. If the car has a natural tendency to slow down (being acted upon by the rolling resistance of the tires and drivetrain and being acted upon by aerodynamic drag), the engine can only go as fast as the rev limiter will allow. Once it gets there, the car's computer either shuts off the fuel or shuts down the ignition or both. The engine cannot go any faster. This is typically referred to as "bouncing off the rev limiter". The rev limiter has done its job to protect the engine from going faster than it was designed to go. In this scenario, "the engine drives the wheels".
2. This scenario involves the drive wheels driving the engine. This can be accomplished by gravity defeating the drag of the wind and drivetrain (long, steep hill). It can also be accomplished (the most common way) by mis-shifting into a lower gear when the road speed is too high. For example if you are in 3rd, at or near redline, and you intend to shift into 4th BUT accidentally shift into 2nd and let out the clutch, the drive wheels now drive the engine to an rpm that is far beyond what it was designed to do. If you are already at redline in any given gear, imagine what rpm it would be going if you suddenely put it into a lower gear. The rev limiter will NOT prevent the engine from going beyond that set point. The rev limiter is NOT a brake. It is only a fuel cut-off. An engine can be driven "mechanically" without the need for fuel.
In conclusion: When the engine is accelerated by throttle, the rev limiter will not permit it from going any faster than the set point. When the engine is accelerated by the drivetrain (or "mechanical" means), its speed will equalize with whatever road speed the car is going based on the gear it is in. This is typically referred to as a "mechanical over-rev".
It has been said that the 2.0L engine is still safe, for a brief time, up as high as 10,500 rpm. The 2.2L engine will most likely still be OK at that engine speed insofar as the valvetrain is concerned, however, the pistion speeds are significantly higher at beyond its normal redline that it is doubtful that the "bottom end" of the engine will do very well.
1. You rev the engine up by giving it gas. It doesn't matter if the tranny is in neutral or if the tranny is in gear where the engine drives the drive wheels. If the car has a natural tendency to slow down (being acted upon by the rolling resistance of the tires and drivetrain and being acted upon by aerodynamic drag), the engine can only go as fast as the rev limiter will allow. Once it gets there, the car's computer either shuts off the fuel or shuts down the ignition or both. The engine cannot go any faster. This is typically referred to as "bouncing off the rev limiter". The rev limiter has done its job to protect the engine from going faster than it was designed to go. In this scenario, "the engine drives the wheels".
2. This scenario involves the drive wheels driving the engine. This can be accomplished by gravity defeating the drag of the wind and drivetrain (long, steep hill). It can also be accomplished (the most common way) by mis-shifting into a lower gear when the road speed is too high. For example if you are in 3rd, at or near redline, and you intend to shift into 4th BUT accidentally shift into 2nd and let out the clutch, the drive wheels now drive the engine to an rpm that is far beyond what it was designed to do. If you are already at redline in any given gear, imagine what rpm it would be going if you suddenely put it into a lower gear. The rev limiter will NOT prevent the engine from going beyond that set point. The rev limiter is NOT a brake. It is only a fuel cut-off. An engine can be driven "mechanically" without the need for fuel.
In conclusion: When the engine is accelerated by throttle, the rev limiter will not permit it from going any faster than the set point. When the engine is accelerated by the drivetrain (or "mechanical" means), its speed will equalize with whatever road speed the car is going based on the gear it is in. This is typically referred to as a "mechanical over-rev".
It has been said that the 2.0L engine is still safe, for a brief time, up as high as 10,500 rpm. The 2.2L engine will most likely still be OK at that engine speed insofar as the valvetrain is concerned, however, the pistion speeds are significantly higher at beyond its normal redline that it is doubtful that the "bottom end" of the engine will do very well.