S2000 Talk Discussions related to the S2000, its ownership and enthusiasm for it.

Hit rev limiter.... thoughts?

Thread Tools
 
Old Feb 6, 2005 | 04:09 AM
  #21  
RACER's Avatar
Registered User
 
Joined: Oct 2003
Posts: 15,082
Likes: 0
From: Knoxville, TN
Default

I have banged the rev limiter 2-3 times since I have had my car. By banging the rev limiter once or twice, I figured out exactly how far I could push, without hitting the rev limiter, thus created a maximum shifting point.

If your really good, you should be able to go though the first three gears all the way to redline, red bars (on the right side of the tach) flashing for about 2-3 10th's of a second before shifting into the next gear without banging the rev limiter.

Hitting the rev limiter a few times will not harm the engine, but IMO, I don't think it can be good for the engine to bang the rev limiter on a constant basis.
Reply
Old Feb 6, 2005 | 04:44 AM
  #22  
RACER's Avatar
Registered User
 
Joined: Oct 2003
Posts: 15,082
Likes: 0
From: Knoxville, TN
Default

One more thing, I am not 100% sure, but I believe that the rev limiter kicks in at around 9,200 rpm. The F20C motor should be good for up to 10,000 rpm WITHOUT valve float, meaning there would be no piston to valve contact.

This means that it would be impossible to incur valve train damage due to a late shift, thus banging the rev limiter. On the other hand, the rev limiter will not save your motor from a mechanical over rev cause by shifting down one too many gears at a given speed. This means that the engine is mechanically forced to turn x amount of rpm due to a selected gear at a given speed.

Example, if you accidently shifted into 2nd gear instead of 4th gear at 80-90 mph, you can say to your engine, then you will be

The 6 speed transmission on the S2000 IMO, requires more concentration than any other transmission in any car I have owned or driven and requires a certain finesse. Then again, I have never owned a car with a 6 speed manual transmission until I got the S2K.
Reply
Old Feb 6, 2005 | 05:01 AM
  #23  
tenblade2001's Avatar
Registered User
 
Joined: Jul 2002
Posts: 9,280
Likes: 1
From: knoxville, TN
Default

Originally Posted by RACER' date='Feb 6 2005, 08:44 AM
One more thing, I am not 100% sure, but I believe that the rev limiter kicks in at around 9,200 rpm. The F20C motor should be good for up to 10,000 rpm WITHOUT valve float, meaning there would be no piston to valve contact.

This means that it would be impossible to incur valve train damage due to a late shift, thus banging the rev limiter. On the other hand, the rev limiter will not save your motor from a mechanical over rev cause by shifting down one too many gears at a given speed. This means that the engine is mechanically forced to turn x amount of rpm due to a selected gear at a given speed.

Example, if you accidently shifted into 2nd gear instead of 4th gear at 80-90 mph, you can say to your engine, then you will be

The 6 speed transmission on the S2000 IMO, requires more concentration than any other transmission in any car I have owned or driven and requires a certain finesse. Then again, I have never owned a car with a 6 speed manual transmission until I got the S2K.
The problem isn't with valves (when you bang the rev limiter) its the valve retainers. The get fractured. Billman (from metroNYC club) who is a Honda mechanic, did a whole write up about it.
Reply
Old Feb 6, 2005 | 06:02 AM
  #24  
tritium_pie's Avatar
Registered User
 
Joined: May 2003
Posts: 4,543
Likes: 0
From: Vegas baby!!
Default

ya know, I actually think it's good for the motor to be taken to redline... atleast once.

I posted a thread a while back about downshifting into 2nd at around 60mph or so (I think ) and it took my motor right up to the redline.

I was worried for a while-- listening for the dreaded knocking sound. but since then, my motor feels like it f*ckin pulls MUCH stronger for some reason. maybe I loosened it up? maybe it's all in my mind? who knows??

but when I mash on the "Go" pedal, it pulls with a lot more gusto.
Reply
Old Feb 6, 2005 | 06:11 AM
  #25  
ADAM_ROB_UK's Avatar
Registered User
 
Joined: Sep 2002
Posts: 2,026
Likes: 0
From: hampshire
Default

Originally Posted by Bane' date='Feb 6 2005, 03:39 AM
Seriously though, in a 91-92 MR2 turbo if you go in reverse it takes miles off of the odometer. No joking... I lost $20 in a bet due to this
^^^^
Reply
Old Feb 6, 2005 | 07:00 AM
  #26  
mntony's Avatar
Registered User
 
Joined: Jan 2002
Posts: 608
Likes: 0
From: Rochester
Default

So am I the only one here who hit the rev limiter in first, said "damn!", shifted into second, then promptly hit the rev limiter in second!

When I told a friend at work about it (he's a former race driver), his reply was "Atta boy!"
Reply
Old Feb 6, 2005 | 07:04 AM
  #27  
tritium_pie's Avatar
Registered User
 
Joined: May 2003
Posts: 4,543
Likes: 0
From: Vegas baby!!
Default

Originally Posted by mntony' date='Feb 6 2005, 08:00 AM
So am I the only one here who hit the rev limiter in first, said "damn!", shifted into second, then promptly hit the rev limiter in second!

When I told a friend at work about it (he's a former race driver), his reply was "Atta boy!"
I tried that once.... GRIIIIINNNNNNDDDDD...

(don't forget to pause a brief moment in neutral before attempting this in the 1-2 shift. just a moment, to let the synchros catch up. 1-pause-2.)
Reply
Old Feb 6, 2005 | 07:15 AM
  #28  
RACER's Avatar
Registered User
 
Joined: Oct 2003
Posts: 15,082
Likes: 0
From: Knoxville, TN
Default

Originally Posted by tenblade2001' date='Feb 6 2005, 06:01 AM
The problem isn't with valves (when you bang the rev limiter) its the valve retainers. The get fractured. Billman (from metroNYC club) who is a Honda mechanic, did a whole write up about it.
Like I said, I don't think it is good for the engine to bang the rev limiter on a constant basis.
Reply
Old Feb 6, 2005 | 07:29 AM
  #29  
RACER's Avatar
Registered User
 
Joined: Oct 2003
Posts: 15,082
Likes: 0
From: Knoxville, TN
Default

Originally Posted by tritium_pie
ya know' date=' I actually think it's good for the motor to be taken to redline... atleast once.
I take my engine to redline quite often


[QUOTE=tritium_pie]I posted a thread a while back about downshifting into 2nd at around 60mph or so (I think ) and it took my motor right up to the redline.

I was worried for a while-- listening for the dreaded knocking sound.
Reply
Old Feb 6, 2005 | 08:14 AM
  #30  
Billman250's Avatar
Moderator
Active Streak: 30 Days
Active Streak: 120 Days
Liked
Top Answer: 1
 
Joined: Jul 2002
Posts: 22,379
Likes: 1,822
From: Long Island, New York
Default

Originally Posted by Ogre' date='Feb 5 2005, 04:10 AM
Well I hit the Rev Limiter for first time in my S2k and was thinking well how bad was that. I bounced hard off it to, just got distracted and didnt think was time to shift yet I was thinking it shouldent be too bad since thats why the rev limiter is there but then again bouncing off the last protection before blowing a engine isnt good

Thoughts?
Hitting the rev limiter in this fashon will in no way harm the engine. A MECHANICAL over-rev however (when the inertia of the car spins the engine past the preset rev limit, from wrong gear selection at high rpm) can split the retainers. Even if no valve to piston contact takes place. Most of the retainer replacements I've done needed only retainers, no piston/valve issues. One car hit an estimated 11k...broke 8 intake retainers, and bent 8 exhaust valves.

Bottom line...hittting the ECU rev-limiter once in a while will do no harm. I would just recommend learning where it is and not making a daily habit of it.

Here's a good one for you guys....I have a customer coming out today, says his car is really slugish and has no power. The car has not seen past 6k for the last year or more since an earlier issue has frightened him, and he thinks the car is wounded and unreliable. Wonder if it's loading up on him Put your dam foot to the floor and 9k that sucker evey chance you get. Enjoy the car for what it was made to do. It will only run better and better
Reply



All times are GMT -8. The time now is 05:58 AM.