How harmful is it to hit the fuel cutoff in the EP3.

I couple of times recently it has happened.

Not proud of the fact it has happened either.

I imagine it is there so no damage does occur and I imagine it isn't healthy to do all the time.

Just looking for what problems it can cause.

 

As long as you don't 'hit' it by over-revving by selecting a wrong gear, there is nothing wrong with bouncing the stock rev limiter.

I wouldn't do it at every stoplight, but otherwise it'll be fine.

On the EP3 it's easy to do since it's set so low. I used to bounce it with my hondata flashed EP3 (7700rpm redline) with no consequences.

 

Yeah, you will be fine as long as you are like driving for mile while bouncing off the limiter, LOL.

 

http://www.youtube.com/watch?v=RWdAZvo8gSk
http://www.youtube.com/watch?v=D2BavfShtZU

 

LOL.. man i guess thats why my buddies 92 civic has 310k and still runs good

 

Well I was just worried since it is fuel cut off and going lean doesn't sound fun. There is no boost so it isn't that bad I guess. I rarely touch the rev limiter. Like 3 times ever...

 

Rev limiters do not cut fuel. That would completely undermine the entire reason for having it.

If you rev your car to the point that the ignition cuts the spark (not fuel) then you basically just fatten, read: dumped fuel, into a combustion chamber that has just had its ignition cut. If the system worked the other way, as you describe, then you would lean the chamber and in turn create a detonation environment.

The same idea works on a boosted car (Evo/Sti etc). If you over boost/rev, your ignition cuts, not your fuel... Can you imagine your fuel cutting on a boosted vehicle at 9k rpm? Boom much?

Fyi...

 

I had a friend in high school that had a 1991 Civic DX hatchback with the stock D15B2 and at that time B-series swaps and LS-VTEC were the things to do. He wanted to do an LS swap but his dad would not pay for it as long as the car ran fine the way it was. Immature, yes, but we all live, learn, and grow out of high school shenanigans, but in order to get the swap he attempted to blow up the D by driving to his work (23 miles from his house) on the freeway in second gear(??) to where the car was hitting the rev limiter continuously. He did this many times and the car never had problems. He didn't get the swap and eventually gave the car to his younger brother who still drives it to this day with no issues. Honda engines (at least those damn econo Ds) are tough.

 

after he popped the tire in the first vid, it sounded like it was supercharged lol

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Keebler &raquo;</TD></TR><TR><TD CLASS="quote">Rev limiters do not cut fuel. That would completely undermine the entire reason for having it.

If you rev your car to the point that the ignition cuts the spark (not fuel) then you basically just fatten, read: dumped fuel, into a combustion chamber that has just had its ignition cut. If the system worked the other way, as you describe, then you would lean the chamber and in turn create a detonation environment.

The same idea works on a boosted car (Evo/Sti etc). If you over boost/rev, your ignition cuts, not your fuel... Can you imagine your fuel cutting on a boosted vehicle at 9k rpm? Boom much?

Fyi...</TD></TR></TABLE>


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hondata k-pro manual &raquo;</TD></TR><TR><TD CLASS="quote">
6.6.2 Rev Limit Parameters
Note: All rev limiters operate via fuel cut.
Overall Rev Limiter
This is the main engine speed limiter value.
Do not increase the rev limiter unless you are sure all the components of the engine will withstand the
greater stress.
Launch Rev Limiter
The launch rev limiter operates when the car is stationary. When the clutch is released and the car
</TD></TR></TABLE>


http://hondata.net/media/kprotraining/KManager.pdf

6.6.2 in the flesh

 

I thought they did use a fuel cutoff. At 7100 RPMS...