rev limit??
rev limit??
I know this question has been asked so im sorry and please don't flame me. I have a revving prob. when i give it gas in neu. it runs up to 7000 and sounds like its gonna die right after that. I don't want this for speed i want it to take off and drift. any one have any ideas???
It sounds like you are hitting the fuel cutoff. The KA doesn't make much power beyond 6000 rpm anyway. And though I don't drift, I don't think you need to be able to rev that high to drift. Its more about finding the limits of the tires, overcoming them and keeping control at the same time. Sure, extra power helps to break the tires loose, but there are guys out there drifting on unmodded KAs, I'm sure.
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benemorius
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Re: (Ajax)
What exactly is the problem?
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ddgsxr504
- Posts: 6024
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Re: rev limit?? (240sx88)
uhhh I think that's called the rev limiter, should be about 6700 rpms as to stop you from revving the engine to 7000 rpms and blowing it the f*ck up!240sx88 wrote:I know this question has been asked so im sorry and please don't flame me. I have a revving prob. when i give it gas in neu. it runs up to 7000 and sounds like its gonna die right after that. I don't want this for speed i want it to take off and drift. any one have any ideas???
Re: rev limit?? (ddgsxr504)
im srry i should have been more clear........it won't bounce of the rev limiter it jumps to 7k and completely dies until its back to 1000. but it used to just bounce off of 7k on the tach.
Re: rev limit?? (240sx88)
ohh and srry bout the poll i didn't mean to put it there. the site was locked up and was set on putting a poll in there
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benemorius
- Posts: 1937
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Re: rev limit?? (240sx88)
Well you see - Nissan put a very special and intellegent feature in the ecu which allows the rev limiter to change dynamically based on the user's driving habits. From the factory, the rev limiter behaves very mildly. This behavior remains the same for most cars as most users very rarely hit the rev limiter by mistake. But if the ecu detects that the user is foolishly hitting the rev limiter too often and for no damn good reason, it changes to a much more dramatic reaction in hopes that the user will take a hint and quit treating the engine like ****.
Ok... in reality I have no idea why it's doing that. Just do your engine a favor and quit reving it that high under no load. In fact, most lightly modded ka's don't make power much over 5.8k or so, so quit reving that high at all.
Ok... in reality I have no idea why it's doing that. Just do your engine a favor and quit reving it that high under no load. In fact, most lightly modded ka's don't make power much over 5.8k or so, so quit reving that high at all.
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DjPantsSpecR
- Posts: 1711
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- Car: 93 Nissan MS13
92 Nissan RMS13
its possible you have a slight flooding problem. I'm gonna go out on a limb and call it a freak occurance. however, it is similar to something i have on my car, and something i've read about once on NICO.
The flooding problem only occurs under wide open throttle. I've only gotten it to occur when missing a wideopen throttle shift from 3rd to 5th.
That is, a wide open throttle blast from second gear into third, only you miss and hit fifth gear. The engine bogs and slowly declines from whatever rpm you're at to 1000. The only thing that keeps it alive is holding your foot to the floor, and even then it usually dies. To remedy the problem, i have to pull the fuel pump fuse, then fire it up til it dies, then reinsert the fuse.
I really have no idea what is going on, but its possible your problem is caused by a vacuum hose that has broken. But it could be one of those freak occurances... so stay away from 7k until you geat a new intake manifold
The flooding problem only occurs under wide open throttle. I've only gotten it to occur when missing a wideopen throttle shift from 3rd to 5th.
That is, a wide open throttle blast from second gear into third, only you miss and hit fifth gear. The engine bogs and slowly declines from whatever rpm you're at to 1000. The only thing that keeps it alive is holding your foot to the floor, and even then it usually dies. To remedy the problem, i have to pull the fuel pump fuse, then fire it up til it dies, then reinsert the fuse.
I really have no idea what is going on, but its possible your problem is caused by a vacuum hose that has broken. But it could be one of those freak occurances... so stay away from 7k until you geat a new intake manifold
Re: rev limit?? (benemorius)
is that why sometimes when i'm cruising around 2000 RPM, the RPM sometimes jump?benemorius wrote:Well you see - Nissan put a very special and intellegent feature in the ecu which allows the rev limiter to change dynamically based on the user's driving habits. From the factory, the rev limiter behaves very mildly. This behavior remains the same for most cars as most users very rarely hit the rev limiter by mistake. But if the ecu detects that the user is foolishly hitting the rev limiter too often and for no damn good reason, it changes to a much more dramatic reaction in hopes that the user will take a hint and quit treating the engine like ****.
Ok... in reality I have no idea why it's doing that. Just do your engine a favor and quit reving it that high under no load. In fact, most lightly modded ka's don't make power much over 5.8k or so, so quit reving that high at all.
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benemorius
- Posts: 1937
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Re: rev limit?? (thouster)
I sincerely believe that Nico would be a better place if I refrained from answering that.
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DjPantsSpecR
- Posts: 1711
- Joined: Fri Jan 14, 2005 12:49 pm
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92 Nissan RMS13