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speed limiter delete

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Old 03-22-2007 | 01:22 AM
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speed limiter delete

I have a JDM type S that is speed limited to 180 km/hr . This is a very bad thing on track days when I find myself being overtaken by 2L BMWs on the back straight.

I've found a unit from HKS that I can get brought in for $500 nz - bleh ! There is one from FEED as well but I can't find a local supplier & I can't read Japanese so don't feel confident getting it off the website. Would be happy to pay $200 but $500 seems OTT .

Another alternative could be to disconnect the speedo on track days - anyone know if this would work ?
Old 03-22-2007 | 01:38 AM
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To remove speed limit/rev limit:

1. Flash ECU. Racing Beat and Re-Amemiya does it.

2. Buy Interceptor-X EMS (but more expensive option...but more options). You can configure it to remove speed/rev limit.
Old 03-22-2007 | 01:57 AM
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If you don't mind the loss of traction control and the CEL, you can probably just pull the wheel speed sensors.
I haven't tried it, though.
Old 03-22-2007 | 02:01 AM
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Originally Posted by MazdaManiac
If you don't mind the loss of traction control and the CEL, you can probably just pull the wheel speed sensors.
I haven't tried it, though.
what about pulling the speedo cable out of the gearbox ?
Old 03-22-2007 | 02:05 AM
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Originally Posted by sosonic
To remove speed limit/rev limit:

1. Flash ECU. Racing Beat and Re-Amemiya does it.

2. Buy Interceptor-X EMS (but more expensive option...but more options). You can configure it to remove speed/rev limit.
Neither is a good option for me . Already have an aftermarket ems which won't do it .
Old 03-22-2007 | 02:13 AM
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Originally Posted by Brettus
what about pulling the speedo cable out of the gearbox ?
The speedometer doesn't get its measurements from the tranny. It gets it from the wheel speed sensors.
The manual tranny only has a back-up sensor and a neutral sensor. There is no tailshaft speed sensor like on older cars.
Old 03-22-2007 | 02:17 AM
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Originally Posted by MazdaManiac
The speedometer doesn't get its measurements from the tranny. It gets it from the wheel speed sensors.
The manual tranny only has a back-up sensor and a neutral sensor. There is no tailshaft speed sensor like on older cars.
OK - which wheel works the speedo - surely not all 4 ?

I'll be interested to see how long you get away with that avatar .... Hard to concentrate with that one

Last edited by Brettus; 03-22-2007 at 02:20 AM.
Old 03-22-2007 | 02:22 AM
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Yep, all 4.
However, if you pull one, you get an ABS/DSC/TCS fail and the speedo continues to register.

What is wrong with my avatar? They are fully clothed and are not even making skin-to-skin contact! (Which is more than I can say for my others.)
Old 03-22-2007 | 02:35 AM
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Wait... if I spin my tires the speedometer recognizes this. If I pulled the rear wheel sensors it would still register speed? Maybe this is why the 8 does horrible on the dyno. (But we already knew this as it has been covered... in theory).

Has anyone pulled all the wheel sensors and then did a pull on the dyno?
Old 03-22-2007 | 02:36 AM
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I approve MazdaManiac's Av.




Old 03-22-2007 | 02:40 AM
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i would love to know the real output of the speed / mph works.

beers

Last edited by swoope; 03-22-2007 at 02:55 AM.
Old 03-22-2007 | 02:41 AM
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Originally Posted by 4 years to Supercharge


I approve MazdaManiac's Av.




yes - I totally forget what we were talking about now
Old 03-22-2007 | 02:52 AM
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Wow! Topping out at less than 112 MPH would nullify the sports car effect a few degrees Celsius.

Does it limit in the next gear down? Some vehicles are speed governed in just the top gear.

Did you see this for sale thread?

https://www.rx8club.com/showthread.p...ight=hks+speed

Last edited by BoosTED; 03-22-2007 at 03:54 AM.
Old 03-22-2007 | 06:15 AM
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What is wrong with my avatar? They are fully clothed and are not even making skin-to-skin contact! (Which is more than I can say for my others.)[/QUOTE]

I find this particular query ironic and humorous in that MM becomes quite agitated from time-to-time when people post with non-sequitur and otherwise ill-informed comments, yet his avatars as of late have nothing whatsoever to do with the subject matter of this forum nor anything to do with his identity. That is, unless he is actually a pornographic photographer ...... As far as being more than he can say with regard to previous avatars, MM have you ever considered that people may have been, at the least, questioning your choices of avatars but hadn't said much about them because the content of your posts is what really matters? Still love ya, Man, but I'm just giving you a "heads-up" on the social politics and state of political-correctness of the day. I have been a victim of the P.C. police at work with regard to the racial-politics issue. That was while I had an African-American girlfriend at the time, if you can believe it.
Old 03-22-2007 | 07:19 AM
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These days I check a thread if I see that MazdaManiac is the last one to post just to see his avatar. I'm sure I'm not the only one.
Old 03-22-2007 | 07:31 AM
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Different strokes, that's all. I am not personally offended but I know some who are bothered a bit. As for my own feelings, especially on these matters, I am not ego-maniacal enough to think that the entire World must cater to my own beliefs. As MM did allude to, there are far more offensive things in life than a guy's choices in avatars. I think those who are hypersensitive on issues such as these tend to confuse that which they would consider tasteless and that which is truly offensive. A little skin, even with multiple characters in the photo, is not big deal. Invasive photography along the lines of Hustler Magazine, maybe over the top. MM is really rotating his avatars pretty often, isn't he? What's also funny to me is that there were a few people who bitched, early on, when I put a shot of my nitrous tank on my avatar because they insisted it encouraged street racing.
Old 03-22-2007 | 12:14 PM
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CROSSFIRE!

Sorry.

I know that nitrous bottle encourages me to street-race, but I'm pretty incorrigible.

I use the avatars that I do because it makes me happy. That it makes some other people happy is a nice plus. That it makes some people unhappy is also a plus, so it is a win-win-win situation.

Why, exactly, are we trying to defeat the speedo again?
Old 03-22-2007 | 12:25 PM
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One thing I really like MM, besides your ireverrence, is that you take all of my comments exactly as I intend them. Sometimes I grit my teeth as I hit the "post" key with the thought that you might misunderstand me. You never let me down by knowing exactly where I am coming from with my own comments. Thanks.

Brettus was having a problem at the track by not being able to access the full 150 mph that the RX-8 is supposed to be capable of. Is it possible to remove a fuse of some kind to disable the wheel sensors? I read that as a proposition for dyno-testing but I haven't tried it nor thought about it myself.
Old 03-22-2007 | 12:28 PM
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Originally Posted by 4 years to Supercharge


Wow! Topping out at less than 112 MPH would nullify the sports car effect a few degrees Celsius.

Does it limit in the next gear down? Some vehicles are speed governed in just the top gear.

Did you see this for sale thread?

https://www.rx8club.com/showthread.p...ight=hks+speed

This halfway down back straight of a race track in 4th gear (very depressing) . I don't go that fast on the open road so not normally an issue .
Thanks for the link .
Old 03-22-2007 | 12:36 PM
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Originally Posted by Charles R. Hill
One thing I really like MM, besides your ireverrence, is that you take all of my comments exactly as I intend them. Sometimes I grit my teeth as I hit the "post" key with the thought that you might misunderstand me. You never let me down by knowing exactly where I am coming from with my own comments. Thanks.
Well, I find you quite easy to follow, so I can't say its any particular talent on my part to understand your meaning.

Hmm. I'm sure its been covered elsewhere, but is this speed-limiting a Pacific Rim issue?
I know I can't hit a limit anywhere. 4th tops out around 120 MPH, though I'd never be in 4th above 105 or so in "normal" driving.
Old 03-22-2007 | 12:40 PM
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MM, maybe we both are just "twisted" in a similar fashion. Whatever the case, I can't help but feel complimented to be so well understood by a person with the stature that you have around here. Thanks. BTW, I'd love to be able to top out 4th gear in the 1/4 mile sometime over this coming summer.
Old 03-22-2007 | 12:43 PM
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Originally Posted by MazdaManiac
Hmm. I'm sure its been covered elsewhere, but is this speed-limiting a Pacific Rim issue?
.
Japanese domestic market only . My car was imported from Japan - probably 1/2 of all cars in this country come (used ) from Japan.
Old 03-22-2007 | 12:48 PM
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Originally Posted by Charles R. Hill
BTW, I'd love to be able to top out 4th gear in the 1/4 mile sometime over this coming summer.
That's a LOT of power.
I'm shifting into 4th right as I cross the end trap.
Old 03-22-2007 | 03:22 PM
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I'm totally offended. Here we are discussing deadly serious subjects such as speed limiter removal and stinky transmission fluid, and you distract us with your hot lesbian action.

I have to say, I'm very impressed with the moderator's hands off attitude on this board. We're all adults here, we can tell right from wrong ourselves.

Last edited by climacus; 03-22-2007 at 03:26 PM.
Old 03-22-2007 | 03:44 PM
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Originally Posted by climacus
I'm totally offended. Here we are discussing deadly serious subjects such as speed limiter removal and stinky transmission fluid, and you distract us with your hot lesbian action.
They aren't lesbians - they are just friendly.

Originally Posted by climacus
I have to say, I'm very impressed with the moderator's hands off attitude on this board. We're all adults here, we can tell right from wrong ourselves.
So far, so good.
In the not too distant past, there were some "complications" from my avatars.
Hopefully I have struck a balance between tasteful and rude.

Besides - Bewbs are healthy! Never has a child been harmed by a bewb. In fact, they are nurtured by the very sight of bewbs, so 4 is better than 2!


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