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Old Aug 22, 2007 | 08:41 PM
  #16  
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so is dropping the revlimit to 5000 when TPS > 90% and clutch down the best way to go?
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Old Aug 22, 2007 | 09:13 PM
  #17  
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Originally Posted by Nuked
Correct. Only thing is that it would also have to be above the speed threshold of the normal two step. You would basically end up with three rev limits.
1- normal high end limit (clutch out, car rolling)
2- launch limit (clutch in, car stationary)
3- no lift (clutch in, car rolling)

I have no idea about programming. I assume the two step works off the speed sensor as well to engage it (I think dsmlink does this). This nolift feature would also have to work off the speed sensor in conjuction with clutch switch.

Thanks for looking into this tephra. I think it would be a great addition to the factory ecu. Something else.... Would it be possible to add maps to pull timing and add fuel when these limits are engaged? Might make larger turbos spool better between shifts and at launch. Similar to a Utec or AEM?

SQ
Yes, DSMLINK uses the speed sensor and top clutch switch input.

Everything is configurable, but I think they default it to speed > 7mph (so you don't hit that rev limiter at a launch or shortly thereafter) and then the rev limit to whatever you want, like 5500, etc.

The important thing is that the right clutch switch input is used, the one that triggers as soon as you touch the clutch pedal.


Eric
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Old Aug 22, 2007 | 09:30 PM
  #18  
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Originally Posted by tephra
so is dropping the revlimit to 5000 when TPS > 90% and clutch down the best way to go?

The TPS would have to be greater than 90% if you leave the throttle open/WOT while shifting. I think the best way to do it, if possible, is all these must be met to engage it:

Clutch switch (top one that engages as soon as pedal is pushed) is engaged
TPS is <90%
speed is < 7mph or so

This would allow it to stay "normal" during part throttle shifting and not mess up the two step or normal rev limiter.

SQ
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Old Aug 22, 2007 | 10:47 PM
  #19  
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The resulting nlts/anti-lag option is pretty nice for many situations. I have DSMlink as well. If this option is able to be reproduced with careful coding of the ecu, by all means. I encourage those capable, to do it.
Its worth the trouble!

DSMlink also offers some timing controls and fuel enrichment adj with this.
How effective at spooling it is, I couldn't say for absolute sure.
It IS 100% effective at making the car toss 3-5ft fire ***** out the tail pipe however.

Last edited by Asmodeus6; Aug 22, 2007 at 10:54 PM.
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Old Aug 23, 2007 | 04:43 AM
  #20  
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some one give tephra some cash this poor guy puts all his time into EVOm
thanks for the effort buddy
donate some bucks so this kid can buy some coilovers
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Old Aug 23, 2007 | 05:18 AM
  #21  
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I think you guys are over thinking the whole situation. All you would need to do is disable the fact that the car only hits the launch limiter when you are at a dead stop. Most of us have our stationary limiter around 6K which is right inline with the rpm you would want anyway.

How you would make the stationary limiter not care about your speed I have no idea, but I am pretty sure someone around here can!
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Old Aug 23, 2007 | 05:48 AM
  #22  
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Originally Posted by tephra
so is dropping the revlimit to 5000 when TPS > 90% and clutch down the best way to go?
for testing sure, but in the real world many people spin to 8k and the RPM's never get below 5k on a drag run so think it needs to be adjustable to fit the car.
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Old Aug 23, 2007 | 07:02 AM
  #23  
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yup 5k and default would be adjustable of course I just wanted to get the theory right
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Old Aug 23, 2007 | 12:16 PM
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Originally Posted by tephra
yup 5k and default would be adjustable of course I just wanted to get the theory right
tephra, post up a link to your paypal so I can send you some duckets. or a PM.
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Old Aug 23, 2007 | 01:46 PM
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Originally Posted by Mellon
for testing sure, but in the real world many people spin to 8k and the RPM's never get below 5k on a drag run so think it needs to be adjustable to fit the car.
Absolutely. If your avg gear entering RPM is higher than 5000 it will bog the car until the clutch parameter is up. It has to be based on VSS.

You have launch rpm setting.
You have a static rev limit.
What you need to add is a shift limit. (or what the car will rev to, clutch in, VSS > X, ) And modify this activation according to load, (TPS) RPM above X.

This setup works better when the shift limit is set slightly higher than avg gear entering rpm, as opposed to lower.

I come out of say 1st, and 2nd gear in the DSM sitting on my shift limiter/static rev limiter (fwd, wheelspin) typically both. (1st gear <1sec) Because I can regulate the spin with the ALS without bogging it. (clutch in&off, WOT) It ain't pretty. But it damn sure helps. I never see 5k rpm again. From gear one. (9250 limit) (7800 shift) (3500~3750 launch wot/9 psi avg leaving the line)

Its a night and day difference from a lift bog. Get it working you'll see what I mean. (It will obviously be more pronounced on cars with wheel spin)

Last edited by Asmodeus6; Aug 23, 2007 at 01:50 PM.
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Old Aug 24, 2007 | 04:44 AM
  #26  
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Subscribing to this thread.

I, for one, am certainly keen to get NLTS enabled on my track map. I'm on ECUFlash, with no plans to change
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Old Aug 24, 2007 | 06:30 AM
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lots of talk from alot of people on this im sure it will happen soon
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Old Aug 24, 2007 | 06:57 AM
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ok guys, put your votes in for which ROMID to do this mod for first hehe
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Old Aug 24, 2007 | 06:58 AM
  #29  
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96940011 of course....covers all USDM 05 Evos.
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Old Aug 24, 2007 | 07:00 AM
  #30  
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9747001.xml

Ready to send!
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