anti-lag help

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Old Mar 4, 2004 | 07:06 PM
  #1  
ChaosUnbound's Avatar
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From: vienna, wv, United States
Default anti-lag help

Iv bean doing some research on anti-lag systems and I have some questions.

1. Is AEM the only one that make an ECU that has this feature or dose Hondata have it too?

2 I know this feature burns up parts but iv heard of mild systems that aren't as bad and you are able to turn it on and off but iv heard you have to drill out a part of the intake to allow more air to pass threw when the throttle valve is closed is anyone familiar with this setup?

3 im turboing my f22a6 to sustain me while I build up a turbo H22 do you think this setup will work on my accord?

Any help would be appreciated.
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Old Mar 4, 2004 | 07:24 PM
  #2  
Jay Dirt's Avatar
 
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From: Jackson, NJ, J
Default Re: anti-lag help (ChaosUnbound)

this anti lag sounds like a gimick..

just get your kit together and start boosting it, i dont think lag will be an issue.
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Old Mar 4, 2004 | 07:26 PM
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Default Re: anti-lag help (ChaosUnbound)

all sorts of systems support anti lag.

the AEM supports race style anti lag, and rally style antilag

the haltech e6k supports it, motec, and many others..

the hondada as far as i know does not support it.

you do not need to do anything to the exhaust system for mild to moderate anti lag....

basically it retards timing, and dumps fuel, and when you put your foot on it, it
ignites and creates lots of heat which spools the turbo.

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Old Mar 4, 2004 | 07:32 PM
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Default Re: anti-lag help (lazerus)

ok my experience is that anti-lag and a 2 step are two different things.
The two are setup completly different.
Which are you refering too
Do you need a 2nd rev limiter to build boost off of or are you trying to setup a comeplete anti-lag setup?
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Old Mar 4, 2004 | 07:33 PM
  #5  
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Default Re: anti-lag help (lazerus)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lazerus &raquo;</TD></TR><TR><TD CLASS="quote">
the AEM supports race style anti lag, and rally style antilag

</TD></TR></TABLE>

my point exactly....
the race style being a two step and the rally style being a true anti-lag
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Old Mar 4, 2004 | 07:36 PM
  #6  
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Default Re: anti-lag help (lazerus)

so all i nead is the ecu and it pritty much takes care of thing?

im talking about an anit-lag for road racing not the 2 step for drag
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Old Mar 4, 2004 | 09:23 PM
  #7  
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Default Re: anti-lag help (ChaosUnbound)

Antilag, though cool, will destroy your turbo. The idea is to have the timing retarded so much, and the fuel dumping at such a great volume, that the fuel will combust late as well as IN the turbo from the ambient heat. Needless to say, having things blowing up inside your turbine housing is not going to do wonders for your turbo, but will for your spool time. Rally teams that run anti-lag shoot large flames out the back of their tailpipes, usually because the anti lag is SO extreme that there is unburnt fuel detonating at least as far back as the downpipe, meaning your turbing is not only experiencing comustion, but liquid interference in its rotation. Its really cool, makes for some wicked quick spool, but its going to cost you in replacement parts and new turbos. Just food for thought.
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Old Mar 5, 2004 | 10:10 AM
  #8  
Nid Styles's Avatar
 
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Default Re: anti-lag help (Distorted)

Why not just run higher compression?
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Old Mar 5, 2004 | 11:19 AM
  #9  
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Default Re: anti-lag help (nd_styles)

Running higher compression pistons is not going to increase spool time. It will increase low end torque from the engine, but the volume of air spinning the turbine will not change, it will only become compressed further inside the engine. You'll see gains in low end, somewhat replacing the need for quicker turbo spool, but at the same time you may have to lower your boost. Honestly, between the costs of a new turbo frmo running anit-lag, or new pistons, the machine work, as well as time and hassle, If spools such a problem you might want to get a GTXXR class turbo from Garrett.
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Old Mar 5, 2004 | 12:13 PM
  #10  
JDogg's Avatar
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Default Re: anti-lag help (Distorted)

thank you distorted... i have been trying to tell people that for god knows how long...

the drag race anti lag in the ems works great... 1 bar of boost on a sc61'd b16 at the line. hehe

if you only hold it for the last split sec before you launch its not going to cause any immediate damage.. but if you use it at every stop light and hold it for 5 mins at the time you will damage parts.

i have never tried to use the rally style anti lag in the ems... i have never had a reason to... it is a BAD idea in a street car, basicly the car will have **** for power unless you are full on the gas, other wise its pulling spark as well as timing and dumping fuel
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Old Mar 5, 2004 | 02:29 PM
  #11  
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well, seeing as you don't already have a turbo car and your talking about lag problems, i assume you have never ridden in a turbo car at all. If you have then it must of been one hell of a turbo in there. However, im thinking your comming from playstations gt3 when you throw on a stage 4 turbo and you have to rev it in neutral to get it going. Lag isn't really a problem w/most street cars. And seeing as it is an accord that is what i am assuming that it will be(no disrespect). And if i am wrong about what you are setting up, you could program in a shot of nitrous for launch purposes. Cutting it off after it starts spooling. However, build your setup, and if you think it is still a problem then come and ask the questions. But i think you will be fine.
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Old Mar 5, 2004 | 02:30 PM
  #12  
ChaosUnbound's Avatar
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Default Re: anti-lag help (JDogg)

OK i don't care about the turbo or the motor both will eventually be replaced and i can get turbos by the dozen. this is something i want to do just because i can. its not like im going to be running around with this on all the time. i know about the 2 step feature so i don't need any information about that. i just wanted to know if there would be any complications setting up the system on my accord.
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Old Mar 5, 2004 | 02:40 PM
  #13  
Accordcentral's Avatar
 
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From: White Lake, MI, 48386
Default Re: anti-lag help (ChaosUnbound)

lag is an intersting term. Vividly defined as the time it take a turbo to build boost to its maximum setting once at the RPM where the engine has enough outflow to spin the turbine. In laymans terms. Once your at a rpm where the engine has enough air pumping into and out of it its a waiting game. Yes retarding timming will hel.p reduce lag sigficantlyly. Although a EGT probe is definately your firend on this. Here is the timming table from my engine and it shows how when im in decel or at low loads i pull spark then ramp it back up to get the compressor moving.


Main Spark Advance Vs. MAP Vs. RPM

RPM kPa
30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190
400 23.2 23.2 23.2 23.2 19.7 19.7 19.0 19.0 16.2 13.0 12.7 11.3 12.0 12.0 12.3 12.3 12.3
600 23.2 23.2 23.2 23.2 19.7 19.7 19.0 19.0 16.2 13.0 12.7 11.3 12.0 12.0 12.3 12.3 12.3
800 23.2 23.2 23.2 23.2 19.7 19.7 19.0 19.0 16.2 13.0 12.7 11.3 12.0 12.0 12.3 12.3 12.3
1000 23.2 23.2 23.2 23.2 19.7 19.7 19.0 19.0 16.2 13.0 12.7 11.3 12.0 12.0 12.3 12.3 12.3
1200 24.6 24.6 24.3 23.2 19.7 19.7 19.0 19.0 16.2 13.0 12.7 11.3 12.0 12.0 12.3 12.3 12.3
1400 27.1 27.1 26.7 24.3 19.7 19.7 19.0 19.0 16.2 13.0 12.7 11.3 12.0 12.0 12.3 12.3 12.3
1600 30.6 29.9 29.2 27.1 24.3 24.3 24.3 23.6 21.4 16.2 11.3 14.1 12.0 12.0 12.3 12.3 12.3
1800 32.7 32.7 32.7 28.8 24.3 27.1 27.4 26.4 22.9 16.2 11.3 14.1 12.0 12.0 12.3 12.3 12.3
2000 35.2 35.2 35.2 33.0 30.6 30.6 29.5 27.8 25.3 16.2 11.3 14.1 12.0 12.0 12.3 12.3 12.3
2200 37.6 37.6 36.9 35.2 33.0 32.3 31.3 29.9 27.4 22.5 17.9 19.3 15.8 15.5 12.7 12.7 12.7
2400 38.7 38.7 38.7 37.3 34.5 34.1 33.0 31.6 28.8 23.9 19.7 19.7 15.8 15.5 12.7 12.7 12.7
2800 41.1 41.1 41.1 41.1 35.2 34.1 34.1 30.9 30.2 26.0 22.1 20.4 15.8 15.5 12.7 12.7 12.7
3200 42.9 42.2 41.8 41.8 35.2 34.1 34.1 31.6 31.3 26.7 22.9 20.4 15.8 15.5 12.7 12.7 12.7
3600 43.6 42.9 42.5 42.2 36.6 34.1 34.1 33.0 32.0 27.4 24.3 22.1 17.6 16.5 14.1 13.7 11.6
4000 43.9 42.9 42.9 42.5 36.6 34.8 34.1 33.0 32.0 27.4 24.3 22.1 17.6 16.5 14.1 13.7 11.6
4400 43.9 42.9 42.9 42.5 39.0 35.2 34.1 33.0 32.0 27.4 24.3 21.4 17.9 17.2 15.1 14.8 12.7
4800 43.9 42.9 42.9 42.5 39.0 35.2 34.1 33.0 31.6 27.4 24.3 21.4 17.9 17.2 15.1 14.8 12.7


dammit the forum software wont allow for tables. copy and paste this into something like note pad or similar and itll all become clear. coloumns on the left are RPM increments and the row across the top is pressure as read by the MAP sensor.



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Old Mar 5, 2004 | 02:46 PM
  #14  
ChaosUnbound's Avatar
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From: vienna, wv, United States
Default Re: (tegmech)

no i done have a turbo

yes i have driven many turbo cars stock and modified both i have experienced lag in when pushed hard on a course where there are short straits and many turns

and your gt3 car tuning skills must suck if you have to rev up like that (no disrespect)

i hate nitrous

im not building up my present motor
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Old Mar 5, 2004 | 03:26 PM
  #15  
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From: White Lake, MI, 48386
Default Re: (ChaosUnbound)

atually thats a pump gas tune for my personal vehicle. and of course tunning for 91 octane with 10.5:1 flat top pistons etc does make it a challeneg to generate good power with no knock. point is i was demonstrating how with a Stock or after market ECM you can use the timming table to reduce lag. There a few other factors in vlvoved. But my car with a 2.0L can spool a .63 a/r stage 3 turbine wheel with a to4e .47 trim wheel compressor by 2800rpm to around 10-12 psi without much wiating.Thats the timming table it took to actually get good driving manners. Dont go thinking that more advance is better for power either. ive found the converse to be true on many occassions.


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