you MUST use the spark cut for nitrous as well. never use fuel cut. [/QUOTE]

and the hondata cuts the ignition right?

 

or at least will hondata let me chose either ign cut or fuel cut, somewhat like the utec does?

 

No, Hondata only cuts fuel. If you want to cut spark go with MSD.

 

ok so ignition cut can knock right, has anyone datalogged fuel cut and see if it happens on fuel cut ?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 18G_prelude &raquo;</TD></TR><TR><TD CLASS="quote">No, Hondata only cuts fuel. If you want to cut spark go with MSD.</TD></TR></TABLE>

so basically the hondata is no good for nitrous apps? but dosent it have nitrous controls built in? now im really confused

 

Whatever you do, don't use only a fuel cut on ANY boosted motor, it would cause major problems. I am personally going to buy the z10 lauch control/2step system. It looks really nice and it cuts fuel & ignition.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tthame1 &raquo;</TD></TR><TR><TD CLASS="quote">Whatever you do, don't use only a fuel cut on ANY boosted motor, it would cause major problems. I am personally going to buy the z10 lauch control/2step system. It looks really nice and it cuts fuel & ignition.</TD></TR></TABLE>

Then what kind of launch control should boosted motors use?

 

I use the hondata launch limiter on my car and I love it. I've wired in a on/off switch as well which I think really is the best way to go... simple to adjust as well

activate the switch... rev and hold to the desired launching RPM while in neutral... push the red button once... once your CEL light flashes once... tap the brake pedal... DONE

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vtekthis &raquo;</TD></TR><TR><TD CLASS="quote">

so basically the hondata is no good for nitrous apps? but dosent it have nitrous controls built in? now im really confused</TD></TR></TABLE>

yeah not to hijack, but can anyone else shed some light on this topic for me???

 

up

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by redline201 &raquo;</TD></TR><TR><TD CLASS="quote">

yeah not to hijack, but can anyone else shed some light on this topic for me???</TD></TR></TABLE>


to clear this up, Hondata is good for nitrous controls just the 2 step others are saying its not good.

 

if i didnt spell taught right then dont read it. haha..

anyways on cars that have big injectors like cars with injectors bigger than 600 cc you are kind of drawn to use ign cut because when u do fuel cut it takes to long for the motor to refuel because there is a higher need for fuel in a car that has 600 cc injectos pressuming that the motor puts out over 450 horses. and would need to refuel about 340-370 worth of horses at that particular point in the rpm band.

ignition cut is the best on "race cars" because the ecu doesnt have to refuel again all that high horsepower.... i have no clue how much sense this makes because as i am writing all this i am thinking that the motor is constantley refueling the motor at every rpm. but maybe it may be an issue of there not beeing high enough fuel pressure. but then again if there is a need for higher fuel pressure then it means that turbo pressure went up at the same time obviously fuel pressure will go up also.

damn i am simply just not sure. all i can say for sure is that on race cars if you have 2 banks of injectors its ok to use fuel cut. but if you are running big injectors 600 cc or higher then you should use ignition cut. also ignition cut helps spool the turbo up "only if you have a way to retard timing only for when your 2step is beeing activated".. or if you are slick like that you can just go to that load site and have a low amount of timing at only that particular site, since the car wont go through there when it is driving.. you should see boost as high as about 15 or maybe even higher. i'm not 300 % sure but i think you could make the turbo spool a bit higher.

now on how safe one or the other is.. i dont know but i think that the fuel cut will only be as safe as the timing might be at the rpm point in witch the fuel cut is activated. what i believe the problem is, is that the turbo is getting very very hot. the timing beeing so low (or so retarded) means that the combustion will still be occuring even after the gasses are beeing expelled out of the combustion chamber out through the valves and present in the manifold. this explosion occuring in the manifold ("sorta") is what is spooling your turbo at such a low rpm point and without having any load on the motor (the car driving as supposed to just beeing reved at the light).

the mitsubishi evolution 4 5 6 7 and 8 in japan have an anti lag feature that is activated when the throttle is held at 100% for over 3 seconds or so. makes the ecu think u wanna have fun and helps you out. now this is a different type of anti lag system. (this is what 2 steps realli are--anti lag systems) it uses the egr valve and air that comes out of the blow off valve. i am not about to start explaining how it works because i truthfully just dont realli know. all i know its pretty cool and interesting. i will put a link to where you guys can read about it at the end of this post. but one thing that i have to talk about here is the exhaust system it has a box to catch the flames that are produced from using low timing as i was explaining before. i dont think it would be cool to sell a car that shoots flames out the exhaust right from the factory. when this car is modded and has a free flowing exhaust system in it without a chambered muffler and without the box, you can actually see the flames coming out of the exhaust of this car in stock form with the factory ecu and factory motor no moddification exept for just the exhaust.where i am trying to get at is. that if a company such as mitsu uses a 2step like system with all the same basic principles then i would think that it is safe to use the 2step as much as you'd like just as long as you dont over heat your motor or the structural temp of the turbo.

this information might not all be acurate but the basic's that i am explaining are pretty simple and the thing is dont use the 2step so much that you start to overheat the ***** out of your turbo and you will be ok.

theres the link
http://lancerregister.com/show...ber=1

Ed-