ExVtec

I setup the Launch Control on the S300 last night after reading this thread..

https://honda-tech.com/zerothread?id=1753767

It worked..starting building boost and all...no flames out the exhaust..but I could care less about that...

Anyway...I noticed a **** ton of unburnt fuel getting thrown out the exhuast...was laying on the driveway...

I tried different settings and it seemed to help...HOWEVER while watching my wideband it kept saying LEAN...which worried me of course..so I never stayed in it..

Is this normal? I was assuming the Wideband would read a/f still...even though the combustion isn't in the cylinder..??

Also any danger to the motor since I am still on stock sleeves?

Thanks all in advance.

DRIVENRacing

what was your fuel/timing set at as far as launch control??

GetawayInMoscow

Of course it is going to say lean, there is no fuel in the cylinder, that's how fuel cut works, it's supposed to be like that.

If you really read the thread you posted you would have seen that.

You're not going to break anything, but it's not made for you to impress your friends so you stay on the 2 step for 5 minutes.

Stay on it long enough to build boost and launch right and you are golden.

ExVtec

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GetawayInMoscow &raquo;</TD></TR><TR><TD CLASS="quote">Of course it is going to say lean, there is no fuel in the cylinder, that's how fuel cut works, it's supposed to be like that.

If you really read the thread you posted you would have seen that.

You're not going to break anything, but it's not made for you to impress your friends so you stay on the 2 step for 5 minutes.

Stay on it long enough to build boost and launch right and you are golden.</TD></TR></TABLE>

Don't give me ****..it's not to impress my friends...it's strictly for the track.

I don't understand why it wouldn't register on the wideband...the sensor is in the downpipe...it's still has to pass the sensor...??

As for the settings I did try several...

I beleive activation was 4500
Launch was 5000
Fuel 0, 10, 20
Timing 0, -10, -15

There were several suggestions in the other thread...I was just tinkering around..

I never stayed in it..as it didn't sound "heathy...lol..

First experience w/launch control.

Rage Cayman

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

Don't give me ****..it's not to impress my friends...it's strictly for the track.

I don't understand why it wouldn't register on the wideband...the sensor is in the downpipe...it's still has to pass the sensor...??

As for the settings I did try several...

I beleive activation was 4500
Launch was 5000
Fuel 0, 10, 20
Timing 0, -10, -15

There were several suggestions in the other thread...I was just tinkering around..

I never stayed in it..as it didn't sound "heathy...lol..

First experience w/launch control.

</TD></TR></TABLE>
You need to first understand the opperation and how an oxygen sensor works.....It measures the amount of oxygen content in the BURNT MIXTURE not in the liquid gas.
If you pour a gallon of fuel pass the O2 sensor it will forever read lean a F@$k

Come on man ..... do some reading , stop listen to others

SovXietday

X2, all of that unburnt fuel flying past the O2 sensor isn't going to get picked up... it's called an oxygen sensor for a reason.

alterdcreations

isn't anti lag a spark cut on the s300 not a fuel cut?

bigbadboy

ur going to get a lot of unburn fuel no matter wat u do really. i have mine set at w/ 30% Fuel, -30 ign. works very well amd u'll see some flames

ExVtec

I'll give it a shot again..I still figured it would show something on the display...as it is still igniting, just not in the cylinder...??

-30 timing 30% fuel...

So...as for the stock sleeves question...should I be ok?

B/c the biggest strain should be on the valves/turbo/manifold correct?

LeGeND4LiFe

If its working for you, conservative settings and no flames is probably a good thing.......the hotter you make it, the quicker your parts will fail. Anti-lag can trash a turbo pretty quickly if it's too aggressive.

ExVtec

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LeGeND4LiFe &raquo;</TD></TR><TR><TD CLASS="quote">If its working for you, conservative settings and no flames is probably a good thing.......the hotter you make it, the quicker your parts will fail. Anti-lag can trash a turbo pretty quickly if it's too aggressive.</TD></TR></TABLE>

Well my turbo's don't grow on trees..so the "easier" it is the better I'll be..

So I should start w/0 timing and work up from there?

How will I know when to add fuel..?

Is there a rule of thumb to follow?

GetawayInMoscow

Yeah, the rule of thumb is keep changing setting until you build the amount of boost you want.

Our ECU's can only retard timing so much, so after a certain point it wont matter if you enter -30 or -200 because it wont make a difference.

ExVtec

So therotically -10 is "safer" then -30 in regards to the turbo?

So basically start w/0 timing, and move up...and add fuel as well..

See were it puts me...more or less trial and error..?

GetawayInMoscow

Start with some timing retard. From what I have seen, too much fuel will negate the effects of pulling the timing.

Try -10 with 15 for fuel at first and keep subtracting more timing until you can build the boost you want.

Also if your turbo is fully spooled at 5k you are going to have to set you 2-step to at least that to get it to build a lot of boost.

ExVtec

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GetawayInMoscow &raquo;</TD></TR><TR><TD CLASS="quote">Start with some timing retard. From what I have seen, too much fuel will negate the effects of pulling the timing.

Try -10 with 15 for fuel at first and keep subtracting more timing until you can build the boost you want.

Also if your turbo is fully spooled at 5k you are going to have to set you 2-step to at least that to get it to build a lot of boost.</TD></TR></TABLE>


I'll try that. Yea, it comes on @ 5500...

Thanks.