it's base on your mods/flow of your exhaust system. for example, if you have a test pipe, the 2-step would be faster rather than stock or HFC.

 

i have full 3" lol

 

Can I ask why you want it to be faster? Is this some personal preference so that you can rev in parking lots and sound cool, or do you have a specific reason? Im just wondering, because I just cant see this helping or hurting you for real launching of the car. That and most people run a 6k stationary rev limiter for better 60 foots anyway. Mine is at 5938, and I can care less what it sounds like, all I care is it cuts me 1.7 60's consistently lol.

 

so i can BOOST more...cuz when it's this slow...i only boost about 4 psi...and other evo 8's when they do launch control, they build about 10 psi at about 5500...and they have their stutter faster than me...that's why i'm looking for my stutter to be faster!

 

What's your a/f? STFT/LTFT's in spec? Timing around the limiter at say....~140-160 load cell?

 

i haven't checked my a/f when i'm doin launch control but at wot it's at 11.6 and my timing at the limiter (5500 rpm X 140-160 load) is 21 at the 140 load cell and 19 at the 160 load cell.. and what's STFT and LTFT?..i'm gonna try playin around with the timing and fuel a little bit when i get my car back....

 

Not going to get on you too much for that comment but you learn that in "EFI" courses . Anyways check those figures (ShortTermFuelTrim and LongTermFuelTrim) and make sure they're within standards IMO within 3-5% MAX of each other. It's a start....

 

o well the fuel trims i know are fine for a fact because i always check them when i log my car....

 

I think the issue your talking about is due to your BOV opening partially as your trying to rev.

On a free reving engine, loads are fairly low, you have to use a higher spring seat pressure in your DV so it isn't opening and closing as your engine bounces off the limiter as there isn't enough pressure to keep the valve closed while building boost, it works against the valve without the assistance of pressure on the diaphragm to keep it closed.

Understand that this is a tradeoff as increasing this pressure can affect drivability and cause compressor surge at light loads.

Anti-Lag systems generally use different methods to generate additional exhaust volume. The simplest systems retard timing so that expanding gases end up in the header and turbo which helps spool the turbo and build boost. Don't expect to easily be able to do that with the ECU, there are some features in the JDM car, but they don't generally work as the air injection is not present on USDM cars. Plus true anti-lag systems will damage your turbo due to extreme heat and the shock it places on the turbine shaft.

Yeah I know, complex answer to a simple question, but for most of you guys, if you want to build a bit more boost pressure on launch, check your DV settings and reduce the amount of timing at slightly higher (log the load) loads.

In general you'll see 4psi to 10psi, this is normal and depends alot on your mods, restrictions, don't forget many of you guys run cams which will affect this also.

 

Log your stationary rev limiter to find out exactly what load, timing, and afr you are running. Since I noticed you said you do log other things, Im surprised you havent done a log of just that. That way you can figure out exactly what load cell your in to adjust it. Problem I see with that is it WILL affect driveability, anytime you hit 5500rpm and that load cell.

I would check your DV like Jack said...are you still running the stock VIII DV?

 

no i'm running the jdm mr dv and i haven't logged the stationary rev limiter yet because i just noticed this problem recently and recently my car doesn't have a tranny....so when I get the car up and running, i'll log it.....

 

try this brotha in cells 120-160 set/retard timing to 4-5 degrees @ the rpm your stationary rev is set. I did that rpm 6k (i have set @ 6k) as well as 5500 and 6500 just to be safe. your timing is a bit high and thats why the rev bounce is low as well as the boost. she should bounce fast as well as build about 10-12psi

if you want to get creative add some more fuel in the same area she will probably build more LOL

 

Ya just keep in mind that what your doing now affects your normal driving in those areas as well. Me personally I wouldnt want a timing dip right in the middle of my torque curve.