So I've been getting a lot of PM's about this. I'll try my best to set up a DIY for everyone here:



Start: What Rpm you want your Two Step at
IGN cut rpm: Regular rev limiter
Shift Up: Manuals don't need to worry about this. Just set it about 1000 lower then the Ign Cut rpm
Throttle Position: I would use 100, this is used to determine when Two Step kicks in
IGN adjustment: This box is used for the ADJ boxes. Input a value, initiate Two Step, watch AFR gauge and determine how much more or less you need.
# of V.S. pulse: id use zero. This uses your vehicle speed to determine when or if Two Step is engaged.

Important note, AFR's during Two Step need to be from 11.5 to id say 10.8. Your building boost therefore you need more fuel.

Hope this helps some peeps out

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For our throttle position shouldn't it be set to 80? Based on the scangauge 2 our throttle valve only opens 80% when floored

 

welcome back COLBY!!! damn you been gone a while!

 

THanks this is awesome info I always wanted to have 2 step launch! thanks again colby.

 

with the emange its different.....ive seen 99 on the emanage....so you can also just use like 10 if you really want....just make sure the Vehicle speed pulse is at 0 so you wont 2 step getting on the freeway haha......whats up marcelo, ive been in hiding recently haha....hoping to finish tuning to 20psi soon

 

The way I understood was the IGN part was a means to spool the turbo more. The change in the number effected the amount of boost you built sitting at the line. I did not think it would change your A/F ratio during the two step. As I've been trying to figure out for the life of me how to get the A/F ratio right during the two step, so I always thought it was something in the tuning table that needed tweaked (you know where the two step lands on the cell in the A/F ratio table). So, if I messed with the IGN number some you saying I can effectively adjust the A/F ratio? I will have to give it another shot.

Also noticed that when you hit the two step, it would not hold. It would bounce...bounce...bounce....and then go Flat.......then back to bounce....bounce....bounce....and then go flat. And if I launched the car during the "going flat part", car just bogged down and sputter. So, is the IGN number going to fix this you think?

 

Also the Shift Up part actually is for us manual guys. The Ultimate has a flat foot shifting / power shifting feature. That's where the shift up section comes into play.

 

So, I went out tonight to do some more tinkering with the two step. And no matter what I set the IGN Adjustment to (-30 - 0), it did not change my A/F ratio on the WB. My WB will go "----" off the scale for reading. When I let out, the WB comes back in range, and it appears that it's coming back down from being LEAN off the scale, as the LED indicator sweeps from the LEAN side and the numbers drop down starting from 17 A/F ratio back down to normal idle of 14's.

I'm doing this presently in N/A form as I don't have boost right now, but the same thing happened when I was on boost too, so that is irrelevant. It would be perfect if I could figure out how to get it to richen up during the 2step.

I can take vid of this if anyone is interested.

 

Bump

 

Nice work Colby!

How is the car running?

 

hey travis i came to think about it, afrs while doing 2 step will always be lean on the wb.. wb is useless while 2 stepping. remember misfires will always read lean due to unburnt fresh air. just tweak it to desired rpm and fuel add or ignition cut

 

ace is right.....you can see your afr's right before though and it will give you a base idea.....and rhythm...i thought you already knew how to do the two step? oh wait....your the one that blew your motor two stepping right? and paul the car is running strong, i was able to half ars fix that lean spot i was calling you about for now....itll just lean out to around 15.3 now so thats livable and it no longer runs lean right there in boost. i still havent redone my ic pipes as i havent started work yet so the funds are running low.

 

Glad to hear. So what was the root of it?

 

tell paul you saw the baack of a xb2 lol turn your boost up we got to run again man lol that was fun i didnt let off then i looked back and i was like where did he go bre was like where did who go i was like i dont know then i was like oh god that 130 lol good times lets get that thing tuned

 

^^ haha watchout he wont let you get away with that next time

 

still not sure of the cluprit paul, i used the airflow adjustment map and corrected it though....and cory your time is coming man....if you remember correctly my ignition map wasnt selected son....we can try your 8 psi to my 16 soon....see how much boost i need to use to make up for eth hahaha....remeber guys....make sure you have a dip switch for your ignition map selected....if not enjoy some nice knock like i did....luckily i got it soon enough before damage occured.....ive just been to lazy to go out and street tune

 

cough cough were going to 13 in mine when you decide to come help a bro out lol what you doing tomorrow got my reg wana lend a hand and help each other tune?

oh and when the clutch gets here and the motor drops back in then i am going to just get rid of my waste gate lol what you thinking i should run boost wise on a 3076r built motor and cams?

when you think it will max out say 20-24?

 

lolz....im pretty sure you can run around 35psi on the 3076...keep the wastegate...get a BOOST CONTROLLER haha. dude it will solve your spinning issues too. just set it like mine....i never spin but build hella boost...ive got work tomorrow from 3-10 and friday from 4-10....we can have a tuning session this weekend so i can push mine up to 16, 18, ah hell maybe 20 haha

 

yeah lets do it saturday if you can i got to finish my fuel then yeah lol its going to be fun lol ima have to take out alot of fuel and i think it would be out of its efficiency range past 24

 

Yeah, I popped it playing with the two step. It was untuned and I didn't care for the motor that was in the car any more, so I experimented around and used it as a guinea pig instead of using the fresh motor I was planning on purchasing. I haven't had a two step on my car until recently, so no have been doing research on setting it up properly. I've always ran a E-blue since day one of boost.

So, what are you using to know what the A/F ratio is doing...datalog?

Anyone want to compare Datalogs with me? I datalogged two rpm's today (2500 and 3000). The interesting thing is when the two step holds, it actually dosen't hold where you set the RPMS to. It's actually above the rpm set.