wasn't disagreeing with u... lol. "BS flag on the horizon" was just a saying

 

I was told that for late model cars, it's generally between 85% and 105%. 85% being 2-valve, 90% being hemispherical 4-valve, and 105% being fully ported/polished competition head.

But then again, if I do the formula and give him a 105% VE, he's only flowing an extra 70 CFM. And that's saying that he has one of the most efficient heads ever made.

 

Oh I know what you meant, I just meant that there is no need to raise the flag. We're past that point.

 

are u trying to say that luiggi is a bad tuner? what are u running? the FIC right? why? FIC is pointless, you can only backoff timing, cant remove speed cut, cant raise the redline, are u able to setup a 2 step with FIC? idk.. i just know i remember him saying he hates doing the FIC cuz he feels its pointless maybe thats why he hasnt called you lol, hes here to get the performance out of you vehicle, if he cant use all the options to do so than i see where hes coming from. although your car should have been finished, he said u brought it to him really F'd up, and im guessing it was velocity factor or something. instead of bashing him on the site why dont u call him, and YOU grow up.

 

Everyone else that reads this is going to say that's a cop-out.

A tuner that says he doesn't tune a system because it's not worth it is saying that because he really doesn't know that particular system.

I don't doubt Luiggi's abilities on Cobb or Greddy, but from personal experience, not F/IC. Why would a tuner even attempt a tune without an OBD-II scanner? Btw, don't you realize there are more Greddy maps floating around than F/IC? That makes a tuner's life easier.. he can copy one, make small changes, and charge you for a full tune.

I chose the F/IC because it's what I wanted.. and I'm glad I chose it because I'm able to tune it and learn more about tuning in general.

 

I'm curious about your tune Rob. When I was street tuning, I tried the all 0 O2 map and tuned primarily off the fuel map and the car didn't like that too much (mostly idle/vacuum was freaky). It would be perfect for a while, then out of nowhere I'd get an insanely lean idle, boost would sometimes go too rich, etc... After I got tuned by Toan @ PTuning, I realized that the O2 map was the way to go. It's basically just set a value and the F/IC will automatically aim for that AFR.

I don't really feel like getting into a big thing because I want to go to bed, I'm just saying that it didn't work for me without an O2 map, and with the O2 map, my car is running flawlessly.

 

^^ I noticed that too.. that's what didn't make sense to me and that's what got me started playing around with injector response time.

At first, I left things default - the 486us in the setup. After doing the correct calculations for fuel trim, and leaving the O2 map zero, the car stalled every time.

As I got closer to the true value of my particular injector's response time, the car idled better and better with O2.

See the logic is you shouldn't have to have any O2 skewing under normal driving (no boost). Let the stock ECU keep the AFR near 14.7. This is how my map is right now. My injector response time is 1100us and my O2's are 0 under vac. Car idles great and drives great. There are still cells I need to adj but it's hard on the street without a load-bearing dyno.

 

I would like to add that I do have an O2 map.. it's just 0's under vac.. but I have it targeted for specific AFR during boost.

 

I know how much it totally sucks ___ to start all over, but I say just go ahead and use the O2 map lol. It makes things SOOOO much easier. No joke, my vacuum is almost all 3.01's and my fuel trim is all -25, and I cruise at ~14.5, I idle at about 15 (I changed the idle O2 to 3.05 to lean it out a little more).

 

Ahh, gotcha. The boost was impossible to street tune. You can't get any kind of accurate reading while driving around lol.

 

so what your saying carbon is just set like lets say 11.5 afr on boost and thats it? or you have to minus timing and still mess with the fuel trims?

 

Seriously! That's why I datalog everything. I datalog my fuel trims with my OBDII program and I datalog my AEM F/IC.

This really helps in tuning. I still want to mess with it more and more to perfect it.

 

The values in the O2 map are specifically there to TARGET an air fuel ratio. I don't have the chart, it's on the AEM forums somewhere...but let's say a 1.01 O2 Value = a 12AFR. Now the FIC will try to target that AFR automatically. The fuel map is still needed because of the change in injectors and for fine tuning and trying to maintain a 0% Long Term Fuel Trim. That's where the OBD2 scanner is an absolute necessity, without it, you cannot observe the LTFT.

Timing is a completely different story. Timing is where the power is really made, not in the fuel trim. You'll only see about a 5HP difference between an 11AFR and a 12.5AFR. Don't pull enough timing and you won't make much power, pull too much timing and kaboom.

There isn't all that much power to be made from tuning. Tuning is more about making the car run reliably.

 

i think iv got the chart on the fic setup thread

 

iv seen more of a "power change" when tuning the ign map...

 

Ill send you over my map! but you need aem pro!

Email?

 

btw due to my tires spinning on dyno i also do 4th gear pass's!

 

btw he really does have that much power i can vouche for him and plenty more people from the island here can vouche, he does run 14 psi on the street and his motor is not stock his motor is fully built. his turbo in fact is a 60-1 not a 60 trim w a full 3" turbo back exhaust

if it helps he knows what he is doing, check out the thread on here for 2nd gen xb he built a custom kit on it and making great numbers ( https://www.scionlife.com/forums/viewtopic.php?t=257497 )

 

That joey guy what part of Florida is he in. And what setup does he have. Built head also?

 

watching this bafoonery