What to expect for tune?

[panamarojo]

I have a 1g gsx. It has a 2g mas, 550 injectors, 190 walbro, stock turbo, data logger, boost gauge, soon to install MBC, crushed BOV, and s-afc. I don't have a wideband or a a-fpr.

What am I going to need to do to the safc to get it running perfect? What am I going to be looking for on the fuel trims to tell how rich or lean I am running?

How much boost should I run to keep it in a safe limit and what spark plugs should I use 6's or 7's? Any help is appreciated, thank you.

 

[JoshCorlin]

For a "proven member", you have a lot of newbie questions. Try the search button pal. All the "need to install" parts are what you need by the way. Plus, your gonna need that wideband and a AFPR to bring it all together.

 

[doubleclutch99]

Here's some good reading for you http://www.dsmtuners.com/forums/articles-tuning-ecu/105569-how-safc-works.html you don't need a wideband , but it'll definetly get the job done. a good logger and an afpr are a must.

 

[dsmdeliveryboy]

For a "proven member", you have a lot of newbie questions. Try the search button pal. All the "need to install" parts are what you need by the way. Plus, your gonna need that wideband and a AFPR to bring it all together.

He is running a 190, so no he doesn't need a FPR. And maybe you need to read the rules.

 

[MrBoxx]

For a "proven member", you have a lot of newbie questions. Try the search button pal. All the "need to install" parts are what you need by the way. Plus, your gonna need that wideband and a AFPR to bring it all together.

"Proven Member" merely denotes that he has met the minimum requirements for full membership on the site: 30 tech posts and a month as a member. It does not indicate knowledge of the DSM platform, tuning, parts, racing, etc.

Since this is a fairly direct question in the appropriate forum, please answer questions as best you can without going off-topic. Thank you.

 

[knochgoon24]

You need to get a wideband.

You can look at the fuel trims to get the closed loop stuff tuned, but it's not going to help you properly tune under boost where the fuel trims don't do anything.

 

[panamarojo]

Cool thanks for all the info and the site doubleclutch99. I understand I need a wide band but for right now for this setup, the 550's injectors and 2g mas has it running pretty much like stock so I shouldn't have to adjust the s-afc much at all right?

 

[JayRolla]

Agreed, a WBO2 is needed to see the AFR's at WOT. You can tune off of knock but its not safe. I learned the hard way when I burned up a valve running lean.

 

[redrockergsx]

Is a wideband really needed with this setup it's seems a little over the top for a mostly stock setup. I had a talon with the same setup on a evo3 b16g, only used a AFC and a A/F ratio gauge got it tune perfect. Just don't run lean lean is bad that how I did it. I would say once you start to go a little bigger the need for a wideband will be necessary. others will say differently also I would go with a walbro 255 and a A/F over just a wideband. If anything good luck on tuning it is the worst part about having these cars .

 

[JayRolla]

AF guage is nothing but a blinking light show. Its impossible to get a perfect tune without a wbo2 since you just guessing. IMO the first mods should me a good EMS and then a WBO2. You can make more power on a retune with a stock car than you could adding a new turbo, exhaust, intake without a tune.