Can anyone help me with starting settings for my SAFC

[16vdohcturboawd]

Can anyone help me with starting settings for my SAFC. Ive had it in for a couple weeks now and I found a huge boost leak at my injectors so this weekend im going to install my 2g mas and EVO ix injectors. The 2g mas means about 20% more air coming in and the injectors are about 30% bigger than the stockers so should I set it to -10% across the board and then tune from there?

 

[JayRolla]

Do you have a wbo2? If not I would invest in one. It will make things a lot easier. I would start with not pulling any fuel. First get your fuel trims inline with your logger tuning the lo throttle settings. Once that is done set boost too a safe level (I would say 18psi on a stock 14b and stock 1g timing) and start too pull a little fuel untill you knock. Then add the fuel back.

Most likely with the added boost and fuel pressure you will be running rich at WOT. But its hard to know with the 2g maf and no wbo2. Once you have a good no detonation tune you can add boost. If you see detonation add some fuel. If that doesnt help, set the base timing back to around 2*. This will give you less timing so you can run more boost.

 

[16vdohcturboawd]

Thanks for the insight, yea thats what I plan to run for now 18psi on the stock 14b, sorry for the newb question but how I get the fuel trims inline with the logger? Ill put the WB02 up on the list with the FMIC.

 

[JayRolla]

http://www.dsmtuners.com/forums/articles-tuning-ecu/58403-definitive-piggyback-tuning-guide.html

 

[16vdohcturboawd]

Thanks for the help man, maybe ill just wait till I get a WB 02 before I swap the 2G MAS in and the 560s. I really dont wanna F up my engine. I can just put the new seals on the 450s for now I suppose.

Btw,

Right now with my huge boost leak my fuel trims are

low 118.7%
medium 83.5%
high 81.2%
02 100.0%

Now there supposed to all be at or close to 100% right? Are they screwed up because of my boost leak?

 

[JayRolla]

Yea it may be the boost leak. Fix that and see where they are at.

 

[gofer]

RRE's Super AFC Setting and Adjustment Tips

Apexi Super AFC For The Eclipse/EVO

these are the pages that i used for an initial tune after i installed my SAFC, 660's, & 255 fp and it was a good tune to get it driveable and not blast fireballs out the exhaust while its at idle.

 

[whiteflash]

On my 2g with evo 560's, my high settings ranged from 15-18. It ran rich but hopefully it gives you an estimate on what your settings need to be.

 

[JayRolla]

Your high settings where positive 15-18?? Thats crazy. You should have been pulling fuel out not adding unless I see this wrong.

 

[RedEyeBanDiT]

Well if you have a bigger turbo, you want to add fuel at the higher rpms where your flowing more air

 

[whiteflash]

Your high settings where positive 15-18?? Thats crazy. You should have been pulling fuel out not adding unless I see this wrong.

Haha i meant to say -15 to -18, mybad..old thread i know