Tuning with the evo3 big 16g

[DSM-Talon-John]

Ok I recently purchased fic 650 injecotors and and a evo 3 big 16g. I also have the walbro 190. My question is, Is it a absolute must to buy a afc to control the fuel? With the 650's and 190 could I just use my logger to see how lean or rich im running and adjust it from there?

 

[Auto RS T]

When upgrading injectors, you must run some other type of tuning device. SAFC at the least.

You can use your logger to look at whats going on, but how do you plan on adjusting the fuel without an AFC?

Here are some tuning devices I can think of. You can search on them to see which one would work out well for your goals. Some of them can be used in conjunction with each other also.

AFC
AFC I
AFC II
GM MAFT
Keydiver Chip
DSM Link
Mega Squirt
AMS EMS

 

[TrboANTsi]

Like he said AFC at the least. I recently installed the same setup, and the thing drove like a dog until we logged and tuned with the AFC. Before and after tune was a big difference in power. The initial drive was like, ohh god why did I waste all this money, after 4 tunes..I was scared at the power. Buy it used you can find AFc's for like 150 if you search

 

[DSM-Talon-John]

Ok, I thought I would have to. A couple more questions.. Where I was getting this Idea is cause when I got my logger and with the t-25 you could just look how far you could turn it up on stock fuel I turned mine up to 15-16. So why cant that be done with the added fuel, just turn the boost up till you get it lean like with the stock fuel? Also I wont be putting the injectors on before the turbo becasue of the fuel contro thing so what psi can i run with the stock injectors and the walbro 190?

 

[Auto RS T]

You can install the 190 and use the logger to tell you how high you can turn up the boost.

I wouldn't think you could turn the boost up much farther with the stock injectors. Make sure you know what trouble looks like on the logger.

 

[DSM-Talon-John]

Can a safc1 control 650's? Or would I need a safc2?

 

[Auto RS T]

Here is a link to a good read.

http://www.dsmtuners.com/forums/showthread.php?t=237759

There is no advantage over the AFC I in regards to injectors size. The AFC II has more NE POINTS or "rpm related adjustment points" than the AFC I, and a few other extras. The knock sensor however, does not work on our cars.

Here is a little more related to the AFC, it should help you understand how it works.

http://www.dsmtuners.com/forums/showthread.php?t=105569

 

[TrboANTsi]

Im on 660s with an AFC1 and a logger

 

[DSM-Talon-John]

What do you have your psi set at? Is there a big difference in the evo316g and the big evo316g? Was it relatively easy to tune with injectors that size? Is it easier to tune with a a/f gauge?

 

[elfroggo]

I don't believe there is such thing as an big evo316g; there is a big 16g and an evo3 16g.

A/F gauge isn't good for much except as blinky blinky because it still gets its readings off the narrowband o2 sensor. Wideband is where it's at.

 

[DSM-Talon-John]

theres no evo3 big 16g? are you sure

 

[Merkles]

There is:

1- Evo 3 16G
2- Big 16G
3- Small 16G

There isn't a Big Evo 3 16G




Edit* As far as tuning what I plan on doing is getting a keydriver chip from dsmchips.com. After that tuning that is needed with a SAFC II is minimal, but is still required.

 

[DSM-Talon-John]

I think you guys are wrong about this. http://linux.forcedperformance.net/...P&Product_Code=NTDSMEVOB16G&Category_Code=DSM.

 

[Merkles]

Well I stand corrected and thank you for educating me but I had never heard or ever seen one. I am wondering if that is the same thing as the 16G GT turbo that people have been having hit or miss success with.

 

[DSM-Talon-John]

IM not sure? I was thinking that maybe it comes ported or something and they call it big instead of its regualr name.

 

[DSM-Talon-John]

Im gonna start a new thread and find out

 

[elfroggo]

No, the 16 GT isn't a mitsubishi turbo, there is a lot of information on this turbo already.
Opinions are very mixed on this one.

http://www.dsmtuners.com/forums/showthread.php?t=218698
http://www.dsmtuners.com/forums/showthread.php?t=164712
http://www.dsmtuners.com/forums/showthread.php?p=1833269