Help: I need some efi tuning help!

mytmousemalibu

mytmousemalibu

Cut your ride, sissy!
Apr 12, 2008
2,230
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Kansas
Ok guys heres my situation... I've had EFI for a while now but all i've done is the 20/20 tune. I'd like to have a touch more power and maybe some econ too? I get 18-19ish now. Well i went an played a bit finally tonight an all i did was change the TPS based fuel quantity a bit, (on top of 20/20 tune), if feels pretty good now, i put in some more fuel in middle rpm range but over all it's a lil too smoky, figure i just lost some MPG too! I'd say SOTP feel i have a 100hp tune? I like that, its all i need for now.

Heres where i need help... ( IM A NOOB)
* I'd like to back the smoke off some and try to achive more mpg (keep power
* I don't wanna kill the injectors with psi
* It has 50% injectors, all the talk of a bigger shot of fuel and less timing how does this come into play?
* I'm rather unsure of what to change and how much and what tables?

What do you guys recommend?:D
 
Jared Duramax

Jared Duramax

<---- $$$ Whore!!
Feb 13, 2008
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Matthews NC
try ading some timing you would be surprized at what a few degrees will do..... more power, better economy, and less smoke. give it a try.
 
mytmousemalibu

mytmousemalibu

Cut your ride, sissy!
Apr 12, 2008
2,230
0
0
Kansas
tinman22 said:
hey mouse any luck with the ideas I gave you in chat?
Click to expand...

Hey buddie! Sorry! I just got back today from a weekend 4th-o-July trip to Table Rock, MO and im dead tired! I even brought my laptop with me intending to make a new tune up if i got some free time, but no luck there! So I might do it tonight or twomorrow after work! Ill be sure to letcha all know how it goes! :D
 
sweetdiesel

sweetdiesel

That's better
Aug 6, 2006
10,390
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Thailand
mytmousemalibu said:
Ok guys heres my situation... I've had EFI for a while now but all i've done is the 20/20 tune. I'd like to have a touch more power and maybe some econ too? I get 18-19ish now. Well i went an played a bit finally tonight an all i did was change the TPS based fuel quantity a bit, (on top of 20/20 tune), if feels pretty good now, i put in some more fuel in middle rpm range but over all it's a lil too smoky, figure i just lost some MPG too! I'd say SOTP feel i have a 100hp tune? I like that, its all i need for now.

Heres where i need help... ( IM A NOOB)
* I'd like to back the smoke off some and try to achive more mpg (keep power
* I don't wanna kill the injectors with psi
* It has 50% injectors, all the talk of a bigger shot of fuel and less timing how does this come into play?
* I'm rather unsure of what to change and how much and what tables?

What do you guys recommend?:D
Click to expand...

with the injectors being bigger you dont need as high of a PW to get the fuel in
If you want to build a tune start with WOT its the easiest to build,Then work on the lower areas by small adjustments

timing i would adjust in 0.5 degree increments untill you get it right
I myself like low timing at the low fuel areas around 7-9 in mid and 28-30 at the wot high rpm ranges....IMO it takes the longest to get perfected
 
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