Originally Posted by raasfaas (Post 9427404)

Ok I need a little help diagnosing something here...I'm trying to help a friend of mine scale a set of PTE1200's on his IX but am having a little trouble. I started out with the scaling and latencies from this thread which seemed to be the most widely used out there for these injectors:
https://www.evolutionm.net/forums/8794310-post98.html
But the afr just swings full lean on his AEM WB.
I brought the global down a good deal to see if I could even get it to register on the gauge but it just keeps going full lean. The thing is though, when I log it in evoscan the STFT hover around -2% to +4% and the ltft low on the first cycle settled on -4.8% which means I'm kinda in the ballpark and should at least be idling at stoich.
Does this possibly look like a bad sensor?

Originally Posted by kiwiracer (Post 9469437)

Ok so if you going to e85 its approx 70 % of your injector size.... if you have a 2.3 stroker do you then possibly go another 15% due to displacement??

Originally Posted by NOMIEZVR4 (Post 9653974)

Question I have been following this thread for quite some time and been using this to help dial-in the injectors.

FIC 1450 93-octane

I'm stuck at the low trims so I tried :

the latencies got worse so then I did:



So here is some before readings :
MID TRIMS ARE perfect for me around -3 to -4. My low trims are what I am having a hard time with.

Scaling=1329
2.664
2.088
1.656
1.344
1.152
.960
.792

After 15mins my low trims are at 12.6512

Then I increased my latency value :
2.736
2.160
1.704
1.368
1.129
.936
.816

After fifteen minutes of driving my mid trims were 11.8668.



Any ideas on what I should try next?
Changing the scaling??


Mods:
stock evo 8 head/block
stock I/C piping
stock intake pipe
3" exhaust
GSC stg II cams
walbro 255
stock turbo
MBC
FIC1450

Originally Posted by BigT (Post 9702278)

I don't get too crazy with the low trim. I got my cruise trim to be zero, actually -0.59, and my idle trim ended up being +7. I left it as is. I cruise a lot more than sitting idle.

Originally Posted by wizzo 8 (Post 9711731)

Here is a question about resetting values. I have an Evo 8 and lets say my ltft is 10. I add some to the latencies to bring it down. Do I have to disconnect the battery after that? I know if I do it will reset it to 0 right away. I have noticed if I dont disconnect the battery the 10 will come down to what it is eventually. Im assuming it would be quicker to disconnect the battery than to wait. Is my thinking correct or am I going about this all wrong? I just dont like disconnecting battery because then I have to recalibrate my wideband again:crap: