7m Stinger Thread

[AndyMac]

looks good when I load it up in version 4 software.

my ony question... I noticed that you dont have a value in the injector trim %

your running 550cc injectors yeah?

I just heard that the easiest way to tun with larger injectors is to trim a % of fuel based on the size of the injector?

Is this correct?

 

[disturbed1]

from my understanding the trim would be useful for if i upgrade to 720s from 550s, that way can use the trim.

dont think it would be ny usefully trying to trim a factory map cause u have bigger injectors when u got 100 other aftermarket mods like bigger turbo etc

 

[AndyMac]

maybe my understanding was wrong

I ask because I plan on loading up your tune and check it out.

I have 750cc injectors and I was wondering what I would have to trim in the % field??

 

[disturbed1]

be careful about what u plan to do mate.

all tunes are diff.

 

[AndyMac]

be careful about what u plan to do mate.

all tunes are diff.

totally understand.

the thing is that at the moment I dont have a tune. The car has just finished its run in and is yet to go to the dyno.

its so fuckign rough at the moment and will be going out to the dyno very soon.

I more than anything wanted to use yours to fix the cold start.

The car is being driven around off boost when driven (maybe once a week when on the road)

 

[hottscennessey]

Injector trim does not remain set at + or - any value. It's at zero, and you can add % of fuel to the overall map. You're thinking more along the lines of a fuel multipler.

 

[AndyMac]

hmm maybe thats what I am after...

I was reading the other stinger thread and they were saying there is a field you change to trim fuel for larger injectors... I remember it was a % and thats about it.

I might have to go and re-read.

 

[blackkarma]

the injector trim setting is used to up or lower your whole map by a certain percentage if you were to upgrade injectors, once entered it always goes back to zero just makes it alittle easier to add or take away fuel across the whole map instead of doing it cell by cell. now you do have to change your injector time scale based on the injector size but all that really does for u is keep the numbers below 255 or whatever your scale limit is.


wow should have read up looks like all this has already been said

 

[TurboStreetCar]

Disturbed figured out the difference between loading it in version 4 and the 8860 software. the version 4 software cant plot enough load points so it cuts it off at -10psi. thats why they look different. Otherwise besides the added features and larger maps i think the 8860 and version 4 software are the same.

Is the 8860 (6860) worth the extra cost? i like the extra in/outputs but i dont know if i can justify the cost just for that.

 

[disturbed1]

i dont think they mke the 6680s no more.

when your spending 1000 bux, what more is another 400 to ensure u have the best of the best.

 

[TurboStreetCar]

True i guess itll come down to it when i actually go to buy in a couple weeks. how do you have your idle control set up? stock IAC?

 

[disturbed1]

i dont run the iscv

 

[TurboStreetCar]

I changed your save file around to suit the stinger 4 software. the issue was you have more load points then the stinger 4 can use so it was cutting off the bottom of the chart.

8860 screen shot

stinger 4 screen shot

you can see the stinger 4 doesn't have the same resolution while in boost but the load points i removed were within 1-2 psi of each other and the points are still interpolated smoothly automatically by the software so shouldn't be much of a difference at all. i didn't remove any of the vacuum load points because thats where the driveability is tuned and that resolution could make a difference.

And if you want to use this file in stinger 4 heres the file everything is the same just some of the on boost load points that were very close together are removed everything else including options are the same as disturbed's original file. To use file download and change file extension from TXT to EM4.

 

[AndyMac]

the injector trim setting is used to up or lower your whole map by a certain percentage if you were to upgrade injectors, once entered it always goes back to zero just makes it alittle easier to add or take away fuel across the whole map instead of doing it cell by cell. now you do have to change your injector time scale based on the injector size but all that really does for u is keep the numbers below 255 or whatever your scale limit is.


wow should have read up looks like all this has already been said

hey I had the right idea!.... kinda

I wont be doing anything with mine without double checking first. Thats FOR SURE.

 

[blackkarma]

I hope u guys are not trying to use disturb1's or anyone elses map on your own setups, this is dangerous to do u could very well end up damaging your motor. even if u have the same setup each 7m will run differently, specially the fuel map there are alot of things that u have to consider to even be some what close such as fuel, pressure, injectors, throttle body, A/F, his BTDC timing, his igntion timing, injector scale setting, his pumps, his fuel lines, his injector rail, cams, plugs, ignition system and plenty more....all this becomes a big factor when you start boosting. his map should reeally only be used as a reference to assist you in making your own map so you.

 

[TurboStreetCar]

i will be using it as a basemap, something i can get the car started and begin carefully tuning for my own setup. i would never run a map/tunefile i didnt tune or have tuned for my car without carefully monitoring a wideband and EGT and making nessisary adjustments a little at a time.

ill be taking it slow untill all is well.

For cold start idle up is everyone using the horn valve im reading about? do you guys run that with PWM or just on and off when needed?

Idle speed controlled by throttle body stop im assuming? is anyone running the stock isc?

 

[blackkarma]

im running a q45 i manually control the idle on the throttle body

 

[AndyMac]

i will be using it as a basemap, something i can get the car started and begin carefully tuning for my own setup. i would never run a map/tunefile i didnt tune or have tuned for my car without carefully monitoring a wideband and EGT and making nessisary adjustments a little at a time.

ill be taking it slow untill all is well.

For cold start idle up is everyone using the horn valve im reading about? do you guys run that with PWM or just on and off when needed?

Idle speed controlled by throttle body stop im assuming? is anyone running the stock isc?

pretty sure I am running stock isc. do you know how to go about adjusting it?

i wouldnt mind raising my idle about 200 rpm.

 

[TurboStreetCar]

im actually curious as to its controll and hook up aswell. i have little experiance with using this other then playing around with the software. i would imagine its under one of the outputs but i couldnt be sure.

BTW Andy your car is beautiful.

 

[Mk3Les]

Does anyone know if you can use the V4 software with a V3 stinger?