fuel modifier setting
12-20-2005, 07:21 AM
#1
0.0 BAR
Thread Starter
Join Date: Aug 2005
Posts: 35
fuel modifier setting
this is my setup:
d16y8
chipped p28 w/uberdata conversion harness
tdo4l
450cc inj.
i've tried different maps such as dj fob's, my own and i still end up fowling the plugs. dj fob's did work alot better, but i'm not sure what the settings are for the fuel modifiers. i've follow the basemap instructions on the uberdata forum, but got a little lost on the fuel modifier part. can anyone help me with that?
d16y8
chipped p28 w/uberdata conversion harness
tdo4l
450cc inj.
i've tried different maps such as dj fob's, my own and i still end up fowling the plugs. dj fob's did work alot better, but i'm not sure what the settings are for the fuel modifiers. i've follow the basemap instructions on the uberdata forum, but got a little lost on the fuel modifier part. can anyone help me with that?
12-20-2005, 01:37 PM
#2
Guest
Posts: n/a
Re: fuel modifier setting
You don't have to change the fuel modifier itself. All you have to do is enter your new injector size (450) and it should already have the stock size in the old injector size area (240), then apply the changes. This will make your fuel modifier roughly 60.
12-20-2005, 05:05 PM
#4
0.0 BAR
Thread Starter
Join Date: Aug 2005
Posts: 35
Re: fuel modifier setting
i've tried it with 60 tps, 60 cold, 100 main, 100 o2. it starts up fine, but will still stall out and eventually the plug will foul out. i've tried 100 across the board same effect. i've also tried 53 which was the suggested number across the board and it still does the same thing. is it just my base map or could something else cause the problem?
12-20-2005, 06:37 PM
#5
Guest
Posts: n/a
Re: fuel modifier setting
You're right, 53 not 60 like I said.
Not sure what else it could be, try making a brand new basemap and only changing the fuel modifier to 53 to compensate for your 450s. If it is still running too rich then maybe you have bigger injectors than you think :P
Not sure what else it could be, try making a brand new basemap and only changing the fuel modifier to 53 to compensate for your 450s. If it is still running too rich then maybe you have bigger injectors than you think :P
12-21-2005, 04:02 AM
#8
3.0 BAR
Join Date: Dec 2002
Posts: 3,830
Re: fuel modifier setting
If your fouling plugs in short order with just normal driving select the first 5 vacuum columns and make a big fatty move. Like -15%.
Also, you can slam in some fresh plugs and just let it idle for like 20mins, and pull them. If they are S. African, take like 20% outa the 2nd and 3rd columns. Assuming you havnt molested the fuel maps, and they still retain their stock 2d curves, this will bring things inline pretty good. (idle and cruise areas)
I take it you dont have access to a WB?
This is just the quick and dirty seat of the pants shot-gun Etuneing, hahaha
Also, you can slam in some fresh plugs and just let it idle for like 20mins, and pull them. If they are S. African, take like 20% outa the 2nd and 3rd columns. Assuming you havnt molested the fuel maps, and they still retain their stock 2d curves, this will bring things inline pretty good. (idle and cruise areas)
I take it you dont have access to a WB?
This is just the quick and dirty seat of the pants shot-gun Etuneing, hahaha
12-21-2005, 07:18 AM
#9
0.0 BAR
Thread Starter
Join Date: Aug 2005
Posts: 35
Re: fuel modifier setting
yeah i don't have a wideband yet. still in the process of trying to get the car running. forgot to mention it only lasts about 20 secs before it stalls out and foul the plugs. if the injectors doesn't fix the problem than i will try your sugestion. thanks
12-21-2005, 03:28 PM
#10
0.0 BAR
Thread Starter
Join Date: Aug 2005
Posts: 35
Re: fuel modifier setting
well i redid the injectors and now my regulator squirts out gas when i try to start it. i'm not sure why. i've checked it out and took it off the fuel rail and noticed that there is an o-ring inside the rail and not the regulator. does that sound right? anyone with any ideas?
