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Discussion Starter · #1 ·
i did the lex/550 mod, my fuel pressure is around 35psi, timing at 12 degrees. my egt's are around 950 cruising, this is comming out of the number 1 cylender, isn't this way to low? boosting at 7 psi it goes up to about 1100. i also get smoke when i boost, so obviously im running rich. but here is whats confusing me. my vf readings are around 3.5-5.0, what the hell is going on? its saying to add more fuel, but im already running so rich. why is it saying to do this???
 
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is your vf reading off of your stock o2 sensor? If so I wouldnt trust that reading. after my lex/550's my egts where around 1200 wot and that is with sub 10:1 afs....you must be damn rich.
 

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On the edge of adhesion..
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Turn the boost up!! Balance out the amount fuel your dumping with a little more air.

Khris
 

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Silver88Turbo said:
is your vf reading off of your stock o2 sensor? If so I wouldnt trust that reading. after my lex/550's my egts where around 1200 wot and that is with sub 10:1 afs....you must be damn rich.
heh. Vf = ECU correction to base fuel map. ;)

i'm guessing those are F readings.....how did you set the FP? w/the vac line off? i'm guessing you set it w/the vac line on.....
 

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Discussion Starter · #9 ·
i set it at 32 without vacuum and it drops down to about 23-24 with the line on, its still running super rich though. i guess its time to take it to the dyno and get my afc installed.
 

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Discussion Starter · #11 ·
not yet, i just did some really crude tunning using the egt's/lex screw and fuel pressure so i could drive it to the exhuast shop and to the dyno.
 

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supraian said:
not yet, i just did some really crude tunning using the egt's/lex screw and fuel pressure so i could drive it to the exhuast shop and to the dyno.
Sorry to go offtopic here, but what are you using to adjust the Lex? I didn't think those old Sonic AFM screws were still available.
 
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