Need tune program for LT4 383 w/comp 305 cam
Need tune program for LT4 383 w/comp 305 cam
Car is a obdI 383, LT4 top & bottom end, comp 305 cam, crane gold race 1.6 rr's, as&m headers, 30# SVO injectors, ~10.8:1 compression, M6 car. I've got a program for a comp 306 383 in right now but the car is running very rich. Need suggestions/files please I can only upload, no "tuning" capabilities.
Cody
Cody
What are your BLM's at after 20 mins driving... if they haven't bottomed out (108 I believe), you're okay... if they've bottomed out, there's a couple ways of leaning out. Try lowering your VE's entries, works for some, doesn't work for others (me)...
If that doesn't work, you can massage your MAF table, OR you can change your injector size, you've hopefully have it set for 30 pounders... set it for about 33's or so. That'll lean it out, but you'll have to compensate your Power Enrichment tables to make up the slack at WOT. [Experiment and Scan!! I haven't actually done this, I know people who have though and they're happy with it.]
As long as your BLM's are above 108 (or is it 106.. can't remember) then you're okay, the computer is using the O2's to lean it out, just takes a bit of driving before it figures things out. I have 110-114 BLM's in pretty much every cell and I pass CO Emmisions just fine [richness indicator].
If that doesn't work, you can massage your MAF table, OR you can change your injector size, you've hopefully have it set for 30 pounders... set it for about 33's or so. That'll lean it out, but you'll have to compensate your Power Enrichment tables to make up the slack at WOT. [Experiment and Scan!! I haven't actually done this, I know people who have though and they're happy with it.]
As long as your BLM's are above 108 (or is it 106.. can't remember) then you're okay, the computer is using the O2's to lean it out, just takes a bit of driving before it figures things out. I have 110-114 BLM's in pretty much every cell and I pass CO Emmisions just fine [richness indicator].
Well I tried a different flash program today and it really helped smooth things out. After driving 20 min I hooked up datamaster and logged about 20 more mins of driving. Everything seems to be in order. My blms range from 110-126 durring "normal driving" and they hold steady at 128 when I'm at 50% throttle or more. No spark retard at all!!
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