Hey guys, I'm finally wrapping up my build (LS swapped 1985 Porsche 944) and now it's time to get my car to the exhaust fabricator.
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I'm not hell bent on this idea and will most likely end up towing it there but it made me wonder...
Fresh LS1 build that came out of a 99 WS6. Mods below:
-New 85mm MAF
-LS6 intake and TB
-42lb injectors
-D585 coils (truck coils)
-243 heads
-TSP 224R .600/.600 114lsa
-Custom 1 5/8" headers
Things I've done to the tune:
-Deleted/disabled all the typical stuff (VATS, EGR, AIR, TQ MGMT, etc.)
-Updated injector data
-Updated MAF data
-Updated spark data for new coils
-Upped idle setpoints
I've started it up to check for leaks and bleed various systems and it purrs. Starts right up and idles extremely well. Now on the the bad news, I'm without o2 sensors as well as my wideband due to a lack of exhaust at the moment.
With all that being said, if I disabled my fuel trims and forced an Open Loop/MAF only tune, would the MAF data that I updated be reliable enough to limp it to the fabricator and not blow up? When you guys tune your MAF's, are they usually off by much?
Mostly thinking out loud here but I'd be interested to hear what you guys think!