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LM7-->LS2 and HPT Pro Beginner help needed please!
Finishing up the swap and about to start tuning. Need some direction. Totally a tuning virgin here.
2005 LS2 (Vette if that matters)
TBSS-style(truck) (90mm?) intake
DBC 90mm TB
LM7 return-style fuel rail adapted
LS3-style(I think; short, fat, new, blue O-ring, Delphi) late truck injectors adapted
Stock LM7 MAF for now
No EGR or EVAP
LM7/LS1 style harness
Cam sensor extended
LS1-style knock sensors relocated/extended
1-5/8 shorties
2.25" dual exhaust, O2 sensors, no cats.
What would be a good tune to start with? LM7? TBSS? Corvette? GTO? Can I take a BIN file from LS2 and load into my LS1 PCM anyway? Is it reasonable to think I could initially get it running well enough to limp 5 miles to a muffler shop to get the wide band bung welded in?
Thank you in advance for your time. I'm not a complete dummy but haven't done this before.
It would probably be best if you get the part number from the injectors and make sure of what they are. Then since you have HP someone that does email tunes can send you an OS that will work with the correct injector tables pasted in. Or if you are knowledgeably capable, you can look in the tune repository and cut and paste the injector info. If your camshaft is aftermarket then the game changes.
Looks like they are 09+ truck flex fuel injectors. 36lb/hr. @ 58PSI. Stock LS2 cam. 2000 Silverado PCM. Can I grab a LS2 BIN file and flash it in there or do I need to start with say a 2000 6.0 file and get the injector data out of a 09+ truck? Just need to know where to start to be compatible with my current PCM. The stock LS2 cam will be a bit bigger than the other/older truck cams.
You need a custom tune, your not going to be able to just copy and paste another tune or even table from another tune into your pcm. You have parts from several vehicles all of which have different computers that are not compatible.
How much for something to get me started? It's a CJ7 with a stick, stock gears til spring, and 33's. Probably presents a load to the engine like a heavier vehicle due to gearing/tires but the vehicle weighs about 3100lbs.
10-04-2014, 01:10 AM
LM7-->LS2 and HPT Pro Beginner help needed please! 
