My iron 5.7 build
#1
My iron 5.7 build
Started with a 07 classic 5.3 with full floating rods, Had block bored to 3.898 with flat top pistons, block deck and balanced rotating assembly, assembled with new stock 799 heads, LS6 head gaskets, Texas speed cam 212/218 .550 .550 on 114, Ls7 lifters stock push rods and rockers.
#2
installing new motor...
Runs very will with the stock 5.3 software but need a tune, it some times dies and you can tell is very held back. No check engine lights on and factory fuel trims running about +3. running 93 octane until I get a tune but haven't had any knock counts. Who would be a good mail order tuner, I live in longview and don't trust anyone here. I most likely will be going with Nelson Performance in San Antonio. I have factory 05 electric fans and harness to install also after tune.
Runs very will with the stock 5.3 software but need a tune, it some times dies and you can tell is very held back. No check engine lights on and factory fuel trims running about +3. running 93 octane until I get a tune but haven't had any knock counts. Who would be a good mail order tuner, I live in longview and don't trust anyone here. I most likely will be going with Nelson Performance in San Antonio. I have factory 05 electric fans and harness to install also after tune.
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#8
TECH Fanatic
iTrader: (6)
You may find, once you get to tuning it, that those injectors are maxed out with the increased cubes and upgraded cam just FYI. May want to get a set of 8.1 truck or marine injectors and have them on hand in case you need them (or throw them on before the tune to be safe). Also, at least a 255LPH pump would be good too......
#10
All great advise, I'll be checking on the 8.1 base injectors, I used neslon when I lived in Austin, but being 6 hours away now I don't see me driving to get a live tune. I think my best bet for me is save a get my own Hp suite software so I can data log and email to others and then start learning to tune myself.