Ford has a problem on their hands and they are trying to cover their butts. The 5.0's are popping #8 pistons at an alarming rate. Ford is trying to blame it on mods but the fact is, bone stock ones are doing also or so I've heard. Why was this never a problem with the 4.6's? Their are 10's of thousands more of those with bolt on's and tunes and no problems. I think #8 runs too lean and the knock sensors are not sensitive enough. Throw in this 100 degree heat and crap gasoline out there, it's trouble. The only missfire these things are having a problem with is #8 cylinder and they are melting. I've seen it myself. The 4.6 never did that with the same bolt ons and same tuner. Just saying. Why is there now a TSB for missfire to reprogram the pcm? There is a problem here IMO.
Ford has a problem on their hands and they are trying to cover their butts. The 5.0's are popping #8 pistons at an alarming rate. Ford is trying to blame it on mods but the fact is, bone stock ones are doing also or so I've heard. Why was this never a problem with the 4.6's? Their are 10's of thousands more of those with bolt on's and tunes and no problems. I think #8 runs too lean and the knock sensors are not sensitive enough. Throw in this 100 degree heat and crap gasoline out there, it's trouble. The only missfire these things are having a problem with is #8 cylinder and they are melting. I've seen it myself. The 4.6 never did that with the same bolt ons and same tuner. Just saying. Why is there now a TSB for missfire to reprogram the pcm? There is a problem here IMO.
how is the 5.0 a glass motor when you can safely add 100+ hp and not have to worry about it? Ford will even warranty it if you buy the pars they engineered.
These are high compression motors and need very good gas when you start using after market tunes.Racers do not buy $7.00 a gallon race gas just for fun while at the race track.
the 11-1 compression these motors have, worrying about economy for the epa and spinning 7k rpms leaves little room for error on pump gas. The proof is in the failures.
You get a cylinder a little lean and it starts to detonate and continues to detonate, it's done. The pistons look like someone took a blow torch to them.
Are you sure you are getting 93 octane gas at you local gas station for your 93 octane tune?Why not just add a few gallon of race gas to your tank to just be on the safe side while at the track.Works great for me and my Jon Lund tune because I do not street race.Wait a 93 tune needs Race gas, and I WAS Considering a PD Blower because of the fact that they all Claim 600CHP on 93....Sorry, but I don't have an Extra 10k lying around for a Forged Motor......
ls3...
That makes you the winner on the mustang 5.0 forum with 700 hp on pump gas.My current LS powered street car puts mid 700's to the wheels on pump gas.
:rockon:
Unfortunately every car I buy I modify so this will probably be the last new car I buy for myself. Perhaps I will head over to Carmax and see if I can find an out of warranty c6 to trade for.
Come on guys these are great cars for under $28,000.00.If you put in a after market tune just add a can of unleaded Torco or a few Gallons of race just to be safe while you are at the race track.I only have 91 octane in Oregon!
That makes you the winner on the mustang 5.0 forum with 700 hp on pump gas.