xtreme747

So the truck is back up and running . Everything seems to be running fine . I have decided to run the safe Edelbrock tune and not bother with a custom tune for now . It still works pretty good and I am glad to have it running again .


It totally destroyed the engine . I was at wide open throttle so maybe that is why it did so much damage . It broke 5 rods completely off with the back pistons ( 6,7,8 ) being the only three still on rods . Mechanic said he never saw that before .


Opinions ... Tune or still just a faulty rod causing all the destruction ? I really do not know the answer . To me it is tune because it was immediate total destruction but I could be wrong .

strokin7.3

You mean ford puts in the best middle of the road mapping as far as performance/economy to try to make everyone happy. If they put the BEST in there would be no need for aftermarket tuning.

But none of that matters since he has supercharger on his truck and if he had the stock "awesome" ford tuning his truck would run like ****.

strokin7.3

I'd say faulty rod not being able to withstand the extra power the tune gave your motor.

Addison

Back when I had my 04 Mustang (D1SC, 504whp, stock 2v), it lasted 1 quarter mile run then threw a rod.. I know the tune was good, because I tuned it and had been running it at 444whp for 6+ months. But on dyno day I was feeling frisky and put a little more timing in it. After opening the motor, I could see the pistons looked good, so tune was good. I just found the limit of the rod.

So I'm inclined to say that if the pistons looked good, then the tune was good and you just maxed out the rods.

And just for fun, here's the pass that killed it. Lol

xtreme747

I certainly know that feeling . Lol . I think I will keep the lower HP and have the truck stay more reliable . They are making my tune now and it is suppose to be ultra conservative . There is a dynotuner in NH that is suppose to be good . That is only 6 HRS from here so I might go and see them. Need truck to haul boat and camper ... cannot have another engine failure .

Blackpony

I would suggest a conservative custom tune from a reliable tuner. It will be light years better then the tune you have now.

ng8264723

any news?

xtreme747

Truck is running fine still . I have had the S/C back on for over 5 months now with no issues . I am keeping the conservative tune ... truck is still pretty bad***** . It runs past my brothers S/C Hemi ( 5 spd tranny hurts him ) and also my buddies jacked up Duramax .


Had an issue with belt squeal but cut a shim for the alternator pulley and fixed that problem . It was frustrating and took a while to find because the way the alternator is positioned you cannot see the pulley from below or above . Was almost making me hate the truck because it took months to find .


The biggest thing that needs to be done to these kits is to throw away the stock restrictive airbox . I put on an AEM kit and the difference was staggering . Against my buddies diesel it made 6 lengths difference from bottom to top . Much better speed in all areas . Felt like a different truck and AFR's were fine . No doubt in my mind it gained at least 30 RWHP . If you look at the air intake of the 09 there is no doubt why . It was choking the S/C completely off and with a fat Edlebrock tune it can handle the extra air .

xtreme747

JDM tuning really disappointed me . Truck ran fine for 5 months without their tune . 4 minutes with their tune . And 5 months after their tune with no other changes . They said it must have been injector or something but I made no changes other than putting in a used engine .


They offered to give me back my money on the tune but I still wanted to try a safer tune from them . I had to keep calling them and got frustrated with their service . Have it in a few days ... nothing . Call back . Few days more ... nothing . Call back . When I did get it we datalogged this time ( which they said was not necessary the first time ) and had to keep calling trying to get the updated tune .


I realize that they were busy but after their tune causing my engine to go and costing me 4000.00 $ I figured it might put me at the top of the list . One piston was totally destroyed .... I am not an internal engine guy but have been told that if pistons are ok then likely a broken rod from HP . If piston is gone then advanced timing could have easily caused detonation then piston failure cleans motor . My truck has nowhere near the power it did with their tune and I have believe it had the timing advanced too far destoying the engine .


I am not a Lawyer but looking at the facts it is pretty safe to say their tune ruined my first motor . Had 60000 miles on it and only 3000 of them were boosted . Ran 4 minutes with their tune and 10 months without .

ng8264723

I agree it was the tune. I would call J and S Safeguard before you make any tuning changes. They make a little box that will work to help stop detonation