Ive purchased a truck from a friend of mine. We recently reflashed it with some new tunes from Kory and have had nothing but issues. ( Im new to the big single turbo game, and fairly new to the EFI game; having only owned trucks with just EFI in the past )
Heres the backstory on the truck : Built by Diesel Addiction in 2010.
S475 single, Wicked Stage 3 Cp3, Exergy 60% Injectors, manifolds and up pipes, studded with C gaskets, Gmax 5 with Precision converter, BT lockup box, Pro fab Y bridge, AFE IC tubes, supporting mods...etc
The truck was originally running Dustins pulling tunes and were too smokey and just unpleasant to drive on the street. So we made a call to Kory and had him write a few tunes for it. The new tunes are not as strong as the previous ( which is fine because I know its more safe ) and they are of course way less smokey.
But the new tunes have alot of issues that have yet to be worked out with Kory after multiple data logs were submitted on several different occasions.
1. The first issue is a RPM jump before shifting on the higher HP tunes. The truck will cruise thru 1-2nd gear then on occasions when changing into 3rd and 4th it will jump RPM almost like it rev's between gears.
2. The second issue is that there is a short engine rattle through the gears on every tune. If your just cruising through the gears barely on the fuel pedal there is a short rattle ( its loud as shit ) before gear changes @2000-2200 RPM under 2psi of boost. I dont know if its a pilot/main injection or some other issue.
3. The third is that the truck will act like its missing sometimes going into 4th gear. It will spit and sputter and puff some white smoke. Once the white smoke clears it will drive like normal.
4. The fourth issue is the shifting itself. The truck wants to stay in the higher RPM range even when just cruisng on the lowest HP "stock" tune w/ TowHaul off. Now I know that is good for spooling the large turbo but it can be down right annoying at times. Can this be fixed or atleast tamed?
- These issues were not here with Dustins tunes -
With that being said the truck still runs strong and made 697/1150 on the dyno at Rudys with the first set of tunes that Kory sent for the truck. If the small issues could be worked out that would be great. Several sets of data logs in every tune, normal and WOT, have been sent and no resolution.
I understand Kory is busy and its hard to remotely tune a truck thats setup like this. But the truck hasn't been completely right for almost 4 months now and its getting a little monotonous. This is no attempt to bash Kory for his work because I know its WAY over my head. This is just a thread about issues I'm having and considering switching tuners. I've had Korys tunes on a few other trucks and they've been flawless.
Sorry for the novel it just takes alot of explaining. Any help is appreciated.
Heres the backstory on the truck : Built by Diesel Addiction in 2010.
S475 single, Wicked Stage 3 Cp3, Exergy 60% Injectors, manifolds and up pipes, studded with C gaskets, Gmax 5 with Precision converter, BT lockup box, Pro fab Y bridge, AFE IC tubes, supporting mods...etc
The truck was originally running Dustins pulling tunes and were too smokey and just unpleasant to drive on the street. So we made a call to Kory and had him write a few tunes for it. The new tunes are not as strong as the previous ( which is fine because I know its more safe ) and they are of course way less smokey.
But the new tunes have alot of issues that have yet to be worked out with Kory after multiple data logs were submitted on several different occasions.
1. The first issue is a RPM jump before shifting on the higher HP tunes. The truck will cruise thru 1-2nd gear then on occasions when changing into 3rd and 4th it will jump RPM almost like it rev's between gears.
2. The second issue is that there is a short engine rattle through the gears on every tune. If your just cruising through the gears barely on the fuel pedal there is a short rattle ( its loud as shit ) before gear changes @2000-2200 RPM under 2psi of boost. I dont know if its a pilot/main injection or some other issue.
3. The third is that the truck will act like its missing sometimes going into 4th gear. It will spit and sputter and puff some white smoke. Once the white smoke clears it will drive like normal.
4. The fourth issue is the shifting itself. The truck wants to stay in the higher RPM range even when just cruisng on the lowest HP "stock" tune w/ TowHaul off. Now I know that is good for spooling the large turbo but it can be down right annoying at times. Can this be fixed or atleast tamed?
- These issues were not here with Dustins tunes -
With that being said the truck still runs strong and made 697/1150 on the dyno at Rudys with the first set of tunes that Kory sent for the truck. If the small issues could be worked out that would be great. Several sets of data logs in every tune, normal and WOT, have been sent and no resolution.
I understand Kory is busy and its hard to remotely tune a truck thats setup like this. But the truck hasn't been completely right for almost 4 months now and its getting a little monotonous. This is no attempt to bash Kory for his work because I know its WAY over my head. This is just a thread about issues I'm having and considering switching tuners. I've had Korys tunes on a few other trucks and they've been flawless.
Sorry for the novel it just takes alot of explaining. Any help is appreciated.
