U7137
v.9r07
2007 Dodge Ram 1500 5.7 Hemi CAI and Flowmaster 40 exhaust
91 DSP tune, with 91 fuel (hard to find 93 around here)
I am looking for some help tuning my truck, mostly right now all i'm worried about is making sure i don't damage my truck then ill try to make it better. i have read TONS of info on this but im still confused. i have included a log of me driving wot up to 80ish (3rd gear) i get 3 degrees of short term know and know fuel retard and it last for quite a while, is this bad? i want to get the 91 tune set right before i go for the 93.
Thanks for any help!!
P.S. i know its not alot of data, i will do a longer log of me just driving around town and try to get in every kind of driving
Need tuning help
Moderator: mikel
RE: Need tuning help
Lots of data! Wow guys does 9r07 add all of those items?
So the only thing you can adjust is the WOT parameter, right. So that log is good from about 2:40-3. You don't look too bad. You have some knock mid-range, it basically went away after 5K. Add 5% fuel or so mid range and log WOT again, let it shift 1-2 and 2-3 if you can get away with it. Repeat the steps (add more fuel if necessary) until that ST knock is zero or nearly zero and you got it.
I would keep with the 91 octane tune unless you can find some good gas, otherwise you will drive yourself nuts trying to tune the 93 octane program.
Should be running better than stock, right? Let everyone know!
So the only thing you can adjust is the WOT parameter, right. So that log is good from about 2:40-3. You don't look too bad. You have some knock mid-range, it basically went away after 5K. Add 5% fuel or so mid range and log WOT again, let it shift 1-2 and 2-3 if you can get away with it. Repeat the steps (add more fuel if necessary) until that ST knock is zero or nearly zero and you got it.
I would keep with the 91 octane tune unless you can find some good gas, otherwise you will drive yourself nuts trying to tune the 93 octane program.
Should be running better than stock, right? Let everyone know!
2006 300C-SRT
Mopar CAI/Toyo 245/275 Stagger
185 T-Stat/Catch Can
DiabloToona CMR Gas tune
Extra "Flex" E-85 tune
Mopar CAI/Toyo 245/275 Stagger
185 T-Stat/Catch Can
DiabloToona CMR Gas tune
Extra "Flex" E-85 tune
yeah there is alot more data then i know how to use for sure. i had my laptop hooked up to the predator hooked up to the truck to recod the data. and when i went into live connection mode or what ever its called there where alot more pids on there then just on the tuner.
yeah WOT spark and fuel are the only things that will help me with this far as i know. i believe i also have partial shift points but i dont think that will do me any good. i still have alot of looking left to do on this, i dont understand half of it lol. i will give adding 5% to the 4-5k range and see if it smartens it up at all.
i prob wont get to it tonight but i will log some more data and post it. i did finaly find some 93 (or so it says 93) still getting knock with the 91 tune, hopefully adding 5% will fix it.
Def better than stock by a lot!! now to just make it better
here is some data from driving this after noon with a full tank of 93 on a 91 tune. i was playing with the pedal alot trying to figure out if it only knocked at higher rpms or if it was based on how much fuel i was trying to get it. there is a lull in the graph about 3/4 the way through after that i got 2 decent 0-70ish WOT runs
yeah WOT spark and fuel are the only things that will help me with this far as i know. i believe i also have partial shift points but i dont think that will do me any good. i still have alot of looking left to do on this, i dont understand half of it lol. i will give adding 5% to the 4-5k range and see if it smartens it up at all.
i prob wont get to it tonight but i will log some more data and post it. i did finaly find some 93 (or so it says 93) still getting knock with the 91 tune, hopefully adding 5% will fix it.
Def better than stock by a lot!! now to just make it better
here is some data from driving this after noon with a full tank of 93 on a 91 tune. i was playing with the pedal alot trying to figure out if it only knocked at higher rpms or if it was based on how much fuel i was trying to get it. there is a lull in the graph about 3/4 the way through after that i got 2 decent 0-70ish WOT runs
Nice, perfect example of higher quality fuel working better. That is close to silent to the sensors. You kicked the ST knock down to 1/2 of what it was. That looks a lot like our '07 Jeep with the 5.7 in it. It took just a little extra fuel and then no worries. Wife drives it and loves it. FYI she uses 92 octane Costco gas with the 91 octane tune (little extra fuel), it does fine.
Shutting down the MDS is a big plus if you have not tried it yet.
Shutting down the MDS is a big plus if you have not tried it yet.
2006 300C-SRT
Mopar CAI/Toyo 245/275 Stagger
185 T-Stat/Catch Can
DiabloToona CMR Gas tune
Extra "Flex" E-85 tune
Mopar CAI/Toyo 245/275 Stagger
185 T-Stat/Catch Can
DiabloToona CMR Gas tune
Extra "Flex" E-85 tune
update: did a couple runs with 91 tune adjusted for +5% fuel in the 4-4.8k range. also change shift points to 5800 rpm for 1-2 2-3 and added 5% sensitivity to the throttle (never changed with shift points or sensitivity before) Still running 93
at 6:57 i got a little .5* st knk, im thinking maybe wheel spin cause the rpms spike right there.
at 8:00 i got 4 degrees of st knk but i believe that was from the sudden decrease on the accelerator pedal then getting back onto it hard
and at 9:05 i did a little RPM staging and ran (if my math is correct) a 7.5 sec 0-60
future plans: cut back the fuel at 4-5k a little bit to find the optimum amount and increase the 1-4k range fuel by 2% Thoughts?
Thanks again for any and all help
at 6:57 i got a little .5* st knk, im thinking maybe wheel spin cause the rpms spike right there.
at 8:00 i got 4 degrees of st knk but i believe that was from the sudden decrease on the accelerator pedal then getting back onto it hard
and at 9:05 i did a little RPM staging and ran (if my math is correct) a 7.5 sec 0-60
future plans: cut back the fuel at 4-5k a little bit to find the optimum amount and increase the 1-4k range fuel by 2% Thoughts?
Thanks again for any and all help
You managed to get some long term knock retard now, not good. The log is real hard to read with all of the PIDS selected. Go back and only select these: http://www.diablosport.com/index.php?na ... ic&t=21253
Looks like you picked up a little advance however, but as before keep adding gas. You will certainly need more gas than you had with the 91 octane tune with all things the same except the change in tune.
Looks like you picked up a little advance however, but as before keep adding gas. You will certainly need more gas than you had with the 91 octane tune with all things the same except the change in tune.
2006 300C-SRT
Mopar CAI/Toyo 245/275 Stagger
185 T-Stat/Catch Can
DiabloToona CMR Gas tune
Extra "Flex" E-85 tune
Mopar CAI/Toyo 245/275 Stagger
185 T-Stat/Catch Can
DiabloToona CMR Gas tune
Extra "Flex" E-85 tune
I thought you could select what pids to look at when you download it? idk much about this. ok i will try adding more fuel next time i have a chance.
while im posting something anyway; what are some advantages to adding a 180 stat? i read about it somewhere else and heard it might help with spark knock. are there any disadvantages or dangers?
while im posting something anyway; what are some advantages to adding a 180 stat? i read about it somewhere else and heard it might help with spark knock. are there any disadvantages or dangers?
We can select the PIDS after the download. You need to deselect all of the PIDS because you are logging all of them now and asking the tool to log TONS of data. What happens is the rate at which the data is recorded is reduced because you are logging so much. So go in and only select the PIDS in accordance with that last link. Fun thing is with just the important ones logging you can watch that ST knock Retard as you are going down the road. Eliminates the step of uploading to the computer and looking at it, then going out to the vehicle and changing the settings and doing it all over again!
The thermostat is a good idea because the hemi's are prone to "heatsoak". Once they get above a water temp of about 190 the performance goes down. The manufacturer wants the temps above that for pollution reasons. You can search some prior threads on the "why". Myself and tons of others use 180 or 185 degree thermostats. Have been for years....no negative effects. Some cars will throw a temperature code, especially with the 180 and less thermostats. Some do and some don't. I keep my 185 in year around and drive around Minneapolis in the winter without throwing any codes, they say I am lucky. Keeping that engine cooler will help your knocking problem a bit.
You are getting "it" hang in there. Your truck has to be working quite a bit better. I know both my SRT and Jeep work MUCH better with the tunes loaded in.
Now we need to bring the Jeep in for some EGR codes tomorrow that I have been clearing for months now, and I need to explain to them how NOT to flash that thing or they are going to pay me $129! That should be fun.
The thermostat is a good idea because the hemi's are prone to "heatsoak". Once they get above a water temp of about 190 the performance goes down. The manufacturer wants the temps above that for pollution reasons. You can search some prior threads on the "why". Myself and tons of others use 180 or 185 degree thermostats. Have been for years....no negative effects. Some cars will throw a temperature code, especially with the 180 and less thermostats. Some do and some don't. I keep my 185 in year around and drive around Minneapolis in the winter without throwing any codes, they say I am lucky. Keeping that engine cooler will help your knocking problem a bit.
You are getting "it" hang in there. Your truck has to be working quite a bit better. I know both my SRT and Jeep work MUCH better with the tunes loaded in.
Now we need to bring the Jeep in for some EGR codes tomorrow that I have been clearing for months now, and I need to explain to them how NOT to flash that thing or they are going to pay me $129! That should be fun.
2006 300C-SRT
Mopar CAI/Toyo 245/275 Stagger
185 T-Stat/Catch Can
DiabloToona CMR Gas tune
Extra "Flex" E-85 tune
Mopar CAI/Toyo 245/275 Stagger
185 T-Stat/Catch Can
DiabloToona CMR Gas tune
Extra "Flex" E-85 tune
sorry its been a while guys, been really busy moving and whatnot (still pretty busy actually lol)
today i changed my tune to 87, didnt adjust anything except to turn of mds. i am running 91 fuel in it till the next time i fill up
i went for a drive and at one point got a knk st retard of 5, i was decelerating to around 30 and then punched it to 60 or so. other than that the highest i got was 2.5, 0-60 or so(fastest i could get around here). seemed to occur around 5k rpms. do you guys think i need to worry about this?
thanks for any help
today i changed my tune to 87, didnt adjust anything except to turn of mds. i am running 91 fuel in it till the next time i fill up
i went for a drive and at one point got a knk st retard of 5, i was decelerating to around 30 and then punched it to 60 or so. other than that the highest i got was 2.5, 0-60 or so(fastest i could get around here). seemed to occur around 5k rpms. do you guys think i need to worry about this?
thanks for any help
screwed around some more tonight, got 87 in it now (3/4 - 87 and 1/4 91) wicked ST KNK!! so i bumped the fuel, up to 10% rich in the first and second bracket and (i think 1k-3.5k and 3.5-5k?) and 7% in the last bracket (5-6k?) and im still getting some knk but better than before, highest was 3.5
im assuming i still need to add more fuel????
im assuming i still need to add more fuel????
ok still having problems, maxed out the fuel to add so i changed back to stock tune (just turned off mds) still knocking!!!!!!! st and lt, the worse seems to be when im giving it 50% throttle or more.... if i give it a little more throttle it will downshift which seems to eliminate some of it but not all.... i really need some input here guys!!!
you would think putting it back to stock would rid the knock... but it didnt so something else must be the problem... spark plugs? fuel filter? dirty intake? i have no clue here... please help me!!!!!
you would think putting it back to stock would rid the knock... but it didnt so something else must be the problem... spark plugs? fuel filter? dirty intake? i have no clue here... please help me!!!!!
