Me78569

very sorry for your families loss. I can't imagine. prayers for your family.

No perks i accept, but i am not the end all be all.

I was hoping that was not the case. There is no hope in cleaning up your injectors. DDP does not use the stock spray angle, or a spray angle I approve of for a vp44 truck. Various people have tried to tune out the smoke and it never works, the injectors spray too much fuel outside of the bowl resulting in a dirty burn...... which REALLY sucks because DDP are extremely expensive. A set of run of the mill @dieselautopower injectors run 3x more clean for a given injector size.

who built your injectors?

who's injectors? my starting % with 7 x .012's ( ~200's) was 68-70.

Doesn't really matter. we have a "I don't vote for a 3rd party because my vote would get thrown away" loop. the only way to make it happen is by "throwing the vote away" enough people do that and suddenly it is no longer a throw away vote. dem and republican's are both garbage at this point, I am not convinced either actually wants change.

best thing we can do as a country is turn the tv and "news" off. Vote independant and try and get rid of this 2 party system of garbage live healthly and respect each other and don't take it as a personal attack if someone doesn't agree with you on something. Everyone needs to grow a pair, have some self worth and worry about our own issues and not the issues others may have.

Have you followed the steps in the tuning guide to find what your 0 psi tune setting should be for your setup? The extra load and bad final ratio won't help, but you should be able to clean up a good bit of smoke if you follow the guide. Mike's tunes will be a good place to start, but messing with the canbus fueling curve should help.

Well the lvl 3 log and the lvl 5 log you are hitting max duration now. WOT is critical for that then. however your lvl 3 log should be should 60+ psi even without wiretap not peaking at 28 psi. Either your map sensor is not working %100 right or you have a major boost leak. given that your EGT's are hovering around 1100*f at wot I am going to assume your map sensor is just not reading like it should be and boost is a lot higher than what the quad is reading.

Ill look on sunday. If boost jumps from 4 to 20 psi i know something is up with the map circuit.

No saying you don't beieve me just that I encourage everyone to datalog, as my datalogs are my datalogs and don't means every truck is the same. lol I come off a little bit of an *** sometimes Run that tune I posted that starts in the mid 70's on level 3 and lets see if we can get %100 throttle to give us a nice curve with %100 duration.

More fuel != faster. Generally speaking once you have black smoke you are not actually getting full burn. you are air limited offidle so you will only burn what you have air for. The graph is showing 2 runs overlayed, 1 run with a "max effort" 1 run with a daily smoke free tune. both runs are 0-60 mph snap to WOT run same stretch of road same day back to back. blue columns are the fueling command for the overfueled datalog, green are the fueling commands for the smoke free tune, Both tunes comand peak duration by line 17. however if you look at the other data points on the graph you can see that mph, boost, rpms all mirror each other when comparing 1 run to another. There is no difference in the 0-60 time between the runs. This tells us that even though the max effort tune was throwing %100 of the possible fuel at the engine offidle it didn't actually make the truck faster. The key is the right amount of fuel at the right time. It makes your truck less scary, smoother, less smokey, but not really any slower on a street driven truck. Daily driving the overfueled tune "feels" faster, but that is %100 in the brain. your brain says wow the truck is fast at only %30 throttle, however you brain doesn't know that %30 throttle is actually = %80 on the smoke free tune. all you are doing by running a max effort tune is shifting fueling related to tps input down in the map. As we see in your datalogs when you are at peak rpms using only %40 throttle you are actually not even getting full fuel because the ecm sees you are only at %40 throttle. If you think my datalogs are incorrect I encourage you to go out with a Max effort tune again on lvl 3 only and from a standstill go WOT, then use a clean tune and repeat. send over the datalogs and we can look at this. I am willing to bet that your max effort tune is no faster than a smoke free tune. Your butt dyno says otherwise, but your butt dyno is lying. The butt dyno doesn't tell you how much power you have only how rapidly the torque curve changes. An abrupt change feels like a lot, but a smooth linear ramp up does not.

The idea with a proper tune is that if you go WOT you are throwing the right amount of fuel at the truck so you ramp up fueling smooth and steady. Throwing a ton of fuel at the truck isn't actually faster, but torque comes on more like a light switch rather than ramping up. Here is an old datalog where I setup 2 tunes. 1 perfectly clean, 1 using %150 settings across the board. Both were snap to WOT from 0 mph to 60 mph. You can see that the blue bar graph ( overfueled ) ramps up to peak right away, where as the green one ramps up slower, both peak fueling. However if you look at the boost and mpb lines they follow each other without one standing out. over fueling != faster lighting turbo when talking about normal sized turbos. Your 62 is a normal turbo.

It shouldnt be scary, whats the point of ponies if you dont use them. But yes datalog.

Run this tune and go WOT from a stop on lvl3. lvl 3 does not use wiretap. we are just looking to figure out if you are getting full fueling at WOT and looking at a WOT data log. Once we are happy with how it runs without wiretap we will talk about adding wiretap in. for now no wiretap. Power Levels: 6 Fuel Load timing: 2 Low PSI Timing Reduct: 2 Timing Reduct Scaling: 100 Light Throttle Timing Adv:2 Light Throttle Timing Load Limit: 30 Timing vs rpm 1500: 16 2000: 19 2500: 25 3000: 29 Timing Max: 30 Pump Stretch: 2000 microseconds TPS Pump max: 100% TPS Pump Min: 0% Minimum Pump Tap Fueling Percentage:0 Pump Low Boost Scale PSI: 10 Boost Scaling: 40 PSI RPM Limit: 3500 Power Reduction: 10% 0 PSI %: 76 1 PSI %: 77 2 PSI %: 78 3 PSI %: 79 4 PSI %: 80 5 PSI %: 82 6 PSI %: 84 7 PSI %: 86 8 PSI %: 88 9 PSI %: 90 10 PSI %: 92 11 PSI %: 94 12 PSI %: 98 13 PSI %: 100 14 PSI %: 102 15 PSI %: 104 16 PSI %: 108 18 PSI %: 112 20 PSI %: 116 22 PSI %: 120 24 PSI %: 124 26 PSI %: 128 28 PSI %: 132 30 PSI %: 136

I am assuming you cleared the code and it came back?

thats what the adr is good at.

I am really not sure, all i know is looking at your data logs I think your boost according to the ecm is not coming on fast enough compared to other 62/75 twin setups. I would expect to see 20+ psi by 2k rpms with the fuel you have. having only 10 psi at 2k rpms means the ecm is not fueling hard. look at my data logs and see how my 30 psi setting of %120 help fueling at max until over 3k rpm. I was at WOT thought. I would ensure you are on lvl 3 only, and from a stop go straight to WOT while data logging. Pull to 70mph is possible wihtout lifting and post the datalog. I would expect boost to climb to 50+ psi by the end of 2nd and have it hold or increase throughout 3rd and od. Here is another datalog of mine of a Wot to 70 + mph Note how canbus (green bar) peaks at the end of 2nd and pretty much holds peak at 4095 until the end of the pull. also note how boost peaks ( middle blue color) and holds at ~36 psi from the end of 2nd on as well. again this tune started at %68 canbus at 0 psi to 120 at 30 psi with no wiretap. I was hitting peak duration and holding. If you look at the log I posted earlier of your run your canbus falls off as rpms raise, this tells me 1 of 2 things or both it causing it. 1. tps is to low for the ecm to think you are driving hard, 2 boost is too low for the ecm to be fueling hard. I know for a fact that upper end duration is being lost due to not enough tps input. but the 1800-2400 rpm region might be a combo of both.

dont overthink it, the rv275s arent big enough to really need to tune. grab any of the stock injector tunes and run them if you are unhappy with fueling then add %5 to the canbus fueling curve across the board

basic directions from the above article

Just follow the tuning how to. It should take more than an hour to get your canbus curve figured out. You can mess with it until the cows come home butgood enough doesnt take too long. Dont pay someone for a tune for your truck. Get a starter tune and fine tune the canbus curve.

It just seems htat you should be making that 60 psi way lower in the rpm band. I will try and dig up a data log from trevor ir tyler.

Or there isn't enough load to build boost and the converter is just being blown through until lockup.

Can you data log a 3rd gear 1500 rpm to od pull? WOT? I would expect your setup to make 60+ psi on a 0-60 pull.

another point to make for the wot vs %50 throttle is since the quad is using the oem fueling message and multiplying if your tune is setup at %150 across the board the ecm never fuels hard because it doesn't see high throttle input. your tune still adds a ton of fuel on top but if you are wrapping out rpms to 3k rpms at %50 throttle the ecm is only going to be giving you ~ %25 duration because it's maps look at rpm, tps, and boost. where as if you are at %100 throttle 3k rpms the ecm is going to be giving you 50-%75 duration. even with a stock stall coverter I would expect to see more boost than I see in your datalogs. I've been in 62/75 trucks before and even at 8k' elevation they were building 30+ psi at 3k. here you are at %50 duration at 2k rpm and only building 3 psi of boost. that is the sweet spot for a VP you should be making 20+ psi with your fuel and air. I am guessing your truck doesn't have 3rd gear lockup? Is your converter able to load the engine enough to build boost?