45% over mpg tune
- Thread starter DIESELMAFIAPER.LB7
- Start date
x2 i ran mine about 300 miles one way with my 80hp injectors(dont know what % over they would be considered) at 80 and 85 mph with just my 40hp superchips tune and got 18 mpg. Rpm was about 2500-2700 iirc
WOW ya at 80 mine is around 2100-2150 rpm. really no one has any tips to try or anything to share? ive gotten a lil better avg 16 but could use more
also any input on the pilot timing and pusle??
also any input on the pilot timing and pusle??
I am not trying to be an asshole, with that said you tune trucks for profit so a lot of guys are going to be very reluctant to share their discoveries with you.
We'll I haven't had troubles with others just mine and I understand what your saying just trying to get more of a feel I've had a set of 100% overs that were cake to.tune mine is just a pita an I think more and more its just the nozzles themselves so just trying to make sure its doing what I think its doing with pilot pulse and timing
Its stock height and I'm nit lowering it and putting dinky tires on it's a truck but ill keep.plugging away at it the injectors are going to Exergy sometime this winter
I got 22 on stock injectors with the exact same wheel tire package I dunno ill post up what I figure out
I have 315's on my truck, and I get 16-17 MPG mixed city/highway. I'm lucky to see 13 in town. Your tires are a bit narrower than mine, so you should be able to do at least that, even with the big sticks. I don't know how the heck you got 22 before. Want to share that for those of us with stock sticks?!?
So far in my tuning I've found the most effective thing is adding timing. Your timing sounds close to what I have, but with big sticks you may need a hair more. I have 6 degrees at 1600 RPM, and 8 degrees at 2200 RPM. 6 degrees @ 1600 just gives me a hint of timing rattle, but the 8 degrees @ 2200 is smooth and quiet.
The trick to killing off the rattle was to adjust the pilot injection timing. I added a couple degrees to the pilot timing table, which got rid of most of it. Still a little more tweaking needed. With larger sticks, you'll probably have to play around for a while. You may actually need to subtract pilot timing, I don't know.
I know this is with stock injectors, but hopefully this helps some.
So far in my tuning I've found the most effective thing is adding timing. Your timing sounds close to what I have, but with big sticks you may need a hair more. I have 6 degrees at 1600 RPM, and 8 degrees at 2200 RPM. 6 degrees @ 1600 just gives me a hint of timing rattle, but the 8 degrees @ 2200 is smooth and quiet.
The trick to killing off the rattle was to adjust the pilot injection timing. I added a couple degrees to the pilot timing table, which got rid of most of it. Still a little more tweaking needed. With larger sticks, you'll probably have to play around for a while. You may actually need to subtract pilot timing, I don't know.
I know this is with stock injectors, but hopefully this helps some.
How do you know what I do and don't do?
I can tell you this, I am the guy a guy like you brings his truck to when it needs fixed properly.....that's what seperates me and you. You read stuff....I do stuff.
When are you gonna grow up......step out of Mike's shadow and stop believeing everything someone who doesn't know much tells you.