Poor gas mileage

[Mopar1973Man]

1 hour ago, Evan said:

She now wears 34s has about 2k in bed and still gets good mpg numbers.

 

How are you mathing the odometer? If you are using a percentage offset it will be errored. You have to use a GPS to get you odometer unless you have the revs/mile flashed to the ABS computer. 

[Evan]

Actually my trip meter doesnt work and I'm not sure odometer is. I used Grant's pass as an example because I know it's a 670mile trip.

Actual tire height is 34" I have that set but haven't checked odometer to see if it's even reading more than a few hundred miles a tank 

 

So yes you are correct I have no concrete numbers

[tylertrebilcock]

On 7/29/2018 at 2:02 PM, RottenMutt said:

what are your exhaust temps at 65 mph cruse?  i'm thinking late injection timing?

Around 800 pretty high and I’m not happy with it. You think too much timing?  Also on stock injectors still at 210k

[Mopar1973Man]

More timing lowers the EGT's.

 

Less timing builds more boost.

[RottenMutt]

Less timing can result in boost creep.

[tylertrebilcock]

7 hours ago, Mopar1973Man said:

More timing lowers the EGT's.

 

Less timing builds more boost.

What would be a good parameter to begin adjusting? 

[Mopar1973Man]

Like I'm running 14, 17, 20, 23, 26 for timing. Then cruise timing is plus 3 with load limit of 30% right now. Bouncing 18 to 20 MPG.

 

Those 34 inch tires are not helping. I'm getting ready to drop 31 inch tires for 30 inch tires. Better gear ratio and power.

[tylertrebilcock]

On 8/4/2018 at 10:35 AM, Mopar1973Man said:

Like I'm running 14, 17, 20, 23, 26 for timing. Then cruise timing is plus 3 with load limit of 30% right now. Bouncing 18 to 20 MPG.

 

Those 34 inch tires are not helping. I'm getting ready to drop 31 inch tires for 30 inch tires. Better gear ratio and power.

Okay should I start with those numbers for a baseline? Im on stock injectors. I’m also doing a 4:10 swap right now finished the rear yesterday gonna start the front today. Should bring my final ratio to about 3:69. I know rotational weight still has its effect but the gears should help quite a bit still

[Mopar1973Man]

Those will work good. I just made a run slamming 45 PSI of boost and tore the rear tires loose.