Re: Tuning for optimal mpg with DHP
i used the values posted by zafrin and gained about 1.8 mpg on my local. highway i still get high 20's to 30 easy.
Re: Tuning for optimal mpg with DHP
on a side note, the values zalfrin suggested have to be entered in using tiny tuner. dhp does not have adjustment capabilities for those tables.
Re: Tuning for optimal mpg with DHP
Quote:
Originally Posted by
SgtMarshal
I thought I saw a dhp guide on tuning for optimum fuel economy, but after looking through Bill's drop box, I have come up empty handed. maybe I need to do some more searches.
There was a small section on that in Jerry's Tuning Notebook.
Re: Tuning for optimal mpg with DHP
Quote:
Originally Posted by
Zalfrin
There was a small section on that in Jerry's Tuning Notebook.
I saw that after a while, it was at the very end.
Re: Tuning for optimal mpg with DHP
Quote:
Originally Posted by
Zalfrin
Take a peek at the PE Enable Cylinder Mass Air vs RPM table in thingy suite or tiny tuner. GM left this zeroed out for all 97-03 w-bodies, so as a result most tuners will use TP% to decide when to enter PE. This either results in worse fuel economy from entering PE too early, or knock from entering PE too late. Using cylinder air mass is a better solution since it relates to engine load. I used PE Enable TPS of 15-30% coupled with the cylinder air mass enable (both conditions must be met for PE to be triggered, so you want to set the TP% low). Result was a vastly improved daily driving experience. Give it a try some time. Table I used for cylinder mass enable follows.
520
520
520
420
480
480
440
460
460
400
85
0
0
0
0
0
This should be a good start, basically what you're doing is using engine load to determine when to enter PE. You can raise the cylinder mass numbers to enter PE at a higher load, or lower to enter at lower load. If you want to tune the numbers further, you want to enter PE as late as possible while still maintaining no knock in order to maximize fuel economy.
Where do you start from for adding this data? Zero(0) is the first value on the left in Tiny Tuner, then it is 400. The reason why I ask is you have 16 values and Tiny Tuner has 17 values starting from 0 to 6400. Just thought this would help clarify things for all of us.:th_thumbsup-wink:
Re: Tuning for optimal mpg with DHP
pm me your email, ill send you my bin and you can copy it if you want.
Re: Tuning for optimal mpg with DHP
Re: Tuning for optimal mpg with DHP
Quote:
Originally Posted by
moddman
Where do you start from for adding this data? Zero(0) is the first value on the left in Tiny Tuner, then it is 400. The reason why I ask is you have 16 values and Tiny Tuner has 17 values starting from 0 to 6400. Just thought this would help clarify things for all of us.:th_thumbsup-wink:
Whoops! I left out one "460", here's another try if you're curious.
520
520
520
420
480
480
440
460
460
460
400
85
0
0
0
0
0
Re: Tuning for optimal mpg with DHP
thanks for the clarification