Dave's Evo X Build/The Life of Dave blog

[C3L1CA]

I must have missed it, but why are you back on stock injectors and tuning on them?

[Murlo26]

Trying to scale my MAF using stock injectors and stock injector scaling. The theory is with stock injectors, scaling and some pump gas the only thing to dial in should be the MAF scaling.

Well that is fine and dandy on a 2.0L stock compression motor but my motor the VE has changed enough to where we need to do the MAP tables to it would seem.

[Kracka]

If you want my 2-cents, which you probably don't, but... take this thing to a professional tuner!

[Halon]

If you want my 2-cents, which you probably don't, but... take this thing to a professional tuner!

+ infinity

[Murlo26]

Well after like 2 revisions, Jon from HBspeed has my MAP tables infinitely better tuned! The car drives almost stock right now. I am loving it.

So it appears that it wasn't my fuel pump at this point, we will see with a few more revisions, but the trims aren't maxed out anymore, still at 10% which is way way better.

More to come.

[turbotalon1g]

what did he do?

[Kracka]

Drenas FTW!

[Murlo26]

He modified the MAP tables which are related to the speed density portion of the tune. Also they are similar and/or based on the VE tables. I don't fully understand them myself but that was the main thing he adjusted.

[turbotalon1g]

good shit. Surprised you don't just take it to get tuned and be done.

Or maybe you and scheidesy can have a get together and knock her out one night?

[Murlo26]

There are very few people that seem to know how to correctly do the MAP tables on the X...Jon at HBspeed is one of them. I trust him and am going to let him dial it in. It's only gotten better with each revision. My trims are already within +/- 5% after 4 revisions. We moved onto higher rpm spots to further dial in the tables.

edit: Jon also has the car comfortably idling at 850rpms as opposed to 1200 I had it when I was playing with it lol. Much quieter.