Inliners International Forums General Discussion Hi Performance Help needed to change 4 piles into 1

Tom,


Long post but this is the what really makes tuning MS so much easier than a lot of the other systems out there. Once you go through it once you'll permanently toss your jet kit.

I've seen MAC wizards run windows programs on a MAC so there is a way to do it I just don't know how (not a MAC person).

Maybe time to find a slightly better laptop. Say something with Windows 2000 or Windows XP and a Pentium II processor. Locally a used laptop like this is about $120 to 150 depending how beat up it is.

Something a bit faster will allow you to run the fuel optimization programs.

This is a really cool feature of MS. Once you have the truck running and idling, you save your VE table using the save as feature. Also set the target AFR table to what you think the engine wants ( say cruise 15.0:1, idle 14.0:1, power 12.8:1) and open a datalog in megatune (this is the tuning s/w that runs on the laptop and allow you to alter the fuel mixture, AFR and spark advance tables) and drive the truck. Run the engine though as many points on the fuel table as you can - its better to have a buddy either drive or hold the laptop. You can watch where in the fuel table the engine is operating in real time

After 10 miles or so stop the datalog.

Then open the megalogviewer optimization program. In this program you open your existing VE(fuel) table, your target AFR table and your datalog that you just recorded.

Once these 3 inputs are loaded you hit the optimization button and the program goes through and automatically adjusts the VE table based on the difference in AFR target table and your data log that has real time A/F mixture feedback from your wideband O2 sensor for each point in the fuel table that you operated the engine in during the datalogging drive. Once its done - save the optimized VE (fuel)table to the laptop hard drive and then in megatune send the new VE(fuel) table into the MS.

After 3-4 repeats of the above you'll have a pretty good fuel set up for all the VE entries except full power WOT which is better to fine tune (and safer) on a chassis dyno.

This will give you something to look forward to..