tune

im thinking that the next mod for the truck is going to be a tune. not too sure what to get. any suggestions?

muawhahah nelson 93 tune DUH

why the 93 tune??
whats the difference between the 87 and 93????
or even the dual 87-89 or 91-93??
im so confused

93 is where you'll get the most power, and imo if your gettin a tune done, you better get everything you can outta your truck for the money...and definately go with nelson...I raced a truck pretty similar to mine with a nelson tune and mine having the diablosport "canned" tune and the other truck pulled me pretty good.

the 93 will give you more power, and hopefully better milage than an 89, at least thats my understanding

so the 93 will give you better Fuel economy than the 89?

generally, the better the fuel, the better the milage

Not sure about that.

I'd say for sure that if you get a lower octane tune and run higher octane fuel, you'll get worse mileage. That's what happened when I used 93 with my current tune.

I am retuning for 93 soon (maybe this week). On a vehicle like mine (my wife's) that goes 7K miles per year, the extra power is worth $0.20 per gallon even at the HORRIBLE mileage a 6.0 AWD utility gets.

Higher octane than the tune level does not offer any power but reduces MPG. Lower octane than the tune loses big power and could hurt the engine after enough time and abuse.

ok that all makes sense now.
i see some guys on here with speed density tunes....what is the difference??
oh and what about a live tune??

thanks so much for all the input from everyone

Speed density refers to using qualified logarithmic tables for fuel and spark delivery instead of the computer adapting to a lot of sensor information. I guess this is done in radical situations or strip only applications but someone else here knows a lot more of the whys for speed density tuning than I do.

A live tune refers to modified fuel and spark delivery custom made using information gathered from your specific vehicle (either on a chassis dyno <also called a dyno tune> or on a safe section of road) to optimize the set up. The loose opposite is a mail order tune where a tuner uses safe averages and manipulates a PCM that is sent via the mail, etc. for installation by the end user with canned parameters.

Does that make sense?