im thinking that the next mod for the truck is going to be a tune. not too sure what to get. any suggestions?
im thinking that the next mod for the truck is going to be a tune. not too sure what to get. any suggestions?
T-RAV99 GMC | 5.3 | Skinny White Guy Tuned
muawhahah nelson 93 tune DUH
1951 3100
1984 C10
why the 93 tune??
whats the difference between the 87 and 93????
or even the dual 87-89 or 91-93??
im so confused
Last edited by bangbangskeetskeet; 08-24-2008 at 05:10 PM.
T-RAV99 GMC | 5.3 | Skinny White Guy Tuned
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.
Mike
2000 RCSB
'05 LS2 11.5:1 C.R. l K&N l LT's l Torquer V2 l PAC Springs l Manley 7.4's l 92mm TB l LS7 Lifters l Circle-D 3200 l P&P TB l ARP Rod Bolts l LS1 E-fans l Nelson 93 Tune l Brand-X 100 Shot l Walbro 255 l Duals w/ X and Magnapacks l Vette Servo l Transgo S.K. l 30K Cooler l Detroit Tru-Trac l Motive 4.30's l ARP Cap Studs l TA Girdle
the 93 will give you more power, and hopefully better milage than an 89, at least thats my understanding
01 Silverado
so the 93 will give you better Fuel economy than the 89?
2008 GMC Sierra 5.3
RCSB
K&N Intake,Flomaster Dump,3.73,g80
Comming soon :Cam ,Nelson Tune, LT Headers and the works.
generally, the better the fuel, the better the milage
01 Silverado
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
T-RAV99 GMC | 5.3 | Skinny White Guy Tuned
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?
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