NJFBOA - Home of New Jersey's Camaros and Firebirds - View Single Post - amazing gas mpg after tune M6 even with 4:10's

DaSkinnyGuy · 05-27-2010, 12:39 AM

Using Hptuners adjusted the AFR when the cars at 7% or less TPS% most tuners just do power enrichment mid to high rpm for power

May 14th i took a trip to NJ. This was my first time i got to take a long trip since having the car tuned with hptuners, on cruise control to average my gas mpg. driving up I-77 then I-81 through from NC to southern VA has alot of elevation change so i didn't start my test till northen VA. I refueled at exit 313 on I-81N in VA this part of VA and started my test, i had the car on cruise control 65mph and a reminder i have 4:10 rear gear, my rpm is 1,700.

we have a 16.5 gal fuel tank, the fuel pump takes up some space, with this being said thats roughly 16 gallons of fuel storage. a quater tank would be 4 gallons,half a tank 8 gallons. Once i started getting closer to the half tank mark i ran into truck traffic on I-78 in eastern PA and western NJ but even then ill take the 32.8mpg average because i know that if it wasnt for the traffic and some elevation change that would be a high number.

I also know my cars in very good maintence condition:
*clean wix air filter
*MAF sensor clean
*TB clean
*acdelco iridium plugs & magnecore wires have maybe 20,000 miles
*oil had been recently changed
*tires have alot of tread and were all properly inflated
* car had been recently seafoamed so if that product does work theres shouldnt be any carbon buildup
*lucas fuel treatment had recently been used also if that product works should have no carbon build up
*also at times the big pedal on the right helps make sure no carbon buildup

Side note back in the day when i had 3:42 gears and factory tune best mpg i got was 32mpg on cruise control 65mph at 1,500rpm

at the 3/4 mark, 147.2 /4=36.8mpg

at the 1/2 mark 262.6/8=32.82mpg

P.S. if anyone has any thing against the way i did my test feel free to let me know so i can make a change when i make my next trip to NJ in july. By then i do plan to tweak a little more with hptuners and even hook the wideband up.

05-27-2010, 12:39 AM	#1
DaSkinnyGuy Join Date: Jul 2006 Location: unknown Posts: 2,776 iTrader: (0)	amazing gas mpg after tune M6 even with 4:10's Using Hptuners adjusted the AFR when the cars at 7% or less TPS% most tuners just do power enrichment mid to high rpm for power May 14th i took a trip to NJ. This was my first time i got to take a long trip since having the car tuned with hptuners, on cruise control to average my gas mpg. driving up I-77 then I-81 through from NC to southern VA has alot of elevation change so i didn't start my test till northen VA. I refueled at exit 313 on I-81N in VA this part of VA and started my test, i had the car on cruise control 65mph and a reminder i have 4:10 rear gear, my rpm is 1,700. we have a 16.5 gal fuel tank, the fuel pump takes up some space, with this being said thats roughly 16 gallons of fuel storage. a quater tank would be 4 gallons,half a tank 8 gallons. Once i started getting closer to the half tank mark i ran into truck traffic on I-78 in eastern PA and western NJ but even then ill take the 32.8mpg average because i know that if it wasnt for the traffic and some elevation change that would be a high number. I also know my cars in very good maintence condition: clean wix air filter MAF sensor clean TB clean acdelco iridium plugs & magnecore wires have maybe 20,000 miles oil had been recently changed tires have alot of tread and were all properly inflated * car had been recently seafoamed so if that product does work theres shouldnt be any carbon buildup lucas fuel treatment had recently been used also if that product works should have no carbon build up also at times the big pedal on the right helps make sure no carbon buildup Side note back in the day when i had 3:42 gears and factory tune best mpg i got was 32mpg on cruise control 65mph at 1,500rpm at the 3/4 mark, 147.2 /4=36.8mpg at the 1/2 mark 262.6/8=32.82mpg P.S. if anyone has any thing against the way i did my test feel free to let me know so i can make a change when i make my next trip to NJ in july. By then i do plan to tweak a little more with hptuners and even hook the wideband up. __________________ 2000 Pewter Trans am, M6, SLP Lid,LS6 intake,Kooks 1 7/8" Long tube header,Classic Chambered Powersticks, hurst,off road X-pipe, Strano springs & Koni's, Monster level 2 clutch, HPtuners wide band tuned and a homemade ram air box sealed off. Last edited by DaSkinnyGuy; 05-27-2010 at 02:39 PM.