rpms at cruize speed on hiways whats yours
#1
rpms at cruize speed on hiways whats yours
ok so i been looking at a lot of cars latly and been watching where they sit at rpm wise in relation to speed and mine seems like its really low for some odd reason....i got 3.11 gears and stock tranny as far as i know my rpm and speed are these are with my equus tack. if its right that could explain my decent gas mileage
55mph=1550rpm
65mph=1800rpm
70mph=2000rpm
75mph=2100rpm
80mph=2250rpm
85mph=2400rpm
90mph=2500rpm
55mph=1550rpm
65mph=1800rpm
70mph=2000rpm
75mph=2100rpm
80mph=2250rpm
85mph=2400rpm
90mph=2500rpm
#4
My '02 has 32 x 11.5" tires, 3:42 gears & in OD I get around 1800 RPM at 70mph (without a head wind). Yes the PCM has been corrected for the tires.
Wind, cargo, level road or not, all has an effect on my RPM's with the BL & SL & larger tires though.
With 31 x 10.5's I was getting 1700 RPM at 60mph but at that time I doubt the PO had the PCM corrected for the taller tires.
MPG's suck all the time with the lifts & SC etc - but it's fun getting there!
Sadly the gf lives 3.5hrs away at highway speeds & ... well lets just say she costs a bit to see lol. Sorry hunny, you're more than worth it!
(she reads BF from time to time)
And WOW Capt. I have to find that magical equation to find mileage like that... what's 5 miles per hour? In my case 17.5 mins... pfft for that mileage difference it's a no brainer!
Wind, cargo, level road or not, all has an effect on my RPM's with the BL & SL & larger tires though.
With 31 x 10.5's I was getting 1700 RPM at 60mph but at that time I doubt the PO had the PCM corrected for the taller tires.
MPG's suck all the time with the lifts & SC etc - but it's fun getting there!
Sadly the gf lives 3.5hrs away at highway speeds & ... well lets just say she costs a bit to see lol. Sorry hunny, you're more than worth it!
(she reads BF from time to time)
And WOW Capt. I have to find that magical equation to find mileage like that... what's 5 miles per hour? In my case 17.5 mins... pfft for that mileage difference it's a no brainer!
Last edited by Rottidog; 10-02-2012 at 10:05 PM.
#9
Nah, what tuner? It was tuned on the dyno, on the fly & he callibrated the tach, speedo etc to the dyno's readings. He put mathematical equations in the pcm so it made adjustments just as it were stock.
The SC only adds more air & the fuel trims, volume, spark duration etc had to be adjusted over the RPM range to get a proper burn to potential.
Check out the WoflPerformance link in my sig. I doubt he'd make any mistakes, expecially with it being on the dyno 4 times I think. We're all human though, who knows.
The SC only adds more air & the fuel trims, volume, spark duration etc had to be adjusted over the RPM range to get a proper burn to potential.
Check out the WoflPerformance link in my sig. I doubt he'd make any mistakes, expecially with it being on the dyno 4 times I think. We're all human though, who knows.