b1gredek

very curious to know what rpms are your cars running at when cruising at the speed of 80..... wanted to compare if others were the same as mine,,,, also the differnce in rpm from a gs400 to a gs300....... mine is right below 3200 at 80 in my gs300

DetMich1

Well, at 4,000 RPM I am at 120 mph. 80 MPH I am sitting just below 2700 RPM

b1gredek

maybe this explains why the gs4 gets pretty good gas mileage,,, your sitting at 2700 and i am at 3100

GRAND_LS 4

iTrader: (2)

Thanks to the gearing. I think the GS4, and LS4 are pretty similar at the speed. Except the LS4 has 3.27's.

e-man

Yep, right around 2,700 rpm at 80 mph.

GQD_GS4

me too!

rheiy

I'm at 3000 @ 80 but that's with a 3.76 Was 2700 before the 3.76

rominl

iTrader: (4)

gs400, with stock gearing, about 2700 to 2800 rpm at 80mph
gs400, with 3.76 gearing, about 3000 rpm at 80mph

gs300 i *think* the rpm is a tad higher

e-man

At 80 mph, my rpm's were a hair above 2,600 (not 2,700 like I said above). The rpm needle was still on the hash mark, but it was more to one side than the other. I would have to think that there are some variables that figure into this number (wheel size, head wind, road incline, etc.).

bitkahuna

iTrader: (20)

I believe I used to be at 2650 at 80 (GS400). Now with 3.76 gearing I'm at 3000.

TeeLex

iTrader: (24)

3000 rpm at 80 mph speedo reading. Of course this is the speedo reading, but I'm really going 83-84 mph because of my 20 inch wheel/tire combo being approximately 5% larger in diameter than the stock wheel diameter. Oh, I also have the TT Torsen LSD 3.76 rear end. Before the 3.76 I was doing 2650 rpm at speedo reading of 80 mph.

b1gredek

thanks for all the replies,,, now i have another excuse why the 300 eat up so much gas compared to the v8's

joshoowa

iTrader: (1)

haha yep thats why i only go about 60mph on the freeway saves me gas

edit:

oh and cruise control is a must!!!! saves u a ton of gas

rominl

iTrader: (4)

well, it's a high rev engine, what can you say

blacksc400

iTrader: (4)

yeah!! My is300 eats more gas than my GS4 too!!