does having high comp make a noticable difference in mpg's?

 

12.9:1 and gets 25 mpg or more on highway. thats cruising with itb's at around 4100 rpm. if i beat it 10 mpg

 

ok so i have nothing to worry about,
2 newbie questions
why would the individual throttle bodies have an effect on the mpg?
and why do you drive it at 4100 rpm?
thanks

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by otakueric &raquo;</TD></TR><TR><TD CLASS="quote">ok so i have nothing to worry about,
2 newbie questions
why would the individual throttle bodies have an effect on the mpg?
and why do you drive it at 4100 rpm?
thanks</TD></TR></TABLE>


They would affect mpg because they allow more airflow, and when combined with more fuel, leads to more power.

 

4100 RPM....

Well, I'm at 80 mph and 4000 RPM with my GS-R Tranny... so I'm guessing that 4100 RPM would be that guy's normal highway cruising speed, probably on a more closely geared tranny.

 

4100 is around 80 mph. jdm h22 trans

 

wow i need to be at like almost 5 grand to be 80 :/

 

and that was 25mpg on the highway, how much do you get in the city?
ive been getting like 20-22mpg in the city and my car has only 11.5:1 comp

 

i wopuld get 10-17. i like driving my car

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by meanEG &raquo;</TD></TR><TR><TD CLASS="quote">4100 is around 80 mph. jdm h22 trans</TD></TR></TABLE>

I am at 4700 at 80 with my J1 trans. I wish I could cruise that low, 4100 RPM comes only going 70 MPH.