So i do quite some highway driving during the week. my question is how does the R still get mid twenties MPG when the rev is at 4.5k-5k. My intial thought was higher the rev lower the gas milage.....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by John 07 &raquo;</TD></TR><TR><TD CLASS="quote">So i do quite some highway driving during the week. my question is how does the R still get mid twenties MPG when the rev is at 4.5k-5k. My intial thought was higher the rev lower the gas milage.....</TD></TR></TABLE>

This was discussed and thoroughly covered in a stock FD vs 4.9 FD thread. It really depends on the speed and load along with the gearing to make it so efficient. I can't remember the thread or exact numbers to give you an idea but it was a matrix. Higher speed doesn't always equate to more fuel consumption.

HTH.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by John 07 &raquo;</TD></TR><TR><TD CLASS="quote">So i do quite some highway driving during the week. my question is how does the R still get mid twenties MPG when the rev is at 4.5k-5k. My intial thought was higher the rev lower the gas milage.....</TD></TR></TABLE>

while traveling at constant throttle your car is in closed loop. so ecu readjust a/f until its 14.7 regardless if its 3k or 5k..

 

im going to search for this thread.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by John 07 &raquo;</TD></TR><TR><TD CLASS="quote">im going to search for this thread.</TD></TR></TABLE>

https://honda-tech.com/zerothread?id=1567957

Happy reading

 

^^^ good info! still reading...

 

lol thanks Ive been searching for that topic.