View Single Post
Old 05-26-2020, 04:39 AM   #49 (permalink)
GreenTDI
EcoModding Apprentice
 
GreenTDI's Avatar
 
Join Date: Apr 2020
Location: Belgium
Posts: 228

GreenTDI - '11 Skoda Fabia Estate R3 1.2 CRTDI
TEAM VW AUDI Group
Diesel
90 day: 65.02 mpg (US)
Thanks: 54
Thanked 93 Times in 69 Posts
Quote:
Originally Posted by California98Civic View Post
I'm glad you found a solution to the turbo problem. It does not sound like you need to do 100km/hr from what you wrote. In 5th gear and 1800 RPMs how fast would be be going? At 2000 rpms? Your FE would be higher than at 100km/hr, surely, which is good for your 90 mpg goals, no?
You're trying to get me to raise my goals, aren't you?
Maintaining a slower speed will certainly give me an advantage. 100 km/h, for me it's rather a psychological limit to not get in the way of big trucks ...

Ratios in 5th gear:

2000 rpm = 105 km/h (66 mph)
1900 rpm = 100 km/h
1800 rpm = 95 km/h
1700 rpm = 90 km/h (56 mph)
1600 rpm = 85 km/h

1500 rpm = 80 km/h (50 mph)


From my experience I know that the green zone is the engine's "sweet spot". Higher and consumption increases exponentially. Lower, the load on the engine becomes too great.
If I take into account that the minimum engine speed is 1800 rpm for the regeneration cycle, 95 km/h of 59 mph should be better of course. It's not a huge difference with the speed I'm maintaining now. BUT if I can stay behind a lorry - they're limited between 52 and 59 MPH in Europe - that will increase my MPG even further.
__________________
Skoda Fabia Estate R3 1.2 CRTDI
See my thread: https://ecomodder.com/forum/showthre...mpg-38318.html

Last edited by GreenTDI; 05-26-2020 at 04:52 AM..
  Reply With Quote