Teddy Posted July 5, 2004 Report Posted July 5, 2004 Hello all readers I have a question with regards to fuel economy. Which scenario would use less fuel... ( Stock Ke70 Going up hill - Running 90% Bp Ultimate ) 2nd Gear @ 4,000 Rpm - 50 kmh - Foot 2/3 to floor OR 3rd Gear @ 2,600 Rpm - 50 Kmh - Foot to floor ? Thanks... Quote
Medicine_Man Posted July 5, 2004 Report Posted July 5, 2004 I would assume lower revs = better fuel economy in any situation.. Quote
Super Jamie Posted July 5, 2004 Report Posted July 5, 2004 i would say second gear. you've going to be putting the engine under less vacuum, so it's going to draw less air into the motor, hence less fuel. the engine is also about 10% more volumetrically efficient at 4000rpm than 2600rpm, so for the fuel you DO use it's going to make more power at ther higher of those two rpm than the lower Quote
Teddy Posted July 5, 2004 Author Report Posted July 5, 2004 Ahh ok thanks !!!! When ever i drive around town, I'm always popping it into a lower gear and making it rev around the 2 grand mark (or as low as i can do it with out making the car struggle ) Sweeet :)! Quote
Super Jamie Posted July 5, 2004 Report Posted July 5, 2004 try driving around one way on a tank of fuel, note how many km you get and how many litres you put in to refill it, then try the other way and do the same again this is where a vac gauge becomes useful Quote
Super Jamie Posted July 6, 2004 Report Posted July 6, 2004 80 bucks to ivan, a timing cover gasket, and a day, easy :) Quote
Super Jamie Posted July 7, 2004 Report Posted July 7, 2004 i understand this, my tappets have been rattling for a couple of weeks :) i've almost done 5000km on this engine, time for synthetic oil and holley carb and RPM CITY WHEE Quote
demuire Posted July 7, 2004 Report Posted July 7, 2004 Haha, I've been so intending to do stuff on my car(s), but so CBF... Quote
Medicine_Man Posted July 7, 2004 Report Posted July 7, 2004 Might go get a cam ground for him as a birthday present :) Quote
Teddy Posted July 7, 2004 Author Report Posted July 7, 2004 for who? who ever it is - lucky person lol Quote
Teddy Posted July 8, 2004 Author Report Posted July 8, 2004 (edited) lolol *Ae71 Cross member Cough* ... i really need to get that cough fixed... *spelling fairy was here* Edited July 8, 2004 by Grimwolge Quote
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