Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Swapping in taller 5th gear? (09 VW "City" Golf 2.0L 8v SOHC gas)

Rembrant · 10-27-2014, 04:25 PM

Hi Folks,

I'm looking into a 5th gear swap that would drop my highway speed engine RPM's by approximately 400.
My car normally runs right on 3000 RPM @ 100km/hr when in 5th gear. This gear swap would essentially drop my RPM's to 2600 for the same 5th gear speed.

I know you guys are old hats with all this stuff, so can anybody speculate as to how much benefit this would actually be...in MPG terms? 1 MPG? 2? None?

Any of the BTDT guys have any thoughts on the matter?

Thanks,
Rem

10-27-2014, 04:25 PM	#1 (permalink)
Rembrant EcoModding Lurker Join Date: Oct 2014 Location: Canuckistan Posts: 36 Thanks: 1 Thanked 7 Times in 5 Posts	Swapping in taller 5th gear? (09 VW "City" Golf 2.0L 8v SOHC gas) Hi Folks, I'm looking into a 5th gear swap that would drop my highway speed engine RPM's by approximately 400. My car normally runs right on 3000 RPM @ 100km/hr when in 5th gear. This gear swap would essentially drop my RPM's to 2600 for the same 5th gear speed. I know you guys are old hats with all this stuff, so can anybody speculate as to how much benefit this would actually be...in MPG terms? 1 MPG? 2? None? Any of the BTDT guys have any thoughts on the matter? Thanks, Rem __________________ ~You can walk a mile in another man's shoes, but then you're a mile away and you have his shoes~