Engines.. Apples To Apples....

[Nemasys]

Having a 6th gear would make no difference since gear 1 thru 5 would be significantly shorter ratio then they are now, making the 6th gear pretty much the same as the current 5th gear.

You will gain acceleration thru the gears but the drive ratio in 6th will still make the engive rev over 3k at highway speeds.

The only way to change that is by modifying the ratio of 5th gear so that its way longer then the others, then you could achieve a 2k or whatever you want rpm at highway speeds.

[xintersecty]

Having a 6th gear would make no difference since gear 1 thru 5 would be significantly shorter ratio then they are now, making the 6th gear pretty much the same as the current 5th gear..

I like driving at 80 MPH at highway speeds. The car settles very nicely there (actual speed maybe 76-7. It's turning 3000 RPM at that speed. I would leave all the existing gears and put in taller 6th gear. So dropping down 5th will "peak" the power for passing.

When I drive around 70 I can achieve better than 34 MPG, over that speed the wind puts my millage at 31-32 MPG. I am hoping that once I do my suspension change and drop the car and inch or two I can achieve at MPG gain. The frontal surface area has not changed but it should reduce the ground interference.

So given the power would having a 6th gear really improve the millage. Yes the engine is turning slower but does it generate enough power to overcome wind resistance?

[dlc70]

both mine are hatches i like my 2010 the best its a looker for an aveo ,,one day i was at napa and a gal droppd over her harley looking at it driving by ,,,im geting ready for some funny gas nothing extreme just a 70 shot wet kit ,,im gonna plumb my purge out that chintzy lookmn fender vent

[dlc70]

guys if we did hav 6 gear oh my gas mileage would be super especially in first gen cars ,,imagine 50 mpg

[dlc70]

u can buy an rpm activated switch for the drive by wire or use a switch under pedal for nos at wot ,,,
i used this rpm deal in mny gt it worked sweet ,,i think ill try it again on the aveo,,that way its added insurance if ud mis a gear or something