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Old 01-11-2008, 06:09 PM   #8 (permalink)
cfg83
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bestmapman -

Quote:
Originally Posted by bestmapman View Post
My son has a 07 Aveo 4 dr. Your right the 5th gear is way too low. I took the car last Fall to Salt Lake City from Cincinnati, OH. I averaged 38 MPG going 70-75 all the way. I feel if the car was geared taller it would get very respectable numbers.

I liked car other than that. Yea, it is a small car. I had a Metro from 1993-2000 and it is put together nicer than my 93 Metro IMHO.

Also the price was right. He bought the car out the door for $10,500 air included. This included $800 discount for my GM card, no trade and tax and registration. The Yaris was about $4000 more out the door where we live. The Aveo also had the 100,000 drive train warranty.

The hatchback would be a great candidate for a Basjoos type of aeromod if you could get a taller 5th gear.
In 2006 I was in Europe for work and I rented a Chevrolet Kalos, which is the European Aveo. I didn't push the car to any limits, but it seemed fine on the freeway to me. There is the possibility of a 5th gear swap IF the transmissions are otherwise physically the same.

Now for some googling ...

Chevrolet Kalos model comparison spreadsheet (PDF)
http://media.gm.com/gb/chevrolet/en/...d_kalos_en.pdf
Quote:

5 Speed Transmissions :
1st/2nd/3rd/4th/5th
3.416/1.950/1.280/0.971/0.757
3.545/1.952/1.276/0.971/0.763
Soooooooo, there is a different 5th gear. I have no idea, however, if these are swappable gears. I am just looking at the ratios. Also, I can't tell what the benefit would be. The ratio difference looks negligible to me.

Now, here's an enticing post. There might be an even better Aveo 5th gear lying around :

Topic: gear ratios
http://aveoclub.proboards26.com/inde...ead=1127678655
Quote:
2004-2007 D16 Manual Trans

Final Drive Ratio (1.4L SOHC)
4.176:1
Final Drive Ratio (1.4L DOHC)
3.944:1
Final Drive Ratio (1.5L)
3.722:1

1st Gear Ratio
3.545:1
2nd Gear Ratio
1.952:1
3rd Gear Ratio
1.276:1
4th Gear Ratio (1.4L DOHC/1.5L)
0.971:1
4th Gear Ratio (1.4L SOHC)
0.892:1
5th Gear Ratio (1.4L DOHC/1.5L)
0.763:1
5th Gear Ratio (1.4L SOHC)
0.707:1

Reverse Gear Ratio
3.333:1

2004-2007 Y4M Manual Trans
Gear Ratio - 1st
3.417
Gear Ratio - 2nd
1.950
Gear Ratio - 3rd
1.280
Gear Ratio - 4th
0.971
Gear Ratio - 5th
0.758

Gear Ratio - Reverse
3.273
Final Drive Ratio
4.105
If the above information is accurate, then it *appears* that if you have a D16 manual transmission, there is the possibility of swapping the SOHC 5th gear into a DOHC Aveo. I assume that this would result in a 7%+ drop in RPMs in 5th gear (0.707/0.763 = 0.926; 1 - 0.926 = 0.073 => 7.3%).

CarloSW2
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