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Old 11-16-2011, 02:04 PM   #9 (permalink)
Vekke
Mechanical engineer
 
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Join Date: Jan 2009
Location: Kitee (Finland)
Posts: 1,272

Siitin - '98 Seat Cordoba Vario
90 day: 58.56 mpg (US)

VW Lupo 3L --> 2L - '00 VolksWagen Lupo 3L
Diesel
90 day: 104.94 mpg (US)

A8 luxury fuel sipper - '97 Audi A8 1.2 TDI 6 speed manual
90 day: 64.64 mpg (US)

Audi A4B6 Avant Niistäjä - '02 Audi A4b6 1.9tdi 96kW 3L
90 day: 54.57 mpg (US)

Tourekki - '04 VW Touareg 2.5TDI R5 6 speed manual
90 day: 32.98 mpg (US)

A2 1.4TDI - '03 Audi A2 1.4 TDI
90 day: 45.68 mpg (US)

A2 1.4 LPG - '02 Audi A2 1.4 (75hp)
90 day: 24.67 mpg (US)
Thanks: 270
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Quote:
Originally Posted by Daox View Post
Sorry, you're right Vekke. I overestimated the horsepower output of the Chevette engine. With 51 hp and the .45 Cd I'm sure you're already running fairly well loaded at 70 mph.
No problem. I did not even check the power . I would think even thought you would have had 200 hp the gain would be minimal if you make the pushes from 50 to 70 mph. Speed will slow down very fast from 70 to 60 with cd 0.45, even my lupo does. The little gains from 60 to 50 mph would have been lost many times in 70 to 60 drop.

I havent even tried yet with my lupo to P&G from 55 to 67 mph to get the 62 mph average because I know it will just disappoint me. There just aint enough power to make the car fly with about 1000 kg and cd about 0.27 at the moment. Need to first take some weight off and chip for more power and make the cd better. After that it will do the same as now from 80 to 95 km/h about 45 to 55 mph what I do most at the moment.

With that 45 tonn truck I noticed very clearly if you try to push in wrong places you will eat the savings you have gained in successful P&G made before. so get a gauge that shows distance from sea level etc.
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