I didn't think about the VVT. That should definately help. Maybe the 23/29 figure could be considered a worse-case scenario, and hopefully it will be better. I'll buy regardless of the economy, but the better it is the nicer it will be!brentil said:We also have to take into account that this new engine is the first ECOTEC with VVT. It's supposed to help add power and get better fuel economy. So in reality we could end up with more power then the 2.2L ECOTEC, but also end up with the same fuel economy.
However the Solstice has things that will probably end up eating into the fuel economy. If it has larger brake discs those will greatly inrease rotational inertia. The much larger 18" stock wheels will as well. And like Fformula88 mentioned, more aggresive gear ratios.
I wonder how much of a 'hit' the fuel economy takes by having the top down on a convertible? I imagine the Solstice will spend more time with the top down than up.brentil said:<snip>... However the Solstice has things that will probably end up eating into the fuel economy. If it has larger brake discs those will greatly inrease rotational inertia. The much larger 18" stock wheels will as well. And like Fformula88 mentioned, more aggresive gear ratios.
Unfortunately we're not that luckyKbene said:Lets not forget the roadster should be a bit lighter than a Saturn sedan and hopefully a bit more areodynamic. These issues should help offset the higher gearing and help fuel economy.
brentil said:I got them fropm cars.com, which is usually fairly reliable. But I'm not going to argue with what Saturn.com has on their website.
That makes me feel better, was wondering why the ION RL was weighing so much less then the Solstice.
I have no clue, because they got the Cobalt and Cobalt SS weights correct. Usually they're a great source for information, guess I just hit one of the oddball typos.Fformula88 said:That is strange. I wonder where they got that low figure from. I did a quick google search and a couple magazine reviews that came up also listed the curb weight over 2900 lbs.
Aerodynamics do have an impact even at legal speeds. Not a highly significant impact, but it does have an effect. Your certainly not going to see a multiple MPG difference at street legal speeds, but if you kept track you may see a noticeable difference.airbalancer said:I do not think ,top up or down will make much of a difference with mileage because the speed on a nice windy road will not that great. It not like you are getting this car to go on a drag strip
That would be awesome to do! If only I had a true model to send over for the test!airbalancer said:My son is in areospace engineering, hopefully is last year.
It would be nice to send him some models to put into the wind tunnel. So they could check this out