todays engine makers objectives?

Most here do so troll another group.

Price is probably their main motivation. Followed by how difficult can we make it for DIY servicing. Technical matters like power, economy and emissions are mostly technicalities they have can easily tailor for the market it's designed for.

Mark

Emissions is the difficult bit, emissions with decent ecomy more so, engineering things to make life hard for the DIY market's not really worth the effort, they don't have a large part of the dealer service market.

I think you should answer your own homework questions!

homework? trolls? what did i say to deserve that?

i can imagine what the body designers are told to do, make a design incorporating all the shapes and lens features currently in style which will make the previous model look old and score high euroncap ratings.

but with engines its not that clear. i reckoned ppl here might be in the know or have seen engines evolve from year to year that they have figured it out. thats all

Well it did sound very much like the sort of question that would be set as an assignment on a vehicle technology course!, and is certainly nothing to do with recreational car maintenance.

I've said this before when reading postings such as this. My generation are deeply sorry for the abysmal English standards taught in schools. To the OP: I know you are confused why we react this way. Perhaps this may enlighten you (but probably not).

1. Childish name (probably American by the gas reference).
2. No use of capital letters and text speak. How can anyone start a sentence without a capital or a paragraph with "but".
3. Origin google groups

Mark

"Mark" gurgled happily, sounding much like they were saying:

If you're going to lecture him, double-check punctuation...

This question can be turned around by looking at directions in the market; where is the state of the art and who gets the wooden spoon. The Americans tried to make 4 cyl 2Litre engines for Chrysler cars, but couldn't quite get up to European standard. The engines were gruff and had no bottom end torque. F1 engine technology is hardly relevant for road cars. An F1 engine revs at 19000 rpm, require a complete rebuild after every race.

ide quoted text -

emissions...i guess thats why some manufacturers are trying to cheat with hybrids,instead of further developing the otto cycle. i remember a few years ago when a toyota ad claimed they had made a car so clean (not hybrid, a conventional petrol engine ) it made less emissions on they road than your average car sitting on the driveway switched off!

you need to pop open a beer and relax mate(am i allowed to call you that?), this is a friendly usenet newsgroup, not a courtroom

so theres another objective, making an engine that could potentially be sold in more than one market, maybe to other manufacturers too.

IIRC in a polluted environment (inner city type place) it did manage to burn/filter enough of the pollutants that what came out of it was cleaner than what went in.

Think all cars with cats. reduce *some* of the pollutants. But increase carbon dioxide - which is the villain of the peace at the moment.