Bone1

Really? I don't think so.

-10% fuel, + 6-8 degrees of timing @ 10" of vac or more.

Guess tune by Blundar, wait until I ever take the time to refine it

Tom-Guy

You misunderstand, follow my logic:

- It takes X amount of horsepower to maintain a highway cruise.
- Power is expressed in airmass consumed, so for a fixed power X there is a fixed airmass Y consumed.
- If you are lean burning you are not consuming all the air. Therefore, more air has to enter the engine for Y amount of airmass to be consumed.
- The same amount of fuel is consumed either way.

The problem with stoich-targeted closed loop systems is that you swing into the too-rich range. This is why you *theoretically* want lean burn. However, without a complementary ignition system, plug selection, and in some cases head design, there tends to be a big loss in bsfc as the mix gets leaner due to inefficiencies caused by lack of gasoline density/droplets being too far apart.

I've been up late wanking to SAE papers, it shows.

Bone1

Same amount of air enters, less fuel is used, but with a more complete burn, less of the BTU of the fuel is wasted going out the tailpipe or heating the water.

Stratofied for more complete burn.....less wasted out the taill pipe......but also NOx emissions go up.....which in my LIMITED knowlegde is the MAIN reason the cars of today aren't getting that good of mileage.

NACA/SAE = good paper to wipe your *** with

Tom-Guy

You can hate on SAE papers, but when they use a real life production engine and do mpg tests with different types of plugs and ignitions, the SAE paper may come back to hate on you.

ichbinsobose

I get noticeably worse gas mileage with ~15 then 16-17 even with light pops on off throttle. By like 2mpg.
Adding timing beyond stock only seems to help a little... I dunno. Really wish I had some more tuning skills and paraphenalia. For bmw tuning, bimmeforums.co.uk and the FI forum on bimmerforums.com
Between the two of those places I got 100% of my info.

Tom-Guy

Thanks, Yuriy.

I'm stillinterested in your translation skills, just been slack.

ichbinsobose

yea let me know when. There is a russian site I found that has a depository of like every factory bin for every odb1 car. Got all my honda/bmw bins and now I have been searching in vain to find it again. lets just say that ISPs and and KGB make websites go bye bye like 3x a week in the motherland. it sucks. I cant even get phat ---- from russian-town.com half the time. :P

Tom-Guy

Here we are.

http://chiptuner.ru/

If you think it's a goldmine I can run a web spider on it. I'm looking for info on offbeat tuning, especially reflashing OBD2 stuff.

Tom-Guy

Haha, I just checked your BF and BFuk links. It's funny to see peluca all over the face of every DIY hacking forum on creation.

ichbinsobose

damn man, they got some cool ---- on there... nothing I currently need, (I have to read VERY slowly through it, the use a lot of language that I was not familiar with when I left Russia in like 96) but they have a lot of random garbage on there, they focus a lot on poor people cars avail in eruope but the dudes on there seem to know their ----.

I recommend you sign up to their forum, grab a solid whole site translator and go to town. Planning on tuning some daewoo's? :1