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Some questions
Posted:
Mon May 12, 2014 1:39 pmby KielEire
Hi all.
Just a few questions for you all.
Emissions: how is it calculated, what does it mean, how to make it better, and what would be average for a mid-line engine?
How are smoothness,loudness, and responsiveness calculated and factored to our engines?
How would you lower the emission output of an engine?
Re: Some questions
Posted:
Mon May 12, 2014 1:41 pmby USDMFTW
triple post much?
Emissions is just a generic calculated number, and to lower emissions, use cats or low the amount of fuel the engine uses/increase effeciancy.
Re: Some questions
Posted:
Mon May 12, 2014 1:42 pmby Daffyflyer
Yup, main influences on it are fuel system type, fuel mixture, use of cats, but lots of other things tie in too like piston type, compression ratio etc.
Re: Some questions
Posted:
Mon May 12, 2014 1:44 pmby Daffyflyer
Smoothness is mainly based on engine configuration (I6 is the best there) but also on lots of other stuff, loudness is mostly about exhaust design, responsiveness is a lot about fuel system, throttle count, fuel and timing adjustment etc.
Re: Some questions
Posted:
Mon May 12, 2014 1:45 pmby Jakgoe
Yes, please delete the other two posts.
Also, this:
Engine GuidePage 30 should have all the answers.
Re: Some questions
Posted:
Mon May 12, 2014 1:54 pmby Jakgoe
KielEire wrote:What would be average for a mid-line engine?
Depends on the year. Any specific year in mind?
Re: Some questions
Posted:
Mon May 12, 2014 2:26 pmby KielEire
Sorry I posted that from my phone, I was having some issues.
For the year, I was thinking like a modern, 2014 model. I'm just trying to see if my engines are up to par.
Re: Some questions
Posted:
Mon May 12, 2014 6:04 pmby USDMFTW
KielEire wrote:Sorry I posted that from my phone, I was having some issues.
For the year, I was thinking like a modern, 2014 model. I'm just trying to see if my engines are up to par.
Just ss one and post it here.
Re: Some questions
Posted:
Tue May 13, 2014 12:18 pmby 07CobaltGirl
My response got deleted with the other post.
Re: Some questions
Posted:
Tue May 13, 2014 12:44 pmby Daffyflyer
07CobaltGirl wrote::cry: My response got deleted with the other post.
Oh, whoops, I didn't realize the other ones had replies when I nuked them. Sorry!
Re: Some questions
Posted:
Tue May 13, 2014 3:01 pmby KielEire
I guess my question is what is the general emission rating to strive for? I know higher is better, but compared to say, a Mazda 3, VW Golf, BMW 228, or Subaru WRX, what would be an acceptable level?
Re: Some questions
Posted:
Tue May 13, 2014 3:05 pmby 07CobaltGirl
No worries. I made my reply to the other one while everyone else replied to this one. I guess I just picked the wrong one to reply on! haha
Re: Some questions
Posted:
Tue May 13, 2014 4:00 pmby Slim Jim
KielEire wrote:I guess my question is what is the general emission rating to strive for? I know higher is better, but compared to say, a Mazda 3, VW Golf, BMW 228, or Subaru WRX, what would be an acceptable level?
Right now, there are no emissions ratings to strive for. In the absence of regulations, it can be pretty much anything.
A lower number is better, though. You can't compare automation's emissions number with any real life numbers like % of CO or ppm of HC/NOx. The best you can do is re-create a real-life engine as best you can in Automation, then make your own engine with a better emissions number.
Re: Some questions
Posted:
Tue May 13, 2014 4:38 pmby KielEire
My company has 3 lines of engines.
Emerald-Economy(I try to keep emissions at least 20%.)
Eire-Standard(I usually do not bother tweaking unless it is under 15%)
Gaelic-Performance(I don't even bother looking
)
Is this a good baseline to stay with?
Re: Some questions
Posted:
Tue May 13, 2014 4:49 pmby OCAdam
You sure that's emissions and not economy?
As for economy, I shoot for at least 15% with my 80 RON economy engines, and over 30% in the regular economy cars. As for emissions, I usually have around 300 to 400, IIRC.