You are right, my brain is a lot smaller than yours, my techinical knowlage is very very basic and your level of aero and mechanical knowlage is amazing.godlameroso wrote:It means you demand too many answers to your questions, and don't respect that people have a right to privacy, as well as there being topics that are sensitive and not something they're at liberty to discuss. Plus if they give you all the answers you'll never train that brain of yours to have any sort of imagination. Part of the fun is trying to figure things out.
Don't get all melancholy over constructive criticism, let's put it this way, I consider someone a genius when they can learn from their own mistakes. Just from this point of view it should be painfully obvious that there's not a lot of geniuses, there's people that can amass a large amount of information, but it means squat unless they can put that knowledge to work.GoranF1 wrote:You are right, my brain is a lot smaller than yours, my techinical knowlage is very very basic and your level of aero and mechanical knowlage is amazing.godlameroso wrote:It means you demand too many answers to your questions, and don't respect that people have a right to privacy, as well as there being topics that are sensitive and not something they're at liberty to discuss. Plus if they give you all the answers you'll never train that brain of yours to have any sort of imagination. Part of the fun is trying to figure things out.
But i would like to suggest something....you chose a racing car that you want and a race track that you want i i give you 10 secs advandage and 10000€ if by the end of lap 1 you beat me?
How does this sound?
I send you my personal data in box now?
No i am not afraid of Merc....Alonso compensates for 47.8 bhp.....godlameroso wrote:It does, people discuss things, you didn't get all those status points for nothing. I guess you saw the rumors about how strong the Mercedes engine is and it's cast doubt over what Honda can do to match that. I'm anxious to see as well, but hey, 3rd time's the charm.
Even if Wazari is a fake... It was fun discussions. Lol.GoranF1 wrote:I have no idea what you just saiddren wrote:Who cares? You seem overly demanding of these people. Just take what they give at face value, like anyone else on the internet.
No, because you constantly are out of operating range. The puleses vary between zero and too much. Even is always better in terms of efficiency. Always!godlameroso wrote:Bringing the odd vs even fire debate back. Even is better for the turbine since the pulses are evenly spaced, equal intensity. Can odd fire which has exhaust pulses of different intensity be as effective, if you were able to maximize the amount and intensity of the strong pulses?
In other words can an engine with say 4 strong pulses and 2 weaker pulses make the same if not more power than 6 even pulses that are not as strong as the 4 but stronger than the 2?
Here's another good one. Again PhD-wordy (they always make them start with the book of Genesis and explain everything ...) but good stuff on blowdown etc.Brian Coat wrote:From time to time we talk about the unsteady flow challenges of the turbocharger on here..
I stumbled across this Phd thesis from Imperial (where they have a very nice unsteady turbo test facility). It's about modelling these effects, which I think is interesting.
https://spiral.imperial.ac.uk/bitstream ... Thesis.pdf
Glenn, do you mean turbine efficiency?glenntws wrote:No, because you constantly are out of operating range. The puleses vary between zero and too much. Even is always better in terms of efficiency. Always!godlameroso wrote:Bringing the odd vs even fire debate back. Even is better for the turbine since the pulses are evenly spaced, equal intensity. Can odd fire which has exhaust pulses of different intensity be as effective, if you were able to maximize the amount and intensity of the strong pulses?
In other words can an engine with say 4 strong pulses and 2 weaker pulses make the same if not more power than 6 even pulses that are not as strong as the 4 but stronger than the 2?
Yes I mean turbine efficiency. The Problem (which may not be obvious) is that the turbine efficiency is directly linked to MGU-H power. While I get your point, that the pumping losses could be reduced by odd firing or something like that, I can tell you that the power you lose with an ineffective turbine is higher than the eventually slightly bigger exhaust pressure.Brian Coat wrote:Glenn, do you mean turbine efficiency?glenntws wrote:No, because you constantly are out of operating range. The puleses vary between zero and too much. Even is always better in terms of efficiency. Always!godlameroso wrote:Bringing the odd vs even fire debate back. Even is better for the turbine since the pulses are evenly spaced, equal intensity. Can odd fire which has exhaust pulses of different intensity be as effective, if you were able to maximize the amount and intensity of the strong pulses?
In other words can an engine with say 4 strong pulses and 2 weaker pulses make the same if not more power than 6 even pulses that are not as strong as the 4 but stronger than the 2?
I am not saying the huge pulses are best (I have no data) but isn't the goal to maximise "MGU-H_Power" minus "ICE_exhaust_pumping_power" , not just turbine efficiency?
No one. It's impossible just because of the rules. 3 crankthrows are allowed but with 90° bank angle you have uneven space between the firings. For even, you would need 30° journal offset.godlameroso wrote:So who's using even fire in their engine?