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syncm
Amazing stuff. Sounds like it's angry hehe. |
03/12/2010 - 17:19:29 |
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DANJULLMANN44
Absolutely amazing. I love this clip. |
03/06/2010 - 15:21:23 |
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muzeitgeist
@ corotor12345
According to the Formula 1 official rules:
"Each cylinder may have just one fuel injector and ignition must be by a single spark plug."
I think they use a process called microstepping to control injector solenoid pulses allowing extremely precise movement without any mechanical complication.
Also varying the fuel pressure would allow a significant amount of control over how much fuel is sprayed per same duration. |
03/04/2010 - 18:20:10 |
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pacman599
thats electronic injection for ya! :) |
03/02/2010 - 21:10:34 |
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gerfall
just came to this engine.. |
03/02/2010 - 20:50:10 |
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toaster1971
Wicked. |
02/26/2010 - 22:53:54 |
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Iblis04
A FINE ENGINE!!! |
02/26/2010 - 06:28:27 |
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corotor12345
@suprchrgr
No. That nowadays they run a cheaper, more user-related commercial type gasoline due to the petrol brands wanting actual links from their commercial fuels to their race fuels is true... but that it automatically means that Grand Prix cars run on unleaded gasoline is just pure nonsense. |
02/19/2010 - 03:57:52 |
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suprchrgr
It's unleaded gasoline, dude...... |
02/18/2010 - 05:45:01 |
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pat66ge
No secondary injectors. It is only necessary for road vehicles when the throttle is quasi closed. Not really necessary in fact. Must of motorcycles don't have secondary injectors also racing vehicles. |
02/05/2010 - 10:11:14 |
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Bettelstein
Benzinvernichter |
02/03/2010 - 18:36:17 |
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corotor12345
@corotor12345
Well, precise enough injectors, can work at WOT (Wide Open Throttle), fully open, with enough control as to not over inject or under inject fuel. I could bet a considerable amount of money when I say that F1 engineers have probably developed good enough injectors, electronically operated bypass valves, and precision fuel pumps as to use the injectors at full duty cycle (100% capacity).
I also believe there are secondary injectors farther down. =) |
02/03/2010 - 04:31:41 |
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gfr1980
Surely you are right,i´m mechanic and i understand the EFI system,but of normal engines.Maybe on f1 engines the function is different,you say the injectors can remain open?What is WOT?Sorry for this question.Greetz. |
02/01/2010 - 18:09:48 |
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corotor12345
@corotor12345
- Maintains a turbulence free, laminar flow
- Delivers fuel parallel to the flow
- Keeps fuel rail compact
- Allows for more effective TB placement
And that's it man. Hope to have been of help. And yes, this is also only my opinion based upon lots of research and reasoning. I'm no guru either... in fact I'm 17 years old. =) |
02/01/2010 - 02:51:23 |
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corotor12345
@corotor12345
The fuel is injected liquidly, and vaporizes as it comes into contact with the air. The fact that the fuel rail is far away from the engine ensures that the fuel is cooler than usual, and can handle taking that heat away from the air. It's not so much to prevent detonation, as it is to aid in raising the density of the intake charge. So the injector placement basically does this:
- Keeps the fuel cool.
- Gives Fuel more time to mix
- Allows for denser intake charge.
(continued) |
02/01/2010 - 02:47:20 |
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corotor12345
@corotor12345
although injectors rarely operate above 85% duty cycle so I can see your point. |
02/01/2010 - 02:42:25 |
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corotor12345
@svandamme76
Ok. Ima try to explain from the beginning:
F1 engines work at high RPM, high compression ratios, high mean piston speeds and high intake charge speeds.
The fuel is limited by FIA, therefore it's no nitromethane based fuel... nor does it have much benzene content or anything. It's a relatively high octane, chemically enhanced fuel. But that's about it. So under load, the engine heat and compression can cause detonation, even with spark advance and whatnot. (continued) |
02/01/2010 - 02:40:39 |
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corotor12345
@gfr1980
no... you probably don't have a full understanding of EFI. the injector doesn't inject once per combustion. It injects the dose of gasoline it knows it can inject over a period of time. at WOT, the injector can remain open if necessary. |
02/01/2010 - 02:32:34 |
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gfr1980
I asked because the injection time is extremely short at 19000rpm,therefore the fuel pressure has to be much higher than the pressure of normal cars. |
01/31/2010 - 17:43:46 |
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svandamme76
i kinda doubt it. They don't have blown engines in F1.
They take in ambient temperature air and at most they get some minimal pressure due to ram air effect. So the air is not heated, and hardly needs cooling
I ask myself, how would it cool? the fuel evaporation ?? It's not like they are injecting liquid gas.. That would cool due to liquid > gas transition... I doubt much charge cooling is to be found that way, probably negligible..
but, i'm no F1 engineer, so i could be wrong... |
01/31/2010 - 17:17:45 |
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corotor12345
@gfr1980
Well.... that's difficult to tell. We could assume they work at 40 to 45 PSIG, which is a universal value for EFI systems. Although if you want I can estimate the size of each injector based on that pressure too. But there really is no way to tell. |
01/31/2010 - 16:41:20 |
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corotor12345
@svandamme76
But you have to admit, he's partially right about the placement having a charge cooling effect. Although I agree with you, It's mostly about intake charge velocity. But the fact that they're facing directly into the TB's, and that they do not generate turbulence in the laminar flow also has some weight to it. Engineering is an integral thing, chances are, whatever changes you make will have more than one effect, good or bad. |
01/31/2010 - 16:38:42 |
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ownagerRAT
0-200kmh 4,5 sek bitches !! |
01/31/2010 - 10:23:13 |
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LaughedoutLoud01
@procesorr
8sec? more like 6 |
01/30/2010 - 15:43:00 |
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sothatswhathapppened
ahh i see, well thank you for explaining that to me. |
01/26/2010 - 20:10:48 |
