Honda Power Unit Hardware & Software

All that has to do with the power train, gearbox, clutch, fuels and lubricants, etc. Generally the mechanical side of Formula One.
AlainProst
AlainProst
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Re: Mclaren MP4-30 Honda

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Anybody know why the Honda PU has a lawnmower sound ??? :lol:

Seriously, is it the V6 thermal engine the cause of that ? It is especially in the downshift that burping noise can be heard. You also need heard the engine when the car moves away, the sound is really especially and little bit sugglish.

timbo
timbo
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Joined: 22 Oct 2007, 10:14

Re: Mclaren MP4-30 Honda

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AlainProst wrote:Anybody know why the Honda PU has a lawnmower sound ??? :lol:
Ferrari too. Both seem to shut down cylinders at partial throttle.

Thefuelman
Thefuelman
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Joined: 23 Feb 2015, 11:10

Re: Mclaren MP4-30 Honda

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timbo wrote:
AlainProst wrote:Anybody know why the Honda PU has a lawnmower sound ??? :lol:
Ferrari too. Both seem to shut down cylinders at partial throttle.
these V6 turbo hybrids will never sound nice but as they go I like the sound of the ferrari most. Its the only car where you hear the actual sound of an engine. I have now idea why the Honda sounds so damn bad. Like its misfiring badly on entry into corners and on half throttle.

watch the video from 1:34. This is what i'm on about. I can't help but think if you have a race car that is this slow and sounds like an old misfiring Honda Civic isn't it best to keep the promotional films to a bare minimum?

https://www.youtube.com/watch?v=xwDCOD7OEmE

radosav
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Joined: 05 Feb 2012, 20:46

Re: Mclaren MP4-30 Honda

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timbo
timbo
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Joined: 22 Oct 2007, 10:14

Re: Mclaren MP4-30 Honda

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Thefuelman wrote:I have now idea why the Honda sounds so damn bad. Like its misfiring badly on entry into corners and on half throttle.

watch the video from 1:34. This is what i'm on about. I can't help but think if you have a race car that is this slow and sounds like an old misfiring Honda Civic isn't it best to keep the promotional films to a bare minimum?

https://www.youtube.com/watch?v=xwDCOD7OEmE
Remember this?

Honda's doing the same, they shut some cylinders on partial throttle leading to an uneven firing and those raspy sounds.
As for engines sounding bad -- Renault was horrible on STR during VSC training. Now that really did sound like an old tractor.

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PlatinumZealot
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Joined: 12 Jun 2008, 03:45

Re: Honda Power Unit

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Juzh wrote:
PlatinumZealot wrote:Do you mean to charge the battery and propel the car at the same time? Example MGUH out put 200hp to the K.. 160 to propel the car and 40hp to charge the battery? In theory it is possible. I'm not really sure of the situation where you would have excess boost under maximum acceleration though.. but it should be possible.
MGU-H transfers recovered energy in KJ (not kw), and that energy is unlimited. Doubtful anyone actually recovers enough to reach K 160 bhp limit. ~90kw was a number thrown around some time ago.
gruntguru wrote: Highly unlikely anyone has more than 120 kW from the MGUH. I did some calculations earlier in the 1.6 thread - can't remember exactly but it was well under 120 kW. The only way would be much higher boost and higher compressor and turbine efficiencies. (I assumed 80%)
This.
The transfer of energy as time flows is called power... Read the article... power is the word used her and that does indeed make sense. Energy itself is nothing without power. all the sorts of things that transfer energy must be rated with time as a factor.. (How you derive the ampacity of your cables, your cooling system and such).

I only plucked that horsepower out the air for the sake of argument but I can do some rough and dirty calcs if you want. Going by the backpressure you would not want to see, the power that the MGUH sends to the KERS and the Energy store would definitely be less than 160hp.... I just threw the number out there..

A typical turbo for your average 300hp sports car needs 70 hp to compress the air... A dirty calc.. assuming the 1.6L engine is around 320hp without turbo @ 12,000 rpm the F1 turbo would use need around 150hp or so just to compress the air for the engine to bring it up to 620hp or so (you can do a quick thermodynamic calc too using air pressure ratio and AFR if you want, but this way is shorter for me!). That is it's primary job with these regs to power the engine and then the ERS is second- (i think!) So one can easily conclude that the additional power from the turbine that is drawn off for the ERS must be much less than this 150hp.
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riff_raff
riff_raff
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Joined: 24 Dec 2004, 10:18

Re: Honda Power Unit

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That image comparing the 3 different turbo/MGU arrangements is interesting. My first impression was that the arrangement used by Merc seems to present the most issues with regards to dynamics of the rotating components. A long slender high-speed shaft coupling the compressor/MG and the exhaust turbine at opposite ends of the engine is not an easy thing to design. But they seem to have done a proper job with it.
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PlatinumZealot
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Re: Mclaren MP4-30 Honda

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Thefuelman wrote:



Thats actually quite funny. To be honest i dont expect to see Alonso any time soon. That cars performance in qualyfying must be playing havoc with his concussion. :wink:
On a serious note if the Mannor F1 team had been running there is the very real possibility they may have beaten Mclaren. They were doing 1:34s in a dampis qualyfying session last year. Its as bad as it gets. Its safe to say the car isnt running at 50% power output or I doubt it would be hitting 300 clicks on the mainstraight.
Alonso can't magically get 2 second out of a car thats fundamentally flawed and ridiculous. When the car is this handicapped you could put Max Chilton in and be hard pused to notice any major performance difference.
Oh. Let me clarify, not 50% power.. Think of it as 50% stress on the ERS systems...I think that should explain the slow acceleration and braking. Still, Mclaren are in a very tough fly away series. I hope to see how the utilize the race laps. I fully expect them to be lapped by lap 15... possibly being lapped three times over the race. haha.. but I hope that they get enough data to go a better step in Malaysia.
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crbassassin
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Joined: 02 Mar 2008, 20:22

Re: Mclaren MP4-30 Honda

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jason.parker.86 wrote:If I am honest I think McLaren should have partnered with BMW.
McLaren is better off making their own engines. If this Honda deal doesn't work out, who else can they partner with?

Thefuelman
Thefuelman
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Joined: 23 Feb 2015, 11:10

Re: Mclaren MP4-30 Honda

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crbassassin wrote:
jason.parker.86 wrote:If I am honest I think McLaren should have partnered with BMW.
McLaren is better off making their own engines. If this Honda deal doesn't work out, who else can they partner with?
After what Red Bull has said about Renault this weekend It looks very much like they will be going their own way with powertrains. At this rate I forsee this McLaren Honda partnership ending up like the McLaren Peugeot relationship of 1994. Maybe Bringing McLaren and Renault together would yeild better results?

foxivan
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Joined: 08 Jul 2011, 15:51

Re: Mclaren MP4-30 Honda

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crbassassin wrote:
jason.parker.86 wrote:If I am honest I think McLaren should have partnered with BMW.
McLaren is better off making their own engines. If this Honda deal doesn't work out, who else can they partner with?

the main reason why they didn't develop their own was due the huge cost involved, even now they have a road car business. As a long time Mclaren fan I'm very disappointed like most of you, but I still have hope in this team. Hopefully they can finish the race (yeah I know K Mag was out even before the race started) and get the critical data they need. If the problems are really related to electronics and software instead of the hardware I am still a bit optimistic.

CjC
CjC
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Joined: 03 Jul 2012, 20:13

Re: Mclaren MP4-30 Honda

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After been peeved off all weekend about the car, engine an relative pace, I'm pleased JB finished the race!
Sky sports were reporting that the honda is running on 30% power, IF that's true then there is a lot of ceiling space for the engine to move into and also the chassis and aero improvements. Let's see how the season pans out- can't wIt to see an all out quali lap
Just a fan's point of view

basti313
basti313
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Joined: 22 Feb 2014, 14:49

Re: Mclaren MP4-30 Honda

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CjC wrote:After been peeved off all weekend about the car, engine an relative pace, I'm pleased JB finished the race!
Sky sports were reporting that the honda is running on 30% power, IF that's true then there is a lot of ceiling space for the engine to move into and also the chassis and aero improvements. Let's see how the season pans out- can't wIt to see an all out quali lap
I do not believe this 30%. In the fight with the FI you could clearly see full power on the two DRS straights. I think they have their biggest problems with MGU-H, because Button was much slower on the short straights between the corners.
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proteus
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Joined: 13 Feb 2015, 14:35

Re: Mclaren MP4-30 Honda

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malaysia will be even worse, due to the high speed configuration of the circuit. If they will run in the same engine mode, they might not even get in the 107%.....as a mclaren fan, im just blown away how this all happened since 2012 season....they had problems before (2002, 2004, 2006 and 2009 - in this millenium), but this is third year in a row now...
If i would get the money to start my own F1 team, i would revive Arrows

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Shakeman
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Joined: 21 Mar 2011, 13:31
Location: UK

Re: Mclaren MP4-30 Honda

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crbassassin wrote:
jason.parker.86 wrote:If I am honest I think McLaren should have partnered with BMW.
McLaren is better off making their own engines. If this Honda deal doesn't work out, who else can they partner with?
Frankly this is nonsense. If companies like Honda and Renault are struggling with all their life times of know how and resources how on earth do you expect a comparatively tiny outfit like McLaren to do better?

If designing an F1 engine was so easy teams would've been doing it themselves for decades in much easier formulas.