Hey guys and gals,
I was reading a some info on F1, and came across
this statement for a question that was asked by the writer.
Why would would you want to generate less torque in the mid revs
range?
"The trade-offs concern driveability (the response of the engine
to the driver requested torque), acceleration
(less torque = less acceleration, except if grip limited)
and fuel consumption. In general, reducing the torque is
achieved by igniting the fuel later in the cycle by means
of the ignition map. This may improve driveability smoothing
out the torque curve which may help the driver manage his tyres.
This is not in any way a forbidden driver aid or an attempt to
mimic the behaviour of a forbidden system (eg closed loop
traction control)" said Rob White, Renault Sport F1 deputy
managing director
these are my thoughts on the above.
1) If I were to hazard a guess, I would think that the engineers at
subaru or Toyota(not sure of which designed the software), pulled
timing as this statement would suggest to mitigate wheel spin,
considering that it will be using Michelin Primacy tires
that are LOW grip and narrow. So combining low grip tires and a torque
spike in the middle of the rev range could induce an overly tail
happy car that could potentially overwhelm the TC and VSC in wet
conditions-I've experienced this in stock form, pulling third on a
shitty B-road=scary! This makes me believe that the fun police at
these firms, wanted to tone this down to prevent any lawsuits,
considering that this car will be bought by mostly newbies
(young males or gals) that are new to RWD, and therefore inexperienced.
I used to have (sold it a month before) a 84 300ZX Turbo pushing 12 psi
, so I was used to the torque of that, so before flaming me
for being inexperienced, I just wanted to point that out.
2) they reduced the torque in order to "save" some for later models.
3) maybe the are also capping this engine, so that the STi model comes
out they will release a lot more power, as I'm sure the tires
and suspension will be better, to contain it.
I did a search function I didn't find anything that directly
states that the torque dip has been resolved, but only reduced. I thought
this was a very interesting statement and clearly by the article it
appears that Toyabaru have incorporated something along the same lines of
throttle pedal and engine mapping. In saying that, I am by no means an
automotive engineer or tuner, so I have learned all my info from race car
magazines and research.
This is the main page link:
http://www.auto123.com/en/news/f1-a-...-of-technical-articles-about-formula-1?artid=152064
This is the page that I pulled the above statement from:
http://www.auto123.com/en/news/f1-technique-explaining-engi
ne-torque-maps?artid=146245
whats everyone's thoughts?