Having driven cars with the M56 engine once or twice it always surprises me that sone people describe it as lacking low down torque. Have you spend much time behind the wheel?
The worst bit is that dip is entirely artificial to exacerbate the cam profile changeover, because racecar feels. Put correct mapping in place and it disappears entirely.
Just for fun here's a very old video of a control line speed model with just such an exhaust system. It takes over 10 seconds from takeoff to accelerate to the point where the engine comes 'on pipe' at about 55 secs in, giving a huge jump in power. This setup gives the absolute maximum power but would be useless for any normal application
I'm sorry....but its not an opinion...its fact.....look at the power/torque chart....at 2500 rpm (a rev range commonly in use on the road). it produces less torque than my 2.0 derv Alfa does at 1750 rpm!!
www.motor1.com
But the weight really does affect the top speed because you have got to find somewhere long enough to do it!
Which begs the question why? So few places on a planet that is facing challenges that require technical solutions. Fair enough, absolute LSR attempts - doing what has not been done before - but a lesser version that is road-going doesn't mean much to me and probably others too. Despite what its purchasers may think.
What shocked me was the low specific torque output of the 12.8l Bugatti. Circa 30-35lb.ft/litre where in current times it's hard not to achieve 55-60lb.ft/litre. Then I remembered the low octane fuel it had to contend with and the consequent low compression ratio. Yep, fuel matters, octane is king - and we can grow as good or better than can be extracted from underground. It's not the engine that should be banned but fossil fuels. We could grow our way to CO2 neutral solutions at surface level. Instead, we are doing what we always did - mine the earth for its finite resources (lithium, cobalt, etc) while pretending we are doing something new!
Nope. It has to be done responsibly with CO2 reduction front and centre.
What's the CO2 emissions/energy used associated with the massive battery bank buffers for high speed recharging of EVs? And all the other electrical infrastructure that wouldn't be needed - or could be allocated to domestic/business use?
Three quarters of the land growing crops to feed livestock is available. Was planet earth's surface area less thousands of years ago when the vegetation grew that become our fossil fuels which we have extracted intensively for over a century without once replanting?
No need to apologise, I’ll take your word for it. Perhaps the M156 doesn’t feel lacking in torque to me because I’m comparing it to my car, but if you’re used driving something with much more torque than the M156 - your Alfa must be an animal by the way - then the M156 must feel slow in comparison.
I doubt many people could drive one after another to compare but it would be great to see members cars go head-to-head on a drag strip. We really ought to sort out an MBClub event at Santa Pod or similar.
