noby76

43 minutes ago, Comedian said:

 Nonsense.

 

 

Another numpty who thinks it doesn't make sense. each man to his own... feel free to drive yours on summer tyres if you wish  when we experience a harsh winter and i cant wait for your car pictures in that ditch near Lincolnshire..

1 hour ago, rayaans said:

On a car like the RC-F surely winter tyres are pretty much mandatory when the weather gets bad. You can somewhat chance it in a 4WD or FWD but I wouldnt chance it in a 470hp RWD coupe with fat tyres on it.

And then you have idiots taking it on the motorway in snow with performance summer tyres on....

I agree... funny how some can afford £500 - £1000+ a month on Leasing/Financing these cars but cant/won't fork out £300 for some reasonable winter tyres to get them through this period. some say.. but i don't have a space to store tyres.. i say just invest in these smaller 6X4 cheap sheds you can buy from ebay for less than £200 and a descent locker. and if they dont have the space for a 6X4 shed then consider upgrading your home first instead of financing/leasing a £50,000+ car...  

35 minutes ago, Linas.P said:

 If you have no grip in your tyres, you could have FWD, RWD, 4WD or 8x8 - makes no difference. . 

 

everyone knows this... grip is what keeps a car on the road and prevents loss of traction... was referring more to the numpty dumpties who have the notion of being invincible in conditions like this who drive like its a warm summers day on an icy -5 road...  but end up in a ditch when their superior driving skills are called upon.

was more like get out of my way i have a powerful V8 with 470bhp and y'all going too slow for my liking...  then starts crapping himself once the car start dancing in those conditions..

20 minutes ago, Linas.P said:

Those RWD cars... bloody deadly weapons on the wheels.... Noby was right all along 😄

Yes in tricky conditions they could be as you are already aware.. especially when driver skill is called upon, majority will end up in a ditch even with the electrics turned on as above.

2 minutes ago, Toothy said:

I'd wager this was snow/ice related. Rather than lack of talent. I really dislike driving the F in the snow, it's crap.

Thank GOD for modern car electrics i say.. makes average joe think they are 'Hamilton'

13 hours ago, Big Rat said:

She was used in much press and photographic work and had her first  MOT in Feb then met her end on a snowy motorway not long after.

 

And lastly at the scene of the accident.......

Big Rat

Another 'Hamilton' wanabe who can't handle a RWD when push came to shove... what a WASTE

2 hours ago, Ben01 said:

2.5l V6 from IS250 is same power and less torq compare to elder inline GS/IS300, or am I wrong?

Yes less torque on paper but other factors like dual vvti, direct injection and gearing has made it very close in terms of performance between GEN1 IS300 and GEN2 IS250 which translates to similar 0-60 times and top end.. 

also, IS300 power and torque rating used the older system of measuring power whereas the IS250 uses the newer system of measuring power.. i read somewhere the 250 would have around 210-215 if the older system was used.

or replace the is200 with a manual IS250 might work out cheaper and less hassle than trying to source the supercharge kit  for IS200..

very nice the GS430's had one in British racing green with the cream interior...very powerful and smooth.. just seeing yours makes me miss mine... had to sell it due to my circumstance changing but will def be back in another GS once i am in the position to..

@TigerFish hows your AMG? besides power howsdoes it fare when compared to the GS430 in other aspects? 

12 minutes ago, Linas.P said:

It is called collaboration, it is done because it is more tax efficient in this case. In global supply chain it is cheaper to co-develop and co-build the car with BMW, because that means BMW can sell car with lower tariff using Toyota parts and Toyota can do the same with BMW parts where each of the companies have better market share e.g. Toyota in US/Japan/Middle east, BMW in EU.

It is not really replacement of IS-F though, more for previous Supra. I am not big fan of inline engines, but that sounds like throwback to 2JZ-GTE! More boost!

better to collab when it comes to mass produced cars between the two.. but an iconic and cult following sports car like the Supra, collaboration with another manufacturer should be the last thing.. it will benefit BMW's sales for press and biased European car jounalists to say the Supra has a bmw sourced engine but wont benefit Toyota mainly the hard core Performace Jap car lovers who will forgo bmw, merc and audi to pick up a GTR or NSX just because its Japanese..

Nissan and Honda did not need collabo to build the GTR/NSX engines and Toyota is a bigger richer company than them....

If i was the execs at Toyota i will do something completely different by fitting a high revving 9000rpm NA engine with two high output electric motors to front and rear wheels. and for go turbo... the selling point will be the only high performance 9000rpm sports car. say it makes 100bhp per litre. at 3.5 litres will be 350bhp + 100bhp front electric motor and 100bhp rear electric motor totalling 500-550bhp... those who will buy these cars dont care about economy anyway... 

you might aswell get an M4 BMW... i read some where they will be using 3.0 inline 6 BMW produced turbo engines...  a big company like Toyota is telling me they cannot build their own inline 6 to power a Supra??

https://www.topgear.com/car-news/geneva-motor-show/new-toyota-supra-get-450bhp-bmw-straight-six-engine

1 hour ago, Mark G said:

Sounds great but 725bhp???, it struggled to keep with a couple of cars there...………….

i agree very bad example of an over powered car... thing is there are some cars which are better left in NA format rather than turbo/super charging them... he be better off leaving the car in NA form and investing on setting up the suspension and tyres for track use. looks like he was working hard to keep the car from not fish tailing rather than enjoying the drive.. would certainly make a nice 200mph drag racer tho...

no traction/ grip.. cant put power down effectively

14 hours ago, Rabbers said:

Seriously considering unsubscribing Club Lexus after seeing the Stripe-It-All ad they are currently running.  I don’t want to sound snobbish but I can’t imagine a more tasteless product for any RC or other Lexus owner 😧 !

I think it looks cool thats if one is into modding scene.. seen it on a few high performance cars and looks very nice saw red strip on a Tesla SUV and Yellow on a yellow 5.0 Mustang the other day.. very nice with matching colour calipers aswell.

go and play somewhere else  Linas i dont feel like playing with you today I am busy.. 😫

Linas.. zip zip zip it. it has been confirmed not by me but by others on here give it up and take a chill pill.. once again FWD squat and FWD rear wheels carry momentum when in motion ohh poor Linas/comedian seems they all butt hurt  😭😂 .. you need a Kit Kat seriously..

1 hour ago, Linas.P said:

 

Now when you have decent methodology to start with and reasonable baseline to compare it with, you can certainly go and prove or disprove it in the lab. Or we can imagine one:

 

 

give me a call once you have all the requirements i asked ready and proof will certainly be in the pudding. 

funny how guys still want to disagree even when it has been confirmed fwd cars squat and rear wheels in fwd car carry momentum whilst in motion.. 

5 minutes ago, darrude said:

regarding squatting, it has nothing to do with fwd/rwd/awd:

 

so as you can see, the whole praise on RWD cars only having that sqautting charcteristics only is false. above confirms all will indeed squat irrespective of drive layout

anyway thanks for your time guys its been fun..😎

7 minutes ago, Comedian said:

You can exert a force on the Empire state building by pushing it with your hands. But no-one sat on floor 42 is going to say "can you feel that?"

 

so the argument went from does FWD cars squat i said yes he said no others confirmed they do.    noby 1   , comedian 0

then went to does rear wheels carry momentum to assit in pushing the rear end of a FWD others confirmed yes it does carry some momentum energy when in motion. noby 1 comedian 0

and quote above has now switched to if that energy can be felt or not.  who is moving the goal post now eii??

fact that you might not feel that energy in the  FWD does not mean its not there..

1 hour ago, Comedian said:

As soon as you lift of the throttle everything starts decelerating, including the wheels. To push (as is your claim), the un-driven wheel would need to accelerate. The total force would need to be forwards, but it isn't, the net force is to drag the car backwards. 

So assuming my car has a mass of 1800kg at 60mph that gives us a momentum of 48240 kg m/s - still not enough to "push" the car when you lift off the throttle.

A 5kg wheel tyre will have a fwd momentum of about 134 kg m/s - you see the problem?

If you wouldn't mind working out the rotation forces for us? Too hard for me and you've already said you understand physics better than everyone here, we are just lay people after all.

I think this is the formula you need, but feel free to correct me.

 

KE (rolling) = 1/2 mv²_cm + 1/2 I _cm w²

 

Get us a lab, 4 independent electronic wheel rollers which has the capability to spin and apply brakes on each wheels independently. 

your quote above "As soon as you lift of the throttle everything starts decelerating," so are you saying during this deceleration or energy depleting  process the rear tyres on a FWD car is stagnant?

if yes explain why?

if no, answer what the rear wheel tryes are doing to the rear end of a FWD car or the rear end of your 1800KG weight car during the deceleration process when no throttle is being applied.  

7 hours ago, NemesisUK said:

Yes the rear wheels have stored rotation energy but their contribution is insignificant.

The physics and real world experience can be quite different... but no less real.

Ohh so we have now gone from guys saying rear wheels on a FWD does not assist in pushing the cars rear end of a car to now a CONFORMATION and i quote "Yes the rear wheels have stored rotation energy"  

don't make a fool of your self if you think enough of that stored rotational energy does not get depleted to assist in pushing a FWD cars rear end.  the clue is in the words rotational force.. 

2 hours ago, Comedian said:

You're making a fool of yourself.

Sent from my STV100-4 using Tapatalk
 

you are the one's making big fools of yourselves... and if you still dont believe momentum from the rear tyres do not assist in pushing the rear end of a fwd car forwards, get us a lab, 4 independent wheels rollers, and a FWD car and a proof will be made right before your eyes that momentum from rear wheels pushes the rear end of a Fwd car.

5 minutes ago, Comedian said:

I don't need to prove you wrong. 

Sent from my STV100-4 using Tapatalk
 

so i suggest you keep it zipped next time.. and yes i never banked physics classes.

comedian!! take it how ever you want  again prove me wrong if you disagree fwd cars squat under acceleration or prove me wrong if momentum generated from secondary or indirect rotational force from the rear tyre of a fwd  as a result of the fronts pulling will not result in the rear tyres assist in pushing the rear end of a FWD car. 

i think you keep confusing the generation of moving momentum or  indirect rotational force at the rear tyres of FWD car to mean having a physical drive shaft link to it.  which is not what I am saying.. read my posts very carefully. 

1 hour ago, Big Rat said:

 

all vehicles will squat at the rear to a lesser or greater degree when moving forward depending on the amount of acceleration force being applied

 

 

And this is what i have been saying all along have you not bothered to read my previous posts?? this started of by me commenting more or less  what you said above that fwd cars also squat during acceleration and comedian said i was talking rubbish.

and if you read my posts i never instigated or mentioned any form of drive is directly being applied to the rear tyres of a fwd as there is no drive shaft connected to it but the result of the front wheels pulling the car during acceleration causes an indirect rotational force at the rears as they do not have any choice but to go again resulting in a push of the rear end of the car during motion. in other words assisting pushing the rear end of the car due to gaining enough moving momentum.