wht510

Photos?

When I drove down maroondah hwy (past healesville) there was probably 200mm deep of water on the road. I would assume it would've dried out by tomorrow though? I still want to meet up with everyone though...

Alright. I have just cruised my way upto maroondah reservoir (on the way to Buxton) and the roads were reasonably covered in water. The Datto managed to not get drowned. I assume this cruise is now postponed? Is anyone meeting still at Monash?

Thanks Daleo.

Point taken. I have just been on a few forums where people fit stuff, then say how good it is without hard data. I can't really 'feel' your 'seat of the pants' performance upgrade. Just want numbers that's all.

Don't want to sound sceptical, but can you prove the increase in driveability, economy and reduction of intake temps?

What's the benefit of the shift kit? (ie. what does he change, and can you ask for particular performance/snappier gear changes etc.?)

Was just going to make it out of 4140 or perhaps something else but a little thicker, laser cut, 20 tonne press to right angle bend, and perhaps coin where necessary, and then zinc plate it. I was contemplating making it out of one piece (ie not welding anything) The coining would take care of the strength, or the thickness of the material. Without measuring, the factory one looks pretty thin. The equivalent in 5mm would be strong enough as is without welding. What grade of stainless you going to run?

Why stainless?

Can you take a photo of where the failures occur on the mounts?

Which car park in Monash Uni, as it's pretty F'ken big.

I'm mustard. If it's in Feb then I should be fine. Jan I'm still over in the States.

Yes you are right. Depends on whether you wish to say that the 'crumple zones' are negligable, which I was assuming. At those speeds, it's game over anyway the crumple zones are just a token. Most of the kinetic energy isn't absorbed by the crumple zone, but the occupants and the car itself. Eitherway, Kinetic energy and momentum are the right way of figuring this stuff out. I'm spent (driving on the right side of the road over in the good ol' US of A. Where the limit is 55, but everyone does 70!) Peace out. Jet lag is speaking.

They are going to buy out Todd at Signature? Either way, it's good to have someone from a large company such as this expressing interest in us. Thanks to Dale though, for the group buy!

You are perfectly within your right to question the photo as there are two cars in the photo. You can argue that you don't remember when the incident happened and would like clarification. It's only a question. You already know that if they can prove it 100% that it's you, then you'll cop it like a man. You can even say that, but they need to PROVE it. This particular style of defence has cropped up many times. You are lucky as you happened to be overtaking and someone else got in the picture.

Can you prove it? Or did you want me to using engineering physics? Anyway, this thread isn't about whether you want to have a head on or not. It's about Mobile Speed cameras in NSW. So I suggest we get back on topic. Although this has been fun

+1 for good luck. Haven't got any direct advice, so i'm keeping my mouth shut.

Honestly... I was calling you a granny driver because it sounded like you drive like one. I didn't call you an F&*king w&*ker or anything like you have been throwing around like a young punk. Don't take it personally mate, I was merely suggesting you get your eyes checked, and put some blue rinse through your hair (KIDDING!!! Just kidding... I wouldn't suggest this, as it sounds like you are competent, just we have different opinions)

Yes probably, but they do sound like they were trying to help, and in this case i'm sure we appreciate the thought behind offering to help out.

You be dead then mang! Fatz it's not "far less energy", read the post a couple above on the formula, and figure it out that both have exactly the same energy (one is doing 160km/h, and the other is doing a difference of 160km/h) There ain't no difference in an ideal world. Although like I said previously, variables make results slightly different. Static friction is greater if the car is at standstill, so technically a bees knee difference between the two. There's more though...I wont detail them here. For all intents and purposes, they are the same.

Umm.... None? Regardless, both have fairly similar energy. Variables make the difference though. What about you? Which one would you rather be hit by? Either way we'd be dead. Perhaps the 160km/h would be more spectacular and better for spectators?

Not really. It's like complaining that you are allowed to 'steal' $3, when previously the limit allowed you to steal $13 (ie changing the speed limit from 50 down to 40). Then the government measurement device to find how much you stole is inaccurate. That's more like it.

Read above.. Car crashing into wall at 80km/h isn't the same as car crashing into another moving object traveling in the opposite direction. I guess that makes me a nerd , or someone who just happened to be 'gifted' at school... Regardless, you can't argue with physics

Back to school for you guys I'll try and explain it to you guys It's based on momentum and impulse energy. Forgive me if it all starts getting too complicated. Momentum is mass times velocity. So for example: 2 cars weigh 1000kg ea. Both are going at 80km/h Therefore the momentum of each car is: Mo1 = M1 x V1 Mo2= M2 X V2 Where: Mo = momentum (in kg m/s) M1 = Mass of first car = 1000kg V1 = 80km/h which 22.22 m/s) M2 = 1000kg V2 = 80km/h which is 22.22 m/s) The direction they are going has no relevance, as they are both going 80km/h (or one is going -160km/h if the other was stationary) Momentum for each car is 22,200 kg m/s I think you will agree if the other car is going faster, the momentum is higher. What does this mean? Well when you CHANGE the momentum, you get Impulse. Impulse is the change in momentum over time and this is the killer. Therefore: I = M x DeltaV OR F x DeltaT (for a car hitting a wall for example) In the case of two cars it would be: I = M1 x DeltaV1 - M2 DeltaV2 Where: I = impulse M = mass in kg DeltaV = the change in velocity (m/s) of the respective car, noting that the velocity of the other has to be negative due to the direction traveling. F = Force in Newtons DeltaT = change in time in seconds. So if your accident occurs over 1 second (ie it takes 1 second for the car to go from 80km/h to zero) then impulse will be greater than impulse over 2 seconds (hence crumple zones/airbags and anything else which cushions the impact) Combine the two cars going at 80km/h and you have doubled the impact speed because both cars combined are carrying twice the energy = Bad. So to explain to those who are struggling: Car doing 80km/h hitting another car doing 80km/h head on = game over. I've seen the crashes, i've studied the photos and it's very rare for a survivor to live or not have very serious injury (ie paraplegic etc.) car doing 120km/h vs car doing 80km/h. Strangely, the car doing 120km/h is slightly better off than the poor bastards in the 80km/h car, as the energy of the 120km/h car is transferred into the 80km/h car. (kinetic energy) Kind of like the billiard/snooker ball example. Regardless, it's still a high speed crash, and game over. Survival is again pretty rare. Of course there is a great deal of luck (such as the car not hitting head on but grazing down the side etc.)

This is the worst sort of driver IMHO. The person who thinks they know it all, thinks they have experience because they fanged someone elses car around motorkhana (not caring for the car because it's not yours?) Then you say there's no room for these skills on the road....... "except in an emergency" - which would I would hazard a guess and say there is room for skills like these on the road. Driver training/track work/motorkhanas etc. etc. etc. isn't going to save you when you aren't concentrating. You aren't invincible because you are driving below the speed. Personal responsibility yes. Driver courtesy would be another too. My argument has been and always will be the same as Daleo. The enforcement of these rules is too draconian, with no leeway. with some idiot behind a desk coming up with a speed limit for the road they have never seen. Even some of the systems are prone to error (C'mon... Datsun 120Y at 170km/h?? BAHAhahahhahah) I will always agree with anyone who says some dude doing 30km/h over the speed limit deserves some fine (unless it wasn't them and the camera malfunctioned, or it was someone else in the photo, or they were overtaking a 'hazard') etc. etc. you get the point....