Jump to content
SAU Community

Recommended Posts

There was supposed to be some getting set up on the M4 west of sydney around May this year for a 1 month trial where ofenders were issued a warning during the first month and then straight into full use.

I can only guess that it never happened because i would definately have received something by now.

Link to comment
https://www.sau.com.au/forums/topic/54221-rta-romours/#findComment-1063338
Share on other sites

Nah, he'd probably just be involved in a crash caused by one of the numerous other, almost un-enforced dangers of driving, or by someone who is either too busy watching their speedo to notice traffic, or is of the growing-in-popularity mentality that if they're not speeding, nothing can happen to them.

Isn't Victoria's road toll the highest in years, despite having harsher than ever speed enforcement?

Link to comment
https://www.sau.com.au/forums/topic/54221-rta-romours/#findComment-1063382
Share on other sites

those cameras that monitors the time and speed of trucks on the highways.

It will be used on cars soon also.  

:chop:

You mean those SAFE-T-CAM things??

i remember one of the first times i did a long trip, i had no idea what they were so i slowed to the speed limit thru each one...realised later they were for trucks :Oops:

Link to comment
https://www.sau.com.au/forums/topic/54221-rta-romours/#findComment-1063617
Share on other sites

another dumb idea about making money. imagine if you dont have cruise control... or even with it...high stress freeway driving!

*oh no i am going 125 instead of 110 down this hill, better brake suddenly and cause a 40 car pileup because all the mums in falcons behind me are tailgating*

every time i have driven along the m4 during the day i have been tailgated, never by p platers majority of the time by females in large sedans. scary.

Link to comment
https://www.sau.com.au/forums/topic/54221-rta-romours/#findComment-1063997
Share on other sites

You mean those SAFE-T-CAM things??

i remember one of the first times i did a long trip, i had no idea what they were so i slowed to the speed limit thru each one...realised later they were for trucks  :Oops:

yep - those things, but now for cars. I usually stick my fingers up when i drive though just to let them know that im awake.

wouldnt this be an infringment on the privacy laws ?

Link to comment
https://www.sau.com.au/forums/topic/54221-rta-romours/#findComment-1064240
Share on other sites

  • 4 weeks later...

The Point to Point speed cameras are already on the M4 in sydney between the cumberland Highway overpass and the bridge that goes over church street. They arent very easy to spot though, on the cumberalnd highway overpass, they are almost tucked up under the advertisement sign on the bridge, as you approach look up, your on camera :). they look like the digital cameras in the bottom pic of the below link. The second set of cameras is on the existing safe-t-cam and variable speed limit sign framework just on the beginning of the bridge over church street. As the site mentions the cameras are only on the eastbound route. Theyve been very tricky about installing these cameras and hiding them, and legally they need not add extra signage drawing attention to them as they use the speed camera warning signs for the cumberland overpass speed cameras to cover their asses (hence only eastbound). They really didnt want anyone knowing what they were up to till its too late, as the website states they will be activated ~june 2005.

http://www.rta.nsw.gov.au/roadsafety/speed...mera_trial.html

Link to comment
https://www.sau.com.au/forums/topic/54221-rta-romours/#findComment-1093784
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Latest Posts

    • This is awesome.     
    • Thanks for the quick replies guys its appreciated. A small extension was welded onto the standard 6boost external gate pipe which you can see where the pipe goes from black to stainless just below and to the right of the rear housing in the first picture. Overall I would say the flow is pretty good other than 6boosts choice to come straight off the collector at a decent angle.. Not sure why I went with two valves, I originally replaced the stock twin bovs with the GFB when I had the twins on. When I purchased the EFR it came with the Turbosmart Kompact BOV so I figured that would be a better option than the stock EFR Bov. I don't believe the Turbosmart BOV is adjustable? When I get the spike and then sudden dip in boost pressure, the turbo speed does drop as well. Stock head size wise however I believe it has Neo Turbo springs and a Neo Turbo intake camshaft and an aftermarket exhaust camshaft in the vicinity of 260 degrees. We didn't try a different MAC valve, we tried two different ways of plumbing it and we also tried removing the mac valve entirely and just having the boost source from the turbo directly connected to the wastegate and it still spiked / dropped and exhibited the same behaviour. Standard R33 GTR 5 speed tansmission. I'm running a Haltech Elite 2500 and can provide some logs if you. I understand what you're saying in that it looks like an auto plot however no, it's still a manual and it just has a lot of torque down low, for all intents and purposes it's a very impressive street car. I've attached a photo of the quickbitz dyno plot which was when the only difference is I was running -5 twin turbos with a mac valve. As you can see theres a decent dip in AFRs between 125kmh and 135kmh. Our problem now is not that the AFRs are dropping, just the boost pressure is dropping, however it is evident in the same RPM range of the map, coincidentally or not.
    • What transmission are you running?  It's a bit tricky with the scaling, but at face value the power "curve" looks more like a "line" which is a bit odd... basically a lot more like a dyno plot I'd expect with a highish (compared to a factory auto) stall torque converter type setup. If this is running an auto then this kind of boost control challenge is definitely a thing, the rpm scale on the dyno doesn't reflect what the engine is actually doing (unless the dyno has access to the engine's ACTUAL speed electronically) and what you'll get is a big rpm flare up as the engine torque launches past the converter pump's ability to resist torque at that rpm, then as the converter starts picking up rpm it will kinda even out again and the engine rpm will pick up more steadily. The trick with this "flare up" is if it's kinda near the boost threshold for the turbo then the engine's airflow requirements to maintain the previous boost level will outrun the turbo's ability to supply that boost - so you end up with a natural flattening off, if not dip when that happens.   If you are running closed loop, or even tune the "feed forward" wastegate duty cycle to deal with that rpm spike then when the engine starts settling to a more typical climb you'll actually have a situation where the gate is "too closed" and boost will run away for a bit, then have to pull down again.      It's not trivial to get this perfect as most boost control systems are generally expecting more predictable engine rpm rates of change, but if you *know* that's whats going on then you can at least "accept your fate" and realise getting that area perfect is kinda chasing your tail a bit, and assume that if the rest is working sensibly and the spike/dip isn't completely uncontrolled then you should be good. Sorry if I've gone off on a tangent, but the dyno plot and boost control behaviour look a LOT like what I've seen tuning autos in the past. What ECU are you running? Could possibly be convinced into looking at logs if I get too bored this weekend haha.
    • A few things that seem a bit off here. - why is there 2 BOV’s?  - the turbo smart BOV on the compressor housing, is it turned up ALL the way? I have seen this become an issue on old man Pete’s car. It would push open and recirc, turbo speed would rise and the boost pressure would do weird things. - stock head? Does that include springs? - tried a different MAC valve? Is it plumbed correctly?
    • Photo of manifold showing gate location? I mean, it's 6Boost, so we probably shouldn't be worrying, but always wroth knowing what the layout is. Plumbed back to atmosphere? Or into the dump?
×
×
  • Create New...