Jump to content
SAU Community

Recommended Posts

I was under the impression that bonnet pins/locks were ok so long as the standard lock was still in use. Effectively twice the safety and a bit of overkill.

Maybe they are concerned with pedestrians getting caught on them whilst flying over your bonnet. Who knows....?

Z.

I believe that is the reason for them being illegal

True.

Personally i dont think you should be complaining about the pins, your VERY lucky they didnt **** you up for having a carbon fibre bonnet. as that would be alot more espensive to replace then some bonnet pins.

out of intereset.. why do you have bonnet pins on your road car?

not havign ago .. im just confused as to why? :P

True.

Personally i dont think you should be complaining about the pins, your VERY lucky they didnt **** you up for having a carbon fibre bonnet. as that would be alot more espensive to replace then some bonnet pins.

out of intereset.. why do you have bonnet pins on your road car?

not havign ago .. im just confused as to why? :)

At this time my road car is also my race car and bonnet pins are mandatory for some of the events I enter. Also I would be uneasy about a fibreglass bonnet with only one lock in the centre. I was actually considering adding 2 more evenly spaced as in the V8's I'm sure they'r there for a reason.

Hope that unconfuses you :cheers:

On the topic of carbon and FRP bonnets, having one on a road car is a bit of a wank. Firstly as you all know they are illegal and 2) only if they have vents.

Have you ever see the f**ker flex so much, ballooning as much as 1-1.5 inches during a high speed rally stage...without vents your likely to crack your FRP bonnet and if your lucky you'll still get heaps of scratches around the bonnet pins where they have been vibrating away.

Your better off with a Aluminium bonnet on a road car.

I used to get pulled over (no joke) atleast once every 3 weeks in a car that had bonnet pins.

Noone ever even mentioned them.

I was going to get bonnet pins on my r32 - I will have to clarify this because I don't think they are illegal if you have your factory catch in place.

And as for them being a wank - it's easier for racing/track where extra restraints are required instead of a peice of rope or whatever else people use.

Maybe I never got defected because the car I had some came stock with bonnet pins.. HMM interesting.

I find it a bit strange for something that's illegal on a car would be sold at super cheap auto to put on your car.

Even if it does look like rice.

Ummmm there are lots of things sold at autobarn/supercheap that are illegal/defectable, just because they sell them, doesn't make them legal to use on a road car.

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


  • Similar Content

  • Latest Posts

    • First up, I wouldn't use PID straight up for boost control. There's also other control techniques that can be implemented. And as I said, and you keep missing the point. It's not the ONE thing, it's the wrapping it up together with everything else in the one system that starts to unravel the problem. It's why there are people who can work in a certain field as a generalist, IE a IT person, and then there are specialists. IE, an SQL database specialist. Sure the IT person can build and run a database, and it'll work, however theyll likely never be as good as a specialist.   So, as said, it's not as simple as you're thinking. And yes, there's a limit to the number of everything's in MCUs, and they run out far to freaking fast when you're designing a complex system, which means you have to make compromises. Add to that, you'll have a limited team working on it, so fixing / tweaking some features means some features are a higher priority than others. Add to that, someone might fix a problem around a certain unrelated feature, and that change due to other complexities in the system design, can now cause a new, unforseen bug in something else.   The whole thing is, as said, sometimes split systems can work as good, and if not better. Plus when there's no need to spend $4k on an all in one solution, to meet the needs of a $200 system, maybe don't just spout off things others have said / you've read. There's a lot of misinformation on the internet, including in translated service manuals, and data sheets. Going and doing, so that you know, is better than stating something you read. Stating something that has been read, is about as useful as an engineering graduate, as all they know is what they've read. And trust me, nearly every engineering graduate is useless in the real world. And add to that, if you don't know this stuff, and just have an opinion, maybe accept what people with experience are telling you as information, and don't keep reciting the exact same thing over and over in response.
    • How complicated is PID boost control? To me it really doesn't seem that difficult. I'm not disputing the core assertion (specialization can be better than general purpose solutions), I'm just saying we're 30+ years removed from the days when transistor budgets were in the thousands and we had to hem and haw about whether there's enough ECC DRAM or enough clock cycles or the interrupt handler can respond fast enough to handle another task. I really struggle to see how a Greddy Profec or an HKS EVC7 or whatever else is somehow a far superior solution to what you get in a Haltech Nexus/Elite ECU. I don't see OEMs spending time on dedicated boost control modules in any car I've ever touched. Is there value to separating out a motor controller or engine controller vs an infotainment module? Of course, those are two completely different tasks with highly divergent requirements. The reason why I cite data sheets, service manuals, etc is because as you have clearly suggested I don't know what I'm doing, can't learn how to do anything correctly, and have never actually done anything myself. So when I do offer advice to people I like to use sources that are not just based off of taking my word for it and can be independently verified by others so it's not just my misinterpretation of a primary source.
    • That's awesome, well done! Love all these older Datsun / Nissans so rare now
    • As I said, there's trade offs to jamming EVERYTHING in. Timing, resources etc, being the huge ones. Calling out the factory ECU has nothing to do with it, as it doesn't do any form of fancy boost control. It's all open loop boost control. You mention the Haltech Nexus, that's effectively two separate devices jammed into one box. What you quote about it, is proof for that. So now you've lost flexibility as a product too...   A product designed to do one thing really well, will always beat other products doing multiple things. Also, I wouldn't knock COTS stuff, you'd be surprised how many things are using it, that you're probably totally in love with As for the SpaceX comment that we're working directly with them, it's about the type of stuff we're doing. We're doing design work, and breaking world firsts. If you can't understand that I have real world hands on experience, including in very modern tech, and actually understand this stuff, then to avoid useless debates where you just won't accept fact and experience, from here on, it seems you'd be be happy I (and possibly anyone with knowledge really) not reply to your questions, or input, no matter how much help you could be given to help you, or let you learn. It seems you're happy reading your data sheets, factory service manuals, and only want people to reinforce your thoughts and points of view. 
    • I don't really understand because clearly it's possible. The factory ECU is running on like a 4 MHz 16-bit processor. Modern GDI ECUs have like 200 MHz superscalar cores with floating point units too. The Haltech Nexus has two 240 MHz CPU cores. The Elite 2500 is a single 80 MHz core. Surely 20x the compute means adding some PID boost control logic isn't that complicated. I'm not saying clock speed is everything, but the requirements to add boost control to a port injection 6 cylinder ECU are really not that difficult. More I/O, more interrupt handlers, more working memory, etc isn't that crazy to figure out. SpaceX if anything shows just how far you can get arguably doing things the "wrong" way, ie x86 COTS running C++ on Linux. That is about as far away from the "correct" architecture as it gets for a real time system, but it works anyways. 
×
×
  • Create New...