Is car going to be ready for next years race season mate
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Is car going to be ready for next years race season mate
Still not finished? Lol keep it up mate going to be awesome when it's all done
I doubt it will be ready next year, I reckon I've easy got another £10k to spend, which is gonna take time.
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How crazy does it look here [emoji48]
Visited Ben at Hangar 30 the other night to see the progress and get measured up for seat position and door bars.
It's looking great
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Cage will be tagged to 8.5 sec but on top of this he's adding a driver cell, just for a bit extra safety, next step up from 8.5 is 7.5-8.49 which looks pretty much like a Pro-mod cage and would involve cutting the floor pan out, if I ever got to the point it did 8.5 I think I'd be looking at starting on another car with a lot more safety cos that shit is shifting!
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Very nice cage looks like its coming on well
Safety cell looks great. Does it not need to steer at all?
It won't have great deal of lock but we are yet to add more width to front track and some castor which will give a bit more room for wheel/tyre movement.
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Crazy. Awesome. Love it.
Had a bit of downtime at work so made a start on some of the electronics.
Been making the initial part of the loom for a while now, got a connection to Ecu and some flying tails with a comms port and CAN connection.
Rigged up a fused 12v supply, managed to get the Ecu talking to the laptop and even calibrated both the air temp and coolant temp sensors, got the data live on the screen so happy with that, it's certainly a start to what's going to be probably the hardest part of the build for me.
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However there is a lot more to it than just the Ecu, all these devices need wired in and have there own associated inputs and outputs, luckily the devices talk to each other over CanBus which is a simple two wire circuit between each device.
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Sweet. Look forward to reading more about this. Not clued up on canbus at all so any info and experience is welcome.
CAN, no bus :p lol
The harness is "easy" but time consuming to get right/tidy etc
Its a lot simpler if the Dash will read direct from the ECU from a simple comms port.
I know I know, CAN stands for Controller Area Network. The bus is what you use after a night on the piss. lolQuote:
Originally Posted by Stuart
Why you saying no BUS?
A bus (including the kind you get on after a night on the piss) is simply something that carries something from one place to another.
The network is using a BUS to carry information, a twisted pair of wire.
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I believe it's a not so clever play on words.
Grow up Stuart.
The Ecu, dash, expander and CDI unit can all talk to each other over Canbus, it's fairly simple.Quote:
Originally Posted by c20tbo
I'm hoping by the time I come to need it the AMS boost controller will have the ability to talk to the MoTec also.
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Always get this lol
Does control area network bus, sound right to you? Plus it was alway and is always (in the automotive engineering world) just plain old CAN, the bus bit was nailed on the end by marketing types. Yes individual networks are referred to as busses and the term bus on and bus off is used but he name is just plain old simple CAN.
anyhoo, if you need any help with setting stuff up in the bytes/dlc/ Id realm, give me a shout as its what I used to do with the exotic cars etc I worked with (automotive electronics and systems engineer, now working on crappy rail projects)
Well it's definitely something I'd like to learn more about, if you know of any good online sources? one thing I'd very much like is to be able to get the AMS boost controller to read the CAN between the MoTec devices and pull the data from there, NLR who make the AMS say the capability is there to use CAN but it's not been fully implemented yet.Quote:
Originally Posted by Stuart
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I'll see whats about, but when I've looked in the past online resources for CAN have been pretty vague/poor :( There is a little on megasquirt forums etc but they tend to aim at a protocol called CANOpen (or OpenCAN, cant remeber which way round it was) which aimed to simplyfy an already very simple system, and ofcourse made a lashup of it lol
Sounds like NLR have put the hardware in place to use CAN but not written the code. Are they UK based? and would they want some "help" to get it working on their system?
I found very little online myself, even looked for online courses I could do.Quote:
Originally Posted by Stuart
NLR are American based, he's a very clever guy from what I've seen but I think the code writing he has someone else who does it, I could certainly ask him but when I last asked when CAN would be available he said there about to roll out V4 software update then CAN is one of the next things to look into.
Would be great if the AMS could view all the sensor information from the ECU over 2 wires instead of extra wires for every sensor.
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It's nice and simple if AMS can tell you what format they expect the data to be in, and if they ahve particular ID's they want etc. or even better if its configurable.
Might start a thread where I brain dump what I know of CAN lol
I'd subscribe !Quote:
Originally Posted by Stuart
Can't imagine many Novas using Can [emoji23]
I'd even send you some beer money, knowledge is valuable!
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Just stalked the kit you have from MOTEC and their documents, seems they are well setup for CAN (makes sense really) just a little vague as to how their software sets it up, but its not hard to spy on the network if you fancy dropping another £250 on a KVASER CAN-USB interface from sweden (https://www.kvaser.com/product/kvaser-leaf-light-hs-v2/), then you have a very useful tool for watching whats going on in there to make NLR's job way easier :D
Oh wow, KVASER updated their site with this gem
https://www.kvaser.com/can-protocol-tutorial/
I'm not writing anything now lol
The only caveat I'd put on the MOTEC docs is that they say you need a 100ohm resistor between CAN H and CAN L, but 120ohm is the "norm" for very stable operation.
How does that work then?
I assume that's a 'sniffer' that I've heard of.
Connect it to the bus and it detects messages ?
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pretty much, you can also send messages too if you want to test something
No idea if there are cheaper/homebrew tools like this but as far as "industry" goes, Kvaser are the cheapest while still being regarded as good. Dont even look at Vector prices lol it'll make motec look like cheap tat :D lol
Had a CAN discussion today, he refused to say BUS too [emoji23]
I think network and bus are very similar items without getting into the nitty gritty of there definitions.
Also got into a huge and rather heated Facebook post over wether I need the AMS boost controller and why the MoTec can't do it alone.
Too much to fully explain here unless someone actually gives a damn.
Spoke with the owner of NLR who make the AMS and CAN is last on his list to do, annoyingly [emoji20]
But on another note (and project), I got the Broon Loon home
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Whats the plans for the brown loon
Id love one
Breaking it, I've got a brand new saloon shell to build, this brown one only has 14k miles and been in a garage since 97, everything is like new, except the chassis.
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Is the shell goosed like mate . Only ever had one loon and sold it dirt cheap always wanted another
Lol why you needs extra boost controlzzzzzz tbh I wondered too, but don't care as its your build and your plans etc so if it works it works.
shame nlr aren't looking at CAN :( I'd offer help if he wants etc
I asked that and said you offered but he totally brushed over the offer, he has other things he wants to roll out before the CANQuote:
Originally Posted by Stuart
I have heard of these little Gizmo's that take an analogue voltage and put it out over CAN
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Isn't that what one of your motec boxes are, the e88 or something?
Some time ago the MightyCarMods boys did a Subaru estate with an EJ36 engine (quad cam flat 6) with lots of Haltech modules in it. Seems to me these modules do something similar i.e. convert an analogue signal into a CAN signal. Having said that, I am under the impression not all CAN signals are interchangable and that you can't go mixing and matching CAN boxes of different makes.
The E888 is an expander, gives me a bunch more inputs, not that I needed them but it does take upto 8 thermocouple inputs which the Ecu can't do, so I'll be monitoring exhaust gas temps per cylinder.Quote:
Originally Posted by Stuart
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Yeh I've seen the Haltech and racepak stuff use al separate little modules to make up a network, why I'm not too sure, seems a long way to do things.Quote:
Originally Posted by nova_niek
Again my CAN knowledge is basic, but I believe as long as you can get the devices talking the same language at the same speed on the same network you can get anything to talk, it's finding those details that's a bit tricky.
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Supergramps!Quote:
Originally Posted by nova_niek
i read the manual for that and it implied you can drive some outputs over CAN too.Quote:
Originally Posted by heds
niek, you're right that not all CAN is equal, as there are speeds, addresses, data layouts and message lengths at hand, but with the sniffing tools like kvaser you can work it out fairly fast, or use the Internet as many are well geeked lol
Bens doing a fab job, see what I did there [emoji13]
Very happy with the drivers cell
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Certainly going to feel a lot safer climbing into here than before
I bet that wasn't the easiest piece of tube he's ever shaped
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Looks the bees knees that mate. You going for tubed rear end of car aswell ?
Have been enjoying your pics on Instagram. The driver looks nice be safe now