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VitesseEFI

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Posts posted by VitesseEFI

  1. Some interesting work by Alan there. Thanks for finding the links. I’m reminded that I was planning to revisit this using an actual engine, measuring actual valve movement, all relative to crank degrees, with a selection of cams…. I’ve shot myself in the foot by selling the block I was going to use though….:( (idiot!)

    • Like 1
  2. On 11/08/2023 at 08:18, Muncie said:

    I went through training to handle batteries at Rocket Lab the lithium polymer batteries in those are terrifying. Directions in the event of thermal runaway was basically hop in your car and leave and take everyone with you.

    Brother took his team to training a couple of months into their project after a near-miss. 
     

    After establishing what they had been doing and their project aims the guy doing the training was like “wtf, it’s a miracle you are all here, and with all your limbs/digits too, you should buy lottery tickets!!” Fair to say their working practices changed!

    • Like 6
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  3. I missed that whole exhaust thing and the “gearboxing” at the time. Just wasted 10 minutes catching up. “Wayno is a total dicko” is my conclusion and eventually got what he deserved.

    Meanwhile, in the real world, the gearbox scrapyard mission looked very familiar (though these days I’m too old and grumpy to play in the rain).

    The bellhousing shenanigans also look familiar.  I’ve done two conversions to get modernish Jap gearboxes onto Triumph engines. Most recently this

    https://sideways-technologies.co.uk/forums/index.php?/topic/8925-mazda-gearboxes-some-bstard-told-me-it-was-impossible-so-i-had-to-do-it/#comments

    This also used an auto box bellhousing because it had a nice concentric recess and ring of bolts to work with.

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  4. On 04/08/2023 at 03:42, flyingbrick said:

    This is the EV thread so I'd like to assist with some balance to the fire argument:

    EV's catch on fire significantly less than regular cars.

    I'm sure thats a legitimate fact. like 30x less often or something. I saw it on facebook.

     

    HAH, here

    image.png.1afbed861c39cfb01789709811d3220c.png

    Yes, this appears to be true, for now at least. Which is just as well as they are really hard to put out if the pack gets involved.

    Wonder if it will continue to be true as the fleet ages and owners/users find new methods to misuse and abuse them.

    Brother is a fire protection engineer who started getting involved in EV battery manufacturing a few years back. He spent nearly a year mistreating batteries made by a well known UK OEM to see what happened. They managed to kill a couple of shipping containers in the process, but luckily the team all survived! His main goal now is to make the packs safer by thermally isolating the individual cells from each other to delay/prevent the cascade kicking off. His current view is that within the constraints set (space/weight/cost), delay is possible, prevention probably not.

    His other observation (I’m not sure how well known this is) is that the intensity and duration of the fire is significantly affected by the state of charge, with a fully charged battery being far more aggressive. Also, they discovered by accident (someone gave then duff info!) that quite small deviations from the correct charging protocols can cause big trouble quite quickly. Apparently this is a major factor in many of the e-bike/scooter battery fires.

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  5. On 20/07/2023 at 20:57, Nominal said:

    Great name for a town.

    Yeah. Not really on topic but driving back in this evening we passed a parked VW transporter van sign-written “Jak Schitz” and something in German (presumably the service offered) in large letters. Regret I didn’t get a pic as driving. Was going trot back and get a pic as not far from our digs (Wif thought this was odd!), but biblical thunderstorm (another) intervened.

    PFT (from same place as last but restored)

    IMG_2113.jpeg.7bf1f1d8c44a6e84d913dcbb9e3631e9.jpeg

    • Like 5
  6. On 02/07/2023 at 00:23, yoeddynz said:

    I was after 3 bosch BIP373 ignitor drivers but its seems they've been out of production for a while. So the new alternative is this...

    Or use coil packs with built in igniters as used on lots of VAG stuff. 4 pot is really easy. 6 pot less common but they do exist.

    https://lowcostracingsolutions.co.uk/ignition-coilpacks-and-ht-cables/14-wasted-spark-coil-pack-with-internal-igniters.html

    https://www.ebay.co.uk/itm/183509104076?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=pfWVgpugSlK&sssrc=2349624&ssuid=L4l_9R0bRTe&var=&widget_ver=artemis&media=COPY

    • Like 3
  7. 8 hours ago, Roman said:

    Yeah that flywheel is my next best option. However it doesnt have anything to hold a spigot bearing to support the input shaft which the rwd gearbox needs

    Got to be possible to get around that provided the g/box input shaft length is in the ballpark. I’ve opened out the centre bore on a couple of my Triumph flywheels to take a small bearing as favoured by Toyota and Mazda. Cheap and fairly easy.

  8. Ah…. Similar to above I’ve seen “flywheels” offered for manual conversions on V8 Audis which retain the flex plate for the ring gear and timing ring , just adding the minimum material to attach a clutch to as a bolt-on extra. Bolts to the crank with the flex plate sandwiched between them. Very light and (relatively) cheap.

    • Like 3
  9. 10 hours ago, keltik said:

    My wallet is thoroughly beaten and bleeding.

    Is there a “hobby” worth doing that doesn’t make your wallet smoke from time to time?  Boat is looking really good now. Quite envious.

    Sailed a bit in my late teenage, though mostly only dinghies, with a bit of occasional crewing (my version) for someone with a 25 footer around the Solent and IOW. Liked that. If I lived in your part of the world, the temptation would be strong!

    • Like 1
  10. Yes. Weasel words. Zero emissions at point of use. Apart from the particles from tyres and brakes.

    Emissions from manufacture are significantly higher than IC engined vehicles. Emissions from generation of power to charge the batteries is obviously variable according to source.

    I include this link mainly for the links contained within it

    https://sideways-technologies.co.uk/forums/index.php?/topic/9009-electric-cars-and-life-cycle-emissions/

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