It’s alive and dyno’d!
I got it running last week, it was pretty nerve racking. The tapping noise is the ITB butterfly’s, nothing sinister thankfully.
@abbey_motorsport kindly squeezed it in last minute this week. We had some teething issues along the way. The ITB’s were trying to escape with each little cough up the inlet and the breather is woefully inadequate. Hence the contraption hanging off it 😂. All problems to sort out before a proper shakedown.
It’s an absolute screamer, genuinely deafening. Needs a new back box before it’ll get near a DB limit.
It put out 172bhp at the hubs, perhaps 190 flywheel. It might be a little off being a hub dyno and a torque-less engine. However, it’s probably fair to say it’s now hit the 400bhp per ton mark as it weighed in at 444.6kg 🤘🏻🤘🏻.
It has around 97lbft peak torque, but stays above 75lbft from 3000rpm to the redline.
Something a little different on the dyno yesterday! Still powered by a Japanese engine but a bike engine #hayabusa #gsxr1300 in a fibreglass mini! Revving to the moon! All controlled by a @link_ecu calibrated by @chrisjjm101 car experlty built by @jonnyf7 awesomely built car. Attention to detail is awesome. Small problem with breather system so we had to think outside the box for a quick fix! Going to be a rocketship! #mini #eatsleepracerepeat @abbey_motorsport@jonnyf7
Edit: it’s 444.6kg 👍🏻.
Come on then sports fans, it’s weighing time. What’s your guess?
A little hint… It was 510kg with a full tank previously with the A series turbo.
The best guess in the UK by Friday gets a mystery prize in the post from me and @jf3d_components
Wirings mostly buttoned up and I’ve been running through some tests. Even got it turning over 😍. Wheel setup is from @kitcarelectronics and it has allowed me to get away with only one hardwired switch inside the car for the battery isolator. Very simple wiring, just the logic setup to get my pea brain around.
Back in the shed after a trip to @bagsportfab for a Ti manifold. Onto the final push to get it going for spring. Plan to get it on some scales in the next couple of weeks 🤷🏻♂️.
Done it!! 10kg gone out the build up. All from parts I could have just used on it. This 514g saving that tipped it into 10kg has had a little thought…
The Vetechbusa shifter is round the wrong way to a conventional sequential shifter. Push forward to go up the gears, maybe on a road car it works? It just felt wrong when strapped in the car making pretend 11k rpm noises. Shame to bin the bracket I got CNC’d up but hey ho.
Decided on some 3D printed ti lugs with carbon 22.2mm seat post tubing. Glued together with MMA adhesive. Much like a modern bike frame 🤷🏻♂️. Finished off with an ODI longneck, even filled the bar end with lead for a little better feel.
The pivot is now under the rod, swapping the direction. Full race car now 🙈. Might revisit the mount off the cage as that still has remnants of the A series linkage.
Old 742g, new 229g 👍🏻.
Am on to wiring it up properly now, fingers crossed for a fire up soon enough.
Weight watchers continued. Titanium exhaust flanges. Along with hollow Ti bolts.
Pretty much a 50% reduction.
All these little bits soon add up time wise, good few hours in these alone. Drawn up on cad, 3D printed for a test fit and then sent off to be printed in Ti.
