Classic mini 16V turbo A series, 6 speed seqential
Discussion
AdamIndy said:
Epic engineering! Love it!
What have you done about a reverse gear gear? Or is it a case of get out and push?
It has a reverse gear, this was one of the hardest parts to sort, as I had to ad an extra idler gear to reverse the shaft and room was limited after everything else was in place! What have you done about a reverse gear gear? Or is it a case of get out and push?
I ended up using a splined hub from another pinion and the sycro hub and gear from the original mini first gear, the idler was the mini 1st gear with the teeth beveled as they are now a crash gear. The reverse gear is operated by an air piston inside the box.
This is the gear arrangement. With selector fork from another bike gearbox.
This was machined from solid, and contains the dual acting piston for shifting reverse. There is an interlock from the neutral lug on the selector drum for the neutral light. so you can't select reverse without the box being in true neutral, is basically the relay for the air solenoid can't ground without it.
Internals for air piston.
The air pressure is supplied up via an air pump (design stolen from the Bugatti air pumps), to a cylinder. The pump runs on the originals camshaft fuel pump lobe.
paulrandall said:
I regret selling my Mini on a regular basis.
Still hoping to get one again, but prices have recently gone crazy.
To think I picked up a pristine one in 2004 for £1,500.
The odd bargain is still out there, usually the unfinished projects are the best to buy. But ther are lots of rot boxes going for strong money too!Still hoping to get one again, but prices have recently gone crazy.
To think I picked up a pristine one in 2004 for £1,500.
guru_1071 said:
a lad at work had a screamer pipe stuck out the bonnet of his car
we carefully saved all the paper bits from out hole punches and filled it right up one day.
he got the shock of his life when it spewed them all out when he was giving it some.....
Haha, I put wire wool down the screamer at shows as I know it would be far too tempting for some people to drop something down there. we carefully saved all the paper bits from out hole punches and filled it right up one day.
he got the shock of his life when it spewed them all out when he was giving it some.....
A few more pics of the box.
Shifter mechanism.
Additional idler gear I designed, that has a thrust face built in on the inside to run on the bronze bush.
It also has an additional drop gear on the 1st motion shaft, and a second support bearing on the transfer housing too.
I haven't got any finished pictures of this, but it gives an idea...
The shifter is translogic electronic linear actuator, so it can be shifted either on the wheel or via the gearstick, with 2 micro switches in place. I have it all wired into my ecu, so the ecu does the shift cut, and anti lag kicks in, so I should hopefully be able to flat shift without using the clutch to on up shifts...well that's the plan!
Shifter mechanism.
Additional idler gear I designed, that has a thrust face built in on the inside to run on the bronze bush.
It also has an additional drop gear on the 1st motion shaft, and a second support bearing on the transfer housing too.
I haven't got any finished pictures of this, but it gives an idea...
The shifter is translogic electronic linear actuator, so it can be shifted either on the wheel or via the gearstick, with 2 micro switches in place. I have it all wired into my ecu, so the ecu does the shift cut, and anti lag kicks in, so I should hopefully be able to flat shift without using the clutch to on up shifts...well that's the plan!
This is Epic. Awesome skills. Subscribed and will watch closely just like "Project Binky"
Had a 1530cc proper mini years ago but was just unreliable (due to me getting different person to fit engine instead of builder).
I gave up on fast minis, sold up and got a EVO 9 instead.
This makes me want another mini again.. so so much, but it's got to be charged (like yours), couldn't go back to an NA car no matter what it is.... one day I will get another mini especially now I have garage.
Had a 1530cc proper mini years ago but was just unreliable (due to me getting different person to fit engine instead of builder).
I gave up on fast minis, sold up and got a EVO 9 instead.
This makes me want another mini again.. so so much, but it's got to be charged (like yours), couldn't go back to an NA car no matter what it is.... one day I will get another mini especially now I have garage.
big_rob_sydney said:
Would like to know actual performance metrics. Quarter mile would be good to know. Also very interested in stopping distances and lateral g. Should be a smartphone app somewhere that will do this for free.
The last time I took it out, I ran a 13.2 @ 115mph terminal. I was having issues with boost spikes and it kept cutting the ecu so I was limited on running on 15psi. It's mapped for 30psi and pulls well at that boost, just getting traction mid track is the problem, which is where the boost spikes happen. I have a 4 bar map sensor now, external wastegate and a mappable boost controller so I hope to be able to fine tune it all to work. The above was all on the standard 4 speed sycro box, and ive knocked 86kgs out of it since then so it should be good for much quicker times...hopefully!
zefal said:
This is Epic. Awesome skills. Subscribed and will watch closely just like "Project Binky"
Had a 1530cc proper mini years ago but was just unreliable (due to me getting different person to fit engine instead of builder).
I gave up on fast minis, sold up and got a EVO 9 instead.
This makes me want another mini again.. so so much, but it's got to be charged (like yours), couldn't go back to an NA car no matter what it is.... one day I will get another mini especially now I have garage.
They are good fun when turbo'd even on a standard 5 port engine. 150bhp is good usuable power, 200bhp + you need both sides of the road to put your foot down. Had a 1530cc proper mini years ago but was just unreliable (due to me getting different person to fit engine instead of builder).
I gave up on fast minis, sold up and got a EVO 9 instead.
This makes me want another mini again.. so so much, but it's got to be charged (like yours), couldn't go back to an NA car no matter what it is.... one day I will get another mini especially now I have garage.
j90gta said:
What top speed/acceleration figures are you hoping to achieve?
It has done a 13.2 on the 1/4 115mph terminal, but that was on half the boost its on now, so should be good for mid 12s. Top speed I am not too sure I have had 135mph out of it but it starts getting a bit unstable, it was still pulling strong so it will more than likely be the Rev limiter setting limiting it or my bottle. Dr G said:
When it's on the road do you think you'll be able to make it to one of the Sunday Service meets? I'd love to see this in the metal/carbon/ally 
The plan is to have it on the road next summer, it's been built to be street legal...I used to drive it down to Newquay and other shows regularly over the country regularly.Gassing Station | Readers' Cars | Top of Page | What's New | My Stuff