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| Home > Show Us Yours! > K1100 16V Turbo build...now transmission build. | |||||||
 8297 Posts Member #: 408 Turbo Love Palace Fool Aylesbury |
12th Jan, 2012 at 08:23:41pm
On 12th Jan, 2012 minimole23 said:
On 12th Jan, 2012 matty said:
I'll just take it easy to start with, then gradually give it more and more abuse/boost. Kind of like running in an engine. You have more self control then me then, I'd be straight in with the planned 25psi you have been hinting at! Haha 25psi was soo last year. :) Ive been limited to 25psi by my map sensor, but ive just finished fitting a 400kpa sensor, so that should be problem solved. 
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 9502 Posts Member #: 1023 Post Whore Doncaster, South Yorkshire |
12th Jan, 2012 at 08:25:19pm
On 12th Jan, 2012 matty said:
Im putting it straight on the turbo. I'll just take it easy to start with, then gradually give it more and more abuse/boost. Kind of like running in an engine. If all goes well, and its still working next winter, I'll take it out for an inspection to see if everything looks ok. i would hit it with everything my engine could muster at least then i would know its up to the job
Yes i moved to the darkside |
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8297 Posts Member #: 408 Turbo Love Palace Fool Aylesbury |
17th Jan, 2012 at 09:31:38pm
I got a call today to say my gearbox shaft is ready for collectiong...result! Finally I can make some more progress on this. https://www.facebook.com/pages/Fusion-Fabri..._homepage_panel
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4314 Posts Member #: 700 Formerly British Open Classic The West Country |
17th Jan, 2012 at 10:01:22pm
Fantastic, can't wait to see how you get on Isambard Kingdom Brunel said:
Nothing is impossible if you are an Engineer |
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 11046 Posts Member #: 965 Post Whore Preston On The Brook |
17th Jan, 2012 at 10:34:02pm
On 12th Jan, 2012 matty said:
On 12th Jan, 2012 minimole23 said:
On 12th Jan, 2012 matty said:
I'll just take it easy to start with, then gradually give it more and more abuse/boost. Kind of like running in an engine. You have more self control then me then, I'd be straight in with the planned 25psi you have been hinting at! Haha 25psi was soo last year. :) Ive been limited to 25psi by my map sensor, but ive just finished fitting a 400kpa sensor, so that should be problem solved. Wont be long matty before I'm up and running with the latest software. I'll let you know when I'm in a position to bring you up to date. LOADS of new features !!
On 26th Oct, 2004 TurboDave16v said:
Is it A-Series only? I think it should be... So when some joey comes on here about how his 16v turbo vauxhall is great compared to ours, he can be given the 'bird'... On 26th Oct, 2004 Tom Fenton said:
Yep I agree with TD........ |
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8297 Posts Member #: 408 Turbo Love Palace Fool Aylesbury |
20th Jan, 2012 at 09:33:28pm
Oh no not more features! I still haven't got my head around the last lot. lol
Edited by matty on 31st Jan, 2012. https://www.facebook.com/pages/Fusion-Fabri..._homepage_panel
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4314 Posts Member #: 700 Formerly British Open Classic The West Country |
20th Jan, 2012 at 09:42:58pm
On 7th Dec, 2011 matty said:
Ive been having a look at the drop gear end, and I don't think its possible to ditch the idler gear now, as the spacing between the crank and input shaft for the gearbox is just too far apart and would still require to have some custom gears made up. 
Can you replace the drop gears with two sprockets & a chain? I'm sure I've seen it done on an A series. Isambard Kingdom Brunel said:
Nothing is impossible if you are an Engineer |
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8297 Posts Member #: 408 Turbo Love Palace Fool Aylesbury |
21st Jan, 2012 at 12:13:55am
Rob - I probably could, but im not sure I'd trust it tbh. At least with gears you know there is minimal backlash and no need to solve chain tensioning/stretch issues. Ive got images of a chain snagging as it comes in and out of tension between gear changes. https://www.facebook.com/pages/Fusion-Fabri..._homepage_panel
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 6745 Posts Member #: 828 Post Whore uranus |
21st Jan, 2012 at 06:45:06am
On 20th Jan, 2012 matty said:
Oh no not more features! I still haven't got my head around the last lot. lol I went to collect the shaft today, and all it all measures up apart from the were no grooved machined for my circlips...so ive got to wait until Tuesday for them to post now! Ive got my old bike shaft back and the centres between the shafts works out to be 64.74mm when they are tight together. Im tempted to work to the figure of 64.90mm to allow for backlash. Im guessing 0.15mm (6 thou) would be a good enough instead of working to 0.1mm (4 thou) backlash. Would I be right in thinking that a too smaller backlash clearance could result in oil starvation between the teeth? My main concern is machining/measuring tolerances and I wouldn't want to end up with not enough clearance? i wondered if it got a small clearance , could the gears get hot ,swell up a bit ,and bind up !! your welcome to come and look at my gearss in the crankcase matt ,and measure the backlash etc . Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM |
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8297 Posts Member #: 408 Turbo Love Palace Fool Aylesbury |
21st Jan, 2012 at 10:25:05am
I may well do that mate. There are a few other bits im unclear of that looking at a complete box would clear up.
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1425 Posts Member #: 690 Post Whore Norfolk |
21st Jan, 2012 at 11:55:42am
Matty, the tight static clearance is to allow for the expansion of the alloy under use which results in the gear backlash growing, a higher static clearance will result in too large a lash under use.
If Carling made Mini engines
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8297 Posts Member #: 408 Turbo Love Palace Fool Aylesbury |
25th Jan, 2012 at 10:40:24pm
John - Me and Robert had a measure up of the Honda box Robert had, and the backlash measured up to be 2 thou, but the tooth profile was ALOT smaller! I think I'll stick with 4 thou for the backlash in box though.
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6745 Posts Member #: 828 Post Whore uranus |
26th Jan, 2012 at 07:01:12am
yup ,freezing cold 3 hours outside pondering matts box !! Edited by robert on 26th Jan, 2012. Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM |
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1425 Posts Member #: 690 Post Whore Norfolk |
26th Jan, 2012 at 01:15:31pm
nice work guys - my measurement was to be fair applicable to my new gear train in the SC bi crank v8, the output shaft gear which meshes with the crank gears was designed by an ex Ricardo transmission designer of many years, I was lucky enough that he ran through all of the design process with me.
If Carling made Mini engines
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8297 Posts Member #: 408 Turbo Love Palace Fool Aylesbury |
26th Jan, 2012 at 01:41:54pm
Robert according to minispares:
Edited by matty on 26th Jan, 2012. https://www.facebook.com/pages/Fusion-Fabri..._homepage_panel
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8297 Posts Member #: 408 Turbo Love Palace Fool Aylesbury |
26th Jan, 2012 at 01:58:10pm
On 26th Jan, 2012 johnK said:
nice work guys - my measurement was to be fair applicable to my new gear train in the SC bi crank v8, the output shaft gear which meshes with the crank gears was designed by an ex Ricardo transmission designer of many years, I was lucky enough that he ran through all of the design process with me. looking forward to seeing some bits in a case soon Matty! JK Tell me about it. I went home on my lunch break to see if my shaft has arrived and still no sign of it! 
Im sending the box off for welding next week. Do you know of anywhere that has a list sizes of automotive bearings available? Im struggling to find some the right size and spec, and machining work will be on hold until I know what bearings im using.
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1425 Posts Member #: 690 Post Whore Norfolk |
26th Jan, 2012 at 03:32:09pm
Hi Matty, not sure if its any help but I use these guys quite a lot for bearings
If Carling made Mini engines
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6745 Posts Member #: 828 Post Whore uranus |
26th Jan, 2012 at 03:38:40pm
On 26th Jan, 2012 matty said:
Robert according to minispares: Evolution set is a 20tooth 1st motion and 25 tooth laygear 3 sync set is 22 tooth 1st motion and 23 tooth laygear So its either 0.8 or 0.95 My ratios would end up at: ..................... 3 sync ............. evo 1st : 2.847....... 2.705 ............ 2.278 2nd : 2.066 ......1.962 ............ 1.653 3rd : 1.578 .......1.499 ............ 1.262 4th : 1.291 .......1.226 ............ 1.033 5th : 1.111 .......1.055 ............ 0.888 6th : 0.965 .......0.917 ............ 0.772 So I reckon sticking with 1:1 work work out the best.
oh good thats a relief ,a 0.9 would be nice ,same 1st as a clubman and a higher top ? mayhelp to give more clearance in the quad gear area ! Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM |
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8297 Posts Member #: 408 Turbo Love Palace Fool Aylesbury |
26th Jan, 2012 at 04:14:03pm
Im running a 3.1:1 diff so I could always go to 3.2 or 2.95 to fine tune the overall ratios? I was thinking along the lines that a lower first gear would help reduce wheel spin as its not requiring as much torque to turn it from the engine? https://www.facebook.com/pages/Fusion-Fabri..._homepage_panel
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6745 Posts Member #: 828 Post Whore uranus |
26th Jan, 2012 at 04:31:25pm
yes id agree matt ,but a bit of lee way cog size wise may come in handy ,when trying to miss everything in the end case ? Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM |
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1391 Posts Member #: 1686 Post Whore Oxford |
26th Jan, 2012 at 04:33:43pm
An involute gear. Jack knight have dog gear sets cut in this configeration. Stronger then conventional gears certainly. Due to the rolling contact patch mostly.
On 26th Jan, 2012 robert said:
yup ,freezing cold 3 hours outside pondering matts box !! 
lots of good brain storming ,although my capacity for doing numbers in my head dissapeared lol,lucky matt was awake . the honda box has a much more sophisticated tooth ,with a curved face eg.. 
also , i think they may have more engaged teeth as well ,compared to the mini straights ,they looked bloody strong to me . dont forget the overall ratio calcs with those drops and first motion shaft gears matt !hopefully a diff change will sort it . On 19th Feb, 2011 Miniwilliams said:
OMG Robert that's a big one |
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326 Posts Member #: 1323 Senior Member |
26th Jan, 2012 at 10:55:44pm
and the next tooth is begining to mesh as the previous tip wants to take all the force
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8297 Posts Member #: 408 Turbo Love Palace Fool Aylesbury |
28th Jan, 2012 at 12:00:12pm
My new shaft has finally arrived! Edited by matty on 28th Jan, 2012. https://www.facebook.com/pages/Fusion-Fabri..._homepage_panel
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1226 Posts Member #: 9271 Post Whore Stoke on Trent |
28th Jan, 2012 at 12:12:29pm
Nice shaft one day boost will be mine!
On 10th Mar, 2012 Joe C said:
TBH peple stick it everywhere... and theres merits to each... |
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 12307 Posts Member #: 565 Carlos Fandango Burnham-on-Crouch, Essex |
28th Jan, 2012 at 12:43:52pm
that looks sturdy! On 28th Aug, 2011 Kean said:
At the risk of being sigged... Joe, do you have a photo of your tool? http://www.turbominis.co.uk/forums/index.p...9064&lastpost=1 https://joe1977.imgbb.com/ |
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