tomfromthenorth

Not bad for a phone job

White wheels would have set it off nicely :lol:

http://www.topgear.com/uk/car-news/lambo-740bhp-aventador-sv-2015-03-02 That looks pretty cool. Lambo do really well to make something so out there without it looking tacky. A body kit in that style would be naff, as would a ferrari, but that looks absolutely mean!

Welcome to the club mate :thumbup1:

For me it is simply a nice added extra that my car may be worth something, other than the ENORMOUS emotional attachment I have for it. If I, or any other forum member, had to unfortunately sell their car, after unforseen changes in circumstances, it would be nice to sell high rather than low if possible, a small compensation for the money you will never get (or expect) to get back. My Capri I sold months before prices went up 3 fold, I wish I hadn't done that, I missed out on thousands. My car is designed to impress and please no body but ME. I don't give a toss what anyone thinks of it as I drive by, if it makes someone smile or shout "give it a rev" well brilliant, I have cheered the world up a bit, the LAST thing on my mind is people saying "he must have some money about him."

Haha ^ I think there are plenty of cars on here that are worth £10'000. I wouldn't feel ripped off if I payed that for Si's car, or Gary's or your's Joel. Those were just the first few that came to mind. Wether they are 'worth' that is subjective at the end of the day, but if you can pay £10'000 on an average bmw or a new hyundai I10 or a highly strung RX7, you should be happy driving away in a nice Zed.

Thankfully I dont see myself selling mine, it would take a few big unplanned changes in my life to necessitate that. :clover:

Fairly hot topic atm, we know they're thin on the ground but these ones are certainly showing the rising trend in price. http://www.carandclassic.co.uk/list/84/300zx/ Rare Vert there for those who like them. The manual NA looked a respectable car, I only skimmed over them though.

Slow news day on the forum :lol:

Hi mate, welcome to the club, that is a great power level, hope that it serves you well :thumbup1:

Yeah that is one of the things I watched, it is really good, but I did read most of the internet yesterday :lol:

Last one :) just read into sequential, that property in isolation is simply a beautiful system of gears and linkages to make the shift selection a fore/aft motion. It uses a sprung ratchet rotating cylinder but is basically just a different set of levers and rods. However I imagine these are almost always sold as straight cut and dog engagement as well.

Dog engagement, this is instead of synchros, the engagement is like lego bricks coming together, you slam it across, it has coarse male and female castelation on the gear faces that lock together hard. Black or white, it is either in or out. But if you don't smack them together you will knock all the knobbles of your lego bricks and knacker your gear box!

Yeah you are right, it is the constantly meshed gears that are either straight or helical. The shape of the teeth can vary by price application and manufacturer from what I read. Bit of a crude drawing, as is the one coming below :lol: This one below is meant to show that teeth can be different shapes, I am no engineer and this is a doodle, but most are vaguely Toblerone shaped! But ppg sell ones that are pentagonal, the bottom doodle. This means they mesh smoothly for a slightly quieter sound with nore mating surface area and no axial thrust. The noise as I understand it is the noise of thousands of little claps as the teeth mate up. Imagine lifting a hardback book an inch and dropping it square onto a desk. It will slap, this is the Tom analagy for square cut. Now imagine just lifting one end of the book to form a sort of ramp then dropping that. It will be a more cushioned slap, more akin to the more gradual meeting of diagonally or helically cut gear teeth.

Straight cut gears then. This isn't really to do with the strength of the gears, arguably straight cut ones are weaker due to the lower overall mating area of the teeth. They overcome the problem of axial thrust, a consequence of helical gears. The axial thrust means that the bearings that locate the shafts need to be beefy, especially when you put 5 6 7 hundered newton flaps of torque through them. Your gearbox wants to go in 5 different directions when you go full boost in second! When the bearings fail the the shafts then go all wobbly, make a lot of noise then they really will go in 5 different directions! So straight gears, does not mean sequential, or fast shifts, just that the bearings are offloaded so your torque ceiling is higher. This axial thrust helical gear thing is used in limited slip diffs, it is also how a Sea King measures it's torque for the tq gauge, that is the answer we are told to give every year on our check, "helical gears sir!" :)

Synchros are entirely in the area of that shuttle locking collar. Their job is to guide the splines/teeth together so they mesh/dovetail properly rather than clatter face to face. They ar like tapered guides. Not only do they filter the teeth into a male vs female alignment, but they do this while gripping up the 2 shafts gradually. Slowing where necessary and speed matching the shafts. [ATTACH=CONFIG]85703[/ATTACH] "Tapered brass cones" would be the GCSE 1Mark answer.

Moderator I broke it ^ :oops:

I was at work yesterday and had time to read into all things gearbox. What Chris said above, "All gears are constantly meshed..." was a 'penny drops' moment for me. I understood about ratios and big/little cogs, what I really wanted to know was what the mechanics are inside, what moves and how do the cogs interact. Once I looked at a lot of pictures and saw the constantly meshed ratios, this is what made sense to me... The gears (cogs) on the input shaft and lay shaft are hard fixed to the shaft. However, those on the output shaft are not, they are on bearings and as such freewheel around the output shaft, driven by their counter gears. The way to engage a gear and lock a route through the gearbox is with the gear I have just drawn on above. That one 'is' fixed to the shaft and has a tube/collar around it that is splined on the inside and can slide left to right (on that diagram). It engages on the face of the gear locking them to the shaft. Like that ^ Or like that ^ - - - Updated - - -

A few times as a forum or portion of, we have ended up in a good discussion about how and why. I don't claim to be anything other than an enthusiastic learner but I love to know how stuff works. I would like to know more about gearboxes today. Let's get to the bottom of; The shafts inside, is it 3 in all gearboxes? Exactly how synchros work, double and tripple synchro gears? Helical cut and straight cut gears. Sequential and dog boxes. Can you get synchro sequential? I think you can? Let us pool our knowledge then I will write up a summary at the end. Ready, steady, google! :biggrin:

I was wondering that too, good thinking, so thick that it is transmitting torque.

Wouldn't it be too low? So even when you dip it it is only half letting go? I had a problem with my Capri where loose gearbox bellhouse bolts caused similar issues. Very difficult to engage first. It just wasn't all in line properly and was a bit too far apart.

I go to the Falklands on the 26th of July, bugger!

Cheers Dave, I got it all working in the end. A collection of little snags, drivers and sound setting things. I am using mixcraft now which is far more accessible than Cubase, I got some 3.5mm to 1/4 inch adapters and sorted the delay by direct monitoring from the focusrite using ipod speakers for the meantime. The only limiting factor now is my playing :lol:

Firstly, thanks again Dave, stuff arrived safely and it works. Now the thing that is annoying me. I got my post from the registry and was on the way to a mate's house anyway. He has an Apple desktop and Garage Band. My focusrite worked brilliantly as did the software, we rocked out, it was awesome, we were happy. I plug the stuff into my (bloody powerful) Windows 8 PC, like pushing poo up hill! Just an utter pain nothing works properly, there is a delay when I play, the focusrite software doesn't work at all, I downloaded Cubase which is impenetrable. I don't know how much time this will take me to get working properly but all the software seems very stale, very Windows ME in its design and not a patch on the intuitive Apple stuff. I am not really an Apple man at all but you know what, their stuff just works. :headvswal:

Haha that is awesome. Thanks Andrew :biggrin: