[Bruce CurtisMember]

OK 2T are dinosaurs like me .

I’m dropping this cause it’s too smoking hot in this chamber ….besides everything old is new again and this I know for fact and that’s all that matters ATM.

i STILL LOVES YA’S all, especially you our token 4t riding closet 2T loving Pommie with the appeal of Robbie….luckily I don’t swing that way.

Now back to our scheduled programming…………………

[Bruce CurtisMember]

I just threw a yamaha one away, not the longest lasting filters I’ve ever seen, but reglueing? there’s a bit of Scots’ in you isn’t there moi laddie?

BC

[Bruce CurtisMember]

I was actually just thinking I hadn’t taken my tablets today…. nah i reckon this whole subject has got us all (the thinkersthat is) thinking and maybe a little impatient, so we start to tear at each other a bit waiting for the next installment.

All good having a green t and a smoke now….

BC

[Bruce CurtisMember]

Maybe Fellow Old bull, but I really do think a high stressed motor would be a better test bed than a lower stressed unit.

Sometimes the 4T sales push bugs me as the aftersales spinoffs is a huge factor in why they did the “let’s make a 4 stroke that acts like a 2 stroke, and tell them all it’s a good thing they must have”, now i appreciate a decent thumper probably moreso than the next bloke, I love my big singles, but why bother with a screamer that lashes the valves to bits and stretches timing chains quicker than a rubber band, and has rings thinner than a mosqitoes dik, and then hobble the 2t by making it run against capacities almost twice it’s own, to con the masses the 4T is actually competitive… what a load of Bullpooh.

Be like making the fastest 7 year old BMX rider in the region race the 10 years olds… (actually I make that comparo because it happened up here to my son, too fast for all the others in sprocket div, so he got to ‘accidentally” be placed with the older kids at a regional meet, he gave up BMX the next day, not cause he didn’t win, but because he got knocked off, ran down and intimidated)

BC

[Bruce CurtisMember]

Mmm Moto far too defensive young padawan, congrats on the 200 bud, you’ll love the crisp power, the lightweight, the smile factor. Now i never said you were the 4T rider i was referencing, but we all know them… Oh yeah my 4T is the dux nutz, better than anything else and it doesn’t need rings every ride…..
usually on the lastest bike in all new gear, with an all-knowing “I read ADB” attitude.

Now you’ve got a bike finally that doesn’t overcompensate for your manhood, you can begin to really enjoy your riding, and yes i agree it would be a good testbed.

BC

[Bruce CurtisMember]

Oh but young Moto, i beg to differ, the aim for I is not to gauge weather it is of use to purely your 4T 450cc/500cc riding middleaged bloke who can’t use all the power he has anyway and tells me he rides a 4T for the benefits of maintence, but in applications where the power and wear gains can be more appreciated ie: smaller yet higher output per litre, more stressed powerplants.
besides I have two sub 100cc 2Ts in my shed and 1 250cc 2T, are you saying that I’m abnormal??

[Bruce CurtisMember]

Changed more tyres than I care to remember, including some that need a gantry to move, but i prefer not too if I can get away with it.

last time I actually paid someone to change a tube, but it will be the last time I pay anyone to change a tube, was a waste of money.

BC

[Bruce CurtisMember]

Actually moto, I believe it would be more appropriate to conduct the experiments on smaller more highly stress engines, these power gains (if any) and longevity improvements would be more measureable…for instance I know a bloke who was getting a whole new top-end put into his childs’ SX50 every monday after sundays meet, now while i’m not saying it was necessary the ongoing cost of that was horrendous, plus because of their very nature a smaller piston/combustion camber is usually inherently more efficient at burning the mixture, therefore to my logic more thermal energy is developed.
We were taught many moons ago that hotter can be better for power output complete burn and all that yada yad yada, but at what price to components???

I’m open minded on the whole idea as history has told us many great improvements have come from the backyard engineer… John Brittens name ring any bells?, and that was within our generation

Bruce

[Bruce CurtisMember]

Hey moto imagine if he had a ride on a RMZ450 they go and handle, maybe even his skin would turn yellow, and he could be the 6th Simpson… you know sorta like Homers’ dumber, uglier, more knuckleheaded brother.

BTW I like huskies too, even the ones with OHVs

BC

[Bruce CurtisMember]

That’s way cool TB, would settle the Power claims, although dyno’s don’t lie but they still can’t tell the whole truth, but probably would in this case. I’m also highly interested in the level of wear that occurs, you know like those fabulous claims Nulon et al made about engine life, but if these lads can extend the teardown frequency and retain exactly the same power characteristics I’m highly interested.

BC

[Bruce CurtisMember]

TB there may be a basic mistake you’re making here in comparing the engineering level that goes into a world class diesel workhorse that can do literally a million+ ks before a teardown and the development towards longevity that a “revised by the minute” small engine that has one design criteria, to win magazine shootouts and sell more units, I fall into these traqps of thinking which backs us into corners at times as well, I’m defintely not saying anyone is, but is it a possibility?.

there may indeed be bugger all improvement in this area to be done on a 15L 2000ftlb 600 hp evolutionary unit that costs an arm and a leg to buyand has sensors galore, but has that translated into the mass manufacturing highly fickle dirtbike arena, is there improvements to be had?

I could be wrong as i frequently am.

BC

[Bruce CurtisMember]

Ok a bit of research with a learned mate this afternoon, and Mr Rat, I know where you are at, I just don’t know how you’re doing it, there is limited space to play with unless we use gasket restrictors in certain areas as well, or maybe even more radical approaches, like cutting every second fin off the impellor like we used to do with drag motors .

Thinking in reverse about cooling systems actual functions isn’t it, so far the cart has been thought of as less important than the horse, but in fact the cart is the reason the horse has a job to do…

I love this stuff, it’s mechanics with your brain going back to real basics, and way way cool.

PUN INTENDED

BC

[Bruce CurtisMember]

Actually TB, an old superbike I was able to play with had flow restrictors in place of a thermostat, and this was a trick used on some road bikes back in the eighties, just a disc with a hole drilled in the middle placed in various parts of the system. Wish i paid more attention to that now, instead of what duration and lift the cams had, and what choke size was in the carbys……:blush:

BC

[Bruce CurtisMember]

Ok I promised not to get involved any further in this thread but i cannot help myself, many years ago one had wire in ones’ oil cooler cores to help the oil actually transfer heat to the atmoshere via the aluminium jacket, the wire was to interupt straight flow and cause a “swirling action, to add to this many moons ago I set an alloy 4 core showa radiator in a high perf rotary powered car at a 25 degrees neg slant so the air couldn’t just pass through it had to turn and force past the obstacle before it and therefore more air to more surface area of the fins/cores etc, it also had the benefit of being a huge radiator of exerting downward pressure to hold the car down at very high speeds, as the vehicle was well under 1100kgs wet weight.

Now to go back to slowing the medium down, this makes a lot of sense, and as also the coolant could be flowing “inside itself” like I s’pose a piece of resin cored solder, and be coll on the inner but hot on the outer… but this is all just surmising on my behalf with no actual science behind my thoughts.

BC

[Bruce CurtisMember]

menace wrote:

Quote:

moto, the prodical (Proctologists maybe??? ) son has returned…..

what happened to going to singas? did that happen already….

man time flies when youre not here:P

welcome back to my favourite pommaranian:laugh: :laugh:

Did u realise a Pomeranian is actually a husky for real, just inbred so much it’s got smaller and nastier….

BC

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