Adspeed wrote:Is this the 'big spigot real deal' we've been waiting for?
I guess you mean a spigot of 78mm (or more!) diameter???
Harry Barlow's barrel (TS1-stylee) is available at 78mm spigot, hence the 250 casing sitting in my workshop at the moment (though it will be a while before I can afford to put it together). Harry has lined-up 71mm pistons from a recognised manufacturer with good quality rings. He may have bigger pistons too; I can't remember.
Adspeed wrote:Is this the 'big spigot real deal' we've been waiting for?
I guess you mean a spigot of 78mm (or more!) diameter???
It was a bit tongue in cheek really Martin......
Back in old 2008 we heard of 'Big spigot real deal' engines for the first time on here.......http://www.phpbb88.com/scooterotica/vie ... ooterotica Someones been pestering for a graph for one since that day.............oh yeh that was me . LOL!! I've pretty much give up now, or I've grown up don't know which. Maybe both!!
Heres the TS inlet I refered to earlier....
Anyway hope all is well Martin.......whens knowspeed.com going live?
adspeed, are you not keen on the big bore concept? or was it just that you couldnt find a graph?
my personal thoughts are that the long stroke works well if you can keep it from vibing too much. i went 60 stroke and 71 bore and dont think it made much of a diferance but a 64 stroke makes a nice motor.....again in my opinion.
guy topper s name keeps coming up in the long stroke scene, i would be interested to know more about his motors
cezeta wrote:adspeed, are you not keen on the big bore concept? or was it just that you couldnt find a graph?
my personal thoughts are that the long stroke works well if you can keep it from vibing too much. i went 60 stroke and 71 bore and dont think it made much of a diferance but a 64 stroke makes a nice motor.....again in my opinion.
guy topper s name keeps coming up in the long stroke scene, i would be interested to know more about his motors
I know some people like the idea of 'big bore', for me I'm not sure due to such things like the barrel studs, the port areas not available to really work with the increased cc's. Yeh it'll work and give results but when I think about it it only seems to imbalance the engine as far as volumes etc go. Take a look at the RB20 and IMO your getting closer to a balanced motor.
What makes the 64mm crank a nicer motor in your opinion?
lazy off the throttle power i guese and its long rev range from 2k - 8k just makes nice long gears up to a genuine 80 or can sit back at 30 in the same gear.
its no racer but then hardly anyone on here is either including me so its suited well to the use it gets as a mile muncher.
i cant put my finger on it but it reminds me of a 70s jap single like a dt400 twin shock or similar in its power delivery.
i agree with you regarding the stud spacing though, you wouldnt get a time cert in the metal thats left over on the 72mm bore barrels. may as well compramise with 71mm on a normal spiggot barrel.
cezeta wrote:lazy off the throttle power i guese and its long rev range from 2k - 8k just makes nice long gears up to a genuine 80 or can sit back at 30 in the same gear.
Don't take this the wrong way but the above sounds like it refers to the level of tune, your complete engine rather than the fact its got a 64mm crank in, sounds like the engine ticks your required boxes which is great.
Hearing what you like Cezeta I'm pretty sure the Super Monza will give you a boner! So is it really down to the stroke. Jack a TS up to suit a 64mm crank (which I've seen done ) and the port times go through the roof and it ain't 'lazy off the throttle power'.
The 'lazy off the throttle power' surely has to come as a result of the whole complete package, tune, pipe, etc etc
I look at the actual cc's that have to be shifted through the available port area and wonder if max cc's is the answer....Just IMO
I have a secret solution, it is a lo-hi revving motor with long-short stroke crank, and it can flow large amounts of A/F through a 22-34mm carb into the HPC-LPC crankcase, via a new variable port/time/area system that I have designed, and is scavenged through the new 'Dan loop' system across a domed/flat head piston and out via the clubman expansion chamber that I have designed. It has a 'variosonic' gearing kit, variable spark timing ign system, which is programmed by an advanced retard (lovely lad), and varitract adjustable inlet tract diameter/length/angle system. The exhaust stub nuts are gold wired and imported from far away, I can’t tell you what I torque the cylinder head down to because that’s a race secret, but I use ceramic one-way gaskets, 300 degrees exhaust timing, secret boost ports and a feeder-bridged inlet to minimise piston-cock and maximise gas loss. Rev range is -3000rpm through 20k rpm, but it only makes peak power for 99% of that, however its a stump pulling, train driving, p155 pulling torque monster....it makes a 5 litre turbo diesel look like a 2-stroke scooter from the 60's.
I am willing to sell on my secret kit, but I will show secret plans at trade fairs first, will release images on the internet, and then not release the actual kit for 5 years, and when I do......it will blow up through lack of R&D and lack of any real understanding of petrol being a coolant as well as a fuel.....but hey, business is business.
Speaking of which it will be priced between £5 and £5000 depending on spec and gullibility.
It never breaks down, is made form NASA grade plastic, can be built by a blind chimp and it come pre-de-jetted, guaranteed not to need dyno-bollox unless you want it to run right, up-tight and outta sight. VE (virtually everyone) will be trade distributors to the official-unofficial market, but they will drag you through the coals to get an account, whereas anyone else will sell it to you cheaper in Euros through the front-back-grey door.
But we don’t endorse that version, because my pal doesn’t get a cut and it has the wrong port timings. And your dyno reads lower/higher than mine, which is wrong, unless it’s just a guide as a bench mark, in which case it’s right.
We don’t have any dyno graphs for the secret kit, but we expect 90bhp for the tourer and 23bhp for the race spec. Unless Dan's riding, in which case he gets 13bhp in case he breaks his leg again....tosser.
The kit will however, run a RABBITBOOT clutch system, and we recommend anyone but Mopeducation for your dyno run......they don’t have the secret secrets, we do, and our secrets are more secret than your secrets and their secrets. Unless of course you have ever looked at a fast jap 2-stroke.......................in which case we are all s**t. That Honda bloke knows f@@k all, I invented Honda, and Yamaha....never heard of that before.
I hate him, he hates me, I’ve not met him but he sounds a c**t. He knows fu k all, he charges too much, he won 3 races last season, I’ve been doing it all longer, better and harder, and that other blokes is rude as f@@k, doesn’t give interviews and charges a fortune...therefore he must be good, unless of course that other one beats him, with his new fangled methods...in which case, he can have my cash....I’m fickle like that!
Sigh…………
When you were young and your heart, was an open book, you used to say live and let live.....ya know ya did, ya know ya did, ya know ya did....
And...thats just the Mk1, wait till you see the V2 with dowelled inlet manifold!!! You'll sh1t sparks!
Although it doesnt have the same WWW-force reed block with constant velocity inlet as the MKV3.....but you gotta break a few eggs if you wanna make an omlette right?