... <SNIP> Good luck, John... I've been asking this for years (along with the Bore/Stroke Vs. Ring Friction question) and, like you, have not got it answered. ...
I'm probably going to try and get a Motobi together for the AHRMA 200GP+ class for next season. I can run an unlimited 200cc (about 207cc with allowed...
... The rotational inertia is what you need, the mass itself is not so important. You could draw it up in CAD and hit the right button to spit out the R.I., or...
Ian
iwd@...
Dec 4, 2006 4:41 am
12888
I've got a number of new old stock pistons that came with the Motobi engines I bought some years back. It was my understanding that they were 250 Motobi...
OK I contacted the daughter-unit who walked me through the math. She really is learning something in college! At a first guess, using numbers I made up, the...
Hi Michael I suggest that the Lotus engine simulation software may give you some direction for your best intake port shape requirements. You can get it here at...
Thanks John. I've downloaded the software, as well as some of the papers they have available and I'll take a look at them. Have you tried the software and if...
Christian Sch. <hoodrewoodre@...> your return address bounces when I try to reply to your email to me (which only had one line (the salutation) in it, so...
Despite searching I cannot get any info on what the ignition curve for the LC8 engine is like, If anyone has the info or links it would be greatly appreciated ...
... Hello Kelvin, long and all that................ I've got an LC8 ( carburetted ) and would gladly run it up and check the ignition curve, but it won't be...
Ian
iwd@...
Dec 10, 2006 10:40 pm
12899
Ian, How'd you come across that engine? ie, out of a wreck or out of a crate and if you don't mind me asking, roughly how much would something similar cost to...
... Not engine, I've got the complete bike, a 950S Adventure, the first model with the full length suspension on it ( they've been shortening the suspension ...
Ian
iwd@...
Dec 11, 2006 7:37 am
12901
Nothing to add here, other than a question. Is there an ignition curve, or an ignition map? With the advent of ECUs, FI, drive-by-wire, sensors for ...
... You are correct, it is bound to be a 3D map, you would have to do 25%, 50%, 75% & 100% throttle runs on the dyno to see the difference. The TPS would be...
Ian
iwd@...
Dec 11, 2006 10:17 pm
12903
Almost Correct Ian Really does depend on the fuel injection system used. However if running carbs and a tps you would have a 3d ignition curve No TPS then yuo...
Any ideas? This is for a Bonneville record project, but it's on a real shoestring budget. The engine has no mechanical tach drive so electronic is going to be...
Hi, it's the Bonneville project again. As we contemplate convincing a pushrod engine (w-cast iron head) to rev to the moon, lighter valves come into focus. But...
2 options I know about: enduro dash from Trailtech includes tach and other stuff, about $90 I'll make a real cheap deal on my left-over Alfano lap timer which...
The electronic tach's off of mid 80's honda v-4's (interceptors/magnas) are really simple, one wire to power, one to the points/ignition pickup. One signal per...
Get an inductance tach. To hook them up you fasten the lead wire along one of the spark leads and it picks up the pulse. However, you have to run a coil(s)...
jrc, Sometimes titanium will tolerate running against cast iron but other times it wears through it in a manner which has to be seen to be believed....
... I know I had hells own trouble getting the Blackbird box to drive a stand alone tacho on the little hill climber I built. A friend ( who knows of such...
Ian
iwd@...
Dec 13, 2006 1:54 am
12911
I was surprised at how simple it was to hook up the VF500 tach to my CB400F when it was running points. I just tapped into one of the low voltage leads running...
... In bikes, all forged - except Royal Enfield in India, they were using cast flywheels up until a couple of years ago ( & prob still are ). Cars still use SG...
Ian
iwd@...
Dec 13, 2006 9:19 pm
12914
Ian, What does SG mean ? Ken A ... ____________________________________________________________________________________ Any questions? Get answers on any topic...
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