Love my Mark III - but how about a little more power?

Check out the Hogslayer DVD and trailers to give you some more options!!!
Mike

Brooking 850 said:

Jim, I am running 31 degrees of advance with a Pazon Sure Fire @ 4000rpm with a stock motor and Mk1 Amals with 240 main jets, doesn't seem to run out of puff right through the rev range and on the hills here in New Zealand, only thing was a bit of a backfire on the throttle off/downhill, but found a crack in LHS header which could account for this.
Have a set of JS Keihins arriving next week, at this stage the 850 doesn't have trouble passing like the original thread! That is the only thing I will have to compare to as haven't had it out against other Nortons at this stage
What are your thoughts?
Regards Mike

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That sounds good on that bike at sea level. There might be some very small gains that could be had if you had an ignition that could be programmed with a custom curve but not enough to worry about. Jim

john robert bould said:

Original post: Nothing wrong with the bike ...BUT, Its the BUT bit, OK i am riding behind a Dodge Ram 500 Bhp 7 litre V 8, The driver see's me behind with my 50 Bhp 40 year old bike, when i start to over take i can see a big grin in his rear view mirror, He Slams open all 500 snorting mustangs and i seen to go into reverse :cry: dear members how can i cope :?: should i put on an extra carb,super spark kit? or what :?:

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I suggest you raise the seat cover and slice a Hyabusa under it.

Aw shucks it don't take no 500 hp cage to out bee line anything Norton could field. My 440 hp/440 lbft 4800 lb cargo van could eat up my Combats in the 1/4 mile.
Yet I want to tease with 1000 hp 4wd rally and drift cars in their element on Ms Peel. What I dream about is having a big bad liter and a half 4 banger give me a little blip-jerk to indicate he/she's eager, then have them see Peels front tire retract up 3" from the surface to leap ahead in leveled dart flight out of sight w/o even down shifting. Its no game at all to play canyon games with those big corner cripples though. I'm still in 24/7 trace state years since I last experienced the corner G's of Ms Peel, can ya imagine the high it is to run out of power to go around harshly faster rather than be too over powered/un stable/ un stickable to handle much of it at all leaned. So what do ya want more power for - just entering open freeway traffics?

Look through all the hot rod threads on cars to bikes, best bang for the bux is to get port flow speeds up, how ever you do that by feeding it more, packing it tighter &or extracting more of it.

john robert bould said:

Original post: Nothing wrong with the bike ...BUT, Its the BUT bit, OK i am riding behind a Dodge Ram 500 Bhp 7 litre V 8, The driver see's me behind with my 50 Bhp 40 year old bike, when i start to over take i can see a big grin in his rear view mirror, He Slams open all 500 snorting mustangs and i seen to go into reverse :cry: dear members how can i cope :?: should i put on an extra carb,super spark kit? or what :?:

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JBR, next time this happens, just throttle off and let him go. If he wants to pilot a filing cabinet powered by an aircraft engine, your'e probably using around 10% of the pertrol he is... Who's grinning now?

Ok I've had to face how I'd add a wicked over whelming passing gear to find that a pair of walnut size rocket nozzles with 80% H2O2 power fed them is good for a like 3-400 hp thrust that don't depend on tire grip. Much bigger than that and a pressure suit needed or pass out and crash-die they found the hard way. Really did figure it out for Peel with stealth tanks in the hard saddle bags. Can only use that thrust for a few seconds at a time or 200 mph makes turns trouble some. To complex to fit ballistic steering thrusters.

Spip to 3 min count down. When I dragged pre Peel Combat the crowd went nuts too to see my old clunker giving its all. I assume similar when water injection version gets on line. BTW these things can smoke the tires because tires inertia can't spin up as fast as accelerating.

[video]http://www.youtube.com/watch?v=XhPP2slj2CY[/video]


more
http://www.the-rocketman.com/art-center.html

That rocket bike is far too impracticle... try one of these instead:

http://raresportbikesforsale.com/cleare ... superbike/

http://www.youtube.com/watch?v=NFGy-A68 ... _embedded#!

comnoz said:

Matt Spencer said:

If it had contact breakers , Id fit a BSA 36 Deg Advance unit and slightly tougher springs. AND decent TWELVE Volt ingnition coils .

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Why would you use a BSA advance unit? I have found a Norton looses power when the total advance goes beyond about 34 degrees on a low compression motor and less with high compression. A 10 to 1 motor likes about 29 at 4000 and 27 at 6500 with efficient ports. Jim

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Basically the Idea is to get more RETARD , so the thing'll run like a side valve off the cam . WFO without spitting you off .

500 rpm idle with the Mk 2s , and 70 mpg on a 300 mile trip overall :shock: Without errodeing the centre electrode
despite the 31 btdc setting and touring out at 100 Knots for a time ,the entire insides of the exhaust WHITE .
Wouldnt like to run an engine any hotter , why , it was almost like one of those rice burners . :? :roll: .

80 mph gait on the 23 T sprocket, throttleing down to 60 and daydreaming / sightseeing ,the speedo'd
read 80 the next time you looked at it . :lol: .
Slight stutter in transition around 3.200 ' wakeing it up ' but seldom when motoring .General impression
was piloting a Destroyer ( one of those Navy things ) touring suberbia around 11 to 15.000 rpms .
Generally motorists constituted mobile chicanes as their pace was ordinarily incompatable .
The olde ' clear road in front ' when moveing out , and a weather eye out and front brake covered in traffic . :|

Matt Spencer said:

comnoz said:

Matt Spencer said:

If it had contact breakers , Id fit a BSA 36 Deg Advance unit and slightly tougher springs. AND decent TWELVE Volt ingnition coils .

Click to expand...

Why would you use a BSA advance unit? I have found a Norton looses power when the total advance goes beyond about 34 degrees on a low compression motor and less with high compression. A 10 to 1 motor likes about 29 at 4000 and 27 at 6500 with efficient ports. Jim

Click to expand...

Click to expand...

Basically the Idea is to get more RETARD , so the thing'll run like a side valve off the cam . WFO without spitting you off .

But if you have 31 degrees max and a 36 degree advance you will be 5 ATC at idle. The glowing exhausts would look cool. Jim

OOPS , BSA units 30 deg .

Cant see any blueing . SS cams set 5 deg early , has come in @ 3.500
and needs a eye on the tacho at High rpms as it doesnt stop at 7000 .

Didnt map the ignition , but the heavier spring is free for initial movement on the light spring . ( Two Stage curve ) .
ran measured 8.7:1 C.R. Flat Top pistons .Look close youll see ' Norton ' is on the tank in Black .Wasnt a slow motocycle.