Author Topic: Twin Engine Panther from England  (Read 108077 times)

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Offline Calkins

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Re: Twin Engine Panther from England
« Reply #30 on: June 10, 2010, 07:33:35 AM »
Justin Calkins - Iowa Falls, Iowa  USA

Offline Seldom Seen Slim

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Re: Twin Engine Panther from England
« Reply #31 on: June 10, 2010, 08:10:13 AM »
Whoa!  That'll draw a few stares from onlookers.  Springer and hardtail and yet a four-spoke (not five, not three, but four) front wheel, and solid discs and a real sissy bar and a saddle seat and . . . and . . . and ...

Nope, I haven't seen a bike just like that in at least a long time.  Nice -- get it running and show us more pictures.
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Offline SUMO

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Re: Twin Engine Panther from England
« Reply #32 on: June 10, 2010, 09:27:37 AM »
Whoa!  That'll draw a few stares from onlookers.  Springer and hardtail and yet a four-spoke (not five, not three, but four) front wheel, and solid discs and a real sissy bar and a saddle seat and . . . and . . . and ...

Nope, I haven't seen a bike just like that in at least a long time.  Nice -- get it running and show us more pictures.

thanks, too kind - its basically shed spares that i gathered over years and eventually had enough for a bike...

i cant fit this one onto the rolling road so NEEDED to make a solo out of the bits to help with the twin ... :-D

i said i had a bad panther habit...

Offline Calkins

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Re: Twin Engine Panther from England
« Reply #33 on: June 10, 2010, 10:48:28 AM »
Justin Calkins - Iowa Falls, Iowa  USA

Offline wobblywalrus

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Re: Twin Engine Panther from England
« Reply #34 on: June 11, 2010, 02:51:28 AM »
Sumo, that trike has a distinctive round clutch cover.  Is that a sort of Panther/Vincent engine and trans setup?  It kinda looks like a Vincent Comet made on a working man's budget.  That is a nice job.

Offline SUMO

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Re: Twin Engine Panther from England
« Reply #35 on: June 11, 2010, 05:01:27 AM »
panther actually shares common gearbox with a vincent [burman BAP]

i dont think it was so much a "working mans" vincent - thats pretty funny really.. ill mention it to a vincent owner - they'd linch me... the trike is pretty much a stock panther m100 as far back as the seat then it got fun

the british bike industry has a lot of shared parts over various marks back in the early years. think lucas bht etc on the mag side of things and it just follows through to gearboxes

Offline SUMO

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Re: Twin Engine Panther from England
« Reply #36 on: June 12, 2010, 07:04:08 AM »
started on the drive side - got the actual drive system sorted from front to back in my mind just need to fabricate so no great shakes hopefully

here lies my main problem

supercharger runs the wrong  direction... centre blower pulley to centre of front engine pulley is about 11" [blower just propped on angle iron at the minute for measuring purposes]

to reverse its direction i was going to just run solid gears, simple thinks I - but they would be HUGE i now work out - and these engines have enough flywheel effect as it is.

i dont really want to go the crossed belt route

4 gears in a row would eat into my projected 40ish bhp [see why nobody has gone with a panther for speed yet?  :-D ]

what else options are there? oz was saying that you can reverse the supercharger internals but its a mare to time up right although a few people seem to be running them in backwards too with reasonable success [ http://www.thefang.co.uk/eaton.htm ]

any ideas / insights appreciated

« Last Edit: June 12, 2010, 07:14:52 AM by SUMO »

Offline Peter Jack

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Re: Twin Engine Panther from England
« Reply #37 on: June 12, 2010, 08:44:26 AM »
If you have access to a machine shop, building a gearbox using a pair of quick change gears should be fairly simple and relatively cheap.

Pete

Offline octane

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Re: Twin Engine Panther from England
« Reply #38 on: June 12, 2010, 10:25:54 AM »

supercharger runs the wrong  direction...

Hi Sumo !

Brilliant build. A bit wacky, but to me; the wackier the better.
Tell me: what supercharger do you intend to use ?
Is it an EATON , as the one shown in your link ?

Cheers
« Last Edit: June 12, 2010, 10:27:39 AM by octane »
"A designer knows he has achieved perfection
not when there is nothing left to add
but when there is nothing left to take away"

Antoine de Saint-Exupery

Offline SUMO

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Re: Twin Engine Panther from England
« Reply #39 on: June 12, 2010, 10:51:07 AM »
hey octane - yea its the eaton in the pic

ive been thinking while pottering in the garage the last few hours and i think im going to have a crack at reversing the direction the blower drives. worst that can happen is i knacker it... it was cheapish anyways - its the right way to do it then i can just run another belt up to it

Offline octane

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Re: Twin Engine Panther from England
« Reply #40 on: June 12, 2010, 01:16:45 PM »
hey octane -
My name is Lars

.-)


Quote
yea its the eaton in the pic
OK I see. So it has those fancy efficient screw-type rotors.
My blower has the 'straight'-type and is reversible.



Quote
ive been thinking while pottering in the garage the last few hours and i think im going to have a crack at reversing the direction the blower drives. worst that can happen is i knacker it... it was cheapish anyways - its the right way to do it then i can just run another belt up to it
Probably a good idea and it doesn't appear to be terribly complicated.
Sumo; please PM me, and tell me your email-address.
I have a file on supercharging motorcycles that I'd like to send to you.
Might be helpful.





PS
Please be careful what you do.
A friend of mine recently put a rather large blower on his Norton Atlas.
He just send me these pics





PHROUUUF KAR POW !!!

...one seriously blown Norton







« Last Edit: June 12, 2010, 01:19:36 PM by octane »
"A designer knows he has achieved perfection
not when there is nothing left to add
but when there is nothing left to take away"

Antoine de Saint-Exupery

Offline SUMO

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Re: Twin Engine Panther from England
« Reply #41 on: June 12, 2010, 01:30:58 PM »
cheers lars

thats a nasty looking engine failure . im looking at fairly low boost

i saw those aisin superchargers but they are always beyond my budget. the eaton is a car take-off with delivery mileage on it so its basically new but got it cheap.

Offline octane

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Re: Twin Engine Panther from England
« Reply #42 on: June 12, 2010, 01:46:53 PM »
cheers lars

thats a nasty looking engine failure . im looking at fairly low boost
Me too !!!

Quote
i saw those aisin superchargers but they are always beyond my budget. the eaton is a car take-off with delivery mileage...
I absolutely sure that the EATON is a much better and vastly more efficient supercharger.
Unfortunately they don't come small enough for my tiny 600cc bike.
"A designer knows he has achieved perfection
not when there is nothing left to add
but when there is nothing left to take away"

Antoine de Saint-Exupery

Offline SUMO

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Re: Twin Engine Panther from England
« Reply #43 on: June 12, 2010, 02:25:51 PM »
thanks for the email - will print and read and learn  :cheers:

Offline JimL

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Re: Twin Engine Panther from England
« Reply #44 on: June 13, 2010, 12:20:39 AM »
Jerry Magnuson has a "countershaft" setup that's used on the Vette kits (with Eaton blower).  It gets the blower belt to the other side, without having to reverse the rotation method.  Pretty simple setup, and known reliable.

Fun project!!
JimL