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Old 10-05-2013, 06:40 AM   #201
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Default Re: Blown 45 build

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Wide Lobe separation angle like 112 for scavenging. Lift and such cause its forcefed isnt as crucial as duration and separation, in my experience. Although i have little experience with blown bikes, I am assuming the theory is similar......


I could be full of shit and all f'd up too, and what works for my race car shit may not for the bike world...


Take that with a grain of salt.


Anywho, cant wait for the first fire up.
The info can't be far off the mark, then the people who really know couldn't resist shedding some light on the subject.

I seem to remember that separation on my turbobike was like 106-109.
I used to know alot more about this then i was building that bike but now it seems a bit foggy.
Anyhow i will dig in to that when i have a decent runner...
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Old 10-05-2013, 04:05 PM   #202
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Default Re: Blown 45 build

You are right about that.

I hope some with more on the ball will chime in as you get closer.


Video of it running please. Call it my Christmas present!
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Old 10-12-2013, 10:14 AM   #203
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Default Re: Blown 45 build

It's a bit slow in progress ...again.
But my tigwelder is in need for som tlc and i have spent alot of time improving on my shitty easteuropan boiler cause house heating season is comming up.

Anyway. The morris singlefire cables have showed up.
Heres some before and after pics:
Before, clean and classic look.


After a complete mess. But i will have to tidy it up when i know which cables go where.

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Old 10-12-2013, 12:46 PM   #204
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Default Re: Blown 45 build

Isnt it going to fire all at the same time?

If so trip folks out... One set to the left and one to the right.
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Old 10-13-2013, 06:08 AM   #205
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Default Re: Blown 45 build

The point is to not fire them all at the same time.
If i have understood it correctly:
The black tube on the cable where it splits into two is going send the spark to the left or to right every other time.
so the only way to know is to try to fire it up, if it fires youre on, if it doesn't switch the kables on the plugs and try again.


A cooler way to tackle this dilemma is to run dual mags with only one circuit breaker knock each. and run dual plugs in the heads. But it would be expensive and complicated set up.
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Old 10-13-2013, 01:44 PM   #206
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Default Re: Blown 45 build

I am going to try and make a spitter setup.....I'll let you know how it goes.


I'll try it out and send you the details.
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Old 10-16-2013, 02:50 PM   #207
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Default Re: Blown 45 build

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I am going to try and make a spitter setup.....I'll let you know how it goes.


I'll try it out and send you the details.

I'm dumb as a brick. But i'll catch up eventually.

Got the brake pedal set up done today. Changed the brakelinings. Being spolied by modern machinery i assumed that they would fit. ..no

Worked on them for an hour to get to the right radius. Iwas so close so i tried to slip them into the brakehub. It was a very snug fit. unfortunately they are now stuck. ...as a brick

Forgot to drag the camera along.

Moving on to
throttle arrangement.

Jaws. someone just listed an fully restored 36 vl for old shovel chop money here on "blocket".
you really should have lived here in sweden
http://www.blocket.se/helsingborg/HA....htm?ca=16&w=3
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Old 10-16-2013, 05:55 PM   #208
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Default Re: Blown 45 build

those splitters have diodes in them. the voltage at the secondary side of the coil reverses polarity every other rotation. the diodes separate the spark so that on one pulse it is directed to one plug and on the next it is directed to the other plug. you only need two of those splitters if you're running dual plugs in one head. otherwise you use one splitter on one tower for both plugs and ground out the other unused tower. got it ?
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Old 10-16-2013, 07:01 PM   #209
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Default Re: Blown 45 build

This build is the kinda stuff i dig about this forum... and dig about Sweden; lots of crazy ass builds there!
(shhh, don't tell my wife i said anything positive about Sweden; she's a Finn)
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Old 10-16-2013, 07:09 PM   #210
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Default Re: Blown 45 build

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This build is the kinda stuff i dig about this forum... and dig about Sweden; lots of crazy ass builds there!
(shhh, don't tell my wife i said anything positive about Sweden; she's a Finn)

So amazing, its like everyone from PDX is part-Finn. And everyone from Minnesota is part Swede. So cool, cant wait to go back to Portland....havent been since 2006. What a blast of a city!

I also feel an appropriate name for this bike would be "Junk Shredder".....best watch yourself on all those chains and whatnots
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Old 10-16-2013, 07:51 PM   #211
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Default Re: Blown 45 build

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Originally Posted by lilbill View Post
those splitters have diodes in them. the voltage at the secondary side of the coil reverses polarity every other rotation. the diodes separate the spark so that on one pulse it is directed to one plug and on the next it is directed to the other plug. you only need two of those splitters if you're running dual plugs in one head. otherwise you use one splitter on one tower for both plugs and ground out the other unused tower. got it ?
Yup. Right.

My setup is going to be a bit different. Simpler.
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Old 10-16-2013, 08:53 PM   #212
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Default Re: Blown 45 build

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Yup. Right.

My setup is going to be a bit different. Simpler.
i tried making some once but couldn't source the diode. it has to switch thousands of volts. the closest thing i found was in a microwave oven.
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Old 10-16-2013, 09:30 PM   #213
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Default Re: Blown 45 build

Mine wont function the same either. Basically I want four plug wires from two sockets....

I could do dual coils........but I want what I want.

Just need to see if my idea on "sealing" the spark in the cable at the joint works..

Back to this here bike.
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Old 10-16-2013, 09:45 PM   #214
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Default Re: Blown 45 build

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So amazing, its like everyone from PDX is part-Finn. And everyone from Minnesota is part Swede. So cool, cant wait to go back to Portland....havent been since 2006. What a blast of a city!

I also feel an appropriate name for this bike would be "Junk Shredder".....best watch yourself on all those chains and whatnots
my wife is all Finn, born & raised in Helsinki. i'm just part Finn.

+1 on "Junk Shredder"...
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Old 10-17-2013, 08:02 AM   #215
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Default Re: Blown 45 build

Quote:
those splitters have diodes in them. the voltage at the secondary side of the coil reverses polarity every other rotation. the diodes separate the spark so that on one pulse it is directed to one plug and on the next it is directed to the other plug.
I can hardly trust diodes on 12 volts DC circuits... And you tell us these will withstand 40,000 vdc on reverse polarity?????

Wonder why guys go for others more expensive ways to get twin plugs if it's as easy as that...

Patrick
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Old 10-17-2013, 02:11 PM   #216
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Default Re: Blown 45 build

Quote:
Originally Posted by dhallilama View Post
This build is the kinda stuff i dig about this forum... and dig about Sweden; lots of crazy ass builds there!
(shhh, don't tell my wife i said anything positive about Sweden; she's a Finn)
Tell her i think she's hammered out on koskenkorva and knife fighting in a sauna.

But she probably an beautyful blonde that thinks im gay since im a swede.
Quote:
Originally Posted by Kaaos82 View Post
So amazing, its like everyone from PDX is part-Finn. And everyone from Minnesota is part Swede. So cool, cant wait to go back to Portland....havent been since 2006. What a blast of a city!

I also feel an appropriate name for this bike would be "Junk Shredder".....best watch yourself on all those chains and whatnots


Quote:
Originally Posted by lilbill View Post
i tried making some once but couldn't source the diode. it has to switch thousands of volts. the closest thing i found was in a microwave oven.
Well there's a task and a half to blend in your microwave into the build so it doesn't and up in the ugly/ funny thread.....


Quote:
Originally Posted by thefrenchowl View Post
I can hardly trust diodes on 12 volts DC circuits... And you tell us these will withstand 40,000 vdc on reverse polarity?????

Wonder why guys go for others more expensive ways to get twin plugs if it's as easy as that...

Patrick
I was hoping that you would join in on this thread since you seem to traveled down this path before a could guide me away from down falls and dead ends.

Sadly we seem to have pissed you off.

Since i already bought the morris single fire cables i will try them out before i go for an more complicated set up.
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Old 10-17-2013, 03:26 PM   #217
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Default Re: Blown 45 build

I don't think we pissed him off.

We know there is a "better" way of doing the ignition and expensive. On my personal experiment I want to see if I can get all 4 to fire at the same time using one coil..

I want to see how much the 4 diminish the spark in kv on each lead. Compared to one for each or the wire setup you have. Or even better, dual ignitions. Two mags or two dizzys.

I have in mind running dual point plates in my nose cone. One for the OEM plugs and the other for the add ins. So I can play with the second spark timing. I don't want to get into it right now.

More later.

Back to your bike sir. Hopefully thefrenchowl will forgive us and come back to advise.
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Old 10-17-2013, 04:10 PM   #218
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Default Re: Blown 45 build

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Originally Posted by JAWS View Post
I am going to try and make a spitter setup.....I'll let you know how it goes.


I'll try it out and send you the details.
A splitter to run dual fire as single? This has been covered in other magneto threads.

...and I see others made that point. Disregard.
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Old 10-17-2013, 04:12 PM   #219
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A splitter to run dual fire as single? This has been covered in other magneto threads.
I know....I don't want to cover it here. We were just kicking it around again.
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Old 10-17-2013, 04:18 PM   #220
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Default Re: Blown 45 build

I see the MSF units as a "If it ain't broke..." I use two of them on my Shovel, as I run a single mag and dual plug heads. I tucked the hunks between the tanks and ran them tidy. They've been pretty easy going for about a year and a half now.

Prior to these units, Morris made a box that converted the signal of a mag into an external coil to run dual plugs. Talk about cumbersome. That's just more shit than a regular EI and you really don't get the simplicity or reliability of a mag...you gotta start somewhere though.

There is one of those units on eBay right now (not mine, this is for reference only).

http://www.ebay.com/itm/MORRIS-MAGNE...#ht_428wt_1161
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