Author Topic: Turbo boost retarded distributor-can anyone identify? (Read 7566 times)

cavebear · « **on:** June 23, 2012, 03:53:52 PM »

I have this boost activated retard distributor that will be adapted to an ARD magneto drive housing. There are no part numbers or manufacturer ID on it. Has anyone ever seen this? Oh, also it's NIB and 30 years old.

Greggo · « **Reply #1 on:** June 23, 2012, 04:39:23 PM »

Oooh, that is very trick.

Jim F · « **Reply #2 on:** June 23, 2012, 05:14:04 PM »

Kind of puts my MSD MC-4 system with my boost sensor to shame in its own little way
way cool though

BLUE71TURBO · « **Reply #3 on:** June 23, 2012, 05:18:15 PM »

Bear, That is an early Bill Hahn boost retard distributor. I had one on my 1978 kz1000 back in 1980. I bought it from a friend who had one on his turbo'ed 1980 kz1000 mkII .

cavebear · « **Reply #4 on:** June 23, 2012, 05:56:54 PM »

BlueTurbo,

Thanks for the info. I thought you or 754 would know what it was

Terry in Australia · « **Reply #5 on:** June 23, 2012, 06:17:04 PM »

Which way does the ditributor rotate?

cavebear · « **Reply #6 on:** June 23, 2012, 06:45:58 PM »

My guess is it doesn't matter. There's no centrifugal advance inside, just the rotor.

scottly · « **Reply #7 on:** June 23, 2012, 07:11:24 PM »

What about the boost retard? Will it end up being a boost advance?

cavebear · « **Reply #8 on:** June 23, 2012, 07:24:20 PM »

Yeah, I thought of that afterwards. Maybe Jon can tell us how it was originally driven, then we'll know. My brother was fabricating this for his turbo motor, so I don't think that got past him. Unfortunately he had a fatal
accident during the build period and there are a lot of things I'm looking at now and scratching my head over.
If anyone's wondering why I'm just working on this now, as happens so often, life got in the way. However, I never sold anything and actually picked up more performance parts over the years. Now that I'm retired, it's time to play.

scottly · « **Reply #9 on:** June 23, 2012, 07:35:09 PM »

Sorry to hear about your brother, but all the more reason to carry on with the project....
How about a pic of the bottom?

BLUE71TURBO · « **Reply #10 on:** June 23, 2012, 08:06:56 PM »

The Bill Hahn system was like the A.R.D. It was a belt driven setup. It had a cover that concealed the pulley's and the drive belt. I thought i had a picture of a setup on a bike. I'll have to look again. I had mine installed before i was going to turbo my first Kawi but someone offered me twice what i paid for it ,so i sold it.

Here is a picture of a similar setup. This is a later Bill Hahn magneto drive setup on a Suzuki gs1100. You can see the open bolt hole toward the rear of the round housing. That's so you can rotate the belt drive assembly forward as shown or rotate it rearward to have the distributor or mag behind the cylinder.

The earlier setp like Bears distributor had a way smaller belt drive wheel. The distributor or mag will drive counter clockwise.

BLUE71TURBO · « **Reply #11 on:** June 23, 2012, 08:34:09 PM »

Quote from: Terry in Australia on June 23, 2012, 06:17:04 PM

Which way does the ditributor rotate?

North to South !

754 · « **Reply #12 on:** June 23, 2012, 10:25:37 PM »

I saw ikt earl;ier and was not signed in.. The Bill Hahn name came to mind, but I was not sure what Company he was associated with..
They show up on bikes in early 80's HOT BIKE mags.. nice piece..

Terry in Australia · « **Reply #13 on:** June 24, 2012, 02:50:34 AM »

That's a nice looking setup, what's the advantage of running it at the front of the engine though?

Hey Jon, can I use my Bosch 009 distributor on something like that? Cheers, Terry.

cavebear · « **Reply #14 on:** June 24, 2012, 06:16:05 AM »

Boy, that's a heavy duty setup. It makes the ARD look like tissue paper in comparison. Bill Hahn Jr. has a website for performance cart parts. I'm going to send him an email and see if his dad can remember where
the distributor came from.

Jim F · « **Reply #15 on:** June 24, 2012, 06:29:19 AM »

I hope you take over where your brother left off and build a turbo
Jon and my self and a few others have turbo Cbs (Mine is still in the build process)
and would like to see another join the club
Jon had been a big help in mine
Sorry for your loss of your brother
keep the pictures coming

Jim

BLUE71TURBO · « **Reply #16 on:** June 24, 2012, 11:46:00 AM »

Quote from: cavebear on June 24, 2012, 06:16:05 AM

Boy, that's a heavy duty setup. It makes the ARD look like tissue paper in comparison. Bill Hahn Jr. has a website for performance cart parts. I'm going to send him an email and see if his dad can remember where
the distributor came from.

Cavebear, I remember something about the distributor being custom made and using some GM electronics inside. The setup used a GM " REMOTE " electronic coil. Back in the early to late 70's the Gm electronic 4 and 6 cylinder distributor shafts couldn't handle the weight of the heavy coils so they designed a remote electronic coil like this..........

So Cavebear, maybe you should look into a mid to late 70's GM " CHEVY " 4 cylinder distributor and see if it is close to what you have if you might ever need parts. The housing on yours looks like it's made out of " TEFLON " which is custom made with the slot for the retard setup.

BLUE71TURBO · « **Reply #17 on:** June 24, 2012, 11:52:50 AM »

Here's a Bill Hahn setup using a MALLORY Super Magneto........

cavebear · « **Reply #18 on:** June 24, 2012, 05:12:03 PM »

That's the coil boxed with this distributor. I'll sniff around for more info.
Jim F thanks for the encouragement. I never left the turbo ranks, just have been suspended. This has been posted elsewhere but here's me at Union Grove Wisconsin in 1980.

My brother in the background with his turbo 900. 10.90 sec at 143mph

This was a stock engine with the turbo. It ran 11.80 sec at 121 mph. I had built an 836 turbo motor in 1976 and took it touring to Canada .

This is what happens 2000 miles later if it.s not sorted.

Still own the bike

Old Scrambler · « **Reply #19 on:** June 24, 2012, 05:21:13 PM »

Nice frame kit

cavebear · « **Reply #20 on:** June 24, 2012, 07:12:26 PM »

There IS a frame kit. It had been removed before the photo. Take a close look at the tube ends. You can see the bolt holes. Still have it and the installation instructions. Sleeves were bolted over the tubes and flat plates bolted over the reinforcing bars.

BLUE71TURBO · « **Reply #21 on:** June 24, 2012, 07:15:59 PM »

Quote from: Terry in Australia on June 24, 2012, 02:50:34 AM

That's a nice looking setup, what's the advantage of running it at the front of the engine though?

Hey Jon, can I use my Bosch 009 distributor on something like that? Cheers, Terry.

Terry, the reason for the option to run it rearward or forward is for clearance for blower, turbo, or injection setups. As for your 009 dizzy, you would still have the problem with it not being setup for counter clockwise rotation.

Tell ya what Terry, I'm going to contact a guy that worked on Russ Jr's Mallory magneto for the Sorcerer. I have Mallory super magneto III and can't use it with the R.C. angle drive that i have. It's way too powerful and has too much torque for the drive gear and shaft. I'm gonna see if he'll trade for a less powerful Mallory mag and to set it up for reverse rotation.
If he'll do it you can have my R.C. Mallory duel point dizzy.

You just pay for the shipping..... OK ?

Here is a picture of the dizzy............

It's really clean inside also.

Oh, you can have the plug wires too.

BLUE71TURBO · « **Reply #22 on:** June 24, 2012, 07:22:55 PM »

Quote from: Old Scrambler on June 24, 2012, 05:21:13 PM

Nice frame kit

Hey, i have that same frame kit !

It's the invisible version. Pretty rare piece !

Terry in Australia · « **Reply #23 on:** June 24, 2012, 09:05:23 PM »

Quote from: BLUE71TURBO on June 24, 2012, 07:15:59 PM

Quote from: Terry in Australia on June 24, 2012, 02:50:34 AM
That's a nice looking setup, what's the advantage of running it at the front of the engine though?

Hey Jon, can I use my Bosch 009 distributor on something like that? Cheers, Terry.

Terry, the reason for the option to run it rearward or forward is for clearance for blower, turbo, or injection setups. As for your 009 dizzy, you would still have the problem with it not being setup for counter clockwise rotation.

Tell ya what Terry, I'm going to contact a guy that worked on Russ Jr's Mallory magneto for the Sorcerer. I have Mallory super magneto III and can't use it with the R.C. angle drive that i have. It's way too powerful and has too much torque for the drive gear and shaft. I'm gonna see if he'll trade for a less powerful Mallory mag and to set it up for reverse rotation.
If he'll do it you can have my R.C. Mallory duel point dizzy. You just pay for the shipping..... OK ?

Here is a picture of the dizzy............

It's really clean inside also. Oh, you can have the plug wires too.

Hey thanks Jon, that'd be great mate, and sure, I'll be happy to pay for the shipping! Cheers, Terry.

754 · « **Reply #24 on:** June 24, 2012, 09:29:07 PM »

If you build a drive from motor to a gear, then a gear same size meshed with that connected to the dist... no more rotation problem.. Build a cover for the gears, use bearings and a bit of oil or grease.done...

Big Jay · « **Reply #25 on:** June 25, 2012, 08:54:32 PM »

Bill Hahn died a couple of years ago.

BLUE71TURBO · « **Reply #26 on:** June 26, 2012, 07:46:34 AM »

Quote from: Big Jay on June 25, 2012, 08:54:32 PM

Bill Hahn died a couple of years ago.

That sucks.

He'll definitly will be missed.

Time stands still for no one.

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Author Topic: Turbo boost retarded distributor-can anyone identify? (Read 7566 times)