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  #1  
Old July 26th, 2020, 08:10
RCP Phx RCP Phx is offline
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Dr. Dirt is in surgery

From another thread, I am refurbishing this, again. I originally built this 40yrs ago for a friend and about 10yrs ago purchased it for my son. 6yrs ago I built a 1955cc stroker for it and installed a small 32/36 Weber progressive on it to limit the HP. Now it's getting a 48 IDF to fully maximize the HP. Besides a lot of custom fitting I also had a lot of modifying to do. This is only the beginning as there are a lot more plans for it. Got the intake system all painted and started the re-do.






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Old July 26th, 2020, 12:48
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Re: Dr. Dirt is in surgery

Very cool.

What year is that?

I see wide 5 wheels, but large tail lights.

It has been a number of decades, but Bugs are what I initially learned to wrench on. They always needed work. Always needed a valve adjustment, a brake adjustment and an oil change.
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Old July 26th, 2020, 14:39
RCP Phx RCP Phx is offline
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Re: Dr. Dirt is in surgery

It's a '68 body on a earlier pan with a '59 title(historic registration w/ no emisions). It's has 4 wheel racing disc brakes so no adjustment in 40 yrs! It has a half cage (welded in) and used to have a fuel cell inside. Like I said in my other post it was built as a pre-runner for the Mint 400 and other races, we used to race class 1 unlimited.
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Old July 28th, 2020, 18:49
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Re: Dr. Dirt is in surgery

Today I worked on a relocation bracket for the coil.

This was before....


And this is where it was, I'll install it tomorrow when the paint is dry.


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Old July 29th, 2020, 09:34
RCP Phx RCP Phx is offline
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Re: Dr. Dirt is in surgery

Got the coil mounted this morning. Now I'm waiting on the black braided hose and a #4AN to 10mm carb fitting (due today) so I can install the compact filter and get this engine running again and get on to the next project (transaxle gearing).


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Old July 30th, 2020, 02:37
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Re: Dr. Dirt is in surgery

I got it done and running, now I need to figure out how to get my wide-band sensor on it (temporary)to begin the tuning.
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Old August 2nd, 2020, 09:09
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Re: Dr. Dirt is in surgery

My O2 adapter isn't pretty but it gets the job done. I think there is a distributor problem so I'm looking in to that. The motor build only has about 1k miles on it and it has new big valve heads, a forged chromoly crankshaft, and chromoly H-beam rods.


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Old August 3rd, 2020, 09:45
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Re: Dr. Dirt is in surgery

Is this thing fuel injected, or does this O2 sensor somehow adjust fueling through carburetors? I'm a little unclear on exactly what such a simple engine needs that sensor for...
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  #9  
Old August 3rd, 2020, 10:23
RCP Phx RCP Phx is offline
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Re: Dr. Dirt is in surgery

No it's carbureted, the meter is a portable Air/Fuel meter so that I can tune the jetting. The distributor has a advance issue and so since I don't even know anybody with distributor machine I won't even attempt to work on it. I have ordered a up-grade, the old ignition module was a Compufire and a Bosch 009 with a Bosch blue coil which isn't made any longer. What I have ordered is Empi's new version of the 009 and a Pertronix Ignitor III ignition module along with a Flame-thrower coil. The ignition module contains a rev limiter, self tuning dwell and timing. The coil is rated at 45K volts.
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Old August 6th, 2020, 15:01
RCP Phx RCP Phx is offline
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Re: Dr. Dirt is in surgery

I just received my new collector, distributor, and ignition module( I receiver the coil yesterday). Now to get more done, probably send the collector out for re-chroming if I add a O2 bung. I am going to add a Supertrapp muffler to it.

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Old August 11th, 2020, 06:33
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Re: Dr. Dirt is in surgery

I tig welded the bung in Sunday and dropped the new collector off yesterday for re-chroming. The Supertrapp isn't due in for a couple weeks so I'm working on other issues in the mean time. Still having tuning issues so I've ordered a bunch of jets, emulsion tubes, and I'm trying to get a hold of some smaller venturis.
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Old August 13th, 2020, 09:33
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Re: Dr. Dirt is in surgery

I don't usually deal outside the states, but the venturis were only available from Prague,Czech !!! All I have to do now is wait for everything to get here.
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Old August 19th, 2020, 18:01
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Re: Dr. Dirt is in surgery

Parts are starting to arrive so I started with the new battery cables, I will have to finish them in the car. I'm using a hydraulic press so I know the connections are good along with sealing heat shrink.

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Old August 21st, 2020, 06:42
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Re: Dr. Dirt is in surgery

Yesterday I received the venturis and got all the jets, emulsion tubes changed out. The venturis looked great and I'm considering some 34's, but I won't know that until I can put my AFR meter on it. It's running a lot better but I'm still waiting on the collector from the chrome shop and the Supertrapp before I can get started on fine tuning. In the mean time I'll be working on all the new electrical wiring to replace the 60yr old factory stuff.

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Old August 27th, 2020, 11:35
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Re: Dr. Dirt is in surgery

Got my collector back from the chrome platers, it's done right this time! Super-trapp is due in any time and I'll polish it as needed.

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