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  #501  
Old 07-19-2019, 09:11 PM
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69427 69427 is offline
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Default BBC w/p pulley weight?

I've got the stock three groove water pump pulley (2.6#) on my engine. The front groove was used for the original A.I.R. pump, which seized up on me about a month after I bought the car. I'm presently using the front groove to run the small alternator that I moved over to the right side. I'm just pondering moving the alternator rearward two grooves distance, and using a hopefully lighter two groove pulley. Anyone have a two groove BBC w/p pulley that they could give me a reasonably accurate weight on?

Thanks for any help.
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  #502  
Old 07-20-2019, 01:34 AM
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69427 69427 is offline
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Default First test drive of 2019.

Took the car out for a half hour drive around town to see how everything is performing. Ambient Temperature was mid nineties. The "new" used/lighter aluminum ps pump seems to work well, and the smaller/lighter radiator seemed to be up to the job. I've got a 195* thermostat in the engine, and the coolant temps were the same 200* that the engine usually runs at. Very relieved about that, as I hate to do a modification, and then immediately remove it if it didn't work. I did one minor additional change with this radiator swap. For the past several years I have had all three front grills closed off to reduce airflow going into the engine compartment and ending up under the car. I removed the center grill and blocking plate over the winter so that I had an access hole to reach in and install the ps cooler. I thought I'd play it safe with this first drive with the smaller radiator, and allow a bit more air to flow through the system, so I just installed the center grill again, but without the blocking plate. Once I get some track time I'll see if I can block off some of the center grill again.

I took a chance with this radiator, and it appears I got lucky.
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  #503  
Old 07-20-2019, 01:55 AM
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vette427sbc vette427sbc is offline
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Quote:
Originally Posted by 69427 View Post
Was looking at a steering column I got from Gene a few years back. It's the standard column, which is lighter than my t&t column. While figuring out what small parts I need to procure sometime, I took a magnet to the column to see what was steel and what was aluminum. The top/visible stuff is aluminum, and the shafts and tubing/mounts are steel. It looks like it would be pretty straightforward to replace the tubing/mount section in aluminum, and take perhaps five pounds off this column (plus the weight of the t&t mechanism).

Anyone here a quasi expert on steering columns? I need to scrounge up some odds and ends parts for this project, particularly the key switch and the wheel/horn mounting hardware. With the bolt-on steering wheel (versus the press-on type, I'm curious if these parts are hard to come upon.

Thanks for any help.
My stock column with steering wheel and stainless steel u joint on the end is 21 lbs... I suspect you are right in that replacing the tubing with aluminum would work well, but being that’s your key is in the column, I think the dense potmetal/aluminum “bell” (end that tapers up to the wheel hub) might be difficult to replace with something a little more empty inside. I’ll report back when my ProLite column comes in... they are claiming 6lbs (no wheel or ujoint though)
If you need any parts or dimensions from my stock one, let me know...
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  #504  
Old 07-20-2019, 02:06 AM
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69427 69427 is offline
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Quote:
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Quote:
Originally Posted by 69427 View Post
Was looking at a steering column I got from Gene a few years back. It's the standard column, which is lighter than my t&t column. While figuring out what small parts I need to procure sometime, I took a magnet to the column to see what was steel and what was aluminum. The top/visible stuff is aluminum, and the shafts and tubing/mounts are steel. It looks like it would be pretty straightforward to replace the tubing/mount section in aluminum, and take perhaps five pounds off this column (plus the weight of the t&t mechanism).

Anyone here a quasi expert on steering columns? I need to scrounge up some odds and ends parts for this project, particularly the key switch and the wheel/horn mounting hardware. With the bolt-on steering wheel (versus the press-on type, I'm curious if these parts are hard to come upon.

Thanks for any help.
My stock column with steering wheel and stainless steel u joint on the end is 21 lbs... I suspect you are right in that replacing the tubing with aluminum would work well, but being that’s your key is in the column, I think the dense potmetal/aluminum “bell” (end that tapers up to the wheel hub) might be difficult to replace with something a little more empty inside. I’ll report back when my ProLite column comes in... they are claiming 6lbs (no wheel or ujoint though)
If you need any parts or dimensions from my stock one, let me know...
I appreciate any future help.

My plan is to just replace the tubing parts that are not visible when the column is bolted up. If this project is workable, I would retain the actual steering shaft, and all the aluminum/potmetal stuff that is present between the steering wheel and the dash/instrument pad.
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  #505  
Old 07-20-2019, 05:44 PM
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mfain mfain is offline
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FWIW, this is the direction I went. On my C-1, I started with a standard C-3 column. The lightest column I could find was from Woodward, so I replaced the main body and shaft, but I kept the C-3 ignition, turn signals, etc. I built aluminum brackets to hold the ignition switch to the column (see photos). Then, as the car evolved from dual-use to track only, I remove the ignition switch assembly entirely. The heaviest parts are the switch housing and the pot metal piece that the steering wheel bolts to. I did make a fiberglass replacement for the pot metal piece when I no longer needed it to secure the wheel. What I ended up with is a light-weight Woodward column (with a splined, collapsible shaft, Woodward's light weight firewall bearing, and a light weight LaCarra steering wheel adapted to a Woodward quick release with an adapter from Joe's racing products.

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