C crank T block progress!

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Les Schubert
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C crank T block progress!

Post by Les Schubert » Mon Jan 25, 2021 4:56 pm

C crank and flathead V8 oil pump
C crank and flathead V8 oil pump
Race grind A cam modified to fit T block
Race grind A cam modified to fit T block
Gear added for the V8 oil pump
Stretched pan (shortened nose). Sump mod
Stretched pan (shortened nose). Sump mod


Weldemup57
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Re: C crank T block progress!

Post by Weldemup57 » Tue Jan 26, 2021 7:55 pm

Les,
That engine looks great!
What kind of port work have you done to it?
Are there any galling problems running an A cam journal against the T block?
Any idea how much power you'll make?

Thanks,
Rich


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Les Schubert
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Re: C crank T block progress!

Post by Les Schubert » Tue Jan 26, 2021 10:14 pm

I’ll post a picture of the intake manifold tomorrow.
No problems running the A cam against the block.
The identical engine is capable of pushing a speedster at 100 mph


pete eastwood
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Re: C crank T block progress!

Post by pete eastwood » Wed Jan 27, 2021 12:31 am

On my " C" crank in a " T " block seems like I remember we had to turn down the OD of the counter weights to clear the cam .


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Les Schubert
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Re: C crank T block progress!

Post by Les Schubert » Wed Jan 27, 2021 11:56 am

Pete
The counterweights are OK but I had to trim beside the throws for clearance to the camshaft. Now the A camshaft is bigger than a T camshaft and I have filed notches in the camshaft bearing bores


Topic author
Les Schubert
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Re: C crank T block progress!

Post by Les Schubert » Wed Jan 27, 2021 1:09 pm

C9E79E92-E90F-4DE7-A355-5F85DE4D4761.jpeg
This manifold can be mounted either way up to accommodate either a updraft or downdraft
97311B05-F7D0-45C3-BA9C-8FB6F7EDA33F.jpeg
Effectively a 4 intake port manifold. Without the divider the bottom end torque is poor.

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John Warren
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Re: C crank T block progress!

Post by John Warren » Wed Jan 27, 2021 2:10 pm

Looking Good Les!
Question about the porting, Can you do that without any welding or epoxying , my concern is water the jacket? I know that some epoxy filling can help flow in the intake ports. Thanks for sharing a wild project!!
24-28 TA race car, 26 Canadian touring, 25 Roadster pickup, 14 Roadster, and 11AB Maxwell runabout
Keep it simple and keep a good junk pile if you want to invent something :P


Topic author
Les Schubert
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Re: C crank T block progress!

Post by Les Schubert » Wed Jan 27, 2021 3:00 pm

No welding or epoxy!!


Kevin Pharis
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Re: C crank T block progress!

Post by Kevin Pharis » Wed Jan 27, 2021 3:35 pm

Nice work Les, how much of the manifold is plenum...? And how much is runner...?


Bud Delong
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Re: C crank T block progress!

Post by Bud Delong » Wed Jan 27, 2021 3:48 pm

Wow!! Will the exhaust ports be enlarged?? Bud.
:D


Dan McEachern
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Re: C crank T block progress!

Post by Dan McEachern » Wed Jan 27, 2021 4:37 pm

While there is no water around the intake port area, that is not the case with the exhaust ports. The can be opened up slightly but the port walls are not thick enough to open them up significantly.


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Les Schubert
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Re: C crank T block progress!

Post by Les Schubert » Wed Jan 27, 2021 4:49 pm

The majority of the intake is runner. Just plenum under the carb.
I have never opened up the exhaust ports.

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John Warren
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Re: C crank T block progress!

Post by John Warren » Thu Jan 28, 2021 12:22 pm

This Model T kicked my butt in Lincoln Nebraska 2017. I believe that this is his dyno sheet, WOW. It has simmilar porting.
fast t.JPG
Mike Edwards Dyno Sheet 6-24-17.jpg
[/size]
24-28 TA race car, 26 Canadian touring, 25 Roadster pickup, 14 Roadster, and 11AB Maxwell runabout
Keep it simple and keep a good junk pile if you want to invent something :P


Weldemup57
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Re: C crank T block progress!

Post by Weldemup57 » Mon Feb 01, 2021 11:53 am

Hey Les,

Is that a pre-26 block?
Do you have a preference for certain year blocks when you modify them?

Thanks,
Rich


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Les Schubert
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Re: C crank T block progress!

Post by Les Schubert » Mon Feb 01, 2021 3:20 pm

It’s a late style block. I generally prefer for the upper 2 transmission attachment bolts


Dave Sullivan
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Re: C crank T block progress!

Post by Dave Sullivan » Mon Feb 01, 2021 4:14 pm

Les, did you ever do any research into wet V dry flywheel housing? Seems like a lot of drag to me, but I've never noticed anybody addressing this question. Thank you, Dave in Bellingham


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Les Schubert
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Re: C crank T block progress!

Post by Les Schubert » Mon Feb 01, 2021 8:16 pm

I run what I call a “semi dry” flywheel!! There is a dam that keeps the oil away from the flywheel. The transmission shaft is drilled and fed from the rear main bearing. Some oil is sprayed onto the bands.


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Re: C crank T block progress!

Post by Dave Sullivan » Tue Feb 02, 2021 11:15 am

Thank you, sir, I've been pondering this for some time, thinking of using a dry clutch. Dave in Bellingham


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Les Schubert
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Re: C crank T block progress!

Post by Les Schubert » Tue Feb 02, 2021 5:53 pm

Dave
Well if you are planning to use a truly DRY clutch, that is a completely different thing. Assuming that you are not using the T transmission!!


Weldemup57
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Re: C crank T block progress!

Post by Weldemup57 » Thu Feb 04, 2021 8:49 pm

Les,

Very interested in how you set-up your semi-dry flywheel .

Any pictures or drawings?

Thanks for your time.
Rich


Topic author
Les Schubert
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Re: C crank T block progress!

Post by Les Schubert » Thu Feb 04, 2021 9:41 pm

0FED67B9-A1CA-47E2-BA32-7FADF61CCF87.jpeg
I hope this helps


Weldemup57
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Re: C crank T block progress!

Post by Weldemup57 » Sat Feb 06, 2021 11:11 am

Les,
I can see how keeping the "T" flywheel from sloshing through too much oil can be a benefit in a race or speedster engine.
I was wondering if you have ever experimented in lightened flywheels for a race/speedster application.
Also would like your opinion on using a "EE" late non-counterweight crank and splash oiling in a modified "T" engine-Will it hold up?
Thanks,
Rich


Topic author
Les Schubert
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Re: C crank T block progress!

Post by Les Schubert » Sat Feb 06, 2021 2:30 pm

Rich
As you increase HP you increase bearing load!
Adjusting T bearings is a fact of life with a splash engine. Lack of full flow filtration contributes. Consider that in the ‘30’s the V8 didn’t have shims. Eventually oil filters were added.
So much more HP from a stock oiled T I would expect to do more bottom end “maintenance”!

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