64 Lark Commander Challenger PROJECT

THE place to document, in chronological order, ON-GOING progress/milestones of ANY high performance Studebaker project. Projects include any major/lengthy - repair/modification/resto/total rebuild OR an extensive build/development/modification of a high performance Studebaker part/system. Including as much info/many photos about/of your project is greatly appreciated! ON-GOING PROJECTS ONLY PLEASE.
Post Reply
shifter44
Over 400 Posts!
Posts: 493
Joined: 11 Jun 2005, 13:22
Location: Florida

Re: 64 Lark Commander Challenger PROJECT

Post by shifter44 » 20 Mar 2019, 08:10

I'm sure glad to see you out there running. Thanks for keeping us informed .

Those seats are good lookers .
If you can't get there in a STUDEBAKER,
it ain't worth goin' .

Bill H .

User avatar
63larkr1
Studebaker Racing Team Member
Posts: 773
Joined: 17 Dec 2003, 16:49
Location: Nashville, In

Re: 64 Lark Commander Challenger PROJECT

Post by 63larkr1 » 20 Mar 2019, 09:41

Nice seats. Stock iron intakes work really well, better than people think.
Richard
Studebaker Drag Racing You can't beat it.
The 11th annual all Studebaker Nationals Drag Race is Saturday May 25th, 2018 at 9:00 am at Brown County Dragway in Bean Blossom, Indiana. For more information contact Richard Poe

User avatar
TedHarbit
Studebaker Racing Team Member
Posts: 440
Joined: 09 Dec 2003, 23:18

Re: 64 Lark Commander Challenger PROJECT

Post by TedHarbit » 20 Mar 2019, 20:35

63larkr1 wrote:
19 Mar 2019, 10:32
I wonder if you have a lower tire pressure after the car sat for the winter and that could be related to the squirrely launch? This was your best 60' ever with this car in any case maybe the tire pressure helped? Any time you can lower your et by several tenths that's a big deal, as a racer I'm really impressed. As we talked about on the phone, I had a several tenths improvement after going to a lighter front tire so maybe your new tires helped some too. I thought on this Studebaker Racing site you would get more response.
Thanks for sharing,
Richard
You're right Richard. I hadn't responded due to being in a daze at the awesome stats. Sixty foot times in the 1.6's, in the 11's, etc. Unbelievable!

User avatar
R5 Lark
Studebaker Racing Team Member
Posts: 2097
Joined: 24 Jan 2006, 10:27

Re: 64 Lark Commander Challenger PROJECT

Post by R5 Lark » 30 Mar 2019, 10:58

Installed the new carb yesterday. Ran supper rich out of the box but finally got the A/F up to 13.4 at idle by adjusting the 4 corners down slowly. Local cruise holds a steady 12.4 but haven't stepped into the carb yet. Seems ok so far. Hoping it will be much more richer on fuel delivery under WOT from the 1/8 on verses the removed Holley 4010.
You do not have the required permissions to view the files attached to this post.

User avatar
63larkr1
Studebaker Racing Team Member
Posts: 773
Joined: 17 Dec 2003, 16:49
Location: Nashville, In

Re: 64 Lark Commander Challenger PROJECT

Post by 63larkr1 » 30 Mar 2019, 17:58

That's a good looking carb.
Richard
Studebaker Drag Racing You can't beat it.
The 11th annual all Studebaker Nationals Drag Race is Saturday May 25th, 2018 at 9:00 am at Brown County Dragway in Bean Blossom, Indiana. For more information contact Richard Poe

User avatar
R5 Lark
Studebaker Racing Team Member
Posts: 2097
Joined: 24 Jan 2006, 10:27

Re: 64 Lark Commander Challenger PROJECT

Post by R5 Lark » 26 May 2019, 22:53

Working on a backup engine using some left over parts for a CASO rebuild. Bearings were bad so using the best of some standard bearings in storage. New rings and rear oil seal though. Oil pump had a scored and gouged bushing in the pump housing so took some spare oil pumps and put together one better spec pump. Heads need some work though. Hoping to get good oil pressure and compression, stay under $150 and have 300 hp in the end. Wish me luck. Should know by August.

Ever wonder what it takes to run 10 sec flat. It takes a Hemi!
You do not have the required permissions to view the files attached to this post.

User avatar
R5 Lark
Studebaker Racing Team Member
Posts: 2097
Joined: 24 Jan 2006, 10:27

Re: 64 Lark Commander Challenger PROJECT

Post by R5 Lark » 28 May 2019, 22:19

The aluminum style timing gear arrived today. Looks in good condition. You can tell the originals by the number and the large spring C clip. Got all the pistons installed after a deglazing hone. New orginal rings installed nicely. Checked the deck clearance on the pistons and Dc came in at -.023 so selected the thin head gasket for a nice tight quench zone. White painting the freeze and drain plugs aids in viewing those areas when everything is installed for any leak issues. I use hex plugs on the drains which makes removal far easier for future block draining.
You do not have the required permissions to view the files attached to this post.

User avatar
R5 Lark
Studebaker Racing Team Member
Posts: 2097
Joined: 24 Jan 2006, 10:27

Re: 64 Lark Commander Challenger PROJECT

Post by R5 Lark » 29 May 2019, 20:10

Correction on the above piston to deck clearance. Value is -.032".

User avatar
R5 Lark
Studebaker Racing Team Member
Posts: 2097
Joined: 24 Jan 2006, 10:27

Re: 64 Lark Commander Challenger PROJECT

Post by R5 Lark » 01 Jun 2019, 10:14

Made the cam install yesterday.
You do not have the required permissions to view the files attached to this post.

User avatar
R5 Lark
Studebaker Racing Team Member
Posts: 2097
Joined: 24 Jan 2006, 10:27

Re: 64 Lark Commander Challenger PROJECT

Post by R5 Lark » 28 Jun 2019, 10:27

Performance test on the above 289 CASO engine. 12.52 @ 104.87

https://www.youtube.com/watch?v=WZftt2o ... e=youtu.be

User avatar
R5 Lark
Studebaker Racing Team Member
Posts: 2097
Joined: 24 Jan 2006, 10:27

Re: 64 Lark Commander Challenger PROJECT

Post by R5 Lark » 06 Jul 2019, 09:37

Raced yesterday evening in the heat wave. Added a homemade fan shroud and engine temps are staying in the mid range. Best solo run was a 12.34 @ 106.3. Second best was a 12.42 @ 105.4 CASO engine is performing well so far. Oil pressure still good and not smoking or leaking. :D
You do not have the required permissions to view the files attached to this post.

User avatar
63larkr1
Studebaker Racing Team Member
Posts: 773
Joined: 17 Dec 2003, 16:49
Location: Nashville, In

Re: 64 Lark Commander Challenger PROJECT

Post by 63larkr1 » 09 Jul 2019, 06:42

Tom,
You're making great passes with an engine that is built mostly from parts you had around the shop! The ETs just keep getting better, and the MPH indicates HP improvements. All this with the Studebaker intake manifold! How can this be?
Thanks for posting,
Richard
Studebaker Drag Racing You can't beat it.
The 11th annual all Studebaker Nationals Drag Race is Saturday May 25th, 2018 at 9:00 am at Brown County Dragway in Bean Blossom, Indiana. For more information contact Richard Poe

User avatar
R5 Lark
Studebaker Racing Team Member
Posts: 2097
Joined: 24 Jan 2006, 10:27

Re: 64 Lark Commander Challenger PROJECT

Post by R5 Lark » 13 Jul 2019, 16:13

Made some test runs yesterday evening the 12th. Heat was just to much at times. 98 if you could find shade and 110 heat index. Slight head wind so I parked the car in the wind flow on cool down. But the engine heat soaking pushed out some overflow on a 13 lb cap so had to up it to a spare 16 lb cap. Had made a front spoiler dam below the bumper but did not see any significant mph changes in the 8th or quarter. During the week I installed a new O2 sensor and on the runs I am seeing 10.9 numbers. So I made a primary jet down change but A/F didn't change any. Engine heat was just to much for me to fiddle with the secondaries.

Best run was a 12.34 @ 105.8, then several at 12.45 @ 105.6 / 12.55@ 105.1 / 12.49 @ 105.0 / 12.44 @ 105.5
Best eighth : 7.806 @ 88.44,then several more 7.8's and 7.9's. in the 87.8 range.

Hot Rod Week is scheduled for this track in September so start tuning your Studebakers. This coming week I plan to pull the iron intake and install the new aluminum intake.

User avatar
R5 Lark
Studebaker Racing Team Member
Posts: 2097
Joined: 24 Jan 2006, 10:27

Re: 64 Lark Commander Challenger PROJECT

Post by R5 Lark » 02 Aug 2019, 11:30

Installed the Al2 intake a few days back for street cruising. Did fine but had to renotch the hood for clearance. Had to change the bonnet connection because of the added height. It is a full 1.500" taller over the iron manifold. Used the thick gaskets for best sealing. It's about 10 lbs lighter.

Went to the track yesterday evening for comparison. Made 5 runs.
You do not have the required permissions to view the files attached to this post.

shifter44
Over 400 Posts!
Posts: 493
Joined: 11 Jun 2005, 13:22
Location: Florida

Re: 64 Lark Commander Challenger PROJECT

Post by shifter44 » 02 Aug 2019, 15:34

Hey Tom , 2 questions....what were your results yesterday , and also , which manifold is
this one ?? thanks .
If you can't get there in a STUDEBAKER,
it ain't worth goin' .

Bill H .

Post Reply