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 Post subject: Re: My 68 Barracuda
PostPosted: Sat Jun 11, 2022 8:21 pm 
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Supercharged

Joined: Wed Sep 17, 2008 6:48 pm
Posts: 3592
Location: Indianapolis
Car Model:
On the Road Again

https://www.youtube.com/watch?v=rCd6wyGMmbU

a list of the bigger projects completed on the 68 B over the Winter 2021 and Spring 2022 months

* Installed Roller Rockers, B3 valve train optimization shims, new pushrods, installed
valve spring retainer bushings, modified the valve cover to accept the higher positioned valve train
* Installed Tuff Wheel and adapter
* Re built 8.75 differential with new 3:55 ring and pinion
* Installled a Wagner adjustable PCV and Moroso vapor catch can
* Built brackets and trim necessary to mount quad headlights and custom grill work.

I am quickly running out of reasons to not drive this car.
I had rolled the odometer back to zero, when I started this project. The odometer is currently setting on 260 miles.
It is a 'Go' from there.

I will post a few more photos of the projects listed.

_________________
Doo Ron Ron and the Duke of Earl are friends of mine.....
https://www.youtube.com/watch?v=uX8Nj8ABEI8


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 Post subject: Re: My 68 Barracuda
PostPosted: Sat Jun 11, 2022 8:45 pm 
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Supercharged

Joined: Wed Sep 17, 2008 6:48 pm
Posts: 3592
Location: Indianapolis
Car Model:
The B3 rocker shaft shims significantly reduced the travel of the rocker rollers across the valve stem tip.
But they also moved the rocker shaft up over .200 and to make that work I needed new pushrods and a modified valve cover.
I added up lifts on the ends of the valve cover for clearance and moved the vapor containing baffles to the outside of the valve cover. To make a nicer flow of the PCV piping I swapped
PCV and air intake positions.


Attachments:
061022 68B Valve Cover.jpg
061022 68B Valve Cover.jpg [ 114.4 KiB | Viewed 341 times ]

_________________
Doo Ron Ron and the Duke of Earl are friends of mine.....
https://www.youtube.com/watch?v=uX8Nj8ABEI8
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 Post subject: Re: My 68 Barracuda
PostPosted: Sat Jun 11, 2022 8:49 pm 
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Supercharged

Joined: Wed Sep 17, 2008 6:48 pm
Posts: 3592
Location: Indianapolis
Car Model:
The goal of the new grill was to add an engine air intake, reminiscent of what was hot Rod stuff in the 60's and at the same time make it look like something Mopar could have done in 1968 and at the same time not do any changes that would impact re installing the original OE head lights and bezels.
This was an interesting project, and its done.


Attachments:
061022 68B new grill.jpg
061022 68B new grill.jpg [ 138.73 KiB | Viewed 340 times ]

_________________
Doo Ron Ron and the Duke of Earl are friends of mine.....
https://www.youtube.com/watch?v=uX8Nj8ABEI8
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 Post subject: Re: My 68 Barracuda
PostPosted: Sat Jun 11, 2022 8:54 pm 
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Supercharged

Joined: Wed Sep 17, 2008 6:48 pm
Posts: 3592
Location: Indianapolis
Car Model:
The OE steering wheel on this 68 Barracuda is just absolutely perfect. Has a nice shine, no cracks.
I am wanting to drive the car aggressively and I felt that a thicker steering wheel rim would give better
turning grip and at the same time I would not be stressing the nice OE steering wheel. I like the way the Tuff Wheel
looks and feels.


Attachments:
061022 68B Tuff Wheel.jpg
061022 68B Tuff Wheel.jpg [ 87.17 KiB | Viewed 339 times ]

_________________
Doo Ron Ron and the Duke of Earl are friends of mine.....
https://www.youtube.com/watch?v=uX8Nj8ABEI8
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 Post subject: Re: My 68 Barracuda
PostPosted: Sun Jun 12, 2022 5:53 am 
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SL6 Racer & Moderator
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Joined: Wed Jan 29, 2003 4:42 am
Posts: 8488
Location: Fort Bragg, NC
Car Model: More cars than sense...
Coolness on all that!

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Drag Racing
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 Post subject: Re: My 68 Barracuda
PostPosted: Sun Jun 12, 2022 6:18 am 
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Board Sponsor & Moderator
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Joined: Thu Oct 17, 2002 7:27 pm
Posts: 13367
Location: Park Forest, Illinoisy
Car Model: 68 Valiant
Good job John!

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 Post subject: Re: My 68 Barracuda
PostPosted: Sat Jun 25, 2022 9:21 am 
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Supercharged

Joined: Wed Sep 17, 2008 6:48 pm
Posts: 3592
Location: Indianapolis
Car Model:
Been doing some local driving to run up a few break in miles and to establish the reliability of the car.
The photo below is of the car using it as a Grocery Getter. That day in the parking lot independently had two sets of folks approach me saying
"that car is just beautiful, what is it?"

I now have 330 miles on the car. The last trip was a 20 mile out and back, all highway. The fuel milage was 17.9 mpg on that stint.

Pulled the sparkplugs to do a compression test
the cranking pressure for 1 to 6 are
195, 190, 183, 190, 183, 185

I also adjusted the valves

I have the AF and VE tables adjusted good enough that the car starts and drives easily. No bogs or hesitations.
I think I can tune it a bit better for more performance and economy.


Attachments:
062422 68B at K.jpg
062422 68B at K.jpg [ 128.42 KiB | Viewed 284 times ]
062422 68B SP2 330 miles.jpg
062422 68B SP2 330 miles.jpg [ 86.77 KiB | Viewed 284 times ]
062422 68B SP2 330 miles.jpg
062422 68B SP2 330 miles.jpg [ 86.77 KiB | Viewed 284 times ]

_________________
Doo Ron Ron and the Duke of Earl are friends of mine.....
https://www.youtube.com/watch?v=uX8Nj8ABEI8
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 Post subject: Re: My 68 Barracuda
PostPosted: Sun Jun 26, 2022 10:24 am 
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Board Sponsor & Moderator
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Joined: Mon Oct 21, 2002 11:08 am
Posts: 15429
Location: Blacksburg, VA
Car Model:
Glad to hear you are driving the car around more. 18 MPG for 20 miles from a cold stop is very good, since it takes the car more than 10 min to warm up. I assume that is not all hwy miles too... I like those cranking compression numbers for pump premium too. Excellent work.

Lou

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 Post subject: Re: My 68 Barracuda
PostPosted: Mon Jun 27, 2022 3:44 pm 
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Supercharged

Joined: Wed Sep 17, 2008 6:48 pm
Posts: 3592
Location: Indianapolis
Car Model:
Quote:
cranking compression numbers


Lou, thanks,
the calculated Static compression ratio is 10.67 and the dynamic compression is 8.37

no signs of pinging yet, but I know the fuel is a tad on the rich side and the timing curve is very conservative.

I plan to get back into the AF and VE tables soon.

_________________
Doo Ron Ron and the Duke of Earl are friends of mine.....
https://www.youtube.com/watch?v=uX8Nj8ABEI8


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 Post subject: Re: My 68 Barracuda
PostPosted: Mon Jun 27, 2022 4:26 pm 
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Board Sponsor & SL6 Racer

Joined: Wed Oct 23, 2002 7:57 pm
Posts: 7455
Location: Waynesboro, Pa.
Car Model: 65 Valiant 2Dr Post
Quote:
cranking pressure for 1 to 6 are
195, 190, 183, 190, 183, 185


Those numbers are very close to my 11.5 to 1 race engine. Mine are about 187-190#. Your car should run very well!! :D :D Congrats!

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2 Mopars come with Spark plug tubes. One is a world class, racing machine. The other is a 426 CI. boat anchor!
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12.80 @ 102.88
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 Post subject: Re: My 68 Barracuda
PostPosted: Tue Jun 28, 2022 7:35 am 
Offline
Supercharged

Joined: Wed Sep 17, 2008 6:48 pm
Posts: 3592
Location: Indianapolis
Car Model:
Quote:
close to my 11.5 to 1 race engine


Thanks Rick,
you probably have a longer duration cam so it needs more static compression to overcome the bleed off ahead of IVC.
the cam I have in this motor is 254 @ .050

_________________
Doo Ron Ron and the Duke of Earl are friends of mine.....
https://www.youtube.com/watch?v=uX8Nj8ABEI8


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