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 Post subject: Re: My 68 Barracuda
PostPosted: Mon Apr 23, 2018 2:58 am 
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Joined: Mon Oct 21, 2002 11:08 am
Posts: 12671
Location: Blacksburg, VA
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Congrats on the axle. Are those GM metric calipers, or??

Lou

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"You mean you still have a Slant 6 in that thing?"


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 Post subject: Re: My 68 Barracuda
PostPosted: Mon Apr 23, 2018 9:48 am 
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Turbo EFI

Joined: Wed Sep 17, 2008 6:48 pm
Posts: 2401
Location: Indianapolis
Car Model*:
Quote:
GM metric calipers, or??


Dr Diff 8.75 disk kit
uses: Mustang calipers, Toyota Previa disks and
the Dr's unique caliper bracket.


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 Post subject: Re: My 68 Barracuda
PostPosted: Mon Apr 23, 2018 1:47 pm 
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Cool. He makes nice stuff. I have his Cobra Mustang rear setup on my 68.

Lou

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"You mean you still have a Slant 6 in that thing?"


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 Post subject: Re: My 68 Barracuda
PostPosted: Mon Apr 23, 2018 6:04 pm 
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Turbo EFI

Joined: Wed Sep 17, 2008 6:48 pm
Posts: 2401
Location: Indianapolis
Car Model*:
the plan for the next motor is for it to run on E85

the car has full return fuel line system with 3/8 stainless lines under the car. I have a couple of feet of flex lines at the tank and engine ends to make the connections easy and to control vibration to the hard lines.
So I am removing the existing rubber lined flex lines and swapping in PTFE lined flex lines.

The flex line material that is E85 approved with a PTFE inner liner takes a fitting with an internal ferrel.
it is still hand assembly, no special tools required. The PTFE hose is a slightly smaller outer diameter, because the PTFE inner liner is much thinner than the rubber liner in regular stainless wrapped flex hose.


Attachments:
File comment: fitting for PTFE hose
PTFE2.jpg
PTFE2.jpg [ 66.22 KiB | Viewed 750 times ]
File comment: top hose is the standard flex hose, bottom hose is the hose with the PTFE liner
PTFE1.jpg
PTFE1.jpg [ 53.32 KiB | Viewed 751 times ]
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 Post subject: Re: My 68 Barracuda
PostPosted: Fri Apr 27, 2018 7:34 pm 
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Turbo EFI

Joined: Wed Sep 17, 2008 6:48 pm
Posts: 2401
Location: Indianapolis
Car Model*:
progress on the motor block

inside: Gyptal 1201 Red Enamel
outside: IH Engine Red

concerning the casting defect shown in the second photo......
Chrysler had a grey iron foundry in Indy through the early 2000's.
Called the Tibbs Avenue Foundry, had previously been The American Foundry.
Its all gone now.....
They implemented a molding upgrade in the mid 80's called Impact Molding.
One disadvantage of Impact molding was it produced very hard molds. A hard mold will have
lamination that will break free and float when shocked by the hot metal inflow.

I believe the photo is a mold scab. If the mold scab had floated to a bearing bridge or head face area it would have scrapped this particular casting. As it is, it resides in a non critical stress area, does not leak,,,for me is an interesting curosity.


Attachments:
File comment: photo 3
photo b3.jpg
photo b3.jpg [ 64.85 KiB | Viewed 722 times ]
File comment: mold scab
photo b2.jpg
photo b2.jpg [ 49.62 KiB | Viewed 722 times ]
File comment: photo 1
photo b 1.jpg
photo b 1.jpg [ 53.84 KiB | Viewed 722 times ]
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 Post subject: Re: My 68 Barracuda
PostPosted: Sat Apr 28, 2018 3:35 am 
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Joined: Wed Oct 23, 2002 7:57 pm
Posts: 5515
Location: Waynesboro, Pa.
Car Model*: 65 Valiant 2Dr Post
Quote:
Gyptal 1201 Red Enamel


Is this just to help drain back? Help me remember. :D

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2 Mopars come with Spark plug tubes. One is a highly refined, record setting, world class, racing machine. The other is a 426 CI. boat anchor!
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 Post subject: Re: My 68 Barracuda
PostPosted: Sat Apr 28, 2018 6:42 am 
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Turbo EFI

Joined: Wed Sep 17, 2008 6:48 pm
Posts: 2401
Location: Indianapolis
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Quote:
Help me remember


well,,, I am more than a bit of a neat-nick and I like the way it looks.

Are there benefits beyond the aesthetic?
My thought process goes like this:

* Is there windage drag in the crankcase when the motor is at speed?
Yes. A Yes is good.

** Would smoothing the crankcase walls have the potential to reduce the effect of the windage drag at the crankcase walls?
Yes. A Yes is good.

*** Does the Red Gyplal paint smooth the interior crankcase walls?
Yes. A Yes is good.

**** Are there potential downsides to the Red Gyptal Paint?
Yes. A Yes is not good, additional detail needed.
I reviewed many internet discussion logs concerning Red Gyptal paint use inside of crankcase's.
There are users and non users of Red Gyptal paint in these discussions. Non users out number users by a wide margin
The down side mentioned most often is the possibility of the Red Gyptal paint breaking free and contaminating the oil, clogging the oil pick up.
That the Red Gyptal paint can break free is mentioned only by the non users. I have found no occurrence where an actual user of Red Gyptal paint reported that the coating caused any downside issues. All upside benefits mentioned by all the users are conjecture as I have done in the initial three bullet points.

and that is my story and I am sticking to it :roll:


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 Post subject: Re: My 68 Barracuda
PostPosted: Sun Apr 29, 2018 10:37 pm 
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Joined: Wed Nov 06, 2002 1:57 pm
Posts: 1849
Location: Everett, WA
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Years ago Hotrod magazine suggested Rustoleum white enamel. I tried, it worked, but I doubt if it made any difference.


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 Post subject: Re: My 68 Barracuda
PostPosted: Sun Apr 29, 2018 11:13 pm 
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Joined: Thu Oct 17, 2002 7:27 pm
Posts: 11626
Location: Park Forest, Illinoisy
Car Model*: 68 Valiant
My take? I seriously doubt glyptal will plug up the pickup. I would also bet the difference is too small to measure. What would intrigue me would be if it speeds oil drainback maybe you could reduce windage by running less oil in the pan without running it out.

Bottom line is if it makes you happy to do it, do it. :D

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 Post subject: Re: My 68 Barracuda
PostPosted: Fri May 04, 2018 1:38 pm 
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Joined: Mon Jan 12, 2015 5:55 am
Posts: 669
Location: Brightwood, VA
Car Model*: 1965 Plymouth Belvedere I
Who cares, it looks Purty.
-Matt

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http://www.MattmansMopars.com
Strive for Excellence, not Perfection.


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 Post subject: Re: My 68 Barracuda
PostPosted: Sat May 05, 2018 4:21 pm 
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EFI Slant 6
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Joined: Mon Aug 02, 2010 7:36 am
Posts: 486
Location: Rome, GA
Car Model*: 1963 Dart 270, 1980 D150
I've used Rust-Oleum rusty metal primer for this same purpose.

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 Post subject: Re: My 68 Barracuda
PostPosted: Tue Aug 07, 2018 12:51 pm 
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Turbo EFI

Joined: Wed Sep 17, 2008 6:48 pm
Posts: 2401
Location: Indianapolis
Car Model*:
The good weekend that I had a Wilksboro changed the short term plans that I had for the 68 Barracuda.
I thought that I would be dissatisfied with the performance of the car. And to correct that, finish assembly of the
new-improved slant motor, get it in the car an head to Knoxville as a test run ahead of Clay City.

A little success changed all of that, I am not changing anything on the car. Its going to Clay City, as it was at Wilksboro.

After Clay City, over the winter months I do plan to make some revisions to the car.
I always wanted the 68 Barracuda to be a street car. And I really like Lou's approach to drag racing. Drive the car there.
Driving the car would simplify the process of getting the 68 Barracuda to the strip, I am thinking that I would make more races.
The car has been to two Slant Six racing events.
Sept 2017 Clay City, six test runs and four races.
July 2018 Wilksboro, eight test runs and ten races.
I want to increase the number of times I get the car out, to 'play'.

The plans are:
Slant Six, will plan to use the new-improved motor that is in process of being built
Stay with the 904, to streamline the process, will be a a833 car eventually
Add AC, comfort for the highway trips
Mininal interior, no back seat
Add crash protection, roll bar, improved seats and seat belts
Leave the exterior paint, trim, glass as is
Renew and strengthen the under body

The goal for 2019 is to have the 68 Barracuda running as a street car that I can drive to a Drag Srip or Autocross event,
and have fun with :D on a frequent basis.


Attachments:
68B.jpg
68B.jpg [ 52.5 KiB | Viewed 385 times ]
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 Post subject: Re: My 68 Barracuda
PostPosted: Tue Aug 07, 2018 2:02 pm 
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Joined: Fri Nov 08, 2002 4:48 pm
Posts: 5889
Location: Burton BC canada
Car Model*:
Street It!

Im enjoying my DeSoto built for touring everyday.

My mud drag car was fun for 5 seconds 20 times a year......not so fun for the 80 hours per year of towing.

i think Seymour is the tour/race innovator...and Lou is the tour/race role model.

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Yeah....Im the one who destroyed this rare, vintage automobile.....

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