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PostPosted: Sat May 12, 2018 9:16 pm 
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EFI Slant 6
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Joined: Thu Jan 13, 2005 1:01 pm
Posts: 376
Location: waynesboro PA
Car Model*: 72' Dart Swinger / 62' Valiant
So, After way way way too long. Seymour's Valiant is finally ready to race again. There were a few minor issues and an internal scraping sound that had me worried for a while but everything was identified and corrected and it seems to be ready to race. Dad helped me get everything finished up the last couple of weeks. We got the engine broke in properly changed and spent some time fixing leaks and little things and all that's left now is to send it down the track.

I took it for the inaugural run through Dads neighborhood just to make sure everything was ok. Made a couple of full throttle launches and ran it through the gears and everything seems good to go. If you have never launched a race car with a trans brake in your neighborhood I........well I guess I don't recommend it, but it was a lot of fun today. (maybe a bit on the scary side) We got a few pictures after I cleaned off the 3 years of dust.

So a quick update on the engine.
It is the same block, crank, camshaft, webers and general setup seymour had. We just rebuilt it using:
weisco/K1 pistons & Rods compression ratio of 13.8:1 up from 11:1
New cylinder head that (on the flow bench anyway) out flows the old head significantly.
Running a new multi layer steel head gasket that if it hold up we will try to make more/sell (they also fit the aluminum blocks)

Other than the slightly bigger bore, higher flowing head and extra compression, everything else is the same.

Looking forward to seeing everyone at mason dixon next week and if all goes well I'm hoping to start tuning and making this even faster.

Image

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Image

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Ryan Covalt
62 Plymouth Valiant Race Car 2170# 11.22 @ 115.86 MPH 1/4 Mile Best
72' Dart Swinger Street Car, 4 spd, 3330# 14.061 @96.58 1/4 mile Best


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PostPosted: Sat May 12, 2018 9:41 pm 
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Joined: Sun Nov 03, 2002 6:41 am
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This is great!

Mark


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PostPosted: Sun May 13, 2018 3:15 am 
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Joined: Sat Oct 19, 2002 12:06 pm
Posts: 7259
Location: Silver Springs, Fl.
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Kool Beans. Good luck at M/D. Wish I could be there.

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Charrlie_S
65 Valiant 100 2dr post 170 turbo
66 Valiant Signet 225 nitrous
64 Valiant Signet
64 Valiant 4dr 170


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PostPosted: Sun May 13, 2018 4:55 am 
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SL6 Racer & Moderator
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Joined: Wed Jan 29, 2003 4:42 am
Posts: 6713
Location: Vine Grove, KY
Car Model*: More than I should have...
Awesome!!

It’s gonna be a great year of Slant 6 drag racing! :D

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Rob

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PostPosted: Sun May 13, 2018 4:58 am 
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Supercharged
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Joined: Sat Nov 27, 2004 8:03 pm
Posts: 5126
Location: IRWIN PA
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Looking good!
Greg

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Greg Ondayko
69 Dart http://www.youtube.com/hyperpack
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PostPosted: Sun May 13, 2018 6:11 am 
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Turbo Slant 6
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Joined: Mon Jan 12, 2015 5:55 am
Posts: 852
Location: Brightwood, VA
Car Model*: 1965 Plymouth Belvedere I
That's fantastic!
Way ahead of me.
What sort of times was it laying down before the refresh?
I see some trick things there (no headlights).
More pics please.

-Matt

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


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PostPosted: Sun May 13, 2018 7:07 am 
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Joined: Wed Oct 23, 2002 7:57 pm
Posts: 6019
Location: Waynesboro, Pa.
Car Model*: 65 Valiant 2Dr Post
It was a record holder in A Gas for a long time at 11.487 was the best record.

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2 Mopars come with Spark plug tubes. One is a highly refined, world class, racing machine. The other is a 426 CI. boat anchor!
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PostPosted: Sun May 13, 2018 7:25 am 
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Joined: Wed Oct 23, 2002 7:57 pm
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Location: Waynesboro, Pa.
Car Model*: 65 Valiant 2Dr Post
Here is the central figure in making it go faster. New cylinder head. Has 7MM valves and flows really well. :D :D


Attachments:
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Race 2.jpg
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Race 3.jpg
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2 Mopars come with Spark plug tubes. One is a highly refined, world class, racing machine. The other is a 426 CI. boat anchor!
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PostPosted: Sun May 13, 2018 8:38 am 
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Location: Waynesboro, Pa.
Car Model*: 65 Valiant 2Dr Post
Webers don't hurt anything either! :D :D


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IMG_4751 - Copy.JPG [ 79.51 KiB | Viewed 3502 times ]
IMG_4747.JPG
IMG_4747.JPG [ 76.92 KiB | Viewed 3502 times ]

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2 Mopars come with Spark plug tubes. One is a highly refined, world class, racing machine. The other is a 426 CI. boat anchor!
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PostPosted: Sun May 13, 2018 1:26 pm 
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Joined: Mon Oct 21, 2002 11:08 am
Posts: 13450
Location: Blacksburg, VA
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FANtastic! Congrats to both Ryan and Rick. I am so excited to see this rocket on the track in 6 days!

Thanks for the rundown and for the hard work to make it all happen.

Lou

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PostPosted: Sun May 13, 2018 4:51 pm 
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EFI Slant 6
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Joined: Thu Jan 13, 2005 1:01 pm
Posts: 376
Location: waynesboro PA
Car Model*: 72' Dart Swinger / 62' Valiant
Thanks everyone,

I'm excited to get it down the track and i'm really looking forward to seeing everyone in a few days.

Matt, I will try to take some more pictures when i get a chance. Dad already posted some pictures of the engine but the other great part about this car is how much work seymour did to lighten the chassis. He really did an amazing job of getting weight off of this car and if it wasn't for that it probably wouldn't have set a record. I will try to take some pictures of the lightening work that was done when I get a chance.

Next project is to figure out why the car bounces so bad right off the starting line. I have some more reading to do on Cal-Tracs and shocks. Once this car makes a few passes and I make sure there are no major issues, the plan is to figure out the suspension. I'm assuming sitting for 3 years didn't miraculously fix the suspension issues from before.

_________________
Ryan Covalt
62 Plymouth Valiant Race Car 2170# 11.22 @ 115.86 MPH 1/4 Mile Best
72' Dart Swinger Street Car, 4 spd, 3330# 14.061 @96.58 1/4 mile Best


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PostPosted: Sun May 13, 2018 5:38 pm 
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SSRN National Champion
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Joined: Thu Jun 22, 2006 8:50 pm
Posts: 470
Location: Purlear, N.C.
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Great work Rick and Ryan. I cant wait to see how she runs. I'm sure going to miss being there. Please get some pics and vids of the race if possible. Good luck and great racing to everyone. I hope to join you guys at Motor Mile in June. :)

Ron

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62 Val, 66 Dart, 16 Ram 2500 Mega


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PostPosted: Sun May 13, 2018 5:50 pm 
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Turbo Slant 6
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Joined: Mon Aug 02, 2010 7:36 am
Posts: 807
Location: Rome, GA
Car Model*: 1963 Dart 270, 1980 D150
Wicked, cool cars!

Brad

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― Hunter S. Thompson


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PostPosted: Sun May 13, 2018 7:36 pm 
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Joined: Thu Oct 17, 2002 7:27 pm
Posts: 12171
Location: Park Forest, Illinoisy
Car Model*: 68 Valiant
Good air it will go 11teens.☺

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PostPosted: Tue Jun 19, 2018 9:42 am 
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Joined: Wed Oct 23, 2002 7:57 pm
Posts: 6019
Location: Waynesboro, Pa.
Car Model*: 65 Valiant 2Dr Post
Quote:
First thing you need to do is check pinion angle, then get more rear compression so it quits crushing the tires. Then, you can start tuning. Too much pinion angle will tend to make the car violent.

Dizduster on Moparts put up some very good videos last fall about shock tuning. If you can get the wonderful Search function to work over there they are definitely a good watch.


What pinion angle do you need with a super light car with a transbrake? It also has Caltrac bars on it.

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2 Mopars come with Spark plug tubes. One is a highly refined, world class, racing machine. The other is a 426 CI. boat anchor!
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