Slant *       6       Forum
Home Home Home
The Place to Go for Slant Six Info!
Click here to help support the Slant Six Forum!
It is currently Wed Oct 08, 2025 6:34 am

Unanswered topics | Active topics


» » Racing » Racing Q & A

All times are UTC-07:00



Post new topic  Reply to topic  Page 1 of 3
  [ 34 posts ]  Go to page 1 2 3 Next
  Print view Previous topic | Next topic 
Author Message
slant2340
 Post subject: Carb Spacer
PostPosted: Tue Aug 06, 2013 8:18 am 
Offline
2 BBL ''SuperSix''

Joined: Sun Nov 11, 2012 9:23 am
Posts: 14
Location: Massachusetts
Car Model:
Anyone find a benefit to running a carb spacer? Currently have a Clifford intake with a Carter AVS off a 273. I have a 1" & 2" HVH Super Sucker spacers available to try. I know they work great on V8's just not sure the SL6 will respond the same. I'm thinking it will give it better fuel atomization and maybe giving it a little more plenum volume might help on a combination strictly being used a bracket race car.

_________________
1972 Dodge Dart
Best ET & MPH 14.26 @ 92
Top
   
Reply with quote  
DusterIdiot
 Post subject: Room under the hood.
PostPosted: Tue Aug 06, 2013 8:23 am 
Offline
Board Sponsor
User avatar

Joined: Tue Oct 29, 2002 8:27 pm
Posts: 9714
Location: Salem, OR
Car Model:
The taller versions work pretty good on the clifford intake, but the room under the hood of an A-body is limited due to the hood so you may note be able to get the 2" in there without a drop air cleaner.

I know of one Dodge Truck in Oregon that uses a 4" spacer and it increased the low end torque and overall driveability of the slant in the heavy vehicle.

-D.Idiot
Top
   
Reply with quote  
slant2340
 Post subject: Re: Room under the hood.
PostPosted: Tue Aug 06, 2013 9:01 am 
Offline
2 BBL ''SuperSix''

Joined: Sun Nov 11, 2012 9:23 am
Posts: 14
Location: Massachusetts
Car Model:
Yeah there is limited space under the A-Body hood but i do have a drop base air cleaner on it right now and a couple others i can try. Torque is definitely what i'm after to improve.

_________________
1972 Dodge Dart
Best ET & MPH 14.26 @ 92
Top
   
Reply with quote  
slantzilla
 Post subject:
PostPosted: Fri Aug 09, 2013 10:32 am 
Offline
Board Sponsor & Moderator
User avatar

Joined: Thu Oct 17, 2002 7:27 pm
Posts: 14718
Location: Park Forest, Illinoisy
Car Model: 68 Valiant
On one of my early combinations I tried a 1" 4 hole spacer on a Clifford intake with a 390 Holley. It was worth a tenth in the 1/4 mile. :D

_________________
Official Cookie and Mater Tormentor.
Top
   
Reply with quote  
Greg Ondayko
 Post subject:
PostPosted: Fri Aug 09, 2013 7:21 pm 
Offline
Supercharged
User avatar

Joined: Sat Nov 27, 2004 8:03 pm
Posts: 9924
Location: IRWIN PA
Car Model:
that is on the list of expierements I want to try on ruster drag car project. I have to modify the hood or cut some scoop onto there to do this project.


I have the same one Dennis describes.

Gary Bruner in TN. has a pretty tall 2 or 2.5 spacer on his Clifford manifold. he runs high 12s or low 11s in that car.


good luck.

Greg

_________________
http://www.youtube.com/hyperpack
Image
Top
   
Reply with quote  
Greg Ondayko
 Post subject:
PostPosted: Mon Aug 26, 2013 10:17 am 
Offline
Supercharged
User avatar

Joined: Sat Nov 27, 2004 8:03 pm
Posts: 9924
Location: IRWIN PA
Car Model:
I tried the 1" spacer on ruster this weekend and did not see any clear advantage.

It was running mid 12.20s as it usually does in that weather.

I Might have to try a 2" or more spacer.


And thhat might require some hood modifications.



Greg

_________________
http://www.youtube.com/hyperpack
Image
Top
   
Reply with quote  
CNC-Dude
 Post subject:
PostPosted: Mon Aug 26, 2013 10:37 am 
Offline
Turbo EFI

Joined: Sat Feb 20, 2010 10:23 am
Posts: 1343
Location: N. Ga.
Car Model: 64 Valiant
Were you using a 4 hole spacer or open. The HVH spacers mentioned above are a solid 68 HP gain and a mild SBC.....I know them pretty well there, the next time your in K'ville i'll see if I can arrange a private tour.

_________________
There's no such thing as too much cam....only not enough engine!
Image
Top
   
Reply with quote  
Greg Ondayko
 Post subject:
PostPosted: Mon Aug 26, 2013 11:24 am 
Offline
Supercharged
User avatar

Joined: Sat Nov 27, 2004 8:03 pm
Posts: 9924
Location: IRWIN PA
Car Model:
Quote:
Were you using a 4 hole spacer or open. The HVH spacers mentioned above are a solid 68 HP gain and a mild SBC.....I know them pretty well there, the next time your in K'ville i'll see if I can arrange a private tour.
It was a 4 hole.


The clifford Carb Adapter I have is a 4 hole so I think I would need to cut or modify the center section out of the clifford adapter to get the open one to work correctly or am I mistaken here?


Greg

_________________
http://www.youtube.com/hyperpack
Image
Top
   
Reply with quote  
Greg Ondayko
 Post subject:
PostPosted: Mon Aug 26, 2013 11:38 am 
Offline
Supercharged
User avatar

Joined: Sat Nov 27, 2004 8:03 pm
Posts: 9924
Location: IRWIN PA
Car Model:
Here are the HVH quick fuel selections for a 4150 squarebore carb base as I have.

http://www.summitracing.com/search/bran ... h%20spacer


What do you sages suggest; as I was less then impressed with the No name aluminum 1" four hole spacer that I had tried :-(


Thanks,

Greg

_________________
http://www.youtube.com/hyperpack
Image
Top
   
Reply with quote  
Kidd
 Post subject:
PostPosted: Mon Aug 26, 2013 8:43 pm 
Offline
Turbo Slant 6

Joined: Wed Sep 13, 2006 7:41 am
Posts: 922
Location: Eureka
Car Model:
I run a 2 inch spacer under my QF carb on my drag car.With a drop base, I can run a 2 inch K/N aircleaner.I also have a fiberglass hood on my 62 Valiant w/ no scoop.....and it fits. I KNOW my car is slower without it. :shock:

_________________
Wife's: 64 Valiant
My: 70 Road Runner, 67 Barracuda, AND the 62 Valiant drag car!!
Top
   
Reply with quote  
CNC-Dude
 Post subject:
PostPosted: Tue Aug 27, 2013 9:53 am 
Offline
Turbo EFI

Joined: Sat Feb 20, 2010 10:23 am
Posts: 1343
Location: N. Ga.
Car Model: 64 Valiant
When the HVH spacers first came out about 9 years ago they were only available in the 2" thick size, and thus the 68 HP claims. A standard 1" thick design spacer might not always provide a noticeable increase in all situations. But I did design and manufacture a set of 1" spacers for a while that were a 2 hole design for the vintage carb 2 BBL market that when used as a 3 x 2 setup, showed a 15 HP gain.

_________________
There's no such thing as too much cam....only not enough engine!
Image
Top
   
Reply with quote  
emsvitil
 Post subject:
PostPosted: Tue Aug 27, 2013 3:40 pm 
Offline
Supercharged

Joined: Thu May 12, 2005 11:50 pm
Posts: 6291
Location: So California
Car Model: 64 Plymouth Valiant
Quote:
When the HVH spacers first came out about 9 years ago they were only available in the 2" thick size, and thus the 68 HP claims. A standard 1" thick design spacer might not always provide a noticeable increase in all situations. But I did design and manufacture a set of 1" spacers for a while that were a 2 hole design for the vintage carb 2 BBL market that when used as a 3 x 2 setup, showed a 15 HP gain.

So with a 1" spacer under a BBS I should get 7.5 HP.........

:wink:

_________________
Ed
64 Valiant 225 / 904 / 42:1 manual steering / 9" drum brakes

8)
Top
   
Reply with quote  
CNC-Dude
 Post subject:
PostPosted: Tue Aug 27, 2013 8:59 pm 
Offline
Turbo EFI

Joined: Sat Feb 20, 2010 10:23 am
Posts: 1343
Location: N. Ga.
Car Model: 64 Valiant
Well maybe not with your garden variety spacer, but with mine I would say that is reasonable to expect. 8)

_________________
There's no such thing as too much cam....only not enough engine!
Image
Top
   
Reply with quote  
Kidd
 Post subject:
PostPosted: Wed Aug 28, 2013 4:00 pm 
Offline
Turbo Slant 6

Joined: Wed Sep 13, 2006 7:41 am
Posts: 922
Location: Eureka
Car Model:
Forgot to mention, Mine is a Moroso non metallic open design.

_________________
Wife's: 64 Valiant
My: 70 Road Runner, 67 Barracuda, AND the 62 Valiant drag car!!
Top
   
Reply with quote  
Rick Covalt
 Post subject:
PostPosted: Wed Aug 28, 2013 5:24 pm 
Offline
Board Sponsor & SL6 Racer

Joined: Wed Oct 23, 2002 7:57 pm
Posts: 9013
Location: Waynesboro, Pa.
Car Model: 65 Valiant 2Dr Post
Quote:
What do you sages suggest;
I suggest that $127 is too much for a carb spacer!! Wow, I am in the wrong business.
Rick

Yeah, yeah,I know. Speed cost money, how fast do you want to go!

_________________
2 Mopars come with Spark plug tubes. One is a world class, racing machine. The other is a 426 CI. boat anchor!
Image
12.70 @ 104.6
Image
Top
   
Reply with quote  
Display posts from previous:  Sort by  
Post new topic  Reply to topic  Page 1 of 3
  [ 34 posts ]  Go to page 1 2 3 Next

» » Racing » Racing Q & A

All times are UTC-07:00

Who is online

Users browsing this forum: No registered users and 0 guests

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Limited