Nostalgia Question :

Curmudgeon · 01-27-2011, 02:31 AM

Did anyone use an Edelbrock "Smokey Ram" manifold back in the old days ? Always wondered how well they worked . Saw possibilities for distribution problems and narrow power band ,just wondering how they compared with single plane or high rise .

BlueOval Ralph · 01-27-2011, 08:14 AM

Some tried them Chrysler had a box for the Hemis (NASCAR) as did FORD with the BOSS 429 but you hit the nail on the head about distribution and throttle response.

Quote:

Originally Posted by Curmudgeon

Did anyone use an Edelbrock "Smokey Ram" manifold back in the old days ? Always wondered how well they worked . Saw possibilities for distribution problems and narrow power band ,just wondering how they compared with single plane or high rise .

Dwight Southerland · 01-27-2011, 09:16 AM

Under uniform acceleration, the manifold could be made to be pretty efficient. When used in constantly changing engine speed conditions (on and off the gas like a road racer) they were hard to make work. The large plenum area made it necessary to have large accelerator pump shots to cover the volume of air in the plenum. That made for inconsistent A/F mixtures and thus inefficent power levels and performance. Also, since one of the ideas behind the design was to make uniform runner length, the effective power band tended to be narrower than on single plane manifolds with a variety of runner lengths.

Alan Roehrich · 01-27-2011, 11:30 AM

There is actually a thread over on Speed Talk in the forums about these intakes. It's a pretty interesting thread, if you're interested in the manifolds.

http://www.speedtalk.com

Rich Biebel · 01-27-2011, 02:17 PM

There was one sitting on a shelf in the shop I used to wrok at. It was tried by a racer running C/SM at the time when the intake first came out. Results were poor and it ened up collecting dust...

Curmudgeon · 01-27-2011, 10:37 PM

Thanks guys . as I remember it was written up as best thing since sliced bread,but never remember anyone ever using one back home .

art leong · 01-27-2011, 10:42 PM

The Chrysler one was called the "rat roaster" Edelbrock even put RR 1 (inline) and RR 2 (crossram). It only worked when you glued popsicle sticks inside. LOL
This is true. No joke.

Jeff Lee · 01-28-2011, 01:14 AM

AMC factory '69 SS/AMX used Edelbrock cross-ram STR-11. As I'm told, worked well when re-worked considerably inside to prevent puddling of fuel.
Art is correct, Chrysler and AMC racers used epoxy and pop sickle sticks.
It was even outlined in the old Direct Connection manuals along with recommended staggered jetting.

doug schriener · 01-31-2011, 07:50 PM

Hi-I remember when it was released Smokey said it would be a damn good manifold but you were gonna have to work with it particularly with pump shot with the plenum like Dwight mentioned.

Curmudgeon · 02-01-2011, 03:10 AM

When I read the write-ups at the time , thought straight runners looked like good idea but had doubts about large plenum and also about mixture making a 180degree turn into runners . At time was using modified TR1-X and didn't have cash reserves to play with new ideas anyway . Thanks for much interesting info and answering sume questions I've had for years .

01-27-2011, 02:31 AM	#1
Curmudgeon Junior Member Join Date: Jan 2011 Location: Asheville,N.C. Posts: 54 Likes: 0 Liked 0 Times in 0 Posts	Nostalgia Question : Did anyone use an Edelbrock "Smokey Ram" manifold back in the old days ? Always wondered how well they worked . Saw possibilities for distribution problems and narrow power band ,just wondering how they compared with single plane or high rise .

01-27-2011, 09:16 AM	#3
Dwight Southerland VIP Member Join Date: Dec 2001 Location: Arkansas - In the middle of everything. Posts: 1,999 Likes: 64 Liked 772 Times in 192 Posts	Re: Nostalgia Question : Under uniform acceleration, the manifold could be made to be pretty efficient. When used in constantly changing engine speed conditions (on and off the gas like a road racer) they were hard to make work. The large plenum area made it necessary to have large accelerator pump shots to cover the volume of air in the plenum. That made for inconsistent A/F mixtures and thus inefficent power levels and performance. Also, since one of the ideas behind the design was to make uniform runner length, the effective power band tended to be narrower than on single plane manifolds with a variety of runner lengths.

01-27-2011, 11:30 AM	#4
Alan Roehrich Veteran Member Join Date: May 2006 Location: Murfreesboro TN Posts: 5,105 Likes: 1,564 Liked 1,789 Times in 408 Posts	Re: Nostalgia Question : There is actually a thread over on Speed Talk in the forums about these intakes. It's a pretty interesting thread, if you're interested in the manifolds. http://www.speedtalk.com __________________ Alan Roehrich 212A G/S

01-27-2011, 02:17 PM	#5
Rich Biebel VIP Member Join Date: Jun 2007 Location: Northern New Jersey suburbs Posts: 2,314 Likes: 25 Liked 544 Times in 213 Posts	Re: Nostalgia Question : There was one sitting on a shelf in the shop I used to wrok at. It was tried by a racer running C/SM at the time when the intake first came out. Results were poor and it ened up collecting dust... __________________ Rich Biebel S/C 1479 Stock 147R

01-27-2011, 10:37 PM	#6
Curmudgeon Junior Member Join Date: Jan 2011 Location: Asheville,N.C. Posts: 54 Likes: 0 Liked 0 Times in 0 Posts	Re: Nostalgia Question : Thanks guys . as I remember it was written up as best thing since sliced bread,but never remember anyone ever using one back home .

01-27-2011, 10:42 PM	#7
art leong VIP Member Join Date: Dec 2001 Location: Richmond Hill, Georgia Posts: 2,003 Likes: 0 Liked 1 Time in 1 Post	Re: Nostalgia Question : The Chrysler one was called the "rat roaster" Edelbrock even put RR 1 (inline) and RR 2 (crossram). It only worked when you glued popsicle sticks inside. LOL This is true. No joke. __________________ Art Leong 2095 SS

01-28-2011, 01:14 AM	#8
Jeff Lee VIP Member Join Date: Jul 2007 Location: Anthem, Arizona Posts: 2,766 Likes: 0 Liked 3 Times in 3 Posts	Re: Nostalgia Question : AMC factory '69 SS/AMX used Edelbrock cross-ram STR-11. As I'm told, worked well when re-worked considerably inside to prevent puddling of fuel. Art is correct, Chrysler and AMC racers used epoxy and pop sickle sticks. It was even outlined in the old Direct Connection manuals along with recommended staggered jetting. __________________ Jeff Lee 7494 D/S '70 AMX

01-31-2011, 07:50 PM	#9
doug schriener Junior Member Join Date: Oct 2003 Location: pennock,mn Posts: 83 Likes: 21 Liked 7 Times in 6 Posts	Re: Nostalgia Question : Hi-I remember when it was released Smokey said it would be a damn good manifold but you were gonna have to work with it particularly with pump shot with the plenum like Dwight mentioned.

02-01-2011, 03:10 AM	#10
Curmudgeon Junior Member Join Date: Jan 2011 Location: Asheville,N.C. Posts: 54 Likes: 0 Liked 0 Times in 0 Posts	Re: Nostalgia Question : When I read the write-ups at the time , thought straight runners looked like good idea but had doubts about large plenum and also about mixture making a 180degree turn into runners . At time was using modified TR1-X and didn't have cash reserves to play with new ideas anyway . Thanks for much interesting info and answering sume questions I've had for years .