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Re: Long rams vs modern dual planes [Re: ScottSmith_Harms] #2621378
02/14/19 06:23 PM
02/14/19 06:23 PM
Joined: Jan 2003
Posts: 28,067
Irving, TX
feets Offline OP
Senior Management
feets  Offline OP
Senior Management

Joined: Jan 2003
Posts: 28,067
Irving, TX
Originally Posted By ScottSmith_Harms
Peak HP was 410 at 5,000, 421tq. It started falling off steadily past 5,000 rpm but the torque curve was very long and flat.


That's exactly what I'm looking for.

Consider the application.
5300 lbs
3.23 gears
tight converter
29" tires


Tons of torque everywhere is what I need.


We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind.
- Stu Harmon
Re: Long rams vs modern dual planes [Re: feets] #2621395
02/14/19 07:55 PM
02/14/19 07:55 PM
Joined: Jan 2003
Posts: 3,575
The Netherlands
BigBlockMopar Offline
master
BigBlockMopar  Offline
master

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Posts: 3,575
The Netherlands
I still like to put my '60 NewYorker on the dyno once to see what it makes with the longram stroker under the hood.
Unfortunatly I still need to fix a driveline balance issue which starts at higher 90-100mph speeds because of the custom made driveshaft and sliding yoke.

It also has 3.23 and the stock stall convertor in the transmission.

Re: Long rams vs modern dual planes [Re: ScottSmith_Harms] #2621403
02/14/19 08:15 PM
02/14/19 08:15 PM
Joined: Dec 2003
Posts: 22,695
Bitopia
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jcc Offline
If you can't dazzle em with diamonds..
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If you can't dazzle em with diamonds..
J

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Posts: 22,695
Bitopia
Originally Posted By ScottSmith_Harms
I had a couple ram engines rebuilt, one was a 1960 300F 413 engine with 63 300J short ram intakes and 3505s carbs. Stock stroke, stock compression, stock small valve heads with a very light pocket cleanup and a mild cam (similar to stock, went with a hyd roller) basically a stock rebuild but with lighter pistons and a warmer cam. I had it dyno'd and it performed well. TQ peak was at 3,600 rpm/351hp. Peak HP was 410 at 5,000, 421tq. It started falling off steadily past 5,000 rpm but the torque curve was very long and flat.


Being frank, I would be disappointed with those numbers, unless those are at the wheel. This is not directed at your motor, it just might be what it is combo. shock


Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.
Re: Long rams vs modern dual planes [Re: feets] #2621503
02/15/19 01:00 AM
02/15/19 01:00 AM
Joined: Jan 2003
Posts: 42,714
Spokane Washington
ScottSmith_Harms Offline
Mr Wizzard
ScottSmith_Harms  Offline
Mr Wizzard

Joined: Jan 2003
Posts: 42,714
Spokane Washington
It was about what I expected with restrictive heads and a very mild cam. Not a monster but it had gobs of torque all over the place. Better heads and a more aggressive cam would have certainly upped the ante, my goal was a fairly simple stock style rebuild with a few miner modern upgrades (lighter pistons, roller cam, etc.) they were added more for reliability than an attempt to add HP.

If I were building a ram engine for ultimate performance I'd build a 440 stroker with good flowing heads and would use a much more aggressive cam. The intakes would likely be more for show than anything at that point because with a build like that the intakes would become the choking point, a single plane with a big 4 barrel or EFI would be the choice for max HP. If I were wanting the max from the intakes on a big inch engine I'd likely have them extrude honed, or cut them open from the underside for some good material removal to increase the plenum size to the max then weld them back together.

Cam card was the first cam I used before going to the roller. Specs were similar.

.02

413 Long Ram Hydraulic Flat Tappet Ccam.jpg
Re: Long rams vs modern dual planes [Re: ScottSmith_Harms] #2621673
02/15/19 02:22 PM
02/15/19 02:22 PM
Joined: Sep 2003
Posts: 19,310
north of coder
moparx Offline
"Butt Crack Bob"
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"Butt Crack Bob"

Joined: Sep 2003
Posts: 19,310
north of coder
as the intended intake[s] on my 33 humpback panel, the intakes are really, as scott said, just for show.
however, there will be good heads, bigger cam, higher stall converter, bigger gears, and cut and welded intakes.
i know the shortcomings of this intake, but the truck shouldn't weigh much over 2500 lbs, so this combination should be a fun deal. [i hope !]
beer

Re: Long rams vs modern dual planes [Re: feets] #2621691
02/15/19 02:52 PM
02/15/19 02:52 PM
Joined: Feb 2003
Posts: 7,982
Scranton, PA
Montclaire Offline
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Posts: 7,982
Scranton, PA
I say go for it. I don't know if I would get into EFI but a set of long rams, a 509 cam, 2500+ stall converter and 3:91s would be a fun combo. Sure you could probably go faster with a good single plane but I guarantee you'll have a bigger smile on your face with those long tubes under the hood.

Re: Long rams vs modern dual planes [Re: Montclaire] #2621733
02/15/19 04:41 PM
02/15/19 04:41 PM
Joined: Dec 2003
Posts: 22,695
Bitopia
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jcc Offline
If you can't dazzle em with diamonds..
jcc  Offline
If you can't dazzle em with diamonds..
J

Joined: Dec 2003
Posts: 22,695
Bitopia
Originally Posted By Montclaire
I guarantee you'll have a bigger smile on your face with those long tubes under the hood.


Stating the obvious? laugh2 laugh2 up


Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.
Re: Long rams vs modern dual planes [Re: feets] #2624049
02/21/19 01:36 AM
02/21/19 01:36 AM
Joined: Feb 2010
Posts: 82
Oly Wash
racerlall Offline
member
racerlall  Offline
member

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Posts: 82
Oly Wash
there was a set of long rams on the Portland and or Seattle crags list that wear already cut up for for fuel injection I dint see then now they wear up fore a long time and he wanted a lot foe the setup

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