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Brad
GenIII
4/02/2001
20:45:03
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 Subject: 5.2L cam specs
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Message:
What are the cam specs for the 5.2L? Lift and duration
97 5.2L
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Bernd
GenIII
4/03/2001
01:34:29
| RE: 5.2L cam specs
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Message:
Actual Lift: .432/.432 (Intake/Exhaust)
Duration: 264/250 (Intake/Exhaust)
IVO = 10
IVC = 61
EVO = 60
EVC = 21
Overlap = 30
Bernd D. Ratsch
1997 Dodge Dakota SLT
Supercharged w/Nitrous
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Brad
GenIII
4/03/2001
08:21:04
| RE: 5.2L cam specs
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Message:
Thanks Bernd!
97 5.2L
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Daniel D
GenII
4/03/2001
14:57:30
| RE: 5.2L cam specs
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Message:
any idea for specs on a 95 3.9?
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Brad
GenIII
4/04/2001
18:11:27
| RE: 5.2L cam specs
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Message:
Bernd,
Is it 264 intake or 250 intake? By the figures you gave for valves opening and closing it works out to 251 intake, 261 exhaust. I know centrelines com in to play too. Just wondering. Also what are the valve spring pressures?
97 5.2L
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14wntr
GenII
4/04/2001
18:43:12
| RE: 5.2L cam specs
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Message:
Are those figures the same for the 92 5.2L?
Guns cause crime like flies cause garbage!
92 4x4 5.2L Auto 3"FM
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Boomer
Dodge Dakota
1/05/2002
13:13:47
| RE: 5.2L cam specs
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Message:
I brought this back up to the top to see what I need to do about getting a new cam.
Bernd, after reading some of your respones, thanks for the info to others, I'll try and keep the lobe around 114.
So here is my story.
I have a 97 4x4, 5.2.
Currently running:
-JBA's headers, high flow cat, flomaster40 (lost tq due to less restrictive exhaust)
-Homebrew intake with feed from the removed rubber flap by the rad & Holley power shot filter.
-180 T-stat
-Soon to be e-fan BM 150 with BM 114 in front of the a/c.
-Soon to be IAT adjuster.
Wanting to add (all at the same time as the cam!)
-M1 2bbl
-Ported heads, not for sure, please help on which ones.
-50mm TB, figured better than 52 for non super.
-cam, of course
-Milodon cheater gear (if I can get it to work) or double roller timing chain
-Underdrive pullies
-roller rockers 1.6
-roller lifters (if possible)
-MSD offroad ignition and Blaster SS coil 8.5mm wires
-replace the homebrew with 14" round K&N, getting ready for ram air hood.
-Custom PCM flash for the pkg completion
-4.56 gears
I think that about sums it up. I want to be able to keep tq because I plan on getting a 4000lb boat and I like to off road a lot. But, I don't mind loosing a little as long as I have plenty of top end. This truck isn't a daily, so I need not worry about mpg. And no more warranty!
The cams I have looked at is around the 292/292 @.050" w/.509/.509 Is this too much cam and will I loose too much in the low end, after adding the M1 also? SHould I go a little lower in duration?
Last, but not least, can I keep the stock tq converter for the tranny with that cam?
I'll be going on a trip into never-never land, but should have limited net access, so I might not read this again until late Feb.
Thanks in advance.
Boomer
Yes, I'm joining the ranks of the membership upon return. Gotta get those inputs from others and discounts!
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Boomer
Dodge Dakota
JOIN HERE
1/09/2002
21:49:27
| RE: 5.2L cam specs
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Message:
anyone?!?!?!?!?
Ok I got a chance to check this.
Please!
Boomer
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CW
GenIII
1/09/2002
22:23:52
| RE: 5.2L cam specs
IP: Logged
Message:
Whooo. That is a flat tappet race cam. Very poor idle no torque below 3000rpm. If it is the one I am thinking of it has a 108 deg lob separation and 72 degrees of over lap. Not even that liveable in a 360 carb application.
Cams you should be looking at are the comp cams 254HR-12 and 262HR-12
At the bottom of the page third section down under present magnum engines.
The one I reccomend the most is Hughes Engines HER0814AL
It has the 114 degree lobe separation angle and a good lift as well. Don't forget the valve springs as well. Sounds like a fun project. Wish I had that many easy mods for my truck. I am really excited about Bernds turbo.
2001 RC 4.7 5sp 9.25" 3.92 LSD
Ported throttle body, IAT adjuster, 3" flowmaster cat back, TPS @ .76V, 4" cold air, roadmaster active suspention
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JS
Dodge Dakota
JOIN HERE
1/10/2002
03:12:27
| RE: 5.2L cam specs
IP: Logged
Message:
I thought magnum engines have roller lifter in them stock???
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CW
GenIII
1/10/2002
09:00:07
| RE: 5.2L cam specs
IP: Logged
Message:
Thats why it won't work.
2001 RC 4.7 5sp 9.25" 3.92 LSD
Ported throttle body, IAT adjuster, 3" flowmaster cat back, TPS @ .76V, 4" cold air, roadmaster active suspention
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