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Bubbles
Dodge Dakota
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11/22/2005
00:33:45
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 Subject: Cam(s) 5.2 vs 4.7
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Would you see more or less of a gain in hp and torque on a cam swap with a 5.2 or a 4.7 or would they be about equal?
Lift and duration on the new cam being equal.
Thanx
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N56629
Dodge Dakota
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11/22/2005
06:33:30
|  RE: Cam(s) 5.2 vs 4.7
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There are no comparisons. If you made them both of equal lift and duration one of them would run like crap.
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toolfan
GenIII
11/22/2005
09:46:40
| RE: Cam(s) 5.2 vs 4.7
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do you own both a 5.2 and a 4.7? i would much rather swap the cam on a 4.7 than a 5.2 for its much easier. i would say the 5.2 cause i own one.
and some mods to slow it down!
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Bubbles
Dodge Dakota
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11/22/2005
14:11:06
| RE: Cam(s) 5.2 vs 4.7
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Sorry. If you increased them both equal amounts for lift and duration.
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GraphiteDak
GenIII
11/22/2005
23:53:25
| RE: Cam(s) 5.2 vs 4.7
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You mean swap BOTH cams on the 4.7 since it has TWO :)
Yeah. It is easier. You don't have to pull the distributor, intake, radiator, drain water, etc etc etc!
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Bubbles
Dodge Dakota
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11/23/2005
00:38:10
| RE: Cam(s) 5.2 vs 4.7
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What I mean is, if I increase the 5.2's valve lift from .432 inches to say .472 (.040 change).
And increase the 4.7's valve lift .040. Which change would see more power increase.Duration increases being equal also(5 degree increase on the 5.2 and on the 4.7).
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toolfan
GenIII
11/23/2005
01:15:22
| RE: Cam(s) 5.2 vs 4.7
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the 5.2 will make 14% more power at idle and 22% more at redline over the 4.7. and thats the truth.
and some mods to slow it down!
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Bubbles
Dodge Dakota
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11/23/2005
04:13:48
|  RE: Cam(s) 5.2 vs 4.7
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Thanx, Toolfan, Graphite.
So then the extra effort might be worth it.
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GraphiteDak
GenIII
11/23/2005
12:18:15
| RE: Cam(s) 5.2 vs 4.7
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I thought toolfan was being sarcastic with those numbers.
You weren't for real were ya tool fan? :p
Not that I have looked into it or anything. But never heard anyone talking power AT idle. LOL! I think he was joking.
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N56629
Dodge Dakota
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11/23/2005
13:13:25
| RE: Cam(s) 5.2 vs 4.7
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There might be dyno software out there that can give you those kind of figures but it is still pointless. Why would you limit the cams to equal changes? One engine might make better use of more lift than the other or it might make use of more duration or seperation. If you put limits on the cam design one engine is bound to suffer. Pick the best cam for each engine, look at some dyno tests and then decide which is more responsive.
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Bubbles
Dodge Dakota
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11/23/2005
20:24:14
| RE: Cam(s) 5.2 vs 4.7
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Anyone know a website where I can get some dyno results for the 318 (Cams or gears results).I'm sure that question has been asked alot,but I thought I'd ask any way ( maybe I should have just asked that in the first place).
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