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Christian
Dodge Dakota
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2/02/2004
19:11:19
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 Subject: What's the diff. between......
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What's the difference between 1.6 or 1.7 roller rockers and a cam....Performance wise?
B/c I was thinkin about gettin all this with a cam.....
Throttle Body
Air Intake
Headers
Exhaust
PCM
Clutch
Gears
Intake
Ignition
Pulleys
Thermostat
...but i've been thinking about buying the V8performance.com Performance combo kit for $2100 and it includes roller rockers....Can you guys help me please?!?!!
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Crower
Dodge Dakota
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2/02/2004
19:19:52
| RE: What's the diff. between......
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ease of installation
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gen1dak
Dodge Dakota
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2/02/2004
19:46:40
| RE: What's the diff. between......
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Are you asking what the difference between 1.6 and 1.7 rockers is, or what the difference is between the packages you mentioned?
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Christian
Dodge Dakota
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2/02/2004
20:39:30
| RE: What's the diff. between......
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what's the difference performance wise between rockers vs a cam?
And do you think the stuff that i listed is ok to add to my Dak or do you guys have any other suggestions?
I'm planning on spending about $5000 on performance stuff for my Dak so let me know! Thanks!
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Christian
Dodge Dakota
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2/02/2004
20:45:34
| RE: What's the diff. between......
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Oh, it's a 97 dak 5.2 manual tranny CC
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Worthless
Dodge Dakota
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2/02/2004
21:15:52
| RE: What's the diff. between......
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The whole truck anit worth that much hahahaha......
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R/TBlues
Dodge Dakota
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2/03/2004
00:08:01
| RE: What's the diff. between......
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The 1.7 rollers will give you about the same advantage as swapping in a R/T cam. The cam is cheaper, but the rockers are easier to install.
For first timers, I would go for the M1, 1.7 rockers, headers, PCM upgrade/flash, 2 cases of beer, and one weekend. That should knock a full second off your 1/4mile for about $1,200.00.
How many miles does she have?
If she already has over a 100K then replace the water pump while your under the hood. Since you have the front of the engine off for the pump install, remove the radiator and have it boiled out. Since you have the pump and the radiator out of the way, go ahead and install a double roller timing chain. Well hell, since you have the timing chain removed, the intake and rockers removed, go ahead and drop in that R/T cam. Then call in sick Monday and Tuesday to pick up your radiator and recover from your hangover and go do some test runs. No one will be suspicious when they hear you drive up Wed. morning. All that for about $2K. Did I get carried away?
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Christian
Dodge Dakota
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2/03/2004
00:43:47
| RE: What's the diff. between......
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Not at all man, i really appreciate the info! If you have anymore thoughts .....POST'EM!
Thanks!
will the rockers give me a lumpy idle b/c that one reason i want to get a Hi-Perf. CAM!
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lumpy
Dodge Dakota
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2/03/2004
07:47:39
| RE: What's the diff. between......
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I am wondering the same thing, will it sound beefier with 1.7's, or a cam?????????????
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gen1dak
Dodge Dakota
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2/04/2004
08:51:56
| RE: What's the diff. between......
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Going with 1.7's will increase the specs of whatever cam you have, but then you have to look back at the cam anyway if you're still not happy with the results. Keep in mind that with 1.6's, you have a gross valve lift number of .432 with the 318. By going to 1.7's, this lift number goes to .459. This will help the engine breathe, and this means more HP. Not bad for a bolt-on. However, the stock cams are still very EPA-oriented. The lobes have very mild ramping...very pedestrian. If you start with a better cam (like the MP Magnum RT package) you'll have a much better foundation to build on. This particular cam pulls hard throu 6000 rpm. It's more than just lift figure, it's also the ramping profile and lobe separation, etc. Keeping in mind that moving to those 1.7's, you'll really need better springs as well. The new cam package will have matching springs to manage the greater lift figures. If, down the road, you feel the need for a bit more upper rpm power, you can still pop in the 1.7's. If you're happy with the cam, upgrade to roller 1.6's. Basically, the increased ratio rockers will improve what's there, but cannot fully correct the weaknesses of the stock cam.
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