Dual/single mufflers ... horsepower??
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From: Ontario, Canada
Dual/single mufflers ... horsepower??
So, two questions.
1st. What sounds better, dual thrush, or single thrush mufflers with dual pipes. i was thinking dual pipes/mufflers after cat, will that affect performance or backpressure at all? and would it sound better or worse then single muffler dual pipes?...
2nd. How can i crank out some horsepower on a 318 without tearing it out? a Chip, CAI, Manifold? i plan on towing alot, and at the moment i have this 2wd 318, so i need it to have *****.
1st. What sounds better, dual thrush, or single thrush mufflers with dual pipes. i was thinking dual pipes/mufflers after cat, will that affect performance or backpressure at all? and would it sound better or worse then single muffler dual pipes?...
2nd. How can i crank out some horsepower on a 318 without tearing it out? a Chip, CAI, Manifold? i plan on towing alot, and at the moment i have this 2wd 318, so i need it to have *****.
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Joined: Jan 2008
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From: Sioux Falls, SD
Don't chip it, the only chips for these trucks are really iffy. A programmer is where its at.
Contact hemifever@aol.com. He can give you some price quotes for a SCT tuner, the best tuner out there for our trucks (IMO).
Contact hemifever@aol.com. He can give you some price quotes for a SCT tuner, the best tuner out there for our trucks (IMO).
Tuner... Yea, that's going to net you the most off the bat, but there are other things to think about. That intake manifold is going to need to be looked and and possibly changed. Due to what I have thought for a long time and what I am starting to see in these trucks, I can only recommend you invest in a different manifold that will eliminate the gasket all together.
With out really tearing into the motor, you can swap out the manifold, heads, cam, and rockers...
All of that should net you a nice little gain in performance and with the option of being SCT tuned, you can take full advantage of the mods instead of just part of them.
With out really tearing into the motor, you can swap out the manifold, heads, cam, and rockers...
All of that should net you a nice little gain in performance and with the option of being SCT tuned, you can take full advantage of the mods instead of just part of them.
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From: Ontario, Canada
Perfect. thanks! i thought about cam and rockers, but wasn't sure if i would have to pull the motor to do those... and what would be the limit on a cam for stock ? ...
also, which would sound better dual or single thrush? :P the first of all upgrades to my truck will be exhaust... then most likely the manifold, while thats off ill probly go ahead and do a cam/heads... THEN a cai.
also, which would sound better dual or single thrush? :P the first of all upgrades to my truck will be exhaust... then most likely the manifold, while thats off ill probly go ahead and do a cam/heads... THEN a cai.
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From: Ontario, Canada
what ive been told about cams for magnum 5.2's is that around 5.10 lift with stock pistons, the valves hit the pistons... and with the 1.6 ratio, you don't need an insane cam... and that 4.50/4.55 lift is like 4.80/4.85 lift, so keep it at 218/222 duration... is this true? would a 4.50/4.55 lift be pushing it, or would i be safe enough to get a 4.80/4.80 lift cam? i'd also be getting Harland sharp bolt on rocker arms, with 1.6 ratio/maybe the 1.7 ratio? (Harland Sharp s70036/s70037) and what heads would be appropriate? should i just port them and big valve them?
Eh, I'm not all that familiar with the specifics on the 5.2 as I should be. I know Aim probably has the info in his head or on a website somewhere. If he doesn't chime in tomorrow, fire him a PM and see what he says.
If there is any possibility down the road of you doing headers (which you should look at those as well) then I would say that you need to hold off on the exhaust unless you plan on unbolting the factory muffler and installing new. The reason I say this is because most likely you'll end up having to buy new pipe and pay to have it welded up (or your time) and in my eyes it is wasted money. Seems a lot better to do it all at once, eh?
As for the true dual versus a single in dual out, I don't think our rams really need duals. I don't think it will hurt you, but unless there is just a cool factor, I don't see the need. That is, unless you bore and stroke that 5.2 out... Never really heard Thrush mufflers on anything save for our 91 Astro van which has a V6... That was just the cheapest that Oreilly's had at the time.
Oh, one last thing, I'm pretty sure that you will have to remove the radiator in order to have enough clearance to get the cam shaft out, but that's not that big of an ordeal really.
If there is any possibility down the road of you doing headers (which you should look at those as well) then I would say that you need to hold off on the exhaust unless you plan on unbolting the factory muffler and installing new. The reason I say this is because most likely you'll end up having to buy new pipe and pay to have it welded up (or your time) and in my eyes it is wasted money. Seems a lot better to do it all at once, eh?
As for the true dual versus a single in dual out, I don't think our rams really need duals. I don't think it will hurt you, but unless there is just a cool factor, I don't see the need. That is, unless you bore and stroke that 5.2 out... Never really heard Thrush mufflers on anything save for our 91 Astro van which has a V6... That was just the cheapest that Oreilly's had at the time.
Oh, one last thing, I'm pretty sure that you will have to remove the radiator in order to have enough clearance to get the cam shaft out, but that's not that big of an ordeal really.
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Eh, I'm not all that familiar with the specifics on the 5.2 as I should be. I know Aim probably has the info in his head or on a website somewhere. If he doesn't chime in tomorrow, fire him a PM and see what he says.
If there is any possibility down the road of you doing headers (which you should look at those as well) then I would say that you need to hold off on the exhaust unless you plan on unbolting the factory muffler and installing new. The reason I say this is because most likely you'll end up having to buy new pipe and pay to have it welded up (or your time) and in my eyes it is wasted money. Seems a lot better to do it all at once, eh?
As for the true dual versus a single in dual out, I don't think our rams really need duals. I don't think it will hurt you, but unless there is just a cool factor, I don't see the need. That is, unless you bore and stroke that 5.2 out... Never really heard Thrush mufflers on anything save for our 91 Astro van which has a V6... That was just the cheapest that Oreilly's had at the time.
Oh, one last thing, I'm pretty sure that you will have to remove the radiator in order to have enough clearance to get the cam shaft out, but that's not that big of an ordeal really.
If there is any possibility down the road of you doing headers (which you should look at those as well) then I would say that you need to hold off on the exhaust unless you plan on unbolting the factory muffler and installing new. The reason I say this is because most likely you'll end up having to buy new pipe and pay to have it welded up (or your time) and in my eyes it is wasted money. Seems a lot better to do it all at once, eh?
As for the true dual versus a single in dual out, I don't think our rams really need duals. I don't think it will hurt you, but unless there is just a cool factor, I don't see the need. That is, unless you bore and stroke that 5.2 out... Never really heard Thrush mufflers on anything save for our 91 Astro van which has a V6... That was just the cheapest that Oreilly's had at the time.
Oh, one last thing, I'm pretty sure that you will have to remove the radiator in order to have enough clearance to get the cam shaft out, but that's not that big of an ordeal really.
SECOND, back pressure is bad, and is commonly confused with exhaust velocity. If your pipes are to big for your engine, you loose exhaust velocity which can kill torque.
If your going for heads get 2.02/1.60 valves, even a set of mopar R/T heads flow a little better than stock.
Here lol this is a pretty good start:
http://www.mopartsracing.com/parts/ram.html
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Joined: Jan 2010
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From: West Texas
If IIRC, you should be able to pull the cam out w/o removing the rad. It should come close, but make it out. If your going to do heads, cam, etc you could benifit from true duals or duals with an X-pipe. Do your exhaust all at one, headers (long tube or shorties) highflow cat (unless your gutting or chopping it off all together) then mufflers and however you want it looking.
SECOND, back pressure is bad, and is commonly confused with exhaust velocity. If your pipes are to big for your engine, you loose exhaust velocity which can kill torque.
If your going for heads get 2.02/1.60 valves, even a set of mopar R/T heads flow a little better than stock.
Here lol this is a pretty good start:
http://www.mopartsracing.com/parts/ram.html
SECOND, back pressure is bad, and is commonly confused with exhaust velocity. If your pipes are to big for your engine, you loose exhaust velocity which can kill torque.
If your going for heads get 2.02/1.60 valves, even a set of mopar R/T heads flow a little better than stock.
Here lol this is a pretty good start:
http://www.mopartsracing.com/parts/ram.html