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Custom Dodge Ram Performance Mods - Engine - 5.2 Liter V8 Discuss modifying your Dodge Ram with Performance Parts and Accessories!


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  #11  
Old 11-23-2011, 01:29 PM
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Also you can change valve springs later on with the head on, but it's more of a PITA, you need to fill the cylinder with compressed air to keep the valve from falling out.
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Old 11-23-2011, 01:36 PM
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well with whatever you decide to do I would aslo recomend a Superchips flashpaq
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Old 11-23-2011, 01:40 PM
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i had a superchips flashpaq, i upgraded and went with a custom tune from hemifever, difference was significant


does anybody know of a good cam that can be used with stock heads and stock rockers that will add decent performance?
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Old 11-23-2011, 01:59 PM
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really??? iv been wondering about a tunner? how much did that run you?? and a comp Xtreme energy cam would be perfect... did 1 on my last ram
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Old 11-23-2011, 02:38 PM
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i dont remember exactly how much it was, i think it was around 350 for it

its a sct tuner with a custom tune from hemifever

just google "hemifever tuning"

you email him what you have done to your truck

he loads the tune in that will work best, and i guess you get rid of the torque management, which is quite something
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Old 11-26-2011, 06:54 PM
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test compression of eng it should be a minimum of 100lb with a min of 40lb varence between cyl. if that checks out your cam set up should match intake rpm band. the springs valves head and cam should be done at the same time. (aggrivation of haveing to tear into it another time.) not to say post above was a bad idea at all but pull the heads once and be done with it if the lower end is in good shape.
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Old 12-03-2011, 11:28 PM
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Easy, switch out the 4.56 gears with locker to a 3.92 rear. That will simply give your vehicle more peep performance by getting the wheels to turn more frequently. The 4.56 rear gearing sounds like your truck belongs in a mud pit at a tractor pull vs. jumping on it at a light to smoke the tires by rocking and rolling.

I would not go with the Holley mod if your engine is a Magnum type. Why go backwards in fuel technology and performance?

High flow CAT is a good choice. Do that too. The engine really breathes freely for upping the power.

Use Valvoline's PowerSyn synthetic grease for all the wheel bearings. It has a good amount of Molly in it and exceeds our grease bearing specs. mot only will the power move your truck, but it will move it more freely. PLUS, the other benefit is better MPG !!! A double hitter here in my book.

Redline 75W90 synthetic rear gear fluid with friction modifier is a big help. It's really formulated for the Chrysler rear ends. It exceeds the Chrysler TSB requirements for our trucks.

Ding the TB intake mod by doing the grind and polish. This really helps the air to flow into the engine better. Whith a high flow CAT and exhaust, you WILL NOTICE a difference.

Simply stated ... side-gap the Auotlite platinum plugs.

Since your 5.2L is a 1998, clean the IAC. Also do the TPS mod to ensure the 0.7 volts of readiness.

Leave the exhaust manifold alone. Also, a bigger single exhaust pipe works better for the Magnum engines rather than dual pipes.

Get the Goodyear Gatorback belt for the engine. It reduces the drag on the engine that other belts tend to due.

As for the fuel injectors, try the B-12 Chemtool cleaner for at least four tank fillups. this past holiday, I drove 1500 miles round trip. Used four bottles of the stuff one way. Going home was pure joy when the injectors flowed sooooo smoothly. Sure, going up the B12 seemed like the engine was sputtering, BUT that is how it was cleaning them. Prior the engine was mainly hesitating often.

You can also do the IAT mod, but I would do the dual selective mod of being able to switch between two IATs. One in the intake manifold and the other in the air-snorkle intake.
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  #18  
Old 12-06-2011, 03:58 PM
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well i went with the gears b/c i have bigger tires on there, 34" inches if i remember right, thats why i have 4.56 gears


i think i will do the high flow cat, i just cant find direct fit high flow cats around
magnaflow has direct fit, but they are not high flow

as far as the throttle body mod i dont have a dremel and that seems like something i could screw up easy

im going to have the truck get a compression test done in the spring when i get it back out, I let it warm up today, and did a little burnie with with it, the old girls still have it, but 0-60 leaves more to be desired.

i might have the motor gone thru this spring, new rings, seals, and gaskets, freshen things up a little, maybe that would help??
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