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    LRP Spec 3 or OS VG 30

    What pipe was he running? The Picco is very pipe picky, and seems to run best with a 086 or similar. Given identical setups, the OS .30 may have a slight off the line advantage, but it quickly loses steam as RPM levels climb, while the Picco keeps on revving.
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    HPI ribbed pipe tune issues

    Romper: Paragraph breaks, man! Yep, but not necessarily problems, just poor relative performance. The ribbed pipe is a brilliant marketing strategy, it was designed with appearance and sound in mind to impress the n00bs. It doesn't work well on any engine, at any RPM range in my experience...
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    LRP Spec 3 or OS VG 30

    Picco clone or not, they are still amazing engines. Anyway, aside from the Nova Rossi 28XRP, there is no stock engine that can run with a Picco P3 28. The stock Picco will outpower a modded LRP from bottom to top. The Picco is also a MUCH higher quality engine, using much harder and more...
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    LRP Spec 3 or OS VG 30

    The Picco P3 28 with a 086 pipe will blow both engines away from the bottom of the RPM range to the top.
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    diff help

    I lost 3 pinion gears during the first 2 gallons on the truck due to lack of shimming. The crappy diff bearings let go at around the 8 gallon mark. I replaced them with HPI bearings, shimmed the diff assembly such that it was solid in the X bulkhead/gearbox, then shimmed the pinion until no...
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    diff help

    Once you have the 6 internal diff gears housed in aluminum cups with steel pin/gear supports, and the ring/pinion gears shimmed correctly in X bulkless cases (Or GPM aluminum cases, but the one piece design of the X setup seems to be solid and eliminates most of the flex), the diffs are 99%...
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    Hpi 5.9 X-dyno results

    In terms of engine performance, the torque curve tells all, not the HP curve. HP may be a fairly good comparison tool, but it is NOT useful in terms of evaluating acceleration throughout the RPM range. In this application, torque is essentially the rotational force applied to the drivetrain, and...
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    Original Savage arms VS Savage X arms

    I've been wondering if HPI intentionally decreased the thickness of the arms at certain areas to increase their elasticity, which would reduce the force on the hinge pin area during violent impacts (For those of you who prefer practical physics, think about how a firearm recoil absorber absorbs...
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    Hpi 5.9 X-dyno results

    In addition to what scrog stated, the torque curve (not peak torque) is what you should be looking at. HP is a fairly useless measurement.
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    HPI ribbed pipe tune issues

    ALL HPI pipes are complete crap. The polished pipe is good for making engines sound loud (And if it is louder, it MUST be more powerful!!!!!!!), and the ribbed pipe could possibly make a decent silicone gel mold for use in a certain non R/C related application, but otherwise, they are useless...
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    Original Savage arms VS Savage X arms

    Has anyone noticed a difference in durability between these 2 setups?
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    Hpi 5.9 X-dyno results

    I'm impressed by this engine's mid range torque. Too bad they tested it with the crappy HPI polished pipe. A better tuned pipe should significantly decrease the torque drop off at high RPM.
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    most dissapointing hop ups ?

    The worst "upgrade" I have ever purchased would have to be the FullforceRC bearing kit. After a stock differential side bearing finally let go after 12 gallons of hard bashing, I purchased this kit for about 30 bucks, and replaced all of the bearings in the truck. After 1.5 gallons of fuel, I...
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