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Piston/Rod Combo

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Old Aug 8, 2003 | 02:01 PM
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Question Pison/Rod Combo



Where can I get a good compb?
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Old Aug 8, 2003 | 04:25 PM
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RPW could hook you up, although you will have to go through the guys at Vision Imports (visionimports.com). RPW has been doing Mitsu's for years and will be able to get you pretty much whatever you want. You can check out RPW at www.rpw.com.au.
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Old Aug 12, 2003 | 07:32 PM
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Re: Pison/Rod Combo

i'm assuming you're replacing the weakest link; the piston.
is the rod just as weak and what about the crank? can the crank handle 200+ HP?

Originally posted by Chain Reaction


Where can I get a good compb?
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Old Aug 12, 2003 | 08:48 PM
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The crank can handle over 200 no prob. The pistons are definitely weak, go forged and think about coating the tops and skirts too (it is worth the small investment). The rods are good to about 9 psi maybe a little more. Too much more and shot peening would be a good idea. If you want to run a lot of boost, then you need to get some forged rods or something similar.
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Old Aug 12, 2003 | 08:52 PM
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yeah and speculations are that the head gasket is only good till about 11 or 12 psi.
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Old Aug 12, 2003 | 08:58 PM
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RPW has head gaskets to take care of that problem.
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Old Aug 12, 2003 | 09:02 PM
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yep i was just stating that the next inline after the piston, rod, crank is the head gasket. the i also think head bolts are a potential point of failure. funny side note is the 2002 are stronger headbolts than the 2003 ones.
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Old Aug 12, 2003 | 09:50 PM
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the rods in the lancer suck they are the weakest link
the crank can handle almost 350 hp
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Old Aug 12, 2003 | 11:21 PM
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Should not worry about the crank until revving it like crazy.
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Old Aug 15, 2003 | 10:30 AM
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strenghening parts for more HP

what about valves? i'm probably going to aim for high 200's or low 300's. to do this the parts i need to upgrade to handle this kind of power are :
rods
pistons
head gasket
head bolts

valves?
anything else like fuel pump, oil pump, motor mounts, tranny?

Originally posted by liquidlancer
the rods in the lancer suck they are the weakest link
the crank can handle almost 350 hp
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Old Aug 15, 2003 | 10:34 AM
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Might as well upgrade the valve springs too.
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Old Aug 15, 2003 | 10:45 AM
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No one's passed the points wher anything else really needs to be changed...cept maybe the clutch. It will slip after a while, but it's not a problem point per se.
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Old Aug 17, 2003 | 11:55 AM
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strengthening mods

i just talked to someone locally who worked at a performance ship as a mechanic and said that as long as you have the engine tuned right and it's not detonating, you don't have to re-inforce the internals unless you go up to 400+ HP.

Originally posted by HobieKopek
No one's passed the points wher anything else really needs to be changed...cept maybe the clutch. It will slip after a while, but it's not a problem point per se.
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Old Aug 17, 2003 | 12:28 PM
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From: Jerzey
don't forget you'll have to resleeve the block to handle the higher boost.....
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Old Aug 17, 2003 | 01:09 PM
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im planning to go up to low 300's. soon, ill be upgrading the internals. (camshaft, camgear, valve springs) then ill port and polish my head. also get RPW custom pistons (8.6:1). and shoot and peen my rods. i think its all ill need for that much power. but i just want to make sure. any more ideas?
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