THE GUIDE TO EVO X/RALLIART ENGINE PART SWAPPING. Can a mod pin this please? Too much incorrect information out there. 2.0L (4b11): You can swap pretty much every component from the Evo X or Ralliart. Throttle body, camshafts, intake manifold, pistons/rods/crankshaft will all work while staying unboosted. This isnt to say its an ideal swap, custom camshafts for naturally aspirated cars are the best way to go, same with a 4g69 throttle body is better than Evo X, but it can be done. All part swapping will require a tune. Camshafts will require a tune that advances the cam timing in order to prevent knock. You will also need to inspect tappets for wear patterns with the previous cams, and if there are they will need to be replaced (at only about 10 bucks a piece). No other parts are required, regardless of whatever youve heard. Throttle body swap isnt really worth it, as it only increases the bore size by about 2mm, but it can be done. Intake manifold will require swapping out the Evo X or Ralliart fuel rail and fuel pump. The forged pistons must be swapped at the same time as the rods and crankshaft, one cannot be installed without the other two or it will not fit. This is also completely stupid unless you are going turbo, as it will lower your static compression ratio and decrease your engine power (if you are boosting then it will allow you to safely run higher boost levels). 2.4L (4b12): While you cant swap the pistons/rods/crankshaft as your engine has a larger bore size, you can instead swap Dodge Caliber SRT-4 pistons without installing anything else. This however is the same as the 2.0L cars, and will lower your static CR and decrease your engine power without boosting. The 4b12 shares the same intake camshaft as the 4b11, but the exhaust camshaft is different. The best swap you can do here is just swapping the exhaust camshaft. Again, inspect tappets, but nothing else is required. Everything else that I mentioned for the 4b11 applies to the 4b12. For turbo parts, there is no difference between the 4b12 and 4b11. Anything than can be swapped for one can be swapped for the other. Without forged internals (i.e. Evo/Ralliart or SRT-4), the most boost you can run for a manual transmission car is about 11 psi. CVT transmissions can only run about 7-8 psi. The best thing you can do here is to get all OEM turbo parts, and, I cant stress this enough, STAY AWAY FROM THE RRM TURBO KITS!!!!!!!!!! The only blown motors or tranmissions Ive ever heard of from turboing their Lancer have come from those running too much boost pressure or those running the RRM turbo kit. My guess is is because they have a really shitty piggyback ECU system that they sell, but I dont really know. Manual transmissions can run the stock wastegate from either Evo X or Ralliart, depending on which turbo you buy, but the CVTs should purchase an adjustable wastegate such as Kinugawa and run at about .3 bar (the boost pressure can be increased by using a manual boost controller if desired). The lower intercooler piping will not fit unless you have swapped the intake manifold from the Evo or Ralliart. This will need to be modified or completely custom. The reason is that the stock manifold places the TB at about a 45 degree angle, will the Evo mani places the TB at a 0 degree (horizontal) angle. Theres a lot more, but too much to type, so if you have any specific questions just ask.
Posted on: Sat, 05 Jul 2014 04:49:58 +0000
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