The two versions are complete different architectures, both the engine and the vehicle. Major fabrication would be required and many, many expensive parts not available used just to make the engine run.Was wondering if putting a 453 engine into a 451 would be possible? Considering the engine size and everything else
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Back up a step. What are you trying to achieve by doing this? What does the 451's existing Mitsubishi engine not do that you expect the 453's Renault engine to do?
The 453's engine makes more power. It has a turbo. Fair enough ... you can put a turbo on the 451's Mitsubishi engine and make even more, and although the turbo is an expensive kit, it will cost less than your proposed engine swap would.
Gearshifting? The transmission that the 453's engine is attached to is either a fully manual transmission with a mechanical shift lever and linkage and clutch pedal that your 451's bodyshell and interior don't have places for and still be "nice" without a lot of fabrication work, or it's a fully automatic transmission with electronic controls that are incompatible with your vehicle's electronics.
Engine swaps in a '68 Chevelle were a piece of cake. No electronics, lots of space to work with, everyone's engines mounted pretty much in the same way (minor engine mount and bracket modifications were all that were needed), everyone used a plain ordinary mechanical accelerator cable to a carburetor. No emission controls to deal with. Even if you wanted to put a Chevy engine into a Ford (it's been done many times) it really wasn't all that hard.
It ain't like that any more.
If you like the 453's refinement, and better shifting (whether fully manual or fully automatic), and more power then buy a complete 453 car with engine and transmission already installed and with a full warranty and leave it alone!
Unless he swapped the mitsubishi engine out for a Hyabusa engine or something along those lines. Then it'd probably have no trouble demolishing a WRX.... or most any other car for that matter. But that requires far more than just take engine out, put engine in, and wire it up properly.This is the 3rd thread he has started asking about engine swaps. A smart is what it is. He wants to beat his buddies Subaru WRX(or whatever it is), and that's not going to happen with a smart. Starting a different thread isn't going to get you a different answer.
Variable-vane-geometry turbochargers are not commonly applied to gasoline engines. Yes it's been done but doing it on your own will be an uphill battle. VGT turbochargers are commonly used in diesels nowadays ... but the conditions in the exhaust manifold are different from those of a gasoline engine.Ok. Would the 451 have enough room for a variable turbo?