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20 March 2012 4 Comments

I have a Toyota MR2 1998 model that i would like to upgrade its performance. It natural aspirated SW20. What can be done to achieve above 200kw?
AutoModified Reply: Well N/A application are generally a bit more expensive to squeeze out power over a Turbo charged application.
starting off with the normal performance upgrades would a start to reaching your power gain, so a full branch and exhausts system for starters. The I would work the head with Cams and get it ported and bigger valves.
If you could provide us with a list of modifications that have been done we could better assist from there. Lets see what our other Toyota fans have to say.

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  • tashriq said:

    you can do a turbo conversion on that motor if you have the money.


  • sifiso said:

    No modifications have been done. It is your standard N/A engen.


  • Chris said:

    Hi There

    Firstly which motor has your car got? If its the 3s-fe your base power figure will be around 140hp, if its the 3s-ge you’re looking at 156hp. Im not sure if the sw20 was sold in South Africa so it’s difficult to guess which motor you have without you checking. Either of these engine will take a lot of work and cash to get you to your 200kw goal, its almost a double increase in power. Your cheapest and most reliable bet will be a direct engine swap to a 3s-gte motor. try somewhere like engine den or something. also if your car has an automatic transmission you will probably have to swap gearboxes to a manual mated transmission. the 3s-gte is rated at about 180kw as standard, which is almost there. you’ll obviously have to add a bit to accommodate the new motor like an uprated fuel pump, inter-cooler and piping which will probably have to be custom fabricated. I’m not sure how readily available these kinds of parts are in SA, and perhaps the inter-cooler will come included with the new engine.

    Just a thought


  • sifiso said:

    Hi Chris,

    The engine is a 3s-fe imported from Japan



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