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Im trying to start my build I’m going to throw on coilovers and a exhaust on it but I’m want to know ways to produce more HP I would like a new engine like 1JZ or a VR6 or I might just make HP with the 3.0 that’s in it already any tips?
 

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2009 GS Turbo. 2007 Mid Engine GT
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The 6G72 in the 3G isn't a very good one to build up. You'll find most of the quick 3G run 6G75 engines from a 4G or put 4G63 heads on their 4G64 blocks. 6G75 swaps are well documented on Club3g.com

1JZ/VR6 swap, you're going to be looking into a very high level of work. You'll need to customize your front subframe or swap it, and swap your rear subframe. If you're not already at a skill and tool level where building a custom turbo setup is an option, be warned, those swaps are even more work.


Beyond ALL that, the spyder is heavy and has poor chassis rigidity. To make it rigid, you'll end up adding more weight typically. It's not the car to buy if you want to be fast, it's the car to buy because you like it.
 
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