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HPI Nitro RS4 3 Evo+

Old 05-05-2020, 04:16 PM
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HPINitroGuy
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Default Help please bigger motor for Nitro RS4 3 Evo+

hoping someone can help me with this, i want to upgrade the engine in my nitro rs4 3 evo+. had it for about 5 years now and want something more powerful but i have no clue what will fit this car. I would like a .21 but like I said I have no clue which engine will properly fit the car without modding anything. can anyone help with this please?

Last edited by HPINitroGuy; 05-05-2020 at 04:45 PM.
Old 05-27-2020, 09:46 AM
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HPINitroGuy
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So does anyone know??? I really want to upgrade the engine, does anyone know what will fit???
Old 05-29-2020, 12:36 PM
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D3MON
 
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.21 will not fit, it is a big block.
engines in the .12->.19 will fit.
as far as fitment, you will want to find either an "SG" crank engine (smooth crank) or long threaded crank, something like an SH18, O.S. .18 would fit, dynamite .19 would fit, but i am unsure of the exhaust as its a completely different exhaust. HPI G3.0 would fit.
if you purchase an engine with a SG style crank, you will need a flywheel nut to match the application.
Novarossi still makes a .12 on-road, might be a good fit, wont have the torque that you are used to, but the top end is where they shine.

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