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HyperGear vs Pulsar Turbo RB25DET


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Hi! 
 

I’m looking to replace my current turbo on my S1 RB25DET in order to make 600HP but maintain responsiveness. I’m looking at the HyperGear ATR43SS-3 in T3 .63 A/R or the Pulsar PSR3576 Gen2 T3 .82 A/R. I’m still learning how turbo sizes effect lag, response, and power band. I’m looking to see if anyone can share their experience with either of these turbos or can recommend another to meet my goal?

These are my mods:

• Running 91 octane most of the time and occasionally E85 on track days

• top mount twin scroll manifold 
• 44mm external wastage 
• 1300CC fuel injectors 
• mishimoto intercooler M-line 
• 3in intercooler pipes 
• g-reddy intake manifold 
• link g4+ 
• NZWiring trigger kit 
• GTR R35 coilpacks 
•  built bottom and top 
• 4” down-pipe and exhaust 

Edited by Eric0
Added type of engine
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