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Originally Posted by Mr.K Z1 just released their rotrex supercharger kit and although the fit and finish looks amazing, I can't really comment on their numbers. At 10psi they require
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05-20-2023, 09:27 AM
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#1 (permalink) | |
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Enthusiast Member
Join Date: May 2018
Location: Rhode Island
Posts: 485
Drives: '09 370Z, '03 G35
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Quote:
This might be due to the fact that Topgunz kit can use a smaller pulley to get boost down low, then bleed off extra boost at high RPM. Z1 kit has a normal Turbosmart BOV so it can’t do that Sent from my iPhone using Tapatalk
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2009 Sport Touring | Platinum Graphite | GTM Stage 1 Supercharger | BC BR Coilovers | Hotchkis Swaybar | Z1 FUCAs | AME TM-02 Wheels | Z1 2-piece Front Rotors | Z1 Clutch & Flywheel | Invidia Gemini Catback | GTM Resonated Test Pipes |
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05-20-2023, 11:34 AM
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#2 (permalink) | |
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Track Member
Join Date: Jun 2020
Location: Toronto
Posts: 716
Drives: Red '18 Sport Manual
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Quote:
(or do you mean it just doesn't come setup like that out of the box?) |
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05-20-2023, 06:12 PM
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#3 (permalink) | |
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Enthusiast Member
Join Date: May 2018
Location: Rhode Island
Posts: 485
Drives: '09 370Z, '03 G35
Rep Power: 14421 |
Quote:
Yea exactly, it just comes with a normal BOV out of the box. Switch to a controlled BOV like Topgunz kit and I imagine the power would be very similar. Sent from my iPhone using Tapatalk
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2009 Sport Touring | Platinum Graphite | GTM Stage 1 Supercharger | BC BR Coilovers | Hotchkis Swaybar | Z1 FUCAs | AME TM-02 Wheels | Z1 2-piece Front Rotors | Z1 Clutch & Flywheel | Invidia Gemini Catback | GTM Resonated Test Pipes |
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03-25-2024, 05:35 AM
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#4 (permalink) | |
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Base Member
Join Date: Jun 2010
Location: Australia
Posts: 138
Drives: 2011 Nissan 370Z
Rep Power: 16 |
Quote:
I was under the impression that a smaller pulley creates higher top end power but less low end torque. |
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03-25-2024, 07:26 AM
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#5 (permalink) | |
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Enthusiast Member
Join Date: May 2018
Location: Rhode Island
Posts: 485
Drives: '09 370Z, '03 G35
Rep Power: 14421 |
Quote:
A smaller pulley on the SC means that it is spinner faster at all times, so you’ll be building boost at a lower RPM compared to a larger pulley… thus more low end torque. Theoretically this also means you have more boost at high RPM too, but the TSG Rotrex kit opts to bleed off additional boost at higher RPM and have constant boost after some set RPM. This would mostly be to protect the engine. Sent from my iPhone using Tapatalk
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2009 Sport Touring | Platinum Graphite | GTM Stage 1 Supercharger | BC BR Coilovers | Hotchkis Swaybar | Z1 FUCAs | AME TM-02 Wheels | Z1 2-piece Front Rotors | Z1 Clutch & Flywheel | Invidia Gemini Catback | GTM Resonated Test Pipes |
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03-26-2024, 01:04 AM
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#6 (permalink) |
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Base Member
Join Date: Jun 2010
Location: Australia
Posts: 138
Drives: 2011 Nissan 370Z
Rep Power: 16 |
Interesting.
I read or watched somewhere that a smaller pulley while producing more power by spinning faster is harder to spin. Similar to a higher gear on a bike. And that results in less low end torque. Is that incorrect? For example here's a source: https://www.aimsindustrial.com.au/bl...ey-speed-ratio |
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