Si to Ti, Headers, Meth
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Joined: Nov 2016
Posts: 55
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From: Los Angeles Ca
Si to Ti, Headers, Meth
Hi guys, my car is currently undergoing an upgrade from Si to Ti trim. I just have a few questions.
Current setup: V3 Si with 3.8 pulley, LT catless headers, and Meth. 610 rwhp (not sure if it is sae) and 530 pounds of torque.
1. I have read a lot about efficiency. I am not a racer (spirited driving here and there) and i will never bring my car to the track (I think). To me, I think the Si kit is perfect for my needs at the moment. Due to an unexpected event with my Si kit, I am forced or more cost effective to upgrade to a Ti trim. With my current 3.8 pulley setup, will the Ti trim be efficient or should I change to the 3.6 Pulley to make it more efficient?
2. What are pros and cons of the oil fed kit vs the self-contained v3?
3. Will I see a different set of dyno numbers with 3.8 pulley and what would be the numbers with a 3.6 pulley?
many thanks in advance for your responses
Current setup: V3 Si with 3.8 pulley, LT catless headers, and Meth. 610 rwhp (not sure if it is sae) and 530 pounds of torque.
1. I have read a lot about efficiency. I am not a racer (spirited driving here and there) and i will never bring my car to the track (I think). To me, I think the Si kit is perfect for my needs at the moment. Due to an unexpected event with my Si kit, I am forced or more cost effective to upgrade to a Ti trim. With my current 3.8 pulley setup, will the Ti trim be efficient or should I change to the 3.6 Pulley to make it more efficient?
2. What are pros and cons of the oil fed kit vs the self-contained v3?
3. Will I see a different set of dyno numbers with 3.8 pulley and what would be the numbers with a 3.6 pulley?
many thanks in advance for your responses
Last edited by jasonyyu; Sep 27, 2017 at 12:51 AM.
Drifting
Joined: Jun 2016
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From: Temecula, CA
The Ti trim will still be within its efficiency range with a 3.8. Efficiency range is based upon rpm of the blower. I would guess that you would gain about 2lbs of boost with the same size pulley going from Si to Ti trim at 20-25 rwhp gained per pound of boost. Oil fed will allow you to spin the blower harder without fear of ruining the blower.
I'm Batman..
Joined: Apr 2014
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From: Lehigh Acres FL
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The Ti trim will still be within its efficiency range with a 3.8. Efficiency range is based upon rpm of the blower. I would guess that you would gain about 2lbs of boost with the same size pulley going from Si to Ti trim at 20-25 rwhp gained per pound of boost. Oil fed will allow you to spin the blower harder without fear of ruining the blower.
