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09-16-2016, 12:54 PM | #19 | |
Pumpman
Drives: 2019 Kia Soul EV Base Join Date: Dec 2014
Location: Langley, BC
Posts: 434
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Quote:
You are correct in saying that the theoretical amount of air that can be drawn in the engine is 100%. But, that's only THEORETICAL! In reality it's probably more along the lines of 80%-85%, but that's besides the point. On a naturally aspirated engine, with a well designed induction system, you can definitly break that 100% mark without forced induction, using a process called pressure wave tuning. Definitly look it up if you don't believe me. I'm not making this up.
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"I would rather loose by a mile in a car I built myself, then win by an inch in a car that was built for me." - Moog |
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09-16-2016, 12:59 PM | #20 |
Given that one of the first things people do to improve performance on just about any car is intake/exhaust system to let the car "breathe", gaining power from it makes sense to me.
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09-16-2016, 07:47 PM | #21 | |
Drives: 2008 Red Toyota Yaris Join Date: Mar 2011
Location: MN
Posts: 76
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Quote:
Don't get me wrong, a well designed intake/exhaust setup will increase power. But blindly adding parts because everyone else does is stupid. |
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09-16-2016, 07:52 PM | #22 | |
Drives: 2008 Red Toyota Yaris Join Date: Mar 2011
Location: MN
Posts: 76
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Quote:
You must also skipped over the part where I said "tuning for a certain RPM" even with pressure wave tuning it is only tuned for a specific RPM that is why there are different length headers which move the powerband up or down depending on the design. The engine itself can't achieve 100% VE at all RPMs, it can be considered a narrow powerband when compared to a FI engine where a compressor is used to force air in and increase VE of the cylinders. |
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09-17-2016, 01:15 PM | #23 |
Drives: Yaris '07 Join Date: Jan 2016
Location: Montreal, canada
Posts: 15
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How's the power gain vs gas efficiency ?
Envoyé de mon iPhone en utilisant Tapatalk |
09-18-2016, 01:15 PM | #24 |
09-18-2016, 01:43 PM | #25 | |
Drives: 2012 Toyota Yaris Sedan (Vios) Join Date: Dec 2015
Location: Thailand
Posts: 291
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Quote:
if you live in a hot ass country like me(40c with 100% humidity)..sri or cai will be same as drop in with slight gain...i really recommand sri or cai in cool country... Sent from my SM-J700F using Tapatalk
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Brain: ATD E85 Timing Advance ECU Engine: 1JZ Injectors, Header, Center Pipe, K&N Drop In, E85 Injector Converter Suspension: Hankook Tires, Performance OEM replacement Shocks & Springs F: 1.5 B: 1.4, Mu Spec brake pads, Front tower & Rear sway bars, Rays nut & lock Electric: Volt Stablizer & Multi gauge obd2 Cosmetic: Toyota red emblem |
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09-18-2016, 01:55 PM | #26 |
09-18-2016, 01:59 PM | #27 | |
Drives: 2012 Toyota Yaris Sedan (Vios) Join Date: Dec 2015
Location: Thailand
Posts: 291
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Quote:
Sent from my SM-J700F using Tapatalk
__________________
Brain: ATD E85 Timing Advance ECU Engine: 1JZ Injectors, Header, Center Pipe, K&N Drop In, E85 Injector Converter Suspension: Hankook Tires, Performance OEM replacement Shocks & Springs F: 1.5 B: 1.4, Mu Spec brake pads, Front tower & Rear sway bars, Rays nut & lock Electric: Volt Stablizer & Multi gauge obd2 Cosmetic: Toyota red emblem |
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