04-26-2012, 01:44 PM | #71 |
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Ahh, didn't realize they lowered the redline after 07. I have an 07 STI and it definitely hits 7K.
EDIT: My personal STI. [ame="http://www.youtube.com/watch?v=6w05XTOsp9Y"]MadDad Ultra Boost Gauge - YouTube[/ame] |
04-26-2012, 01:48 PM | #72 |
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Thanks for the correction. But this proves more of my point. Getting more hp/tq = loosing more redline. Specially it's a same engine & to get extra 5hp lost 400rpm... yeah not for me
Yeah, I thought they had same redline as well as new STI, but o'well |
04-26-2012, 01:54 PM | #73 | |
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??? Care to explain. Please don't compare the EJ257 to the FA20, two totally different engines, N/A vs Turbo... Also the change in hp ratings from the 04-07 to 08+ STi engines were due to new SAE standards. The lower redline is easily removed via a tune in the 08+ STi, however if you know STi engines w/ factory turbo, you know its almost pointless spinning up to 7k rpm anyways. I think Draco-REX is saying that a 2.5 N/A motor with 7k redline would be more favorable due to increased tq output, even if they kept the same hp targets of around 200hp. |
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04-26-2012, 02:01 PM | #74 | |
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Essentially, since the peak torque is below 7K and peak HP is pretty much at 7K in the FA20, I don't believe adding .5L to the displacement would hurt anything *if* it cost 400rpm. We're in the realm of the theoretical, anything is speculation at this point. I even wouldn't be surprised if the "STI" version ends up n/a 2.5L. But we'll see. No one's even cracked the ECU yet, so we don't know if there's any potential left in the FA20. There are a lot of rumors..... |
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04-26-2012, 02:03 PM | #75 |
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You don't have to compare it to the FA20, you can also compare it to the EJ207 they have in the JDM STI. I would rather have the JDM 2.0L STI engine with 8500RPM redline than the 2.5L USDM one with a 7000RPM redline. And in the same vain, I would rather have the STI version of the BRZ keep the FA20 and increase the redline to 8500 than go with a 2.5L FA25 and lower the redline. Guess it all comes down to personal preferenece but I'm glad they kept the engine 2.0L and high revving.
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04-26-2012, 02:15 PM | #76 | |
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04-26-2012, 02:16 PM | #77 | ||
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Agreed-It really is too early to speculate on the STI engine. If the FA20 is a 8500rpm monster de-tuned for base BRZ/GT-86/FR-S duties, then I could see toyota/subaru going with the high-output version of the same engine to save $$$.. On the other hand, seems like there is a ton of customer demand for some sort of forced induction. Seeing as subaru has confirmed that the next gen WRX will have a turbocharged version of the FA20, it would also make sense for subaru to dump this engine in the "STI" version of the BRZ... Quote:
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04-26-2012, 02:17 PM | #78 |
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Awesome... 1st thing people will try to eliminate is that dip in the torque-curve I bet.
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04-26-2012, 02:21 PM | #79 |
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That won't be in my mods list. First thing mod I'll be doing will be oil catch tank. If you gonna track it, autox'ing it, driftin' it, or any high lateral G is happening, I would recommend oil catch tank.
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04-26-2012, 02:27 PM | #80 | |
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the engine actually doesnt make 151 lb-ft its more around 169lb-ft so really the FA 20 is lacking 11lb-ft off the Porsche engine and its .5L smaller 143 wheel lb-ft ~ 169 crank lb-ft
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04-26-2012, 04:16 PM | #81 |
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I do want the engine logged. Rumors abound and some are interesting in the extreme. One being that the FA20 is detuned from peak performance to meet emissions and durability standards. Another that I've heard is that the reason the torque curve nosedives at the end is because the throttle plate closes. It's even possible that the two are interrelated. We shall see.
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04-26-2012, 05:26 PM | #82 | |
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04-26-2012, 05:54 PM | #83 | |
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04-26-2012, 06:14 PM | #84 | |
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Then you have those saying "off-boost"/"lag" kills. But when confronted about this car's power, "just stay in the revs!". Double standards. |
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