03-12-2014, 01:30 PM | #29 |
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lol, that would be extremely shady even for Crawford.
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03-12-2014, 01:39 PM | #30 |
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When I hear "power block" and "instant HP", I can't help but think of those JDM grounding kits from 10-15 years ago.
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03-12-2014, 01:40 PM | #31 |
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The Following User Says Thank You to Thorpedo For This Useful Post: | SirBrass (03-12-2014) |
03-12-2014, 01:42 PM | #33 |
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I'm down the road from Crawford, maybe I should stop by....
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03-12-2014, 01:49 PM | #34 |
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After seeing all you guys flame them.... geeeeeeeeeze
anyways.. clearly you can see this is an engine dyno and not a rolling dyno by the numbers... i have faith in them if they are taking the tuning this far. how many tuners have an engine dyno on hand to create parts? Those things cost a lot of $$$. So before you bash, I would wait to see what the whole package is
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03-12-2014, 02:03 PM | #35 | |
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Quote:
Reminds me that I saw a show called Performance TV on Saturday where they let some guy from some crappy company in another country zip tie some power straightener type things on the battery cables and plug wires and let him go on for a whole segment about how much power and fuel economy they would make.
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03-12-2014, 02:21 PM | #36 |
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Somewhere it was stated they drove around for a week with the mod then dyno'd it. So it would give the ECU time to learn out any sudden changes that would affect the AFR. At least to what is in range or the fuel trim authority.
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03-12-2014, 04:46 PM | #37 |
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For some odd reason, I always assumed Crawford was a really well known and trusted tuning company that was on par with Perrin in terms of established credibility with Subaru motors etc..
Whats with the shit talking? Also Subbed curious to see what this is |
03-12-2014, 05:01 PM | #38 |
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'increases volumetric efficiency' and 'requires no tuning' are inherently incompatible statements.
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03-12-2014, 05:19 PM | #39 | |
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Quote:
So, relying on autotune to fix the problem is just a bad, bad, bad idea all around. You fix the IAMs at 1, THEN dyno with the mods and see where fine knock learning, IAMs, etc go from there... fix, and repeat till IAMs, etc. show there's no knock under the conditions you're testing.
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03-12-2014, 05:29 PM | #40 |
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^ he's right. calling it 'autotune' to begin with is misleading. it's not tuning anything. it's trying to save it's own life. it cares nothing for optimization.
one could argue that fuel trims are fine because once they stabilize the AFR is fine. it's simply not true, especially on this car with it's two completely independent, interoperating fueling systems (port and di). just look at some of the guys running OFT on e85. sure their trims 'learned' over time, but they still have wildly variable AFR every time the go into open loop. i've seen logs of the OTS e85 map with guys running 10.x:1 on e85. certainly not a good way to make power. |
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03-12-2014, 05:30 PM | #41 |
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A 23 piece set... Nice nice....But will they throw in a ship in a bottle? |
03-12-2014, 05:42 PM | #42 | |
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Quote:
ECU autotrimming (better than "autotune"?) is good for tuning on this car b/c it IS a safety net that allows a tuner to make a bit of a mistake, see the system correcting to save itself, and then he can correct for it on subsequent runs without damaging the engine. But using it like a crutch is a good way to not make power correctly, or even lose power, or to make sure any "gains" seen on the dyno simply don't last very long as the ecu pulls timing out again.
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billet, crawford, magic blocks |
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