Another souped up intake manifold option
#16
With those changes it should be a solid manifold and work properly. Will it make power? I doubt it. Maybe on a car with headers and cams that revs to 7500.
Before you test the manifold make sure those fittings are tight, if not they will suck into the motor and then BOOM.
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SDGenius (11-09-2011)
#22
ill Sedan
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Z1Motorsports (11-11-2011)
#24
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Will be interested to see the results. Looks like it'll be awesome! Sexyrob did a similar NA test but I don't think he was able to expand it to this degree. Is there a particular way that a definitive "better" plenum can be established in a controlled circumstance? Are A/F and boost going to be set at one setting and left? Are each going to be tuned exquisitely to see what generates max performance?
Sorry for the noob questions- just wondering how you put sufficient controls in place to ensure that one plenum doesn't have an advantage over the others- other than in its inherent design of course.
Sorry for the noob questions- just wondering how you put sufficient controls in place to ensure that one plenum doesn't have an advantage over the others- other than in its inherent design of course.
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Z1Motorsports (11-19-2011)
#27
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Will be interested to see the results. Looks like it'll be awesome! Sexyrob did a similar NA test but I don't think he was able to expand it to this degree. Is there a particular way that a definitive "better" plenum can be established in a controlled circumstance? Are A/F and boost going to be set at one setting and left? Are each going to be tuned exquisitely to see what generates max performance?
Sorry for the noob questions- just wondering how you put sufficient controls in place to ensure that one plenum doesn't have an advantage over the others- other than in its inherent design of course.
Sorry for the noob questions- just wondering how you put sufficient controls in place to ensure that one plenum doesn't have an advantage over the others- other than in its inherent design of course.
This car was on stock tune, we did log AFR on the dyno so you can see how each plenum affected it, surprisingly it stayed pretty constant with all the plenums.
When we do FI we will log Boost and AFR, I've done some testing on my car in the past (since I own the Cos and Kinetix) and can say first hand the plenum affect spool slightly but the change only modifed my AFR ~.2:1 if that.
This is a 04 DE, ~100k miles. Z1 Intake package, Test pipes, Nismo Exhaust, Z1 Lightweight Flywheel/Clutch, and Quaife LSD.
Last edited by Z1Motorsports; 11-19-2011 at 05:34 AM.
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SDGenius (11-19-2011)
#28
[B]The way we found max power for each setup was to let the car cool completely down (which switching the plenum), and idle for about 30 seconds and did pulls back to back until it lost power, some setups took as many as 7 pulls to max, while others were within +/-1rwhp on 5 pulls.
trust that I ask, not to disprove your test results - just as a way to understand the methodology.
#29
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-Rob
#30
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