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#1
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m104 resonance valve in intake
I read on diesels to gain power they remove this valve.Has anyone done so for a m104?
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1999 w140, quit voting to old, and to old to fight, a god damned veteran |
#2
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i helped my friend to swap 3.2 m104 to w201, and there i didn't connect antiresonanse valve.... i don't know if the accelerations were made by it's weight, but the car was really powerful
here is some vid https://www.youtube.com/watch?v=AoL-LbFqNRE it was very low budget car, but i couldn't catch the laptop when we tuned it also in m104 3.0 24v there are strong resonanse phenomenoms, which help to fill the cylinders... it is described as passive boost called WI-BU. i fighted with strange mapsensor readings and pressure drops on fuel rail coused by map fluctuations with ori intake manifold... in kejetronic pendulum like flow meter has greater inertia, so this fluctuations don't affect it so much.... with mapsensor it is problem, but it can be easily solved |
#3
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I think this valve limits noise from intake.Diesel owners remove and get more power.I know that a 99 intergra you replace intake manifold with aftermarket.Ours is on top of intake secured by allen bolts.
Just found part it called a air speed idle valve,guess you can't mess with it.Looks so restrictive
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1999 w140, quit voting to old, and to old to fight, a god damned veteran Last edited by oldsinner111; 04-05-2012 at 03:13 AM. |
#4
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That's not there to limit noise, it is there to boost low RPM torque when it is in one position and boost top end power when it is in the other position. Your big heavy W140 needs that low end torque boost. You can't be hitting that N2O button all of the time to make up for the loss in low end torque that you will surely suffer if you mess with that valve's operation. That will quickly get expensive. Just leave that valve alone. Honestly, I've been whining that our M119s don't have those, and here you want to disable yours!
Regards, Eric
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89 300E "Benzer1" 15.924 Uncorrected 93 400E "Benzer3" 14.200 U.C. 95 E420 "Benzer4" 92 300E "Benzer5" 16.299 U.C. Future turbo CNG 87 300D "Benzer7" 87 300D "Benzer8" 87 300D "Benzer9" 87 300D/70 AMC Javelin "Sidewinder-Benzer" 87 300TD "Benzer11" 06 E320 CDI "Benzer12" 05 E320 CDI "Benzer12A" 71 AMC Javelin AMX 401 "Sidewinder" 74 AMC Hornet 401 "C.K.10" 13.63 U.C. 74 Bricklin SV1 "Presto" AMC 360 pwrd. |
#5
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Thanks Eric always looking to improve performance. PS. My w140 is a small compact to me,compared to cars from long ago.
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1999 w140, quit voting to old, and to old to fight, a god damned veteran |
#6
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When comparing apples to apples, 2 valve heads tend to outflow 4 valve heads until about 4000 RPM. The resonance valve helps level the playing field for the 4 valve head by better matching the intake resonance frequency to the engine RPM. By comparison a static intake will only have one RPM range in which the resonance will help move air into the cyl.
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90 300TE 4-M Turbo 103, T3/T04E 50 trim T04B cover .60 AR Stage 3 turbine .63 AR A2W I/C, 40 LB/HR MS2E, 60-2 Direct Coil Control 3" Exh, AEM W/B O2 Underdrive Alt. and P/S Pulleys, Vented Rear Discs, .034 Booster. 3.07 diffs 1st Gear Start 90 300CE 104.980 Milled & ported head, 10.3:1 compression 197° intake cam w/20° advancer Tuned CIS ECU 4° ignition advance PCS TCM2000, built 722.6 600W networked suction fan Sportline sway bars V8 rear subframe, Quaife ATB 3.06 diff |
#7
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OK learned something about after market Integra intake.It flows better at top end,than stock.
So I like my grunt at low end to.
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1999 w140, quit voting to old, and to old to fight, a god damned veteran |
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