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The Altezza / IS200 / IS300 Forum
anyone done this mod before?
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<blockquote data-quote="chipstar" data-source="post: 2024553" data-attributes="member: 16589"><p>OK I made the translation for the first paragraph only since thats where the important stuff is.The rest i think u guys could just figure out from the pictures there.</p><p></p><p>Full time Secondary duct release</p><p> </p><p></p><p>1.Purpose of the mod?</p><p></p><p>First of all, Altezza(SXE10 version not GXE10 ) has two system suction, and the second duct opens after 4000 rpm onwards. It is fairly peaky compared with Levin. </p><p></p><p>The second suction duct is placed in the spot which seems able to suck air very well,and the purpose of the mod is to have the duct opened all the time. </p><p></p><p>If the secondary duct is full-time released the low torque problem of Altezzas during 2000~4000rpm would improved a little.The reason for the low torque feel during those rpm range would seem to be air sucking sound countermeasure caused by the secondary duct.</p><p></p><p>The mod is very cheap to do and could be done with no cost at all. Instead of just pulling out the hose for the duct it doesnt hurt to spend a little money to make a valve switch since its so easy to do.</p><p></p><p>The merit from making a manual valve switch for the secondary duct is it could be reversed back to original state anytime and also u get self satisfactory from DIYing.Also this mod is also good to kill time for people who is really free.</p></blockquote><p></p>
[QUOTE="chipstar, post: 2024553, member: 16589"] OK I made the translation for the first paragraph only since thats where the important stuff is.The rest i think u guys could just figure out from the pictures there. Full time Secondary duct release 1.Purpose of the mod? First of all, Altezza(SXE10 version not GXE10 ) has two system suction, and the second duct opens after 4000 rpm onwards. It is fairly peaky compared with Levin. The second suction duct is placed in the spot which seems able to suck air very well,and the purpose of the mod is to have the duct opened all the time. If the secondary duct is full-time released the low torque problem of Altezzas during 2000~4000rpm would improved a little.The reason for the low torque feel during those rpm range would seem to be air sucking sound countermeasure caused by the secondary duct. The mod is very cheap to do and could be done with no cost at all. Instead of just pulling out the hose for the duct it doesnt hurt to spend a little money to make a valve switch since its so easy to do. The merit from making a manual valve switch for the secondary duct is it could be reversed back to original state anytime and also u get self satisfactory from DIYing.Also this mod is also good to kill time for people who is really free. [/QUOTE]
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The Altezza / IS200 / IS300 Forum
anyone done this mod before?