Simon

放工後上大山試車, 段段有力, 好揸好多.
不過因為無入油, 殺左一半就鳴金收兵.

古惑強

electronic
PuntoPatrick 發表於 2009-6-29 15:04

Those cheap cheap electronic one are not really that reliable, you are better off to use the factory EBV or a cheap cheap mechnical one for better reliability.

PuntoPatrick

electronic

letsrock

Adrian might be selling me his.  Will see.

古惑強

Get a simple mechanical one as a temporary measure, as all the vacuum pipe works had been put in place by the garage, albeit it was put there by mistake!  

letsrock

I need a boost gauge first.....

古惑強

我果個cheap cheap水喉掣，攪左好耐都set得吾好，早排駁番原裝個ebv，又開心番晒，其實實際上水喉掣可以超壓之外，可吾可以減lag呢？
PuntoPatrick 發表於 2009-6-29 13:01

Your cheap cheap 水喉掣 is the electronic one or the mechanical one?

PuntoPatrick

我果個cheap cheap水喉掣，攪左好耐都set得吾好，早排駁番原裝個ebv，又開心番晒，其實實際上水喉掣可以超壓之外，可吾可以減lag呢？

古惑強

水喉掣依家o野：

唔試由自可，一試傻諗o左！

古惑強

其實我乜春都唔識，本來我對機械式水喉掣頗有抗拒， 因為機械式水喉掣係完全冇晒油門角度做 modulation ，因為就算係輕腳油門，個 wastage 都係完全關到實，所有死氣係去晒推個渦輪，但原廠EBV真係年事已高柴柴地，上唔到高叭乜濟就十分冇癮，洗o左個EBV兩次好返少少但都唔係幾得，冇計之下唯有聽從臣哥轉用 cheap cheap 機械式水喉掣！嘩！ 一試難忘，現今雖然知道可以買個全新既EBV，不過個機械式水喉掣又真係幾 raw 同幾狂野，又唔係幾想轉反原裝添！

但係劈入窄彎前轉低波時要小心一點，因為渦輪已經上定晒叭，拖低波扯高轉而激發既突如其來扭力，可能會令到經驗較淺既車手有點手忙腳亂！係慌忙下惦惦個迫力就會去荔園玩咖啡杯o架喇！

Simon

嘩! 好勁呀. 不過隨之而來就係擔心. 典解會咁"標"?

今日測試, 三波5500rpm, 0.5bar. 不過好似勁過以前.
油門反應好敏感, 踩好少已經有力出.完全唔係壞事, 好處係入彎時一扭軚, 車身開始入彎的第一剎那"和油"時turbo已經介入, 好有利出彎時的開油動作.

Simon

又裝左個機械式水喉制.
好彩有力奇技術支援, 唔係真係嚇一嚇. 整車就多, 不過改車真係好少搞, 唔敢搞.
而家成架車的性格改變左, 好有力, 好肯沖.
濕地唔飛得不過道力好肯上.
我呢幾日會調啱個MAX BAR. 又同時監察個油耗.

古惑強

Mr. Crazy is different laa, his turbo is on full boost all the time, so I reckon the wastage must have suicided ages ago!

coupeelvin

Find a stock EBV to test first la.... FYI, Mr Kong has wastegate failed months ago.... replaced with wastegate from Saab (by chuen kee)

Simon

如果佢要壞...應該係點呢 ?
我好想解釋下點解我架coupe現時最多得0.8bar
假設極端例子,
如果甩喉, 即係wastegate只連接大氣壓力, 唔會開, 咁bar數應該會谷到爆錶. 現象應該同塞左喉一樣. 即係EBV長開.
如果長接通turbo加壓氣喉, 即係turbo一去到0.6bar, wastegate就會開. 即係EBV長關.

咁... 而家得果0.8bar,  即可能係
1.ebv唔順, 開唔晒, 只係開得少少, 本來想却壓, 但却唔到, 仍有壓力去推開wastegate
2.wastegate條桿頂住閂唔埋, 壓力經bypass走晒

PuntoPatrick

http://www.splparts.com/doc/tech/EBC.htm

呢個係我之前搵到有關ebc既資料

AbarthJoe

大家都係同年代快意嘛.

PuntoPatrick

睇黎coupe個pbv同punto果個一九樣...

古惑強

原厰EBV好可能已經柴柴地！

Simon

原本佢嘅工作原理係咁
如果EBV未作用時, 工作原理係,
如果EBV未作用時, turbo加壓後氣壓(B)與wastegate(A)接通, 而wastegate在turbo加壓至0.6bar時便會被推開, 代表wastegate只會最多行base boost 0.6bar, 當wastegate打開turbo便會維持在0.6bar的壓力.

而當EBV由電腦控制運作時,  turbo加壓後氣壓(B)便會與生氣喉(C)接通, 却去推動wastegate的壓力, 令wastegate去不到0.6bar, 打不開wastegate後, turbo從而可能繼續加壓.

當壓力升至電腦預設上限bar數時, EBV又會將turbo加壓後氣壓(B)與wastegate接通,打開wastegate將turbo壓力控制於指定範圍.