มาแล้วครับ Email ของ MrWong
1. ยืนยันว่ามี 3 cam lobes ฝั่ง intake และมี 1 camlobe ฝั่ง exhaust (อืม...)
2. รอบที่เปลี่ยนแคม คุณวองไม่แน่ใจ
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When you write ES2.0, you mean the ET1 Civic 2.0 i-VTEC, i.e. the previous 7th generation Civic right ? I understand your questions and in fact a few people have pointed the same two questions to me before. At the moment, I still think that the K20A3 on the Civic uses 3 cam lobes on the intake side but only 1 camlobe on the exhaust side. Unfortunately I am unable to confirm if this is correct or not. The best way is actually to open up the engine cover and to take a look at the cam/valve train. Have you done that before ?
However, I am not sure if my infor on the 4,800rpm VTEC change is correct or not. You say that some Thai enthusiasts have checked the VTEC signal and have found that the changeover is actually at 2,200rpm. If that is the case, probably they are correct and my article is wrong. Unfortunately I have not been able to confirm this.
Thank you very much for your support of TOVA. I look forward to your continued support. Thanks for your email.
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I have questions that it would be very kind of you to have attention to this email and kindly reply since we, Thai honda fans, need your info a lot.
I'm a Thai civic ES 2.0 i-vtec user since mid of 2004. Your article inspired me to buy this car. In fact, firstly, I really need to by 1.7 vtec MT because I was previously very disappointed in Honda AT.
Anyhow since I've driven this car, I try to achieve the test time 0-100 kmph but I never did quicker than 10sec. Forget about it, may be I do not have a good technique enough.
Here are my queries:
In your article http://asia.vtec.net/Reviews/20CivicRev/index.html
?Is it true that k20a3 in ES2.0 :
1. Have the 3 rocker-camlobe implementation.
We have realized from some web that k20a3 in integra type S or civic Si use the 2 rocker-camlobe implementation for fuel-economic purpose and this version of vtec is not exact i-vtec as same as k20a2 in integra type-R.
I refer to this web : http://www.theksource.com/news/04/k-series-vtec-breakdown
2. The Vtec change over point is at 4,800 rpm
From the same above web, we could see that vtec change over point is at 2,200 rpm and will use this high-cam up to the red-line.
Also in Honda.co.jp show that for k20a in integra iS, vtec change point is at 2,200 rpm.
We, some Thai enthusiasts, have checked with the vtec signal and he insist that the high-cam is engaged at 2,200 rpm at any case.
Please reply and have some comment because I'm very eagy to know and we, Thai, Honda fan, will have the right info about it.
Always be your reader coz your articles are so intersting.
4 ธ.ค. 49 08:56:24