Lowering VTEC
#14
It's load sensitive too. Just because your over 4k rpms doesn't mean vtec is engaged. I have my vtec at 3.8k but it doesn't engage until I'm over 45% throttle load, so no matter what RPM I'm at, if Im under 45% throttle, vtec is not engaged.
Honda put it at 6k because that is the point just above where it *should* be with the stock cat in place. With the stock cat it should be around 5.5k, but they raised it to 6k so you feel that vtec bump, which makes it feel faster, which in turn probably sold more cars.
#17
Lowering vtec switchover point without dyno test is really not good. In the stock version of s2000 the vtec should not be lowered more than 5500 rpm otherwise you will lose power
When you have modification lowering more is most of the time good but dynotest is a necessity
When you have modification lowering more is most of the time good but dynotest is a necessity
#18
It's load sensitive too. Just because your over 4k rpms doesn't mean vtec is engaged. I have my vtec at 3.8k but it doesn't engage until I'm over 45% throttle load, so no matter what RPM I'm at, if Im under 45% throttle, vtec is not engaged.
Honda put it at 6k because that is the point just above where it *should* be with the stock cat in place. With the stock cat it should be around 5.5k, but they raised it to 6k so you feel that vtec bump, which makes it feel faster, which in turn probably sold more cars.
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So they ended up lowering its performance for the vtec bump feel?
#19
#20
You get the same with a lot of turbo cars, especially diesels, it's deliberate because it makes the car feel faster than it is. Car's with smooth, linear torque curves (a la RX8), often feel 'flat' to anyone but an experienced racer/tester