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Old 03-13-2012, 08:42 PM   #22
Exage
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Quote:
Originally Posted by SkullWorks View Post
I think you missed some of the systems that came out that weren't as widely used as Vtec
I kept it basic and brief; for the sake of posting without

A) Confusing members, easy to distinguish what is VTEC and VVT. Verses something like MIVEC and Double-VANOS.

or

B) a length of off-topic discussion

You are correct. i-AVLS is similar to VTEC-E, in which number of valves actuated is decreased at low rpm. While the system is similar, its application to engine performance [fuel economy/drivability] is on a much different note.


Quote:
Originally Posted by serialk11r View Post
I assumed he was talking about the K24 Civic, because it's most fair to compare new cars afterall...the old Civic would get smoked as it does not have as great of a low end torque advantage. Well not exactly, it'd still be close.
Well you can look at it two ways. It makes sense considering sale period. When comparing engine/drivetrain I tend to to make leeway on this in favour of something more precise [Displacement, Gear Ratios etc].

I got into pissing match once that engine for engine the 2ZZ-GE shouldn't be compared to a B18C1 or B18C5, but rather a K20A2. [SarcasticClap]

Quote:
Originally Posted by Mitch View Post
The k20z3 vtec isn't that great either. They downtuned the engine just prior to the cam switchover so that it would have an artificial "kick". The sound it makes when it switches over is nice though.
It's actually better to have the switch point lower, the consequence is less kick. Power is accessible towards the end of the midrange. So I respect your opinion Mitch that it's detuned (with you owning a 8th Gen Si), however I believe it's just less abrupt then the past non cam-phasing Honda engines (B series).

I don't land on my high cam even with redline shifts because it's set [stock] at a silly 6700rpm. The tuners that use the Apexi-PFC always decrease it to 5800-6200rpm on this engine, trading the "kick" for better performance and land on upshift. It gives a hell of jolt and noise in 1st and 2nd stock though.

________________

And that's all the off topic from me today...
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