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InitialZ

[02] QUARANTINED
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Posts posted by InitialZ

  1. any engine with improved intake or exhaust will definitely add hp.. that's why pro drag racers doesn't use any intake filter to maximize air flow and maximizing the engine's power.. but if you're planning not to install any filter at all, make sure you don't drive it off road and have a regular change oil to prevent dirt to pile up in your engine that may wear your internals..

     

     

     

     

    any car that has improved acceleration and perfomance without loosing some weight or higher octane gasoline definitely has an increase in power...

     

     

     

    yep sounds really good, pero the performance their saying is up to 5%, so pwede din lower, pero definitely there's some improvements, depende din sa engine design.. if you install a bigger tube intake with cone type filter, I think that an engine in good shape and properly tuned could give you 5% more power and better fuel consumption.. less restriction means better air flow.. better air flow means more to burn, more combustion means more power!

     

    not necessarily, you might actually lose power sa pag gamit ng mas malaking intake tube. sungaw galore! i have some friends na nag lose power sa dyno using a fatboy tube kaya nagpafabricate sila ng intake tube na may mas maliit na diameter. btw di lahat ng engine pwede i-full exhaust lalo na yung mga low displacement na engines, back pressure will be lost

  2. VTEC is more hype than substance.

     

    VTEC is simply a two-step valve timing system. One for low revs to give more torque and one for high reves to deliver more horsepower. If you drive a VTEC engine you will notice that it has a 'flat-spot at about 3,500 to 4,500 rpm when the system transitions from one setting to the other. I don't know if there is a VTEC system that now works on both intake and exhaust sides but most of the VTEC engines I have seen only actuate the intake valves.

     

    Compare this to a continuously variable valve timing system which in theory is expected to set valve timing, duration and dwell at the optimum settings based on what the ECUthinks the driver wants to do with the engine. Toyota's VVTi is an example but an even better one would be BMWs VANOS or the Double VANOS on the M models.

     

    Although much can be said about the high end refinement of high rpm screaming engines, they generally do not last all that long. In a race application this is okay. But for a daily driver? Pass. Give me an American SUV with an under-stressed, large displacement engine anytime. For the weekends, well, that is why some of us like to keep an Evo or STi in the garage.

     

    yup meron.

     

    DOHC - both intake and exhaust

    SOHC - intake lang

     

    the type R variants are made to go fast out of the box same with the SiR models like EG6,EF9 and our local SiR. balanced engine and suspension components.

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