Quote:
Originally posted by flylwsi
f20c,
i just reread that..
what bout vw?
they have small disp motors, and have very close tq and hp numbers... the redline isnt as high,
so i guess the honda "soft cam" kills tq for mileage until vtec kicks in... so i guess i can see it, but not when you can get similar hp and tq outta the vw engines, or alot of other 4 cyl motors...
for example, the focus svt, if it arrives, has 170hp and 145tq, which is alot closer than a b16a... and even the h22 has 200hp w/170ish tq...
so why the looooooow tq on the b16 and the s2k? i dont get why, but i guess that is how they made it... oh well...
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Which VW engine are you refering to? 1.8T is turbocharged therefore it's packing more air that would normally go into an engine. When you feed engine more air/oxygen it produces more power.
VTEC is working in low rpm as it increase torque. Without 1st Stage VTEC Honda engine would not be driveable. Before 3rd Stage VTEC kicks in Honda is using VTEC for MPG and Torque purpose.
Basically engines can be tuned for different purpose. Luxury car engine are tuned for smooth delivery. Performance car engine for performance etc.
There is 3 ways to make power.
1. Force induction=Packing more air per density into engine.
2. Displacement=More cubic inch for engine to work with.
3. Raise Redline=Make engine lighter and allow it to rev higher
B16, B18 and F20C all fall into the third category.
Then you have to consider all three engine have relative small displacement. Displacement are in direct relationship with torque. The more displacement you have the more torque you obtain. With the third category you can only obtain either high ratings of hp or torque not both. You can achieve both but it will be too expensive to produce.
Focus SVT will extract 170hp and 145tq from 2.0L Zetec engine. F20C is much more tuned engine therefore with the same 2.0L displacement it extracts 240hp and 153tq. JDM spec S2000 produce 250hp and 163tq from same 2.0L! USDM S2000 is only producing 3 tq less than H22A. Prelude has the advantage of having .2 more displacement as well.