A Quick and easy post.....
RPMs & V-TEC!
THE
Replacement
FOR
Displacesment!
posted by Mike @ 3:20 PM
<="http://honda-vtech.blogspot.com/"> A home for my car thoughts
Sunday, March 19, 2006
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25 Comments:
wow, that was deeeeepppp. what does rounds per minute have to do with anything?
I didn't get that so i assume it had something to do with cars?
ummmmmmmm...
yea,i am with sam.
It's a long story and is a big argument between old school muscle car fans and modern import tuners. Maybe I should make a post to explain it all.
maybe you should.
Hmm...well...as soon as they find a cute little v-tech that can fry 14-inch rubber with just a little stab at the go-fast pedal while it's idling, there really isn't any replacement for displacement. :) Think cubic inches,,,,,like 572!!! yummy,,,620hp and over 600 ft-lbs of torque. sigh. Ask your dad about the pleasures of genuine torque:) I do admit that honda (as well as most other manufacturers (except Russian lol) have done well to extract the maximume torque available from small engines, the old adage still holds true, "there is no replacement for displacement"
Or: "no substitute for cubic inches." How 'bout that? Heh, heh.
here we go again....
That made no sense. Please explain?
um... yah - i'm even more confused now. yep yep.. i have noooo idee what was just said :)
WOW, that was all WAY over my head.
don't ask to have it explained,do you have any idea how long that might take?
In response to what some said, rpm's are indeed the replacement for displacement in that we Import Tuners can acheive the same power with smaller displacement as you do with your muscel cars. Although in thery, bigger engine,more power, we can by reving them higher use a smaller engine and improve our power to weight ratio.
(By the way, Nopi got 1200 hp out of a 4 cyl.)
plus, we'll probably need the explanation explained.
Yah... I'll agree with you on that one Kayla.
1200 hp out of a 4 cylinder hm? Well, a v8 obviously has twice as many cylinders, and some of those are over 7,000 hp now. How about those cubic inches!!:) Hp theory.......yes, you can in fact get amazing amounts of powere from a small engine, but only when we are talking about hp. Torque on the other hand is what actually is more important to a cars acceleration characteristics. When a small engine is making big power, it is making hp in a very small rpm band something like 5,500 to 7,500 rpm with torque in the same bandwidth. (about) A large cubed engine will be making very significant power starting at about 2,000 rpm and carries it through to 7,000, without having to put alot of money into the reciprocating assembly. But the torque numbers are what makes a large cu inch engine unbeatable. Just-off-idle torque is enough to spin just about any street tires you want to throw at it. It's usable power band is three times the size of that of a smaller engine, with more torque, and you can even give up some hp to the smaller engine if you want at that point. In summary, cubic inches equals
1. cheaper off the shelf parts
because of less stress and heat.
2. More torque. Any racer will
gladly give up hp for torque.
3. Larger power band, making it
easier to drive fast since u
have to shift far less.
4. No turbo lag.....I don't like
waiting for my power:).
5. Way more gallons per mile!! You
can't get something for nothing
and hp to hp a small engine will
eat a large one in mileage.
6. A heavier front-end, unless you
are rich enough to buy all
aluminum...yike$$$$$.
ALLLL RIGHTY THEN>>>>your turn.:)
WOW dad that was deep :)
that was your dad!
the one bad trans am kinda gave it away eh?
i had no clue,i only know it now because of what sam said.
new post
Thats why i said it, because i didn't think anyone would get that.
thanks sam:P
Obviously we won't agree on this, And you are correct on many points. Yet, I feel the need to correct you on a couple of points.
Point 2, In drag racing yes, in autocross the bigger cubic "'s engines weight too much
Point 3, Who minds a few extra shifts? the difference in amount of shifting isn't that great. Because they rev so high your simply shifting at a higher RPM, not necessarily that much more often.
Point 4, if you get a turbo with a small enough trim, turbo lag is next to nothing.
Point 5, A high powered 4cyl. will have better gas milage than even a V8 of similar power.
Point 6, Engines pretty much come aluminum stock, so thats not really a issue.
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