I think everyone realizes that (I think!!!) even if they don't want to. I'm just trying to defend the new school V8s (better)from the old school *ack* ones. I also have to mention old school v8s suck so much gas cuz they were so ineffiecient , threfore you had to press the gas harder to acheive the same performance of a more efficient engine! Also a turbo 4 should waste as much gas as an NA v8 making the same power.
everyone is like yeah!!! I just smoked a v8 camaro or a mustang. If v8s are so crappy why do you spend so much time and energy and are so happy when you beat one. Why??
American engines suck in technology. Anyone wonder why? You see japan engines need all that tech, because of the car makers power limiting agreement. 300 hp max ( give or take)is the limit a japanese motor can put out stock in japan. So if they made big engines// to be continued...........
No Replacement for Displacement
D-UNIT wrote: You see japan engines need all that tech, because of the car makers power limiting agreement.
The gentlemen's agreement was never formal. The objective is to prevent a horsepower war (like what is happening in the US now) between manufacturers.
But the main reason why Japanese and European engines are usually small and rev-happy is because outside the American market, ie in pretty much every other country in the world, vehicle tax is based on displacement.
RobDET wrote:VG30DETT running 15 flat??!! in an S13
NO NO my friend the VG is in a 510 ( not alive yet), and the 15.0 is with my KA!!:icesangel
Ok now I can finish! So from back in the day it was really not practical to slap a huge engine in a japan car (stock) becauae they are real small. but in America our cars were huge so bigger engine obviosly. what I'm trying to say is that japanese (euro) tech is so great cuz' they had so much time to develop their small disp engines into v8 killers. it was all they had and all they could fit. In america we always had big low tech v8s. Noboby cared about upping the tech in them cuz they were always powerful enough to push the big cars. With plenty of gas goin round , why mess with a good enough thing. Tech was not an issue cause we had disp to cover the push rods. Now that is not the case. Nobody wants a big block anymore they want efficiecy they want fuel economy they want power ( easy to have all of that in a smaller car- notice a trend?). A low tech anything doesn't give that but a japanese I4 does. The rb20 came out in 86. In 86' here we just started to see pushrod FI turbo econo box POS's(135hp). The japanese were already 10up on us in tech. Oh wait....
side note - I'd love to see an SR20 in a 63' Impala.
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s13sr20chris
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tl1000sga
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J-Spec Tuner wrote:there is some other thread with a turbo hayabusa, 525hp out of what, like 1 or 1.3 liters? Thats technology replacing displacement where displacement cannot be added.
Yes, that is a very impressive bike, but I'd be willing to bet that bike is not still harboring it's stock dispalcement of 1.3. Hell, I used to have a 'busa that was stroked and bored to 1466 cc, so displacement can deffinately be added to them. I don't know of any engine (factory) that couldn't benefit from added displacement, or technology for that matter.:freak
tl1000sga wrote:Hell, I used to have a 'busa that was stroked and bored to 1466 cc, so displacement can deffinately be added to them. I don't know of any engine (factory) that couldn't benefit from added displacement, or technology for that matter.:freak
Actually you bring up a good point - All displacement is not created equal. Displacement resulting from added bore generally bumps both power and torque, whereas displacement from stroking will create greater torque, but will not significantly benefit power because of its impact on maximum engine speed.
This thread has generated too much good discussion to let die.
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s13sr20chris
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MrFox wrote:Actually you bring up a good point - All displacement is not created equal. Displacement resulting from added bore generally bumps both power and torque, whereas displacement from stroking will create greater torque, but will not significantly benefit power because of its impact on maximum engine speed.
This thread has generated too much good discussion to let die.
big bore also means bigger valves are possible and less shrouding occurs.
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tl1000sga
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MrFox wrote:Actually you bring up a good point - All displacement is not created equal. Displacement resulting from added bore generally bumps both power and torque, whereas displacement from stroking will create greater torque, but will not significantly benefit power because of its impact on maximum engine speed.
This thread has generated too much good discussion to let die.
I never actually considered that before. And yes, this has been a great thread, I have learned a lot.
