Teddi Neutral Newbie April 19, 2007 Share April 19, 2007 VTEC- Good at high RPM VVTI- Good at low to mid RPM ↡ Advertisement Link to post Share on other sites More sharing options...
Chemz Clutched April 19, 2007 Share April 19, 2007 i mean if both engines are of the same cc, whichever gives a higher bhp output will be my choice lor. however i still prefer the v6 vvti from my rx300 more than the ivtec from the dc5. the sound and power of the v6 still gives more grunt. Link to post Share on other sites More sharing options...
Falc 3rd Gear April 19, 2007 Share April 19, 2007 this has been discussed till death.... the old skool VTEC is more akin to VVTL-i though... do a search and start reading! Aiyo, old school vtec only has variable lift and using cam changing mechanism .... that's not akin to vvtli leh, as vvtli has both variable lift and timing using cam changing AND cam phasing. Old school vtec is more akin to Nissan VVL. Perhaps the discussion is not exhaustive yet. Link to post Share on other sites More sharing options...
Falc 3rd Gear April 19, 2007 Share April 19, 2007 no war lah just want to know members thoughts you know that there are alot of information from members that are not available in brochure and SE hope to get valuable in put No need to ask around the forum lah. More info on the web, at least read the below link first. http://www.autozine.org/technical_school/tech_index.html Link to post Share on other sites More sharing options...
Nine_eleven 2nd Gear April 19, 2007 Share April 19, 2007 it can never be exhaustive because technology will always move forwards... and we'll still be talking about it 5 years from now... Link to post Share on other sites More sharing options...
Nine_eleven 2nd Gear April 19, 2007 Share April 19, 2007 but after their long history ..... we must have come to a final conclusion ... right or is there any new development in VTEC and VVTI there is no final conclusion... it's always a work in progress... VTEC got their I-VTEC, and A-VTEC... VVT-i got dual VVT-i now on both the exhaust and intake valves... Link to post Share on other sites More sharing options...
Dodobird Neutral Newbie April 19, 2007 Share April 19, 2007 so which 1 better? i only know the higher spec sillycar got vvtl-i Link to post Share on other sites More sharing options...
Quantum 5th Gear April 19, 2007 Share April 19, 2007 (edited) to similar or different technology to give us an edge on the road .,.... or car companies ..... pulling a fast one on us.... different technology to achive same purpose VTEC: low speed fuel efficient, high speed power efficient VVTi: high torque low FC Edited April 19, 2007 by Quantum Link to post Share on other sites More sharing options...
Falc 3rd Gear April 19, 2007 Share April 19, 2007 That's true. But it seems like many have a filmsy grasp of the fundamental of variable valve tech. So 5 years later still talking about the same old thing, not the new tech. Link to post Share on other sites More sharing options...
Thermodynamics Neutral Newbie April 19, 2007 Share April 19, 2007 i think the members argue since MCF had started its first day until now...... never ending war... this is worse than the Cold War. you will have whole army of honda die hards coming in again to praise VTEC... i'm one of them.... but i dun wan to say too much... let other ppl do the talking and i will sit back and watch the fun.... I will fire the first shot. Once VTEK kui, WeeWeeTee Ai smell smoke and eat dust. Link to post Share on other sites More sharing options...
Falc 3rd Gear April 19, 2007 Share April 19, 2007 vvtli is similar to ivtec found in the R. Your question is answered in the link i posted earlier. BUT if you are asking which one is more powerful as a single criteria, then i say neither. These technologies exist to compromise longevity, drivability at low rev, and high power at high rev. So if one hack care drivability with a single mind on power, like race cars, then there is no need for cam changing and cam phasing right? So vtec or vvtli are redundant there! lol Link to post Share on other sites More sharing options...
Nine_eleven 2nd Gear April 19, 2007 Share April 19, 2007 tats true... newbies will come in and ask (present threaders excluded) and oldies will not bother to answer.... so left with another heated thread in 5 years time about Z-VTEC and VVTi-10! hahahah.... Link to post Share on other sites More sharing options...
Turbine Neutral Newbie April 19, 2007 Share April 19, 2007 This issue have been discussed alot of times already, that is why most of them was bored to explian over and over agian. I would suggest that you do a reading on Vtec first, as Vtec have various version. Etc.. With high lift and without. Which Honda is fitted with High Lift or not. Nowsadays only Type-R have the High-Lift Vtec, which is the crazy horsepower version you see in EG6/9 EK4/9 etc.... VVTI is more simpler, they differential clearly. VVT-I and VVTL-I, VVTL-I is the high lift cam version. Please do a search in the forum, it have alot more info to read on. Link to post Share on other sites More sharing options...
Watwheels Supersonic April 19, 2007 Share April 19, 2007 Look no further...my right leg is the BEST! Link to post Share on other sites More sharing options...
Relagsingh 4th Gear April 19, 2007 Share April 19, 2007 so which 1 better? i only know the higher spec sillycar got vvtl-i that one quite fast you know? aiyah, still lose to your vtec lah. Link to post Share on other sites More sharing options...
Quantum 5th Gear April 19, 2007 Share April 19, 2007 to s imilar or different technology to give us an edge on the road .,.... or car companies ..... pulling a fast one on us.... IMHO, if power is not your top option, VVTi is better Link to post Share on other sites More sharing options...
Turbonetics 2nd Gear April 19, 2007 Share April 19, 2007 i think the members argue since MCF had started its first day until now...... never ending war... this is worse than the Cold War. you will have whole army of honda die hards coming in again to praise VTEC... i'm one of them.... but i dun wan to say too much... let other ppl do the talking and i will sit back and watch the fun.... we shall watch the process of this thread will go to where. Link to post Share on other sites More sharing options...
Ls430 Clutched April 19, 2007 Author Share April 19, 2007 thank will do ↡ Advertisement Link to post Share on other sites More sharing options...
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