Re: When does VTEC kick in?
Anonymous <none@none.com> wrote:
> When does the Vtec kick-in on the 1.7 Civic Ex? Quick overview picture http://www.lathi.net/honda-faq/vtec.html Probably 2500 RPM. http://www.leecao.com/honda/vtec/wheresvtec.html -- --- Clarence A Dold - Hidden Valley (Lake County) CA USA 38.8-122.5 |
Re: When does VTEC kick in?
dold@WhenXdoesX.usenet.us.com wrote in message news:<bd7eh9$rf7$3@blue.rahul.net>...
> Anonymous <none@none.com> wrote: > > When does the Vtec kick-in on the 1.7 Civic Ex? > > Quick overview picture > http://www.lathi.net/honda-faq/vtec.html > > Probably 2500 RPM. > http://www.leecao.com/honda/vtec/wheresvtec.html it depends on coolant temp, oil pressure and RPM. And the ecu mapping. It never kicks in at 2500 if it does there is something wrong!! more like 5000 on the low end some of them are upward of 6500 rpm Chip |
Re: When does VTEC kick in?
Chip Stein <chip@chipanddebby.com> wrote:
> dold@WhenXdoesX.usenet.us.com wrote in message news:<bd7eh9$rf7$3@blue.rahul.net>... >> Anonymous <none@none.com> wrote: >> > When does the Vtec kick-in on the 1.7 Civic Ex? >> >> Quick overview picture >> http://www.lathi.net/honda-faq/vtec.html >> >> Probably 2500 RPM. >> http://www.leecao.com/honda/vtec/wheresvtec.html > it depends on coolant temp, oil pressure and RPM. > And the ecu mapping. It never kicks in at 2500 if it does there is > something wrong!! > more like 5000 on the low end some of them are upward of 6500 rpm > Chip That would be fairly worthless on my VTEC engine. Peak HP is at 5700. Redline is at 6000. There are different types of VTEC. The leecao page has a chart of which model gets which style. -- --- Clarence A Dold - Hidden Valley (Lake County) CA USA 38.8-122.5 |
Re: When does VTEC kick in?
<dold@WhenXdoesX.usenet.us.com> wrote in message news:bd8mbg$972$1@blue.rahul.net... > Chip Stein <chip@chipanddebby.com> wrote: > > dold@WhenXdoesX.usenet.us.com wrote in message news:<bd7eh9$rf7$3@blue.rahul.net>... > >> Anonymous <none@none.com> wrote: > >> > When does the Vtec kick-in on the 1.7 Civic Ex? > >> > >> Quick overview picture > >> http://www.lathi.net/honda-faq/vtec.html > >> > >> Probably 2500 RPM. > >> http://www.leecao.com/honda/vtec/wheresvtec.html > > > it depends on coolant temp, oil pressure and RPM. > > And the ecu mapping. It never kicks in at 2500 if it does there is > > something wrong!! > > more like 5000 on the low end some of them are upward of 6500 rpm > > Chip > > That would be fairly worthless on my VTEC engine. Peak HP is at 5700. > Redline is at 6000. There are different types of VTEC. The leecao page > has a chart of which model gets which style. Woohoo! Good to see people still looking at that VTEC page. However, those pages haven't been updated in a very long time and does not include any information on the new i-VTEC engines. But in any case, if the redline is at 6000 I would imagine the VTEC switchover point will be somewhere in the range of 4000 to 5000 RPMs. Lee Cao |
Re: When does VTEC kick in?
Steve Lee <dont@thinkso.com> wrote in
news:hi6hfv87g5893j8agl1c33irld41pf65pv@4ax.com: > My Pilot kicks in right around 4300RPM. It was confirmed when I was > watching an automobile show on TV and the Pilot was featured as a test > vehicle. These were his quotes, "The Pilot features a VTEC engine and > it kicks in nicely at 4300RPM, just as pretty much all the other > VTEC's do." > That's about where my 94 Integra GSR kicks in. Whole concept of VTEC is to have a mild cam profile for low RPM driving,and a more 'radical' cam profile for high RPM,increasing valve lift and duration for better high RPM breathing.Honda VTEC hydraulically locks the extra cam lobe lifter to the regular lifter to achieve this,as I understand it. -- Jim Yanik,NRA member remove null to contact me |
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