vtec

tbeers · 05-25-2007, 12:13 PM

is the vtec even there on a r18 i cant feel it or hear it ,my friends accord vtec is loud as hell honda should have just put the b18 in the ex what u guys think

xSi · 05-25-2007, 12:17 PM

yeah or a k20 the vtec in the r18 is like from 2500 to 3500 i think correct me if im wrong but its not used for much power but economical use

tbeers · 05-25-2007, 12:24 PM

what about a vtec controller

arisenfury · 05-25-2007, 12:24 PM

Get an Si.

tbeers · 05-25-2007, 12:26 PM

dont want an si want to build my own power + i couldnt get approved for the si

arisenfury · 05-25-2007, 12:31 PM

Well you can't expect much if you get any R18 powered Civic, it has vtec for fuel economy. Vtec on the R18 just retards the profiles of the cam up until about 3500 or so in which it just lets the engine run regular.

tbeers · 05-25-2007, 12:37 PM

found a turbo kit for it at AJPerformance.com for a total of 220 hp which is nice but till i can save all my pennies think i could mess with a vtec controller an set the vtec higher??

07SiGuy · 05-25-2007, 02:39 PM

Save your money, keep the econo box for a couple years, then buy something faster....much better option than paying a ton of cash on your R18 that won't satisfy your speed needs. I can't imagine that a VTEC controller would do much of anything on an R18....but someone else could probably give you better info on that one.

Good luck

Will06SI · 05-25-2007, 03:04 PM

Get a VTEC solenoid !

TJ213 · 05-25-2007, 04:33 PM

VTECCCCCCCCCC article

Not all VTECs are created equal

http://www.hondaclub.com/forum/artic....html#post7120

jrod2290 · 05-25-2007, 06:50 PM

Well, if you're looking to hear a little rumble from your R18 VTEC, I'd go with a CAI or a SRI. Not super expensive and you'll get a nice sound right around 3-4k RPMS and after 6

wassup61 · 05-25-2007, 07:53 PM

your vtec is a fuel sacer that is activated to optimize valve timing for combustion and pumping loss reducation at below ~3700 rpm. If you want performance it would be better to buy a turbo kit or a new car. Just enjoy the car and know that bolt ons are more for sound on the R18 than anything (without any tuning of course)

Jardiniboy · 05-27-2007, 05:21 AM

Quote:

Originally Posted by tbeers

found a turbo kit for it at AJPerformance.com for a total of 220 hp which is nice but till i can save all my pennies think i could mess with a vtec controller an set the vtec higher??

You know setting the vtec to kick in higher will make your car slower in the higher RPMs right? For example if you set your vtec to kick in at 4k rpms, you would get more power from 1k-3999 rpms then 4k-redline because the R18's vtec is for fuel economy.

arisenfury · 05-27-2007, 09:32 AM

Quote:

Originally Posted by Jardiniboy

You know setting the vtec to kick in higher will make your car slower in the higher RPMs right? For example if you set your vtec to kick in at 4k rpms, you would get more power from 1k-3999 rpms then 4k-redline because the R18's vtec is for fuel economy.

That really doesn't make that much sense, at least to me. If you could effectively lower the vtec disengagement point from about 3700rpms, you would notice slight increase in power in the lower to slight mid range rpm where the vtec previously would have been retarding the profiles on your cam to not waste fuel. This won't change your peak HP and wouldn't do anything to the car differently than it was before, after 3700rpms. This would also effectively send your gas MPG to shit because the vtec between 0 and 3700rpms is what is getting you your 30/40mpg.

TJ213 · 05-27-2007, 03:43 PM

Quote:

Originally Posted by arisenfury

That really doesn't make that much sense, at least to me. If you could effectively lower the vtec disengagement point from about 3700rpms, you would notice slight increase in power in the lower to slight mid range rpm where the vtec previously would have been retarding the profiles on your cam to not waste fuel. This won't change your peak HP and wouldn't do anything to the car differently than it was before, after 3700rpms. This would also effectively send your gas MPG to shit because the vtec between 0 and 3700rpms is what is getting you your 30/40mpg.

I thought the R18 did not use the econo-cams when at WOT?

arisenfury · 05-27-2007, 05:33 PM

Quote:

Originally Posted by TJ213

I thought the R18 did not use the econo-cams when at WOT?

Could be I'm not entirely too sure on the engagement and disengagement points, I know at WOT it does come on lower, which is effectively what you would be doing all the time if lowering the point.

tbeers · 05-29-2007, 09:58 AM

so in fact even if i got a vtec controller it wouldnt do shit because of if i set my vtec higher i would kill my gas mileage and not give me any extra ummpphh because i would kill low end power without vtec?? sorry im new to honda was a mitsu boy

arisenfury · 05-29-2007, 05:25 PM

On the D/L/EX cars, the vtec doesn't not engage at high RPMs to give you more power. It starts off engaged at 0 RPM and limits the profiles of the cam to give you better gas mileage. Depending on many variables such as throttle, speed and probably some other things determines when vtec shuts off and lets the engine run as it would normally. In your EX, you wouldn't lower the vtec point, you would lower when it turns off. However in many cases, the vtec turns off I think as low as 2000 RPMs. If you completely disengaged vtec you would not notice any different performance after about 3000 RPMs, and you would kill your gas mileage significantly.

To make your EX any faster you'll have to resort to bolt-ons and/or forced induction.

05-25-2007, 12:13 PM	#1 (permalink)
tbeers Junior Member Join Date: May 2007 Location: nj Posts: 10 tom iTrader: 0 / 0%	vtec is the vtec even there on a r18 i cant feel it or hear it ,my friends accord vtec is loud as hell honda should have just put the b18 in the ex what u guys think

05-29-2007, 09:58 AM	#17 (permalink)
tbeers Junior Member Join Date: May 2007 Location: nj Posts: 10 tom iTrader: 0 / 0%	learning so in fact even if i got a vtec controller it wouldnt do shit because of if i set my vtec higher i would kill my gas mileage and not give me any extra ummpphh because i would kill low end power without vtec?? sorry im new to honda was a mitsu boy

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05-25-2007, 12:17 PM	#2 (permalink)
xSi Member Join Date: Apr 2007 Location: The O.C (orange city) Posts: 88 Xavier iTrader: 0 / 0%	yeah or a k20 the vtec in the r18 is like from 2500 to 3500 i think correct me if im wrong but its not used for much power but economical use

05-25-2007, 12:24 PM	#3 (permalink)
tbeers Junior Member Join Date: May 2007 Location: nj Posts: 10 tom iTrader: 0 / 0%	what about a vtec controller

05-25-2007, 12:24 PM	#4 (permalink)
arisenfury Senior Member Join Date: May 2006 Location: Central CT Age: 21 Posts: 1,985 Nikon & dSLR squad #6 iTrader: 0 / 0%	Get an Si.

05-25-2007, 12:26 PM	#5 (permalink)
tbeers Junior Member Join Date: May 2007 Location: nj Posts: 10 tom iTrader: 0 / 0%	dont want an si want to build my own power + i couldnt get approved for the si

05-25-2007, 12:31 PM	#6 (permalink)
arisenfury Senior Member Join Date: May 2006 Location: Central CT Age: 21 Posts: 1,985 Nikon & dSLR squad #6 iTrader: 0 / 0%	Well you can't expect much if you get any R18 powered Civic, it has vtec for fuel economy. Vtec on the R18 just retards the profiles of the cam up until about 3500 or so in which it just lets the engine run regular.

05-25-2007, 12:37 PM	#7 (permalink)
tbeers Junior Member Join Date: May 2007 Location: nj Posts: 10 tom iTrader: 0 / 0%	found a turbo kit for it at AJPerformance.com for a total of 220 hp which is nice but till i can save all my pennies think i could mess with a vtec controller an set the vtec higher??

05-25-2007, 02:39 PM	#8 (permalink)
07SiGuy Senior Member Join Date: Jul 2006 Location: ICT, KS Posts: 209 iTrader: 0 / 0%	Save your money, keep the econo box for a couple years, then buy something faster....much better option than paying a ton of cash on your R18 that won't satisfy your speed needs. I can't imagine that a VTEC controller would do much of anything on an R18....but someone else could probably give you better info on that one. Good luck

05-25-2007, 03:04 PM	#9 (permalink)
Will06SI Senior Member Join Date: Mar 2007 Location: "NYC in Vtak" Age: 24 Posts: 10,110 Will iTrader: 3 / 100%	Get a VTEC solenoid !

05-25-2007, 04:33 PM	#10 (permalink)
TJ213 Senior Member Join Date: Dec 2006 Location: Pennsylvania Age: 18 Posts: 3,051 iTrader: 0 / 0%	VTECCCCCCCCCC article Not all VTECs are created equal http://www.hondaclub.com/forum/artic....html#post7120

05-25-2007, 06:50 PM	#11 (permalink)
jrod2290 Member Join Date: Apr 2007 Posts: 89 Jared iTrader: 0 / 0%	Well, if you're looking to hear a little rumble from your R18 VTEC, I'd go with a CAI or a SRI. Not super expensive and you'll get a nice sound right around 3-4k RPMS and after 6

05-25-2007, 07:53 PM	#12 (permalink)
wassup61 Member Join Date: Dec 2006 Posts: 75 iTrader: 1 / 100%	your vtec is a fuel sacer that is activated to optimize valve timing for combustion and pumping loss reducation at below ~3700 rpm. If you want performance it would be better to buy a turbo kit or a new car. Just enjoy the car and know that bolt ons are more for sound on the R18 than anything (without any tuning of course)

05-29-2007, 05:25 PM	#18 (permalink)
arisenfury Senior Member Join Date: May 2006 Location: Central CT Age: 21 Posts: 1,985 Nikon & dSLR squad #6 iTrader: 0 / 0%	On the D/L/EX cars, the vtec doesn't not engage at high RPMs to give you more power. It starts off engaged at 0 RPM and limits the profiles of the cam to give you better gas mileage. Depending on many variables such as throttle, speed and probably some other things determines when vtec shuts off and lets the engine run as it would normally. In your EX, you wouldn't lower the vtec point, you would lower when it turns off. However in many cases, the vtec turns off I think as low as 2000 RPMs. If you completely disengaged vtec you would not notice any different performance after about 3000 RPMs, and you would kill your gas mileage significantly. To make your EX any faster you'll have to resort to bolt-ons and/or forced induction.