vtec controller for FD1

[twing]

Honda is into i-vtec propaganda now. Most of their engine is called i-vtec.
Though they are all i-vtec, they can be different. Let me start.

i-vtec engine in jazz and city (L series engine)is fulltime 16 valve engine. On a preset rpm, it will switch to more agressive cam on intake *ONLY*. Think about the old d16y1 and d16y8 engine.

i-vtec engine in FD1 (R series engine), it delays the intake valve closing to reduce pumping lost. More info here...
http://asia.vtec.net/Engines/R18A/index.html
the video: http://world.honda.com/HDTV/news/2005-4050705a/

i-vtec engine in FD2 and Thai Accord and CRV is 12Valve economy mode + VTC (valve timing control) on intake. On high RPM, it will switch to 16Valve mode. When I say 12Valve, i mean on each cylinder, one intake valve just *slightly* opens. This is to promote swirl effect in the cylinder to promote better economy.
Watch the i-vtec demo video on this website:
http://civic.honda.com.au/about-the-...-handling.aspx

Last i-vtec is the one in FN2, FD2R, and Accord Euro. It's fulltime 16 Valve + VTC on intake came. On certain RPM, it will switch the intake and exhaust to more aggressive cam profile.. and you will hear the ROAR... just like the good old B16 and B18. I think you can ONLY use the Vtec controller on this kind of engine.

google about Honda's engine for more info.

[JOhnnyFD]

"Owners of the new 8G Civic 1.8S should be proud and reassured that their new 1.8l SOHC i-VTEC engine is truly 'state of the art' !"

[JOhnnyFD]

was driving home last night.. went up this hill and at around 4600rpm VTEC kicked in yo and i was lik w000t!!

and it's from an R18A.. lol weird

[FallenAngel]

Haha i don't think thats VTEC :P

FD1's are VTEC'in at 1000-3800RPM

[JOhnnyFD]

if thats not vtec.. then wat was that all about?

[curtis265]

yeah the R18 VTEC is sad vtec I'd like to have the classic 'kick' too, but it's only available for the K20As these days

[ej20i]

found the vtec solenoid to install vtec light!
will be my new project

[aero]

looks like we need to spend a crap load of money to get some fd2r k20 engines or the k24, for the classic vtec kick in performance... money which i probably will never have to spend on a car

[curtis265]

wai tthere's a website with the R18 vtec solenoid on it...

http://www.hondatuningmagazine.com/t.../photo_18.html

It shows it, but no tthe cable... It's sorta on the left, and behind the engine.

[blasdf]

yeah i wouldn't worry about making the car go fast.
plenty of time for fast cars eh, really for me i just wanted something to reliable to get me around as i only had a little oldschool daewoo, while ive been getting myself set up in surfers.
might have to get something like a r35 gtr next, haha

[aero]

wai tthere's a website with the R18 vtec solenoid on it...

http://www.hondatuningmagazine.com/t.../photo_18.html

It shows it, but no tthe cable... It's sorta on the left, and behind the engine.

soz, im pretty noob at this techincal and mechnical side of cars.. what is a solenoid and what does it do?

[FallenAngel]

if thats not vtec.. then wat was that all about?

The difference in sound is because of the 'Variable Length Intake Manifold'

Read about it here

http://asia.vtec.net/Engines/R18A/index.html