mfm1200

If this sounds stupid then I apologise as I'm a newby on this forum.
rather than do a complete engine swap, is it possible to convert a SOHC VTEC motor to DOHC VTEC.
I'm living in a country in asia where the govt. has outlawed engine changes. as I understand it, if you throw a rod or something catastrophic like that where you need to change the block it is a very difficult process.

I'm looking for something that will give me a performance increase for reasonable $$$$.
Or should I be looking at a power chip or modding my own head???
cheers
mfm
'93 civic esi 4dr
d16z6/auto

Redcivic

It's impossible.

white_n_slow

nope, sorry.

d16z6 is an excellent motor to turbo though... If your laws allow that, I would look in that direction. Theres really no other way (with the exception of nitrous) to get good power out of that motor.

mfm1200

thanks a lot guys,
possibly take a look at a turbo.
need to check the govt. regs tho', as they are very draconian.
cars needs to be checked by govt. annually now as over 10yo.
cheers.
mfm

Spood

What country are you in?

Soulless

check out D-series.org the z6 is a nice motor.

BigBlob202

You dont need to add another cam if u have an inline engine, because there isnt really anywhere to put it. V engines have 2 cams because all of the cylinders arent lined up in a row where one cam can reach them all. So you really dont need to add another cam. However, i would look into buying a performance cam. These cams are special made to change the valve timing just a little bit, and to keep the valves open a little longer for increased power. Performance chips are also a really easy way to get more power. A supercharger would also work but make sure that your engine is strong enought to handle all that extra power if you do go with a supercharger.

Kai

You have no idea what you're talking about.

First, Single overhead cam inline engine VS. a Dual overhead cam inline engine. In a single cam, one cam controls the intake and exhaust side, while in a dual cam one cam controls the intake and the other controls the exhaust. It's a basic idea that allows better control over lift, duration, and timing between the intake and exhaust sides.

Next, in V type engines, the most have a single, central cam mounted in the block just over the crank with lifters and pushrods to operate the rockers on BOTH sides of the engine. Two banks, one cam. That was primative, then along came DOHC V engines (one per bank, like a SOHC inline) then quad cam engines (two per bank, working like a DOHC inline.)

Edit: Picture added for clarity.

mfm1200

sorry spood,
I'm in southern china, the name of the place is macau. a former portuguese colony now handed back to china a few years ago.
cheers mfm

Spood

Bummer that things are so draconian there...one of my favorite books takes place in Macau.

Sorry about the off-topic-ness