sr vvt head on ka?

[DriftingJesus]

Hey guys and gals heres a really stupid question.

So I've been sitting around lately pondering what kind of power increase I would get if i had vtec type heads on my ka. And then it hit me maybe with some modification the head of a fuked up sr could be made to made to work on my ka with some extensive modification. Of course remeber before you all stone me that this is just theoretical. Would there be any possible way to make a s14 varviable valve timing head work on a ka24de?You know I case I know someone who cracked their soda can block?

All I konw is that with vvt I could build a really kickass na motor

[quiksilvia]

i dont see how the heads would line up, and the ignition issue?

[95nismo240]

its a great idea but i dont think it will ever happen

[themadscientist]

variable valve timing is overrated, bells and whistles man. Put the time and effort into beefing up the engine's internals.

[dfw240_EE]

True, VTEC is widely recognized in Civic circles as being the king for streetability, the engine runs nice at high and low RPM. However, many serious racebuilt Civic engines (for drag at least) are the single cam non-VTEC engines. Lighter valve train and such engines ALWAYS run at high RPM anyways.

[SimpleEnigma]

VTEC does come in handy at high RPMs, helping with breathability and stability at the insane RPMs that most Hondas can reach. One major problem that you would run into would be the fact that there is a distributor on the KA engine and the ignition timing is controlled mechanically by the distributor. From what i have heard is that VVT-i (toyota) and VTEC engines are all electronically controlled ignitions like the SR which is why it works with the SR, since the computer can change the ignition timing to account for the sudden change in cam timing when VTEC kicks in. I dont think you can do that with engines whos ignition timing is controlled by a distributor. So, unless you a.) find a way to alter the KA to accept the VVT cams and control solenoids and b.) find a way to bypass the distributor on the KA i dont think you will be able to go VVT on the KA block. The other thing is that you dont necessarily need VVT (not downing the idea.....would silence those Honda guys who flaunt VTEC at us, and be just sweet anyway). Like dfw240_EE said, a lot of racebuilt civic guys got rid of the VTEC function to eliminate some of the bells and whistles and stuff that can go wrong when u dont need it to. Also, i guess i am a bit old fashioned, but if u look at some of the old school v-8's like the Ford 5.0 and some of the newer domestic v-8s Chevy LS2 and the 5.0L Cammer V-8 in the Mustang GTR, they dont have VVT and they get crazy power.....taking into account the fact that they have much larger displacement. just some points to ponder.....would be cool to stick a tacky VTEC badge on a 240 and have it ring true...lol

[black s13]

From what i have heard is that VVT-i (toyota) and VTEC engines are all electronically controlled ignitions like the SR

hondas have distributors.

[ArticDragon192]

^ The non-VTEC ones?

[black s13]

^ The non-VTEC ones?

and the VTEC ones.

like i said, hondas have distrubutors.

[s13EastTN]

Yes, but its mounted on the end of the cam.

[black s13]

exactly. it is driven by the cam, not the crank. any change the cam sees, the dist. sees as well.

[a 1g terror]

VVT is nothing like VTEC... VTEC actualy makes power..

[armysweitzer]

just slap a t25 on there and call it day. Would cost the same and probably have better results.

whats next turbo diesel for a 240? my god people let it rest.

[Red coupe]

I would not assume that all the oil and collant passages would line up properly, and I dont see what "work" you would do to resolve that...are the KA and SR head gaskets the same? load 2 pictures into photoshop if you can and overlay them to check how the passages in it line up.

[dfw240_EE]

just slap a t25 on there and call it day. Would cost the same and probably have better results.

whats next turbo diesel for a 240? my god people let it rest.

I was actually thinking turbo bio-diesel

[KADreams]

VVT is nothing like VTEC... VTEC actualy makes power..

... and Neo VVL makes even more power.

[karmakaze]

VVT is nothing like VTEC... VTEC actualy makes power..

your right, VTEC is nothing Like VVT.All VVT does is change your timing. VTEC changes rise duration timing and a few other things. (i think? correct me if i am wrong) NeoVVL would be more comparable to VTEC than VVT

Also, it does not "kick in" like VTEC does. It actually disengages after a few thousand RPM. Because it is only there to help with the low end torque.