SOHC to DOHC ????? - Honda Forum / Acura Forum

Vtec CRX · 10-17-2002, 04:03 PM

is there a way to convert from SOHC to DOHC by buying just a new head or something? without buying a new block or whole new motor?

Rev ATARI · 10-17-2002, 04:04 PM

Vtec CRX · 10-17-2002, 04:48 PM

dammit

well then, whats a good SOHC cam and head setup for a 1991 honda crx si??

BennySiR · 10-17-2002, 08:26 PM

Quote:

Originally posted by Vtec CRX
dammit

well then, whats a good SOHC cam and head setup for a 1991 honda crx si??

Do you really like your SOHC that much???

johnyquest · 10-18-2002, 11:48 AM

Just wondering... Why is this not possible? If you can make an LS/VTEC, this shouldn't be that hard...

SFF900 · 10-18-2002, 02:55 PM

It is not possible....Ls/vtec is an ls (DOHC nonvtec) with a vtec head. The key is they are both B series motors. there is no single cam b series motor. Your single cam is D series. There is no DOHC D series motor. Therefore you cannot put a Dohc head on your block. My advice is swap it out for a B series, They have more potential.

mclean987 · 10-18-2002, 04:04 PM

Quote:

Originally posted by SFF900
It is not possible....Ls/vtec is an ls (DOHC nonvtec) with a vtec head. The key is they are both B series motors. there is no single cam b series motor. Your single cam is D series. There is no DOHC D series motor. Therefore you cannot put a Dohc head on your block. My advice is swap it out for a B series, They have more potential.

you could convert your car to dohc but only with a d series head, the only d series dohc engine is the zc dohc, i think it used 2 come in integras like before 1990 but it wouldnt really be worth alot of conversion better to get a sohc vtec and put it on if u dont want to spend 1000's for a b series engine you could do that and work on that engine, everyone says swap to b series but i dont think its worth it unless u going b18 or h22 because b16 are crap i smoke them everyday with my sohc vtec !

SFF900 · 10-18-2002, 10:06 PM

The zc swap is not legal if that matters to you unless you have a car made before 90 or 91 i think

Del_Whoa · 10-18-2002, 10:53 PM

Just go for a mini me hybrid, you have a good d series motor to start out with.

Vtec CRX · 10-20-2002, 11:23 AM

i am going to get the b18c5 motor as soon as possible, but a friend of mine is an idiot and has agreed to buy me a head and cam for christmas, so i am getting this for free and i was wondering whats a good head and cam setup i can get?

Vtec CRX · 10-20-2002, 11:24 AM

my car is a 1991, and why isnt that dohc d series motor swap legal? and if i did do it, would it be faster then my current d16 with aem cai, polished and ported, dc headers, and pace setter exhaust?

88 rex · 10-20-2002, 11:31 AM

Quote:

Originally posted by Vtec CRX
i am going to get the b18c5 motor as soon as possible

How'd you get from wanting to just swap heads to the C5? that is a big $$$$ difference........just curious.

88 rex · 10-20-2002, 11:33 AM

Quote:

Originally posted by Vtec CRX
my car is a 1991, and why isnt that dohc d series motor swap legal? and if i did do it, would it be faster then my current d16 with aem cai, polished and ported, dc headers, and pace setter exhaust?

ZC is legal.........Also it is very common and a pretty straight-forward swap. AND it would most likely be faster than your current set-up.............. and a lot more potential w/ the ZC.

Vtec CRX · 10-20-2002, 11:38 AM

thats, cool, ill be lookin around for one. money isnt really a problem, yeah i dont want to spend a lot but i could if i really wanted to.

88 rex · 10-20-2002, 11:53 AM

Quote:

Originally posted by Vtec CRX
thats, cool, ill be lookin around for one. money isnt really a problem, yeah i dont want to spend a lot but i could if i really wanted to.

If money is no problem and you dont want spend a shitload of money then get a B16. Not completely expensive, but a lot more power out of the box than any D-series motor.