1985 civic

im in the process of saving up for an engine swap for my 85 civic 4dr. should i get the 1st gen b16 or wait a lil while and save up for the b18. my main concern is if the b18 will fit. the 85 civic and crx should have the same size engine bay. if any one has done the b18 swap in an 85 crx, please let me know! thanks.

TrAnCeD_RaCeR

well i have a 4th gen re with a b18c1 and it was kinda tight since i wanted my a/c but it shouldnt be that bad if u dont get a/c. im preety sureur going to have to hack up sumthing to fit in a b18c1 in ur bay? well i dunno to much about ur bay maybe someone else do. btw i wouldnt go with a any b18 if i wasnt going turbo. (unless it's a b18c5) IMO

1985 civic

im surely going turbo....but that will be WAY after the swap...hehe gotta save up for that too.

TrAnCeD_RaCeR

well go B18C1 or if u have the right build the B18B. ur choice good luck!

Losrocket_

What i would do is either build a LSvtec setup or B20vtec. I had an '87 si with a B16 and it was fast but the torque sucked! so i swapped the block out for a B20 and it was well worth it, it was very powerful. Im not too familiar with B18c1's when it comes to prices for them but im sure for not much more you could build either formentioned setup and its gonna have a lot more power than the GSR.

The car you want to put it in is still very light and with one of those setups it would be crazy. My friend who has my old car was thinkin of taking everything off of the Si and putting it in an 86-87 sedan. Im pretty sure no one else has ever done that but i could be wrong! Good luck with whatever you do.

spdster

Definitely go B18C1....I made the mistake of rushing into it with my B16....it's decent esp with ITR cams and valve train....but the B18C1 has much more potential and out of the box is so much quicker.




[Modified by spdster, 11:48 AM 7/14/2002]

TrAnCeD_RaCeR

seats four,

he wants to go tirbo in the future so even if he does go with a b18b or b20b(z) y would he put on a VTEC? im not exactly sure y turbo doesn't like VTEC if someone knows y could u explain this? but stock vs. stock i think the b18c1 would beat an b18b (i dunno know bout the b20). btw if he does a b18b/b20 vtec swap it would cost alot more than a deal on a b18c1, and hes having a hard time trying to save for the b18c1

REX VT

B18 or B20 because torque rules

Whatever your choice the car will be a real sleeper

poison

displacement man, always displacement, go as big as you can with the least amount of weight

the DR.

iTrader: (1)

my theory (might not be correct, but its what i think) that vtec increases vavle overlap when the vtec "kicks in" more so with the DOHC than the SOHC, while great for n/a applications when the engine is just trying to suck in air, forced induction is a whole different beast in itself, i believe that this forced air combined with valve overlap will decrease volumetric efficiency, with the intake valve opened letting in forced air instaed of sucking it in, some will go straight through the chamber and get out into the exhaust before any type of combustion has occured. thats just what i think, anyone care to elaborate?

EG8R

Ask two.oh, he put a CR-VTEC in his Civic 87(I think) hatch....

poison

overlap is your enemy with FI

VTEC & turbo can be great combo's if you have the right cams with proper tuning.

Losrocket_

Like you said though if he is planing on turbo in the future why is he considering a B16 or B18c1. If hes looking into the long run then why would he get the B18c1. I feel in my opinion that B18c1's are overpriced when you can get motors with a lot of potential for a lot cheaper(i.e LS or crv) especially if youre considering turbo and may not utilize a vtec motor when you do so. I think i was going off of a N/A point of view. You can get an LS or B20 for fairly cheap so why not just go with the 2.0 and save up for the turbo instead of blowing even more money on the B18c1 setup. Plus ive heard form many people that a GSR intake manifold does not clear the firewall in 84-87 civics. I was considering a GSR in my '87 hatchback but instead went with the B20vtec setup.

TrAnCeD_RaCeR

well in the long run b18c1 has been proven by alot of people around here to be very reliable since they had thiers way before i had mine. i also heard("HEARD") that turboed LSVTEC setup's isnt near as reliable as a turboed b18c1. and i dont think that the b18c1 is overpriced based on the fact that it has more hp and and basically the same amount of torque as the b18b


REx VT,

can u tell me why the b18c1 torque dont rule to.........
B18C1
170hp @ 7600 rpm
129lb/ft @ 6200 rpm
8000rpm redline


B18B1
142hp @ 6300 rpm
127lb/ft @ 5200 rpm
6800rpm redline

or can anyone tell me? is it because it's not VTEC yet? and one more thing, why do ppl say a a tuned b18b (not VTEC)can beat a tuned b18c1 running the same boost (10 psi) when the b18c1 has an edge on the torque side and more hp? i just dont get that theory either

REX VT

True but what about the ability to rev? I'd rather have an engine that capable of revving up to 8K out-the-box and turbo charge it. Sure, you'll have cam overlap but why not disable VTEC?

I've driven many turbo cars and though I love the torque I hate the quick shifting and/or lack of rpm.

I don't know anything about the B18b's since we don't have them in Europe but the B16a/B18c are (stock) very strong for use with F/I. I thought about going turbo myself (hell I had the parts in house) but wasn't to sure about the fuel management. But I would choose a B-serie VTEC to do it with. Perhaps in the future I will built me a CRVTEC Turbo/SC

Higher revs doesn't mean more torque, just more power and VTEC gives the torque over a broad range of rpm. But hey.. if you use F/I who cares about VTEC?


[Modified by REX VT, 1:37 AM 7/15/2002]