dx to si or zc

[93weed_eater]

I did decide to go with the zc engine in the crx dx im getting but i was thinking. a d16a6 is a pretty good canidate for turbo. how much would i save by just putting in the a6 instead of going zc or should i just bite the bullet and get the zc. with the a6 i would try to get the engine and tranny at the same time so i could have the si tranny. besides haveing to switch it to mpfi anything i would need to know. thanks for any help.

[FourthGenHatch]

I would think the ZC is better for turbo.

[fredthedragon]

dx to si isn't a very big difference, around 15 hp, you'de be more satisfied w/ a zc swap especially if you plan to go turbo. zc trannie is better geared 1-4 si has better 5th gear plus i think a zc would be cheeper, i've seen engine trannie combos at $900 on expensive sights. and jackson racing now makes turbos for the zc as well as the a6

[91civichatch2571]

ZC's will use the same turbo kit that any other d-series engine uses. Its all compatable. Also, I would think an Si tranny or even dx would be better for a turbo application because the gears are a little longer. If you had a ZC tranny on a turbo engine i would think you would go through the gears too fast. Also, the dohc zc engine is better for turbo because of the fact that its dohc it has better tunability.

[Myjunkistight]

I just recently put a zc into my 90 rex si, I have yet to get the teg ecu, but I am not really satisfied with the performance of the engine. I can't really feel a difference from the d16. I am not sure if the ecu will make that much of a difference, I am also going to get it compression tested. But I am starting to think that I should have just kept my si engine, and turbo'd it. I will post again when I get the teg ecu and tell you if there is much difference.

[optimuscivic]

Originally Posted by 93weed_eater

I did decide to go with the zc engine in the crx dx im getting but i was thinking. a d16a6 is a pretty good canidate for turbo. how much would i save by just putting in the a6 instead of going zc or should i just bite the bullet and get the zc. with the a6 i would try to get the engine and tranny at the same time so i could have the si tranny. besides haveing to switch it to mpfi anything i would need to know. thanks for any help.

why not go with a d16z6? i know they have so much aftermarket for them compared to the zc and stock for stock they are very close to each other.

[93weed_eater]

can the z6 and y8 plug right up to the cable tranny or do you have to get the conversion? anyone have an engine they don't want lying around thats in good shape?

[optimuscivic]

Originally Posted by 93weed_eater

can the z6 and y8 plug right up to the cable tranny or do you have to get the conversion? anyone have an engine they don't want lying around thats in good shape?

the z6 and y8 will work with your cable tranny, they are both d series. only if you got the hydro tranny will you have to get the conversion kit, although i dont think they have one for the d series yet. but you can use your cable one. the things you have to worry about are the dpfi to mpfi, and obd-0 to obd-1,etc. search on this because i know it has been discussed many times, but i do know that the d16z6 has alot of potential for a d series.

[93weed_eater]

thanks for the info man ill have to look into that z6 swap. i do plan to eventually do my own turbo set up on what ever i get. whats the compression on the z6. i'd do the y8 but i don't wanna mess with the obd 2 i don't think. i do still have that p&p y8 head sitting in my closet though. i need to do something with that thing.

[Myjunkistight]

If I'm not mistaken I think that the z6 has the lowest compression of all the "good" d - series engines.

[balln69]

i think i might go with a zc, but im not sure

[93weed_eater]

is $425 to much to pay for a d16a6 with around 150k and the ecu. just wondering.

[fredthedragon]

dude i wouldn't take that engine for free unless i really needed an engine to make my car run, i wouldn't buy anything over 50k miles 75k max unless you plan to get up to your elbows in grease and green to completely rebuild it.

plus one more note. yes ecu can make that much of a difference, for example the std has the same engine as the dx and lx civics however the dx and lx have 28 more hp thanks to simply the ecu and trannie.
just one example, coming from a man who has done an std to dx conversion, although i wouldn't reccomend it unless you have a free dx lying around and own an std.

d16a6 isn't a bad engine though, check salvage yards that give you the vin # on the car they take it out of, one i know of that does that is http://www.evanshondaspecialist.com.

and remember that integra engines aren't zc engines, zc has higher compression different cams, simular but zc has 12 more hp.

[93weed_eater]

I know the diff between the integ and zc i was just wonderin cause im tempted to get it to rebuild the motor instead of doing a z6 or zc swap. i didn't think that 425 was too much for a motor and ecu i was just wonderin cause of the mileage though. be nice to use if i can get the dx to run and rebuild the a6 on the side till i can get it to where im ready to drop it in.

[fredthedragon]

check this out i hear from jackasssi that this is one place honda dealers buy engines from and they have fucking awesome prices

88-91 Civic, CRX, SOHC, 16 Valves D15B 1.5 -4 cyl- $295

88-91 Civic, CRX, Si, SOHC ZC/D16A6 1.6 -4 cyl- $395

88-91 Performance Engine, non-VTEC, 1st Gen, 130hp, engine only
ZC(DOHC) 1.6 -4 cyl- $545

-^-^- Performance Engine, non-VTEC, 1st Gen, 130hp, Engine + 5 Speed Trans
ZC(DOHC) 1.6 -4 cyl- $600 (combo)

-^-^- Performance Engine, non-VTEC, 1st Gen, 130hp, Engine + 5 Speed Trans + ECU
ZC(DOHC) 1.6 -4 cyl- $795 (combo)


88-91 Performance Engine, VTEC, 1st Gen, 160hp, engine only
B16A1 1.6 4 $595

-^-^- Performance Engine, VTEC, 1st Gen, 160hp, Engine + Cable Type Transmission + ECU
B16A1 1.6 4 $1350 (combo)