boostdvic

Hey all,

I blew thew headgasket on my civic a while back. Finally got time to work on it to get it up and running. I'm pretty sure there was a cometic headgasket in there before i blew it up. I went on the cometic gasket website to buy one and they had a list of thickness' I have to pick from... .027" .030" .036" .040"

Just wondering what thickness i should get since I have a t3/t4 turbo on the car, 440 injectors and uprgraded ecu with s300. Also, should i stick with a cometic mls headgasket or is there a few other options that may possibly be better?


Thanks fellas,
Matt

boostdvic

Update:

I removed the head to discover the whole engine will need a rebuild. I'm just gonna buy a used motor which is what seems to be the cheapest route to go. What would need to be done to my car/ecu to swap a d16 in there instead of buying a d15 again. I found a d16 with tranny for $900. Wondering if it would be worth it etc...I couldn't seem to have found a thread about this either. Any help/advice would be greatly appreciated.

Thanks,
Matt

taco_hut

Reuse the b7 trans, its good for MPG yo.

buy a z6 when you can find one, rebuilt it with 10.5:1 pistons forged rods etc. Boost it.

b7s are kinda crummy motors. They're just not stout at all. I'm pretty sure the vtec motors are infinitely better at taking a beating

taco_hut

And immediately sell your b7 for scrap weight. I. Wasted like $400 replacing valves, gaskets, restoring the head thinking that it was the problem but just because it had no cylinder leakage doesn't mean the block isn't shot out, the oil control rings were very very sad.

NotARaCist

iTrader: (1)

Since you're already turbo'd, you'll need a new tune, end of discussion. If you go with a Z6, you'll also need to wire in VTEC, like TomCat said, which is fairly easy to do. The B7 is a straight up garbage engine - don't feel bad about scrapping it. Also, $900 for a D series? That's...well, there's no other word for it. That's ******* stupid. HMO has a D16A for $750 +S/H, and that's with all of their fun warranties and everything. If you buy private market, you can get a Y7 for under $300 in healthy condition.

Also, do yourself a favor, toss that transmission. Get a 92-95 EX/SI, or 96-00 EX transmission. Your butt dyno will thank you, as will your wallet, especially if you do a lot of city driving (and don't have a heavy foot). Shorter gears = faster acceleration = less time under load getting to speed = more time at partial throttle cruising = better gas mileage.

NotARaCist

iTrader: (1)

And a slight modification to the board, to add VTEC.

boostdvic

Hey guys,

So i called usa jdm engines to see about a d16z6. The guy on the phone said they only had the d16y5 motor right now. He said that was the jdm version of the z6. Wondering I can buy that one and still use that for the swap instead of waiting for a z6. Is there anything else I would have to do differently for the y5 that i wouldnt have to do with the z6? He said the Y5 has a little more hp as well.

I appricaite the input, its ben a huge help to get this project started.

Thanks,
Matt

NotARaCist

iTrader: (1)

The Y5 most certainly is not the JDM version of the Z6. It's the VTEC-E version of the D16Y8, and it won't just "drop in and go" for your chassis.

boostdvic

Alright, looks like my best bet will be to just wait for them to get a d16z6 in stock. As far as an ecu will i have to get a p28 or will my ecu for my d15 with s300 still work?

NotARaCist

iTrader: (1)

With minor modifications, and the obvious retune, your current ECU should work.

ronlikesd

Try local salvage yards, if an EH9 or EJ1 just got totaled, that motor should do you right.

boostdvic

Hey guys,

So after about a week of searching for a d16z6, these are my options so far.

1- A local junkyard can get me a z6 with 89k for 650

2- I called usajdmengines and spoke with a guy and he stated it will be almost impossible to find the z6. He said I should go with a d16a (which I believe is non VTEC) or get the zc. He said the zc would fit in without a problem. I thought the zc was for 96-00 civics? I got a 94 dx. He kinda confused me/ or Im getting all these jdm and usa motor identifications mixed up.

3- TorontoJDM.com - Total Japanese Domestic Motor - JDM D15B OBD1 VTEC ENGINE - this is a full swap but it's the d15 VTEC from Japan. Is there a difference between power/tranny or anything else with this compared to the d16z6?

4- there's a fully professionally built d16 on eBay ready for 300 +hp for 1900


What do you guys think? I'm kinda at a standstill because this is a big move and once a make one m gonna have to stick to it.

Thanks guys,
Matt

boostdvic

I failed to mention that hmotorsonline also has the VTEC d15 long block for like 800

NotARaCist

iTrader: (1)

If you're staying D series, get the Z6. End of.

LTCxD2B

Junkyard engine with a rebuild ....

boostdvic

well i bought that Z6 from the junkyard with 89k. Gonna have the head gone through when i get it and leave the bottom end alone for now. As far as my transmission goes, I'm going to use the d15 tranny. Will the flywheel bolt up fine to the d16 if i get it shaved and buy a new clutch? Lookin at going with a stage 1 or 2 exedy. From what I have read a lighter flywheel wont help me too much with the turbo application.

I forgot where i got my ECU from with s300 because its been so long since i got it. Is there a good repuable place you guys suggest I ship it to to have it rechipped etc. What exactly will i have to tell them to do to it besides a base map for the 440s? They should swap over just fine into the d16 i take it.

I can't thank you guys enough for your help since this is my first swap.
Matt