D15, D16, D17 and Mini-Me swaps
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By Apexracing
#140963 ok for starters, cx motors really suck, not to mention mine needs rings. and i want to swap out the motor. the d15 in my 95 dx sedan, is a hell of a strong motor and runs like a freaking champ, but i was thinking of getting a d16 for my hatch, and give vtec a try, i can probably get one from a junkyard for under 200, they had two there, one in a ex coupe, and the other in a ex sedan. they both are automatic (not sure if that makes a difference) im not sure if i should keep my cx transmission or not, im not sure if its shorter or longer than say my dx tranny. i know the ex tranny is longer than the dx, but the cars with d16's are auto (go figure) so if i go and pull one of these d16 motors what else should i grab while im there to make the swap easier, what would make it easier to pull the motor out ( i've never had one out before) and how hard would it be to swap the auto setup motor for use with a mt? i'm thinking i would have to change the flywheel prolly, and fit the clutch to it right? sorry if i sound dense i'v just never had to get this deep into a car before lol.
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By teal_dx
#140971
Apexracing wrote:ok for starters, cx motors really suck, not to mention mine needs rings. and i want to swap out the motor. the d15 in my 95 dx sedan, is a hell of a strong motor and runs like a freaking champ, but i was thinking of getting a d16 for my hatch, and give vtec a try, i can probably get one from a junkyard for under 200, they had two there, one in a ex coupe, and the other in a ex sedan. they both are automatic (not sure if that makes a difference) im not sure if i should keep my cx transmission or not, im not sure if its shorter or longer than say my dx tranny. i know the ex tranny is longer than the dx, but the cars with d16's are auto (go figure) so if i go and pull one of these d16 motors what else should i grab while im there to make the swap easier, what would make it easier to pull the motor out ( i've never had one out before) and how hard would it be to swap the auto setup motor for use with a mt? i'm thinking i would have to change the flywheel prolly, and fit the clutch to it right? sorry if i sound dense i'v just never had to get this deep into a car before lol.


The auto D16z6 engine will be the same as a manual one. The EX manual trans is actually shorter than the DX one. The CX has very long gears though... the Z6 mated to your DX tranny will be a little better. But still nothing like the EX or Si tranny.

To get the motor to mate to a manual trans, you will need the Manual flywheel bolts, flywheel, pilot bearing. You should have all that on your D15b7, but replace the pilot bearing while swapping it over and also the Release Bearing in the tranny housing. Resurface the flywheel and it is also the perfect time to replace your clutch.

If you don't have a picker, you could drop the engine through the bottom. Check the DIY thread for a How-to on that :thumb:
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By Apexracing
#141001 but wouldn't i want the longer gears of the cx tranny? i mean don't longer gears equate possible higher speeds? forgive me if i seem ignorant, so more than likely i would be better off shopping around for a d16z6 with matching transmission?
User avatar
By Chance
#141012
Apexracing wrote:but wouldn't i want the longer gears of the cx tranny? i mean don't longer gears equate possible higher speeds?


Not necessarily. Longer gears means it will take longer to get up to any given speed. Better fuel economy for sure. So it depends on what your going for. Like Teal said it will be alot quicker with an ex/si tranny.
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By Apexracing
#141015 so really tranny choice is relavant to given hp and torque, i understand, a longer tranny would only be usefull if your building a monster motor, which im not, so ill shop for a matching d16z6 motor and tranny. if any one knows of a good place to buy please let me know. thanks guys.
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By teal_dx
#141016 true, it depends what your goals are... if you are looking for better MPG, then keep the CX for sure :thumb: But if it is acceleration, then the ex or si tranny is best (ex & si tranny are almost identical ratios)

there's a sticky in the Transmission section with the gear ratios for each tranny :thumb:
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By Apexracing
#141020 nah not really concerned with mpg the hatch is light as hell, and is only going to be my summer car, my dx sedan will remain my winter car and all around driver for years to come.
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By matt is (eg6)
#141418 shop around for a z6 with an si tranny... i had one and liked it but it still just wasnt fast enough for me :hehe: so i moved up to a jdm d15b
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By Apexracing
#141534 i could and may get a jdm sohc motor with gearbox, do any of them come with lsd's? i can get a complete motor tranny setup for 900$ and under from ebay shipped.
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By Ajax1989
#141540 the jdm d15b some of them came wit the lsd trans

but 900 for a complete motor is good
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By matt is (eg6)
#141710 mine is a d15b with a ported and polished y8 head with p28 and si trans for only $570 but i got hooked up lol.... craigslist and local forums help out alot when you're build a motor... but on ebay you can get d15b's with trannys for only $800 and they are basically plug and play :thumb:
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By Apexracing
#141721 http://www.jdmenginedepot.com/jdm_engin ... Civic_Si-R


good deal? b16a should be a direct bolt on yes?


or

http://www.tokyomotorimports.com/engine ... SSION.html

and for usa guys on here, and recomendations on where to get engines from? i want a decent price, but i want a good motor.
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By matt is (eg6)
#141723 hmotorsonline.com is a really good place and they have decent prices :thumb:
By nig90
#142425 make sure to grab the engine harness tool. might as well grab both and sell the under dash harness or use it to pin the vtec.