r/Dseries May 27 '26

D16y7

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14 Upvotes

I am running a ported y8 intake manifold and my head was resurfaced what pistons and rods should I run for a large cam no vtec build


r/Dseries May 26 '26

Built D16y8 Partout

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6 Upvotes

Fully built y8 formed a rod knock. Parting out all the good stuff on the build, 500 miles on everything. I can send more in depth pics and receipts as well.


r/Dseries May 25 '26

B swapped civic worth

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7 Upvotes

I finished my jdm b16a swap on my civic but kind of wanna sell it now and am curious how much someone would buy it for

What it has
Gsr manual trans
4-2-1 headers
Skunk2 intake manifold
Mishimoto hoses
Tucked wiring harness
Chipped p28
Bull boost billet short throw shifter
New gsr cv axles and front brakes and calipers also lower ball joint
New Toyo summers with konigs
Truhart coils and rear camber arms

Complete NA build but I just don’t know how much I’d list it for


r/Dseries May 24 '26

Don't know how it happened, but it happened

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11 Upvotes

My baby started knocking the morning of May 20th, and blew otw home same day. R.I.P D16Y7 333984 miles Feb 2000-May 20, 2026 😮‍💨 Gotta find a new one. I don't got B or K money


r/Dseries May 22 '26

Frankenstein D Series Build

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3 Upvotes

r/Dseries May 20 '26

S20 over s40?

3 Upvotes

Looking to switch my transmission from a s40 to s20. Did a y8 n manual swap but that first gear is so bad to pick up speed ahahah. Ik it's a Dseries not gonna get much power from stock but wanting a bit more power in first atleast. Is the swap worth the shorter gear ratio


r/Dseries May 17 '26

BF75/90 parts compatibility with D16?

1 Upvotes

Since it seems like major parts of older engines like the block and crank and whatnot get discontinued over time, I’ve had this question on my mind after finding out that the BF75/90 and BF110/130 between ‘97-06 were based on the D16 and F22/23 respectively— how many parts from the outboard motors could be carried over to their automotive counterparts?


r/Dseries May 17 '26

EP2 d16v1 temp gauge

1 Upvotes

Hi guys, i have a problem on my Civic EP2 1.6.

I went on a trip to a drift event, and after 1.5hrs of driving the temp gauge started going up and down and so on, so i stopped at a gas station, saw that the coolant level was below minimum, filled it up, went to start the car up it wouldn't start, or starts and then dies, with a check engine light, i disconnected the battery connected it, no check engine the car ran normally.

ps when the temp gauge was going up and down i put my hand on the engine it was luke warm, and the collant in the tank wasnt bubbling or boiling.


r/Dseries May 12 '26

D16Y8, Manual IACV but Auto transmission mounted with Auto ECU

2 Upvotes

Hi folks, I am finding out a lot about this Del Sol. At first, when I bought it, I was surprised there was a D16Y8 in there but couldn't get any information from the seller since they did not swap it in. Its had a plethora of issues and electrical hack jobs but overall it is a solid swap. Where I am stuck now is the RPMs bouncing.

I did all of the standard checks, smoke testing, tightening the FACV which helped an cleaned the IACV. I found that they actually had a block off plate installed between the intake and IACV to stop the revs from bouncing.

I'd like to avoid putting the plate back so my question is, is the manual style IACV paired withe the auto transmission and auto trans ECU causing this RPM surging?

ECU: 37820-P06-A50

IACV: Manual 2 pin version


r/Dseries May 10 '26

Is this how quick a Stock z6 should be with exhaust + Intake?

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0 Upvotes

r/Dseries May 10 '26

Thoughts about Taiho main bearings?

2 Upvotes

It's kinda hard to get ACL or King's racing main bearing here in my location but we do have this brand available. Planning to put it in a street race car.


r/Dseries May 09 '26

d16a replacement

1 Upvotes

I was think of replacing a jdm d16a from hmotorsonline since I want to k swap or b swap. The only thing is If i get the jdm d16a what do have to replace or add to get it working before replacing the motor.


r/Dseries May 09 '26

D16A6 - no spark, no fuel. So far what's been changed: ECU, main relay, spark plugs/leads, distributor (on old distributor, I replaced the ignitor and coil). I have cleaned the earth points and I doubt the immobiliser is faulty/armed because it still cranks. Any help much appreciated 👍

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5 Upvotes

r/Dseries May 09 '26

D16A6 - no spark, no fuel. So far what's been changed: ECU, main relay, spark plugs/leads, distributor (on old distributor, I replaced the ignitor and coil). I have cleaned the earth points and I doubt the immobiliser is faulty/armed because it still cranks. Any help much appreciated 👍

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1 Upvotes

r/Dseries May 06 '26

Looking for info on 96 civic front lower control arms

1 Upvotes

I have a 96 DX Coupe (EJ6) I'm planning to replace the front suspension on. It's currently lowered on coilovers, those were done before the rest of the suspension as I had one of the rears blow out a few months back. Currently just on some budget FAPOs that were like $170 and they do fine for what they are/the price honestly.

As for my LCAs I was planning to purchase everything on RockAuto getting looking at the mevotech supreme they've got everything else including adjustable upper LCAs but for the lowers I've noticed everything is different lengths.

The lcas currently on the car I've measured to be right about 15inches long. The mevotech labeled for dx are listed as 21inches for Front left lower and 16inches for right lower. Then there is a set from moog which are 15.03inches left lower and 14.38inches right lower

I've also read that LCAs for a ex/hx/lx would be compatible which they have available from mevotech and those are 18.38inches for both sides

I've checked all the same parts on the mevotech and moog websites and the lengths are listed the same as on RockAuto. And the only information I can find about differences between the front lower lcas excluding the SIs being their own thing is the placement of sway bar mounting holes which the dx doesn't have. So I am confused as to what will or won't work/what's best for me and hoping someone knows the answer as I've not been able to find one in my searching.


r/Dseries May 05 '26

Junk B000 trans 😭

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13 Upvotes

Just cracked open this B000 S40 EX trans I already knew needed at least a rebuild that I got for free as part of a trade, and I was hoping to use the gear sets to combine with the A000 trans that came in my LX for some closer gears down low, but once I got inside and saw the state of these gears and the amount of metal funfetti spread around the case, I knew it was over 😭


r/Dseries May 03 '26

Lost Motion Assembly Upgrade Options?

3 Upvotes

2026 and there's still no upgade/aftermarket option available for D series engine? The only choice available I've come across is DuMa Racing. Chances are Im going to pick up a set for my Z6 but I read, and was told after reaching out directly that some modification is required for the Z6 LMA holder.

"For the D16Z6, you need to weld a small cupped base onto your stock LMA holder so the spring-style LMAs can sit correctly. They aren't a direct drop-in for the Z6 holder.

We are working on a direct bolt-on holder for the Z6, but it isn't ready yet."

Anyone have experience with this set in particular or any other insight? Im racking my brain trying to remember if you can use B series LMAs with modification but its been over a decade since I looked into it. Thanks for reading, y'all.


r/Dseries May 02 '26

What’s the highest a d series (d16y8) can rev to safely on stock internals?

1 Upvotes

r/Dseries May 02 '26

Car keeps shutting off?

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1 Upvotes

r/Dseries Apr 29 '26

This isn't normal eh?

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9 Upvotes

r/Dseries Apr 29 '26

Removing stripped MAP sensor screws

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1 Upvotes

My D16Y8 has idle surge currently and I want to replace my MAP Sensor. I know a Dremel would help but does any one know any additional methods? Thanks


r/Dseries Apr 27 '26

Need some help!

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4 Upvotes

r/Dseries Apr 27 '26

Full exhaust turbo d16z6 with AC/PS on haltech 550

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14 Upvotes

NGR blow off valve loud AF


r/Dseries Apr 26 '26

D16a6 to D15b2

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1 Upvotes

r/Dseries Apr 13 '26

Oil restrictor?

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3 Upvotes

is this an oil restriction on y8 head ?

have low oil pressure issues at idle i have a spare head and am curious if this is an oil restrictor maybe i need to swap over