Topic: Dohc Zc/D16a1 Fans. New Throttle Body adapter/Spacer (Read 23338 times)

chris · « **on:** October 06, 2009, 06:33:05 PM »

Another Spacer from Pbt or Me. This is an adapter/spacer for the d16a1 integra/dohc zc Jdm motors. They along with the d16a6 share an odd bolt pattern not based on the aftermarket bolt pattern throttle bodies. This limits you to a oem overbored throttle body of only 59mm plate size. With so many 400+ whp d series motors coming out of the wood works via the sohc d series I figured offer a product to help those getting to that goal with the Dohc D series Honda motors.

Its a 2 piece design due to having to get correct centered ports and keeping the iacv port happy. The plates thickness is a total of 3/4 inch. They taper from a 70mm inlet down to a 62mm that meets at the intake manifold.

Gaskets use Rtv silcone its 2 bucks a tube and does the job.

So far the one car tested with stock cams but ported head/74mm throttle body/spacer/bolts ons rips for such a simple motor build. Anywho here are pics its a gallery with a pbtuning 70mm unit installed on a d16a1 88-89 integra manifold along with the adapter/spacer.

http://img80.imageshack.us/gal.php?g=spacer1z.jpg

chris · « **Reply #1 on:** October 06, 2009, 06:39:07 PM »

ratcityrex · « **Reply #2 on:** October 06, 2009, 06:40:29 PM »

great idea chris! I might be interested in a setup like this for my father-in-law for xmas. How much?

D15Bastard · « **Reply #3 on:** October 06, 2009, 06:41:09 PM »

looks good. keeping the zc's alive

chris · « **Reply #4 on:** October 06, 2009, 06:43:31 PM »

70 without bolts. 85 if I include the bolts. Its a low production item so pricing is a little more expensive. Its also a 2 piece design so machine time takes longer also.

chris · « **Reply #5 on:** October 06, 2009, 07:04:18 PM »

Quote from: D15Bastard on October 06, 2009, 06:41:09 PM

looks good. keeping the zc's alive

Im trying. The dohc zc is really a bitchin motor that has kind of been forgotten.

chris · « **Reply #6 on:** October 06, 2009, 07:08:33 PM »

Manifold shown is not ported hence the lip. When port matching you will use the first spacer as a guide port to that and blend into the spacer for a perfect port.

This is what you should do also with my other spacers for the B series and d16z6/d16y8 manifolds.

88dx · « **Reply #7 on:** October 06, 2009, 07:42:37 PM »

chris are you feeling OK

U never post pics

chris · « **Reply #8 on:** October 06, 2009, 07:44:16 PM »

Nope Im high off working on f20 madness build, 60 cent energy drinks and Panda express

Joseph Davis · « **Reply #9 on:** October 06, 2009, 08:21:41 PM »

There's a super rare ZC IM that fits a B-series TB. Made me giggle when I saw it.

chris · « **Reply #10 on:** October 06, 2009, 08:42:19 PM »

Quote from: Joseph Davis on October 06, 2009, 08:21:41 PM

There's a super rare ZC IM that fits a B-series TB. Made me giggle when I saw it.

Yup for one year 1992 the last year they made the dohc zc. Those motors are damn near impossible to find since it was for the Honda civic 25th anniversary and made for only 1 year in japan atleast.

The black top zc the one this adapters is built around was thrown in everything hence why importers where bring them over by the 100's

Joseph Davis · « **Reply #11 on:** October 06, 2009, 08:43:57 PM »

Yah, a local dude has one on the D16A1 in his turbo 1G CRX roadrace car. He spends a lot of money because he likes nice stuff, but he won't say how much he paid to get it. He just shakes his head and says you have no idea how hard it was to find.

chris · « **Reply #12 on:** October 07, 2009, 05:30:51 PM »

dohc d series=awesome

klyph · « **Reply #13 on:** October 07, 2009, 06:30:18 PM »

So this allows you to use an aftermarket throttle body, or is it for a ported stock TB? It looks like aftermarket, but you weren't very clear, and I'm very retarded.

chris · « **Reply #14 on:** October 07, 2009, 06:47:51 PM »

Inlet is 70mm

This will allow for any size b series/aftermarket throttle body up to that size . This is obviously based on the backside or plate side of the throttle body

So yes you could run a stock b series throttle body or anything up to 70mm plate based throttle bodies

88dx · « **Reply #15 on:** October 07, 2009, 11:07:41 PM »

Dose this fit a S-10

chris · « **Reply #16 on:** October 08, 2009, 12:29:43 AM »

Quote from: 88dx on October 07, 2009, 11:07:41 PM

Dose this fit a S-10

yes

chris · « **Reply #17 on:** October 08, 2009, 07:33:58 AM »

20 year old chico state slut totally digged the zc spacer.

chris · « **Reply #18 on:** October 09, 2009, 05:25:30 AM »

Worked tonight on a dohc zc manifold for one of my own builds. The zc will not die.

extensioncordy · « **Reply #19 on:** October 09, 2009, 07:52:55 PM »

Quote from: chris M on October 06, 2009, 07:44:16 PM

Nope Im high off working on f20 madness build, 60 cent energy drinks and Panda express

circle k polar pops go ape?

chris · « **Reply #20 on:** October 17, 2009, 02:14:31 PM »

New pics coming with freshly bead blasted jdm dohc zc manifold port matched to the new adapter :yes:

Im dreaming of a 400 whp d16a1 in my 86 crx.

90turboteg · « **Reply #21 on:** October 17, 2009, 03:19:53 PM »

dammit, i was shooting for 400+whp in my 86 crx too. whats your setup gonna be? my setups getting close to being done, already has the d16a1 with zc head and a few other things, with a 75 shot i ended up getting a 13.0@108 only ran it twice this season, the drag radials are a little small. motor only has 8k since i rebuilt it with arp goodies and put a obx lsd in the cg trans.

with the motor only having 8k im taring it down for forged internals and some valve train upgrades. do you carry 70mm throttle body's? im deff interested in getting this adapter from you, then maybe one day i will get off my ass and finish the intake manifold i was fabing for it

got any pics of urs?

chris · « **Reply #22 on:** October 17, 2009, 03:28:17 PM »

Yes I sell 70mm throttle bodies. I also have a 74mm tapered units also

Check the for sale section of the site its all there.

90turboteg · « **Reply #23 on:** October 17, 2009, 04:02:49 PM »

ok, should work well. thanks nog

chris · « **Reply #24 on:** October 17, 2009, 06:02:43 PM »

I have a f20b crx Im finishing for next season and I still have my 84mm b16a turbo motor for my drag car so the d16a1 build is pretty far back on the burner but plans are

d16a1 swap. Got a parts car like 6 months ago kept the drivetrain.
modified ls rods
vitara pistons
ungodly amount of port work on the head. The d16a1/dohc zc heads is in an era when Honda left tons of material in the heads so you can spend days porting these bastards. Its a porters dream. Ported heads on these motors are not uncommon to make 20+ whp on motor.
ported dohc zc intake manifold obdo
pbtuning spacer/adapter
74mm throttle body
Clutchmasters stage 5 clutch(I bought that awhile back just to have it)
Most likely send off a set of cams to delta.

How did the obx install go in the cg transmission?

Pics of the car its your typical ugly black 1st gen crx but straight body. Got it for 250 bucks wouldnt pass smog.

88dx · « **Reply #25 on:** October 17, 2009, 06:57:20 PM »

Quote from: chris M on October 17, 2009, 06:02:43 PM

Got it for 250 bucks wouldnt pass smog.

Whats this smog that your always talking about

90turboteg · « **Reply #26 on:** October 17, 2009, 07:35:27 PM »

the diff went right in, just had to buy the shims, and the imput shaft barings always go out on the cg trans so replace it lol. i used a 2000 si b16 obx and didnt have to modify anything.. id like to send my head to jg or somthing to get some porting but im not 100% sure what im gona do there, but id like it to be flow benched. and bigger valves should help alot.

my setup consists of

homemade miniram
tial 38mm wg
60-1 garret with s cover and 63. exhaust
3"dp and custom exhaust
ebay fmic
inline walbro pump since its not intank
rc750cc peak and holds
get your tb and adaptor maybe get you to port my intake manifold if you do that
cp forged 75mm pistons
eagle h beams
it already has arp head studs, new wp,t belt, 6 puck unsprung clutch

and a few nick nacks id deff recommend filling the mounts in your crx, myn are fucked
now all i have to do is track down a obd1 dizzy that will fit and wire it up and make a conv harness. wire it all up, its vac advance right now, it was carb'd when i got it and i got the car it pretty good shape factory red for 100 bucks. there awsome cars, i have tokico illiumina struts and shity springs in the back, looking to get some 1000 pound rears for the track and some bigger torsion bars for the front.

hoping to get my car all done and oczc by next track season know of any dizzys ? nothing around here $:-\$

88dx · « **Reply #27 on:** October 17, 2009, 07:39:27 PM »

Quote from: 90turboteg on October 17, 2009, 07:35:27 PM

the diff went right in, just had to buy the shims, and the imput shaft barings always go out on the cg trans so replace it lol. i used a 2000 si b16 obx and didnt have to modify anything.. id like to send my head to jg or somthing to get some porting but im not 100% sure what im gona do there, but id like it to be flow benched. and bigger valves should help alot.

my setup consists of

homemade miniram
tial 38mm wg
60-1 garret with s cover and 63. exhaust
3"dp and custom exhaust
ebay fmic
inline walbro pump since its not intank
rc750cc peak and holds
get your tb and adaptor maybe get you to port my intake manifold if you do that
cp forged 75mm pistons
eagle h beams
it already has arp head studs, new wp,t belt, 6 puck unsprung clutch

and a few nick nacks id deff recommend filling the mounts in your crx, myn are fucked
now all i have to do is track down a obd1 dizzy that will fit and wire it up and make a conv harness. wire it all up, its vac advance right now, it was carb'd when i got it and i got the car it pretty good shape factory red for 100 bucks. there awsome cars, i have tokico illiumina struts and shity springs in the back, looking to get some 1000 pound rears for the track and some bigger torsion bars for the front.

hoping to get my car all done and oczc by next track season know of any dizzys ? nothing around here $:-\$

And none of this will ever happen

90turboteg · « **Reply #28 on:** October 17, 2009, 07:44:45 PM »

well i have more than half of it, and i will prob get it done before your hatch ever runs

88dx · « **Reply #29 on:** October 17, 2009, 07:45:42 PM »

Quote from: 90turboteg on October 17, 2009, 07:44:45 PM

well i have more than half of it, and i will prob get it done before your hatch ever runs

nope

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Author Topic: Dohc Zc/D16a1 Fans. New Throttle Body adapter/Spacer (Read 23338 times)

chris

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