Slomo_civic

i have a dohc zc and im wondering what size throttle body it comes with. i dont have a dial caliper to measure it. And if i wanted to buy one, which motor should i get it for?

Slomo_civic

bump for an answer

Kryogen

55mm, same TB as the D16A6.

If you want bigger get a Pre-OBD B16 TB its 58mm and will bolt up to the Pre-obd intake manifold, but you must port match the intake to 58mm also.

Spaceballsthelunchbox

You cannot use any B series throttle body on a D16A6 manifold.
They do not bolt up. I can bore your Tb 4mm over the stock bore. I don't think there are aftermarket TBs for the D16A6 manifold. I could be wrong.

Kryogen

yeah you can, ALL pre-OBD sidedraft Intake manifolds on B & D motors, the TB's bolt up the same, have the same sensors (TPS) and will work.

90-91 Integra TB's work on a A6 and ZC
90-91 siR-I B16 TB's will work on A6 and ZC.

quote- (your sig)
"Post counts don't mean a thing if you don't know what you are talking about"

Spaceballsthelunchbox

You CANNOT put a B series Throttle body on an d16A6 manifold.

Only D16Z6 or newer will accept a B series TB.

This horse is dead.

BTW, I wrote that signature specifically for people like you.

jlicrx

correct - only TBs that fit DOHC ZC are D16A6 Si and D16A1 Integra - Gude has a Bullfrog TB for D16A6 - pretty nice piece

civicflow

yeah, listen to maxbore and check out his site, i've only heard good things about him

1point7db2

Yes from my experiences b series tb will only fit d16z6 and newer im. You can put a z6 manifold on a d16a6, but it wont fit on a dohc zc.

messeduprex

ok sorry if i jacked the thread what tb will fit a obd1 zc im? its a obd1 dohc zc

LoneStarCRX

maxbore.com