how big is the y8 trottle body? is it as big as the b16a one? 60mm?
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Joined: May 2002
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From: Monterey Park/Huntington Beach, CA, USA
what topic says. would it be worth it to put on a b16a tb onto a y8 manifold?
I believe the Y8 throttle body is 56mm which is a couple mm smaller than the 1st gen B16A's. If the B16 T/B is available for a good price, I'd do it.
Honda Throttle Body Sizing Chart
By: tortex (tortexal@yahoo.com)
Honda/Acura Throttle Body Inside Diameters (in mm)
b18c1 60
b18c spec R 62
b18a 58
b18b 60
b16a SiR 58
b16a Sir2 / b16a2 60
b16a3 58
b20b/z 60
f20c 62
d15b7 56
d16a6 55
d16y7 56
d16y8 56
d16z6 56
ZC 55
d16a1 55
d16a8 55
h22a / h23a 60
f22 / f23 60
By: tortex (tortexal@yahoo.com)
Honda/Acura Throttle Body Inside Diameters (in mm)
b18c1 60
b18c spec R 62
b18a 58
b18b 60
b16a SiR 58
b16a Sir2 / b16a2 60
b16a3 58
b20b/z 60
f20c 62
d15b7 56
d16a6 55
d16y7 56
d16y8 56
d16z6 56
ZC 55
d16a1 55
d16a8 55
h22a / h23a 60
f22 / f23 60
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 91hatchcivic »</TD></TR><TR><TD CLASS="quote">so is it possible to put the type r tb on a single cam?</TD></TR></TABLE>
Yes, except for D16A6 intake manifolds, the bolt pattern is different.
Yes, except for D16A6 intake manifolds, the bolt pattern is different.
Thread Starter
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From: Monterey Park/Huntington Beach, CA, USA
now i have another question. i was just holding up the b16a TB and looking at the y8 TB. there seem to be 1 more sensor on the y8. anybody here has done one? can i see some picture? i was wondering where would that sensor go on a b16a tb.


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Honda-Tech Member
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From: the asshole of america..., upstate new york, USA
thats the MAP sensor. the civic/crx is firewall mounted with a vacuum line from the MAP to the TB.
EDIT... damn 96-EJ6 B18C, you beat me by a few seconds!
EDIT... damn 96-EJ6 B18C, you beat me by a few seconds!
Thread Starter
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From: Monterey Park/Huntington Beach, CA, USA
so if i take that map sensor off of the y8 tb..where do i mount it to? on the firewall? can i see some pictures if anyone has any? so how will i be doing this if i put on the b16a tb?
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From: Monterey Park/Huntington Beach, CA, USA
extend it to where? i dont care where its at..i just wanna know where it should go.
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From: the asshole of america..., upstate new york, USA
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by crashtest Sonny »</TD></TR><TR><TD CLASS="quote">extend it to where? i dont care where its at..i just wanna know where it should go.</TD></TR></TABLE>
if the MAP is currently on the firewall...extend those wires to plug into the TB mounted MAP. in the picture you posted it looks as if you already have the wires extended for the Y8 TB.
im assuming you want to use the B16A TB that doesnt have the MAP mounted on it. if this is true then you will have to 1.) reinstall the factory (firewall mounted) MAP and run a vacuum line from it to the TB...look at the vacuum diagram under you hood if its still there. or 2.) install the TB mounted MAP from the Y8 onto the B16A TB...which may or may not be possible, as ive never tried it.
im using a 90-91 B18A1 TB (58mm) on my Y8 manifold. this TB uses the firewall mounted MAP just like the stock civic/crx TB. so all i had to do was run the vacuum line from the TB to the MAP just like stock.
i also have an extra B18A1 TB for sale if anyone is interested in a similar setup.
if the MAP is currently on the firewall...extend those wires to plug into the TB mounted MAP. in the picture you posted it looks as if you already have the wires extended for the Y8 TB.
im assuming you want to use the B16A TB that doesnt have the MAP mounted on it. if this is true then you will have to 1.) reinstall the factory (firewall mounted) MAP and run a vacuum line from it to the TB...look at the vacuum diagram under you hood if its still there. or 2.) install the TB mounted MAP from the Y8 onto the B16A TB...which may or may not be possible, as ive never tried it.
im using a 90-91 B18A1 TB (58mm) on my Y8 manifold. this TB uses the firewall mounted MAP just like the stock civic/crx TB. so all i had to do was run the vacuum line from the TB to the MAP just like stock.
i also have an extra B18A1 TB for sale if anyone is interested in a similar setup.
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From: the asshole of america..., upstate new york, USA
here...this is how mine is hooked up. if you can tell from the pic.
Thread Starter
Joined: May 2002
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From: Monterey Park/Huntington Beach, CA, USA
ok im scrolling up and down looking at my engine bay and looking at yours. i see that your vacuum line is going to the TB which i know i need to do. but what about that plug/sensor i circled..where should that go? do i just cut off that wire? i couldnt find it in your bay. sorry.
EDIT: ok nm i think i see it!! damn im stupid!!
EDIT: ok nm i think i see it!! damn im stupid!!
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by shiznattik »</TD></TR><TR><TD CLASS="quote">Honda Throttle Body Sizing Chart
By: tortex (tortexal@yahoo.com)
Honda/Acura Throttle Body Inside Diameters (in mm)
b18c1 60
b18c spec R 62
b18a 58
b18b 60
b16a SiR 58
b16a Sir2 / b16a2 60
b16a3 58
b20b/z 60
f20c 62
d15b7 56
d16a6 55
d16y7 56
d16y8 56
d16z6 56
ZC 55
d16a1 55
d16a8 55
h22a / h23a 60
f22 / f23 60
</TD></TR></TABLE>
you forgot the HF throttle body, its like 25mm
Honda-Tech Member
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From: the asshole of america..., upstate new york, USA
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by crashtest Sonny »</TD></TR><TR><TD CLASS="quote">but what about that plug/sensor i circled..where should that go? do i just cut off that wire? i couldnt find it in your bay. sorry. </TD></TR></TABLE>
the sensor you circled is the MAP on the Y8 TB.
since the B16 TB doesnt have a MAP on it you you will use the stock firewall mounted MAP. run a vacuum line from the B16 TB to the firewall mounted MAP...also the wiring that is currently running to the Y8 TB MAP just needs to be plugged into the firewall mounted MAP. make sense?
the sensor you circled is the MAP on the Y8 TB.
since the B16 TB doesnt have a MAP on it you you will use the stock firewall mounted MAP. run a vacuum line from the B16 TB to the firewall mounted MAP...also the wiring that is currently running to the Y8 TB MAP just needs to be plugged into the firewall mounted MAP. make sense?
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by yebabee »</TD></TR><TR><TD CLASS="quote">
you forgot the HF throttle body, its like 25mm
</TD></TR></TABLE>
Also forgot the B17a TB. Anyone happen to have the size off hand? I'm too lazy to go measure.
you forgot the HF throttle body, its like 25mm
</TD></TR></TABLE>Also forgot the B17a TB. Anyone happen to have the size off hand? I'm too lazy to go measure.
Bump for really good information that I was looking for. Thx man.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by whizdumb »</TD></TR><TR><TD CLASS="quote">Honda Throttle Body Sizing Chart
By: tortex (tortexal@yahoo.com)
Honda/Acura Throttle Body Inside Diameters (in mm)
b18c1 60
b18c spec R 62
b18a 58
b18b 60
b16a SiR 58
b16a Sir2 / b16a2 60
b16a3 58
b20b/z 60
f20c 62
d15b7 56
d16a6 55
d16y7 56
d16y8 56
d16z6 56
ZC 55
d16a1 55
d16a8 55
h22a / h23a 60
f22 / f23 60
</TD></TR></TABLE>
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by whizdumb »</TD></TR><TR><TD CLASS="quote">Honda Throttle Body Sizing Chart
By: tortex (tortexal@yahoo.com)
Honda/Acura Throttle Body Inside Diameters (in mm)
b18c1 60
b18c spec R 62
b18a 58
b18b 60
b16a SiR 58
b16a Sir2 / b16a2 60
b16a3 58
b20b/z 60
f20c 62
d15b7 56
d16a6 55
d16y7 56
d16y8 56
d16z6 56
ZC 55
d16a1 55
d16a8 55
h22a / h23a 60
f22 / f23 60
</TD></TR></TABLE>
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