heres some info i colected. havent ever seen it in a centralized place so here you go:
http://www.hondaswap.com/articles/viewer.php?id=51

edit: DOH! you have to make an account at hondaswap.com to view it aparently. its free. my listing is under the "latest tech articles" section



[Modified by TorteX, 10:31 AM 12/6/2002]

 

heres the jist if you dont want to make an account: all sizes are inside diameter
b18c1 60
b18c spec R 62
b18a 58
b18b 60
b16a SiR 58
b16a Sir2 / b16a2 / b16a3 60
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

dpfi d15b1 and d15b2 have to be added havent had time to measure them.


[Modified by TorteX, 10:33 AM 12/6/2002]

 

this should be in the tech section but im biased towards 4th gen owners

 

doh i threw away my dpfi d15b1 manifold

 

How big can you go with the D16A6?

 

Will the B18b TB (60mm) swap over to the 1g B16a? What mods are needed if any? Is the MAP sensor on the B18b TB like the B16a2? I know where theres one I can get. Thats the only reason I ask.
Thanks for the info.

 

if you swap on a 92+ d series intake manifold you can use any b series tbody. you can go as big as possible but you will lose velocity of air and decrease performance. i wouldnt go any higher than a 58mm on a a6

 

yes to all. no mods required cept extend the map sensor connector from the stock location to the tbodies map sensor.

 

The H22a that i had measured 62mm, but all the h23s ive seen measured 60mm, maybe those need separated and corrected.

 

I have a machinist taking a spare TB that I had and is going to work it a bit for me... .001" over stock, and losing the cone shaped intake walls; it's going to be the same size down the body, with new blade and reworked TB shaft. I know I'm going to lose air velocity, but I'll have more air volume... is the trade off worth it?

I'll still keep my hands on the stock TB to T -n- T, so either way I'll be aight. Just curious.

 

Anyone know if a Z6 TB will fit on an A6 intake manifold???

 

great info. this should be at the top again to help others. one question, do i need anything from the stock TB like the tps or anything like that? or will my tps fit up to it (d16z6) thanks


[Modified by tek_civic, 12:36 PM 2/2/2003]

 

no it will not.

 

my d15b1 TB measures 42mm (that's with a cheap tape measure so +/- 1mm)


Now all we need is a definitive list of which TB's have the same bolt pattern, I guess I could check out part #'s of TB gaskets and see which engines use the same gasket. I was accually thinking about using an F22 TB on my D16A6, but someone told me that all F series, and all D series were the same size. Now that I know better, I no longer have access to that TB


[Modified by thumpu77, 3:13 PM 2/2/2003]

 

which side are you measuring from? the inlet side or the side going to the manifold (since its a slight taper)? cause i measured about 1mm bigger for both the b18a and the y8. but thats on the inlet side.

 

so if i swap a teg TB onto my d16 what will i need from the teg? MAP? tnx


[Modified by tek_civic, 9:02 PM 2/2/2003]

 

Ive still got my DPFI but can't pop my hood. (cable snapped)
Once I stop being lazy and brush all the snow off the rex I'll try to find out.