i got a h22 t/b on my b16 and i need to know the mm size of the b16 and the h22
peace

 

If you have the H22 tb, why dont you measure it and tell us? Just a thought.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 88 rex &raquo;</TD></TR><TR><TD CLASS="quote">If you have the H22 tb, why dont you measure it and tell us? Just a thought.</TD></TR></TABLE>

yes sir. I second that. Why do you have an h22 tb when you could get a type r which is bigger?

 

H22a is 60mm, can be bored to 64 max
ITR is 62 but tends to sell for a lot more than the 2mm extra suggests it's worth.

 

H22 bolts on huh? interesting. You could have went with the GSR or USDM B16A2 60mm TB which can be bored to 64mm and obtained cheaply. That's what I'm doing. ITR throttlebodies are going for quite a bit more and aren't really worth it, IMO. Especially when you can bore a cheaper one bigger than the ITR and still come out spending less than the ITR TB. The JDM 1st Gen B16 has a 58mm butterfly.

 

Yeah it bolts up fine, you may have to alter vacuum lines. GS-R and B16a2 are 60mm too like you said, and generally 4mm max depending on the quality of service.

 

yeah the 2 mm isnt worth the $100 the damn thing sells for. I bought one and sold 2 days later but hey I made money of it

 

out of curiosity, does the throttle body swap really make that big of a difference? if so whats a good TB upgrade for a 92 civic cx? (i know i know its in the wrong forum but its not for me its for my friend and he used up all his posts-n00b).

 

not really good unless you need it. what i mean is is there an aftermarket intake mani? wouldnt really do any good with out it and on a st0ck d15?

 

H22 throttle body bolts up fine and has the same bore size as a stock B16 throttle body. However, it's the bore is thicker so there's a lot more material that you can shave away and get it up to around 68mm no problem if you really wanted to, where as on a stock B16 throttle body, 62-64mm is about as high as you can go. Otherwise if you leave it stock on your motor, there is no difference in performance.

 

You'll notice a nice increase in throttle response whith the bigger tb, but not a big difference in hp.