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93 celica
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maybe i thought wrong but i thought all b-series TBs should bolt on to d-series IMs. i got a TB off of ebay and i am uder the impression that it is an 91 integra TB can somebody look at it and tell whether or not i got what i paid for and why it's not bolting up?



 

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93 celica
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323 Posts
Discussion Starter #3
this is the description directly from the seller on ebay..... "Description
Up for auction is a 93 INTEGRA LS THROTTLE BODY WITH TPS.IN GOOD CONDITION Will fit any 88-91 civic AND 90-93 INTEGRA 2dr,3dr(hb) AND 4 DOOR MODEL.Any questions feel free to ask thanks.Happy bidding.Look at my other auctions for more civic parts."
 

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i think it wont bolt up cause its a d15z1 or hf manifold... go get a d15b7 or d16z6 manifold
z6 mani ftw add a 94+ integra TB... i bought a y8 mani then reasearched and the z6 seems to be the better choice. i'm sending to maxxbore to be matched at 64 mm a little costly but worth it imo :noway:
 

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91 CRX Si
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To use a B series TB(which you bought), you need a 92'+ D-series IM... Either from a D15B7, D16Z6, D16Y8, or JDM D15B... 91' and older D-series IM's have a different bolt pattern than B series IM's.
 

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The H Badge is it!
91 crx
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... btw that old manifold you had will not perform. id be surprised if you could fit 2 fingers in the ports.

you should get a picture of the 2 manifolds next to each other, and u will see what we are talking about.
 

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ex-g (canadian)
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624 Posts
from knology.net/~jediklc

Honda/Acura Throttle Body Inside Diameters (in mm)

B18C1 60
B18C5 62
B18A 58
B18B 60
B16A SiR 58
B16A SiR2 / B16A2/ B16A3 /B16B 60
B17A1 60
B20B/Z 60
F20C 62

D15B7 56
D16A6 55
D16Y7 56
D16Y8 56
D16Z6 56
D16A1 55
D16A8 55
ZC 55
D15Z1 (different bolt pattern) 40

H22A / H23A 60
F22/ F23 60


Note: Most Honda Throttle Bodies are tapered and the outside diameter is larger than the inside diameter.

ITR/S2K/RSX-S are 62mm



so in the end... you should just find a d16z6 intake manifold cause the one you have is too restrictive, if you have a b18b tb its the same diameter as the sir... unless you have a b18a which is 2mm less...
 
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