will an 87-89 intake manifold from an integra fit a d15 dpfi head on a std hatch? or will an 88-91 intake manifold, bolt right up to this head? also if it does fit i will have to do the dpfi conversion to mpfi can i use a 87-89 integra ecu or does it have to be a 88-91 crx/hatch si ecu?

also will a gen2 ls throttle body fit on a d16a6 intake manifold? what modifications are need if any?

 

Mmmm it should be be like a D16A8 or 9 or something like that. I'm going to say it should work but I'm not sure.

 

i always tossed around the idea of doing that, you should have no problem at all using either of the manifolds because they're both from other d-blocks, and i also don't see a problem with the ecu's. if i had the choice though i would use 88-91 si stuff because of the similarities.

 

you could also do an integra brake upgrade. cheep and good!

 

i was also thinking, the 2000 civic si came with the b16, will the mounts in that civic fit in a 4th gen? or a 5th gen? instead of buying hasport mounts or place racing mounts. and what about that shift linkage?

 

No the mounts for the 92+ Civics are very different from the 88-91 and will not work for sticking a B-series in a 4G.

 

what about the ls tb on the d16 intake manifold? will it fit and what modification do i have to do if any?

 

B-series parts don't work on D-series.

 

Bolt, probably. Work, probably not. The coolant passage will be different, and the ports probably won't match.
Yes, I am assuming you mean a D16A6 MPFI manifold.
To convert a 88-91 STD to Si spec (OBD-0) fuel injection, you must use the 88-91 Si ECU. The 88-89 PG7 Integra (OBD-0) and 90-91 PR4 Integra (OBD-0) ECUs would most likely run the engine to, but not as well as an actual Si ECU. The 86-87 PG7 Integra (pre-OBD) ECU is designed to run a completely different engine management system then all later MPFI systems, so those won't work.

 

Not true in this case. The LS tb will fit on the d16 intake manifold. Your best bet is to just buy one and see what needs to be done. There will be some modification required, but since I haven't done it, I can't tell you word for word.

Chris