can i swap a 89 honda civic 1.5 motor into a 91 honda crx hf. and what will i need to make it run.and i have a honda crx si head can it fit on a 1.5 and do i need to have it milled down to fit.

 

just use the hf manifold

 

you can use the Si head and manifold. but youre going to need to change your spindles to DX or Si. Youll be fine because i have a 1.5 with a 1.6 head and manifold in my car

BTW: I have 1991 CRX Si rear disc brake set up for sale...$150

 

will i need the ecu for the si head ?or the 89 civic motor?

 

get 88-91 dx or Si ecu or if you want to rrev high use 88-89 INtegra LS ecu (pg7)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CivicHatchSOHC &raquo;</TD></TR><TR><TD CLASS="quote">get 88-91 dx or Si ecu or if you want to rrev high use 88-89 INtegra LS ecu (pg7)</TD></TR></TABLE>

cannot use DX DPFI ECU with MPFI engine - i don't understand why you would need to change spindles if he keeps HF axles

 

so it doesn't have to be from that motor just from that years?

 

but did u need to have it milled down to fit or did it fit just likeit is?

 

couple of questions - is the Civic engine from a DX or STD? you have Si head, do you have Si intake manifold?

 

yes i have the si intake manifold and the wiring

 

yeah sorry about the thing about the DX ECU. Use Si ECU or 88-89 LS ECU. You use the Si head, wiring,. You cant use HF Spindles. you need DX or Si spindles

 

what if i use the hf intake do i have to change the ecu? and will it fit and what spindles?

 

Change the manifold on the dx motor to the hf manifold and drop it in with ALL the stock components(ecu,wiring,injectors,ect).As for changing the spindles,dont know what that guy is talking about,just use ur stock axles and ur fine.

 

i have a d15b2 block witha shaved si head that i ported an polished 91 teg tb that was polished to hell an a si intake mani, an a dx tranny. It screams for a lil 1.5

 

can i put the hf intake on the si head and will it work.like use the hf injectors and fuel rail and everything else?

 

might be a different bolt pattern