I am going to pick up a 91 crx from a friend that wants to get rid of it. He said that the motor is blown but everything else is fine. I was just wondering if you guys could help me out and let me know which motors will directly bolt into the crx without having to swap out the tranny and all that other stuff. Also...... I want to build the motor for nitrous because I already have a turbo car and would like to have both..... so any information on which motor parts to use to build the motor would be appreciated. Thanks for the help.

 

search, there are many

 

I will search...... but some fresh input would be appreciated. Thanks.

 

it depends on if its multi point or dual point. if multi then you can swap any d-series engine with multi point fuel injection (4 fuel injectors). A D16a6 or a ZC would be a direct bolt in. If its a dual point then convert cause there is no good reason to keep a dual point.

 

any d-series motor will bolt in if its a si or hf you wont have to worry about the mpfi swap. but if its a dx you have to do the whole mpfi swap first. but if its a si or hf then you can a d16a6 ,sohc zc non vtec, and dohc zc those fit right in no modification to anything. if going d16z6 or d16y8 then you have to convert to the that motors obd either obd 1 for the d16z6 or obd2 for the y8. but other than that they bolt in the wiring is a whole new story.

 

So the D15b sohc vtec would bolt in then? By the way it is a 91si.

 

yes it will fit its just the jdm version of the d16z6 as a 1.5 liter. keep your si tranny it bolts up also.

 

The D16A6 bolts right in.

 

And where can I find this d16a6? Thanks. The D15b is looking kinda good right now. Is there anything else that I would need for the D15b to fit right in? Sorry if I seem like Im asking the same questions...... I just want to make sure. Thanks.

 

if you have an si it comes standard with a d16a6 why you wanna go d15b vtec. you would have to convert to obd1. and with a d16a6 or dohc or sohc zc it just bolts and plugs right in nothing else to do

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by stock00civic &raquo;</TD></TR><TR><TD CLASS="quote">where can I find this d16a6?</TD></TR></TABLE>
'88-91 CRX Si
'88-91 Civic Wagon RT4WD
'89-91 Civic Si
'90-91 Civic EX

 

open your hood should be a d16a6 in there lmao.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 661rex89si &raquo;</TD></TR><TR><TD CLASS="quote">open your hood should be a d16a6 in there lmao.</TD></TR></TABLE>

Original post says that the motor is blown and he dosen't even own the car yet

 

**** d16a6 are available all the time in our classifieds and you can hit up hmotorsonline.com and get a dohc or sohc zc whats the problems here its not a hard swap to do. search

 

ok smart guy i get it lol

 

Yea I think that the DOHC ZC is what Im looking for. Can I get aftermarket cams or other internals to build this motor? I wanna run spray on the motor and want to make sure that it can handle a decent amount of spray. Thanks again for the info.

 

goood luck finding **** to build the motor, theres allways regrinds for the cams otherwise i think you may be sol on the dohc

 

dohc zc motors dont make a lot of aftermarket parts. i cant imagine a zc motor being able to take more than 50 or a 75 shot with stock internals

 

i dont know, they seem to love boost

 

single cams do to

 

So if I wanted to make a decent nitrous car out of it which motor would you guys recommend?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by stock00civic &raquo;</TD></TR><TR><TD CLASS="quote">So if I wanted to make a decent nitrous car out of it which motor would you guys recommend? </TD></TR></TABLE>
A built one.

 

Yes yes i know......just trying to decide which d series would be best. dohc or sohc.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by stock00civic &raquo;</TD></TR><TR><TD CLASS="quote">Yes yes i know......just trying to decide which d series would be best. dohc or sohc.</TD></TR></TABLE>
It doesn't particularly matter with the D-series. Both SOHC and DOHC models are limited by the bottom end, not by the valvetrain configuration. Get whatever is cheaper and/or has fewer miles.

 

Is there anything I can do to beef up the bottom end?