hi, i am looking into an inexpensive method of gaining around 60-65 hp for my cx.
first, i would like to swap the d15b8 head and ecu with a d15b7 head and ecu, and i am curious if the ex manifold will work on the dx head, since the z6 head is vtec and b7 head is not, is everything the same on the intake side? and if not, then could i just use an ex TB? ...

i would also like to add aem fuel rail, im thinking 310 cc injectors, fuel pump(can i use 1 from the teggie?), higher capacity wires, aem-style long cold air intake, p06 ecu with a dx chip from auto-motivo (ebay)
aem adjustable cam gear, header, rammed cat, cat back(they make full exaust kits and have them on ebay for like 200 with header, cat, and cat back/muffler), new timing belt, lightwieght underdrive pully, ngk or bosch coppers, ex transmission(im assuming and hoping the ex tranny from the z6 will fit with the b8 block), short shifter.

So, we have:

d15b7 head (port and polish?)
d15b7 P06 ecu performance chipped for non-vtec
d16z6 intake manifold(will it work?)
if not, then:
d16z6 throttle body(should fit the b7 intake manifold)
AEM adjustable cam gear
AEM style long cold air intake
steel mesh style or K&N cone filter
higher capacity plug wires
ngk or bosch copper plugs
aftermarket ignition system(such as msd)
310cc injectors
new distributor
new timing belt
new piston rings
new connecting rods(aftermarket)
new stock pistons
new stock crankshaft(should that matter?)
new oil pan modded with baffles
new axles
new quality headgasket
new valve cover gasket
new crank seals?
new rod bearings?
new main bearings?
new stock axles
new cooling system hoses
aluminum "racing" radiator
audi 85-89 4000cs quattro radiator fan(very high powered!!)
mod to fit radiator
remove a/c system
AEM lightwieght underdrive pully
ex/si transmission
exedy or aftermarket stage 1 clutch and 8.5 lb flywheel kit
short shifter
drilled and slotted rotors and performance pads for the front

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things i am also not certain about: where is the ignition coil on the stock setup? shouldent i be able to add an ignition system?

how do i create a more aggressive timing with the dx dizzy; can it be advanced like normal on other vehicles?

are 310cc injectors too much? what are the stock d16z6 injectors? will they work?

can i use a fuel pump from an integra?

shouldent i be able to use new stock pistons?

i believe that since the d15b8 has toothpick rods, but decent pistons for light applications(same as dx) i should be able to make a decent team with aftermarket rods and stock pistons. am i wrong?

if im going to be on the bottom end, should i go ahead and replace the bearings(main and rod) while im down there? and the seals?

ive noticed that the d15b8 engines produce an unusual amount of tourqe, in hp-tq ratios. compared to the hp-tq ratios of the 1.6 engines, where there is less tq. in the case of the 15's, i think the cx has maybe more than the dx does, although i could be wrong, but i havent heard the same touqe claims from any dx yet, so far its just been the cx. so, if this is right, wouldnt it be smarter to go with the block with more touqe? instead of just swapping in a 150$ d15b7?

the chipped P06 seems like a good idear. any maf sensors to worry about? if im not mistaken, everything is taken care of @ the throttle body, and in this case, would i be able to use an air/fuel controller?

(an a/f controller for a dx head lol)

i wouldnt be working with that great of a range, but at least ill be in control of the mixture from the cockpit...that is the goal.

will the ex tranny fit to the b8 block? its rumored to...actually, its rumored that theyre all interchangeable between 15's and 16's.

in this case, couldent i use an old si tranny from an 88-91 si civic or crx?

those d engines seem to be different than the multi point d engines, as i belive they were single point fi, and i dont know if there is anything different about the blocks so...

is there anything else reasonable i could do to the engine while still keeping it simple? and not "over-building" as to turn it into " a museum peice that everyone will question the logic of" ??

well, im thinking that with the aforementioned mods, i should have a nice strong engine that will last. i have a feeling that this may produce more than i expected, with new pistons, rings, etc. so the compression should be aight.

i am curious if i should port & polish the head, if it will make that much difference?

will it be okay to turn a lightwieght set of motegi 16's?

i would be happy enough to keep up with my freinds 83 celica gt-s. its packin a 22re engine, and a modded intake & ignition and my cx is no match for that thing. besides, we only run on mountain backroads late @ night, so im not at all interested in drag racing. it ceases to be an important part of the mission when your slamming through curves. i just need enough power to take the hills and accelerate more quickly from the turns. i think this engine setup paired with 2" lowered coilovers, lower tie bars and camber correction kit shall wield better results. i would like to keep my engine wieght light, for power to wieght, vehichle wieght balance, and handling reasons. if i put a heavier b series in there, its better displacement, but then ill have to spend a decent amount of money on a suspension setup to deal with that wieght difference, plus the car will handle slightly different. after hours of "blasting" through the curves up on the flat parts, i can feel how light that little engine is up front, and id like to keep it that way. my goal is to eventually save and get a jdm d15b vtec and build the everloving shit out of it, and throw about 8 -10 psi to it. it would be a venomous sick little engine, and i think i could get 170 out of it. displacement would be an issue, so i could only fully enjoy it with no passenger i suppose. but for now, financially, i must go the long slow route. im hoping to have this finished by spring of next year. my hp goal with this engine setup is 130-135, about that of a stock b18b ...

anyone with any help i would greatly appreciate it :]