power gains for a d15b2 dpfi

[ponykillerh22]

here goes, I have a 90 crx with a d15b2 dpfi and I'm just simply trying to see what the easiest way to make the largest gains on power while STAYING dpfi. I just want to have a quick little d15 not to crazy but something to get its ass out of its own way. I wanna stay dpfi just for the fact that everyone does the dpfi to mpfi swap and I just wanna have something a little different. For example I've seen people do cam swaps out of a d15b7, but I'm not too sure of the sohc honda engines like what's what. So any advice at all would be awesome thanks

 

[89y49rexsi]

why would you want to swap in a cam from a vtec motor to a non vtec that would be pointless lol------------i would get a header intake and a decent size cam and get it tuned and it should help alot-----------i have the same motor in my 89 civic sedan and ive thought about boosting it just for shits and giggles i wanna whatch it go boom -----------especially since i have my b16 im waiting to swap in so that i can have more power until i build a new motor for it lol------------------------------------good luck man

 

[AHHVTEC]

here goes, I have a 90 crx with a d15b2 dpfi and I'm just simply trying to see what the easiest way to make the largest gains on power while STAYING dpfi. I just want to have a quick little d15 not to crazy but something to get its ass out of its own way. I wanna stay dpfi just for the fact that everyone does the dpfi to mpfi swap and I just wanna have something a little different. For example I've seen people do cam swaps out of a d15b7, but I'm not too sure of the sohc honda engines like what's what. So any advice at all would be awesome thanks

why would you want to swap in a cam from a vtec motor to a non vtec that would be pointless lol------------i would get a header intake and a decent size cam and get it tuned and it should help alot-----------i have the same motor in my 89 civic sedan and ive thought about boosting it just for shits and giggles i wanna whatch it go boom -----------especially since i have my b16 im waiting to swap in so that i can have more power until i build a new motor for it lol------------------------------------good luck man

the d15b7 is a non vtec motor.but theres not a lot you can do other than a custom cam and head work with the normal bolt ons. and even then i think unless you build the complete motor you will be wishing you had more power

 

[89y49rexsi]

sorry i get my d series mixed up sometimes lol------------but i agree just swap it out for either a bigger motor or a mpfi mani or you will always wish you had more

 

[ponykillerh22]

I never expect to get "fast" out of it, I had an h22a hatch and ill never feel anything like thatout of thisthis peeshooter. But I had a stock b16 in my first rex and it moved with 160 hp, so the way I'm thinkin is the d16y8 I believe (ignore the fact that its has vtec) is pushin 125-130 I believe, so the b16 and the d16y8 have a 30 hp difference I'm sure a rex would get out of its own way still with 130hp. Pretty much what I'm tryin to say is there any way to get 120-130 hp with out doin an dpfi to mpfi swap or a mini me. I'm not tryin to go nuts with the car I'm just tired of toyota prius blowin by me on the highway.

 

[buttered corn]

...turbo


...

 

[ponykillerh22]

I'm 1000% against turbos and plus I don't wanna go through the hassle of a turbo and spending that much. I think I'm gonna do the mpfi swap and get a d16a6 cam y8 cam gear and call it a day. I'm just lookin to go to a junkyard to get this crap, I don't want to waste money and time and work on something that's never gonna move unless u turbo the shit out of it. I just want this thing to keep up with traffic for now until I have more money to do a swap. The only thing I'm worried about with the d16a6 cam in the d15b2 is floating valves, and I don't know if there's a way to stop that from happening, maybe different valve springs, if any one has any advice on that one that would be awesome. I'm just tryin to save the sohcs.

 

[AHHVTEC]

just do your bolt ons and get a si tranny, and call it a day

 

[ponykillerh22]

If I did the the mpfi swap, what would I need? What manifold should I use? I know I have to get a I'M and the ecu that goes with the manifold, but what I'm not sure of is do I need the wiring harness for that manifold I'm guessing out of a crx si or can I make the on I have work? Not too sure if there's anything else. I was thinkin gettin all of this crap out of an si but if there's a better setup please fill me in, thanks.

 

[D15Beater]

If I did the the mpfi swap, what would I need? What manifold should I use? I know I have to get a I'M and the ecu that goes with the manifold, but what I'm not sure of is do I need the wiring harness for that manifold I'm guessing out of a crx si or can I make the on I have work? Not too sure if there's anything else. I was thinkin gettin all of this crap out of an si but if there's a better setup please fill me in, thanks.

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