well i have a 91 civic std with a 4 speed and also dual point. the motor is all stock. i bought it like 2 months ago and im sick and tired of its lack of power. well i was wondering what can i do to make it faster will any bolt ons make any difference? and everyone has been telling me to put a swap but i dont have the money or free space to do it. plus i want to stay with the stock engine and tranny. plus im not that big of a fan of the b series. well thanks for your time for reading this.

 

pull the first butterfly valve out of the intake. take the black cap off and youll see it. that is what gives it the 60HP limit it has, take it out and it gets the 80 or 90 or what ever it is the B2 engines get. swap to a 5 speed tranny. they are all over the place, but if you find a Si tranny, youll have good short gears

 

Well, that's a blatant lie.

It's the cam profile and ecu that holds the power back from the 92 the b2 motor has.

Since the OP said he did not want to swap transmissions the great idea of swapping trans you brought up is pointless.

OP, MPFI swap search it. Really other then that don't bother it's pointless if you want to keep that 4spd.

 

so its the black cap? i just remove the 4 screws in has? and its the 1st butterfly. do you know what color is it?

 

so if i do the MPFI swap it will eventually give me more power right. but what does the 4 speed has that it sucks. because at 1st when i got it i didnt like it but now im getting to like it. would a 4-1 header and a intake make any difference?

 

The 4spd is basically an HF trans (super long gears for milage) with no 5th. You need aggressive gearing in a car like this to do much of anything.

Yes an MPFI swap will make a noticeable difference for around 200 USD. Also will help any other work respond better.

What kinda of money are you willing to spend and how fast are you looking at going? If you just want enough power to not be scared passing, the MPFI might be enough for you.

Worry about a header at a later date.

 

well im willing to spend like about 300 for right know. and i use my ef just for my daily driver, thats why im digging the 4 speed. and for the MPFI from what year does it have to be from? doest it have to be from a ef or the one that the eg's has would work the same?

 

Yes you'll need to use mostly parts from a 4th gen civic.

For 300 you can pull off an MPFI and an intake maybe a y8 intake manifold if you get lucky parts shopping.

Hit the FAQs and search for exactly what's needed for the MPFI, not trying to be mean it's just there is all the info and photo rich how tos to help you.

Good luck.

 

lie? no, took that out on my crx i had for a short while. THERES A DIFFERNCE! Even on pgmfi.org people talk about it with dyno sheets to prove it. i got MY facts straight. get YOURS straight

and i dont care if he said he didnt want to, i was just giving an opinion on what he could do for cheep. d-series trans are dime a dozen. junkyards have millions, i have one, i got a friend who has 2 (DCRB)...think i care? no, as "blatant" as that

 

Link it or you're a lying sack of crap. You're seriously trying to tell us theres 30 hp in a screen??? But hey, kids bought the e-supercharger too, so i guess its cut from the same ilk.

 

Thank for all your help and advice. but i have one more question. how do you know its a y8 manifold or that the manifold is from a 4th den civic?

 

LOL, ok there bright guy, lets see your proof of 30 wheel horse power from removing a dust filter on a b1.

Also since you claim I'm lying prove the cams and ecu program are the same.

While maybe you can see 2-3 HP from pulling that screen, a dyno will vary run to run anyway so that's a moot point.

You claim you don't care what he wants so you just order him around on what he should do? Wow, that's helpful. He isn't wanting to change those things so you have to either not post, or post something that will help him.

It's the middle of 09, and 07s ares still worthless *****.

 

screen? no, where did i say screen? i said VALVE

D15b1 and D15b2 have a butterfly valve that is right AFTER the screen. 2 screws and its out, noticable as hell gain. ill search for it right now *** munch

 

well since its from you and i dont care, ill just keep posting random things to **** you off, sound good? and maybe ill get more pm's from mods telling me my posts are beind deleted. lolz

 

The parts numbers are listed on them, also just a quick photo reference to help you.

http://media.photobucket.com/image/d...1/DSC03471.jpg

and the y8 intake manifold
http://www.superhonda.com/photopost/.../medium/y8.JPG

I just linked them in incase your connection is slow.

You can use really any D manifold, but if you look for a MPFI swap it'll have a a6 in it since it's a needed part to have an MPFI style manifold. The y8 is something you can do during or later on it's a great part and will add a touch of power for cheap.

 

LOL if you notice that you must be really used to slow cars and don't take that damn thing out it'll cause you to run richer then you should even more so low end and around town. You know what the d15b1/2 were made to do.

Christ Honda people are get dumber and dumber.

 

thanks for the links and for all your help i really appreciate it. thanks!

 

My pleasure, we are here to help

 

i removed the butterfly on my 88 crx dx and it didnt do a damn thing. plus u risk the possibility of dropping screws into your engine. someone lives in dream land.....

 

hey ***$nyper sorry its me again i just went an c-list and found these two would they work?

http://chicago.craigslist.org/wcl/pts/1235714527.html


http://chicago.craigslist.org/wcl/pts/1235504093.html

 

Those will only be part of it, the y8 manifold runs a different OBD, and parts won't swap you want the manifold bare.

The rest of the MPFI stuff you can buy else where.
There is a for sale want to buy thread you can use, there is the whole market place as well.

For MPFI parts and a how to :https://honda-tech.com/forums/honda-crx-ef-civic-1988-1991-3/faq-mpfi-swap-information-639552/ If you need more hit up the FAQ sticky.

 

ok thanks again man. cheers!

 

Ha ha, I tried that removal of the first butterfly in the manifold. I really didnt feel much difference. It made the intake louder but it also made the idle a little shakey in the low rpm's. Not really worth it. A MPFI swap would be way better. Good luck and keep us poted.

 

actually taking that out makes you car run a little rich...it's needed in there to circulate the air entering that intake

 

OP, Listen to me, I have experience... here's what I did to my 91 std.

replaced cam with d15b2 cam (the engine was due for a timing belt, so I replaced the cam at the same time. the valves needed adjusting a couple times to get them right)
replaced ecu with d15b2 ecu (you need this to match the more "aggressive" cam)
replaced trans with DX trans (the original 4-spd was toast)

I stayed dual-point.

result: Butt dyno says it feels exactly like a DX. It gets high 30's to low 40's mpg. It idles and runs perfect, exactly like a stock DX. Power drops off as you rev it up, but going mpfi will help that. I highly doubt that going mpfi will help much unless you first replace that dinky-*** cam.

good luck