So.. I had to bring my old D13b2 EG3 to the scrapyard and bought me a newer '95 DPFI D15b2. Now i've been thinking about swapping the DPFI to MPFI. But i'm actually wondering what the pro's and con's are.

So here are my questions:

1. What are the pro's of a DPFI->MPFI swap?
2. Are there any con's (apart from time and money it takes)?
3. Why were there different (DPFI and MPFI) models?
4. Does it really help me to get MPFI?
5. What kind of power gain do i get out of a MPFI swap?

Also i have to replace the head gasket. So i have to take the engine apart for a good maintenance anyway. i have some questions about this as well:

1. What parts should i check while replacing the head gasket?
2. I don't have the manual. Can anyone give me the torque settings for putting the head back on?
3. Would it be a good idea to do a mini-me when i allready have the head off?
4. If so, what would be the best head if i'd do a mini-me?

So those are my questions for now. Thanks in advance!

 

Moved to the 88-91 Civic forum as your car is a better fit here.

 

But it's a '95 model?

 

I understand. The questions you are asking just happen to be a better fit for members who frequent this forum due to differences between USDM and EDM Civics.

 

Mpfi has better throttle response and more power (a gain of >15hp isn't unheard of) so a LARGE difference.
For a minime sway you have to have DPFI. D16z6 is a good head.
If you do a DPFI swap you need a new Disi fyi.
Also you can tune a MPFI set up.
The DPFI setup is great for the gas mileage though.
You can get awesome fuel mileage out of either one, but being that the DPFI is SO GUTTLESS its a little easier to get milage.

While the engine is apart, new timing belt and water pump.
For all that work you could just grab a full Z6 with ecu and harness and call it a day..

 

Yeah i was thinking about a Z6, but i'm not sure if it's worth the effort yet.

The mileage is'nt my biggest priority. Most things that i have to go to are within 50km from my home. So i think i'd drive about 750-800km max a week. pumping gas in her 2x a week is'nt such a big deal atm.

I would have to have a DPFI for a mini-me? o.O I thought it'd be the other way around.. i thought i'd need a MPFI for a mini-me..

btw.. Disi? Sorry, i'm dutch. Don't know that term.

 

He meant to say you have to go mpfi for the mini-me swap. and disi is short for distributor. You will need the one that matches the ecu you will be using. http://hondaswap.com/swap-articles/d...writeup-49557/

 

Ah like that. ok. So it would make a great difference to go to MPFI right?

At my local scrapyard there is a '98 EK hatch with a 1.5 MPFI engine in it. They would sell me the MPFI system for a 100 euro's. Would this be a good idea? Cause i've been reading up a little and all i see is about the 88-91 systems.

Also does anyone have any answers to my other questions? Thanks

 

It would be fine if you posted your questions below as a separate thread in the 92-00 Civic forum.

 

K, did that. thanks for the heads-up

 

*bump* Have'nt really had the answers i was hoping for yet. Maybe some other people could give me some more information?

 

.

 

A dedicated fuel injecter for each cylinder (MPFI) vs two fuel injectors up stream in the plenum (DPFI). The latter will distribute air/fuel mixture slightly unevenly across the runners.

Only possible con is if you use the car strictly as a point A to point B commuter car (even that's subjective). Possibly be better to leave it alone and just enjoy an unmolested engine/car.

Difference in design/purpose. Evolution. Revolution. Take a pick.

Depends on what you want to do with your car. The only difference as a negative is that you might have slightly less MPGs. It's a small trade off for what you gain in acceleration and overall drive-ability.

Depends on the overall condition of your engine. As long as you're realistic about your expectations about the upgrade you will be pleased with the difference in power.

Water pump since you'll have it all open and easily accessible. Inspect cam seal. Have head surface inspected for straightness. Don't forget that there is a loosening/tightening sequence for the head bolts.

Google, you should be able to find a full Factory Service Manual online.

Subjective, it's arguable on what the expectation is vs. throwing in a different camshaft in the original head.

Once again subjective. Pros/cons to any head swap.

One thing to keep in mind is if you are going to do any kind of serious upgrading and/or engine swap, a MPFI is almost literally a must. It's better to get it converted on an engine that you know runs as opposed to swapping an engine AND completing a MPFI conversion in one shot.

 

Now these are some handy answers. Get's me alot closer to the knowledge i'd like to have about this subject. I thank you guys alot and if there are more opinions. Other people can still give me those.

If i read this right, a mini-me would be quite a good idea on my current plans right?
What about the all-round costs?
What parts do i need to do the z6 mini-me?

thanks!

 

AddiXz- I f you get this. i did an mpfi swap last summer, had most same questions as you. It is a daily driver from school to work and of course cruising.
I had i want to say about 10 extra horses to it, before i got headers and intake. however i do highly recommend those once you complete the swap that another easy 10 horses or so. Have it tuned correctly by a mechanic, dont redline it constantly or you'll wear out your rings real quick like i did.
In parts and everything not including the manifold,ecu,and distributor, about $200+
If you decide to do so, it is a great learning experience if you do it right, if you don't do it right you want to get rid of that thing real quick itll **** you off beyond limits.

For parts:
-OBD0-OBD1 conversion from rywire and optional VTEC
-4 wire o2 sensor
-all upper gaskets real street perfromance had a kit for around 160? it has every litle gasket you need
-OBD1 dist.
-P28 or P08 ecu
-lots of extra wire
-you'll need round MPFI dizzy plug for the conversion along with the injector plugs
-basic sh*t like coolant and oil and filter might as well change it

and all that is for a Z6 conversion. Good Luck!

You only need half of this if you just plan on changing the manifold doing a normal MPFI swap

 

Thanks for the information. I'm gonna look into these things soon. First have to fix some other issues. haha

 

I know this is an old thread but just thought I'd add to not forget to remove the oil jet from the block. Always over looked