Swap Articles

ZC Identification Guide The ZC engine is one of the hardest to identify because there are many different versions of this engine. Honda offered this engine in both single and dual overhead cam designs, as well as fuel injected and carbureted versions of these. This article distinguishes the different versions of the ZCs offered. Hopefully this will separate the facts from the myths. The First Generation ZC ZC's were first offered in Civics and Integras in 1985 and were still being manufactured in vehicles up until 2001. The first Generation ZC's were offered from 1985 through 1987. These engines can be found in 85-87 JDM Civics and JDM CRX Si's and were very similar to the 1986-1987 US Integra engine. It's worth noting that this...

Proper Engine Removal Instructions The following shows a good way to remove your motor. There are plenty of other ways to do it, but this is what we have found to be the easiest way. Remeber, practice safety precautions at all times. Good luck. WARNING *Make sure jacks and safety stands are placed properly and host brackets are attached to the correct position on the engine. *Make sure the vehicle will not roll off stands and fall while you are working under it. CAUTION *Use fender covers to avoid damaging painted surface. *Unplug the wiring connectors carefully while holding the connector portion to avoid damage. *Mark all wiring and hoses to avoid misconnection. Also be sure that they do not contact other wiring or hoses or...

Non-recommended Swaps Not all motors work well, or at all, in every chassis. In addition, some DO fit and work, but are still not recommended. Most of this comes down to OBD again. If you haven't read our article on OBD yet, do so before reading the rest of this article. 4th gen * D16Y7/8 * B16A2 (USDM) * B16A3 * 96+ B18C * 96+ B18B * B18C5 * any H-series * any C-series motor We don't recommend these motors for several reasons. The H-series will require much chassis denting, and while that may be cool to do on a race car, it makes your bay look like crap and can lead to a weaker engine bay. In addition, you wont have room for A/C or power steering if those options are required by you.The other motors...

Differences between B16A motors B16A Motor Guide - Describing the Differences There are 4 general classifications for B16A motors: * B16A SiR * B16A SiR II * B16A2 * B16A3 It is often confused as to which motor is which. In this article, we will help you to pick out the clues as to which motor is which, and which one you should get for your B16 swap. Although I just noted that there are 4 classes of B16A's, we can break that list down into two groups. Our new grouping of B16A motors: * B16A SiR * B16A SiR II, B16A2, B16A3 Why this breakdown? It all comes down to OBD. OBD, or on board diagnostics, are broken down into levels, based on the years they are instated. For more info on OBD, please read our...

With the new K-seires motors around us, there is a need for new information about the motors themselves. This article won't deal with swapping it in any car- but rather comparing the two variants. the k20a3 is found in the 02+ civic si and the base model rsx and have a 5 speed tranny. the k20a2 is found in the rsx type S and comes with the 6 speed tranny. The k20a2 and the k20a3 share the same 2.0-liters of displacement, bore/stroke, block, head, valves, and intake manifold. However, pretty much the entire internals and external bolt ons couldn't be more different. The k20a2 has higher compression pistons, more agressive cams, dual valve springs, and a tri-Y header with larger primaries than the k20a3. If that wasn't enough, the...

If you bought a CX or DX civic with a 1-wire o2 sensor, you're going to have to convert to a 4-wire to run a b-seires ecu, and most of the "top of the line" d-series ecu's like the p28. First things first, you need to physically buy a 4-wire o2 sensor. you can't send a heater signal to a device which has no heater circuitry and expect it to work :D Wires on 4 wire O2: WHITE: Signal Wire GREEN: Signal Ground 2 BLACK: Both black wires are the heater circuit wires. Using a P28 ECU (and should work for most obd1 ecu's with 4-wire controls) Run O2 Sensor signal (white) To D14 Run O2 Sensor signal Ground (green) to D22 (or any good Ground) Run O2 Sensor Heater Circuit Control (black) to A6 Run the other black heater circuit power wire...

No matter HOW a car is powered - NA, Super, Turbo, NOS, ZEX, Propane, or anything else that involves a transmission with gear reduction, a car will ALWAYS accelerate the fastest with the CLOSEST transmission. Saying an LS tranny (long geared) is good for boost is simply wrong. "staying in boost longer" is also a false statement. If you have traction problems, solving them with a longer tranny is the WRONG way to do it. Tires, suspension setup, and other forms of traction enablers are what you should be looking at- not slowing yourself down. Taking the differential out of the equation for this - assume all can be replaced with a limited slip. This is focused on gearing only. So, here's my recommendation, and your needs and...

How to Wire VTEC This is something that I see come up, and sometimes people get confused by the written instructions, so here's one with pics. This can also be used for wiring just about anything you need, like a knock sensor, IABs, o2 sensor, whatever. I HIGHLY suggest have a manual with a wiring diagram and the pinouts, for your ECU, you don't want to screw up now that your motors in right? Ok, assuming you have a vtec motor in a non vtec car and you need to wire in vtec y0! here it is... Our demonstrator model is a 95 CX with a OBD I B16A. So you have your motor in the car, and you are using XXXX engine harness, as long as you have the plugs (usually come with motors harness, even JDM, just remove the whole thing from...

IACV Wiring OBD2a OBD2B

How to Convert DPFI TO MPFI: A Wiring Guide SUPPLIES: 1 black 0BD0 ecu connector w/ pins 1 0BD0 MPFI engine harness Distributor plug w/ wires 1 0BD0 MPFI ECU 1 Injector resistor box (w/ enough wire to solder to) Various wires in colors close to factory colors as possible heat shrink tubing electrical tape soldering iron/solder/equipment Wiring: Refer to the above diagram for more details on location and colors A1 - BROWN A3 - RED A5 - BLUE A7 - YELLOW INJ TO RES BLK/RED RES TO Al5 BLK/YEL Move wire from Cl to B10 ORANGE Move wire from C2 to B12 WHITE Pins C1 & C2 are now empty From C1 run a BLU/GRN wire into the engine bay From C2 run a BLU/YEL wire into the engine bay *I advise you to put the connectors near the...

EF Swap Guide Original: Ben Ogle (Updated and fixed bad links by HondaSwap.com Staff] So you have an EF/ED. Chances are that it is slow, especially if you ended up with a DX, LX, STD or some other long-geared, gas-saving, dual point model. So this guide is here to help you decide how you want to make faster without the aid of forced induction (well, you can go that route too but its not covered). If you are a newbie read EVERYTHING here. That way you will spend less time asking questions on message boards. Also, I didn't feel like reiterating everything in every specific motor section so read at least the first few before you scroll down to the motor you want to get. B-series These are by far the most popular swaps. They are fairly...

Assuming you will be using the same vintage drivetrain as the car here are the Honda part numbers for the 3 main mounts you will require. All mounts from 99-00 Honda Civic SiR (US Si) Note: The transmission mounts are for the 99-00 SiR tranny. If someone could confirm that they would also fit the Integra transmissions it would make this thread more usefull! the T-Belt mount will fit any B Series engine however.) Timing Belt Mount Part # 11910-P30-000 (Mount bolts to the block underneath the timimg belt cover) Transmission Mount (top) **Update: All hydraulic trans use the same mount, therefore this mount is not required** Part # 50825-S04-000 Rear Mount (t-shaped bracket) Part # 50827-S04-N10 Torque Mounts left/right I don't have...

I have an H23 in my 94 lx 4door and i kept my a/c. Here's how i did it. First you will need to leave the a/c compressor hooked up - do not disconnect it. You can work around it. When you get the engine out, pull the a/c bracket off your old block (F22) then put it on the Prelude motor. It will bolt right up. Then you will use the alternator bracket from the h23 and the power steering bracket from an h22 and all your stuff from the accord will bolt up including a/c alternator power steering pump You will need the belt for an H23 motor to run the alt and a/c compressor Then you will need to check the fitment for the power steering belt. Take the car to a local auto parts store so you can keep trying different sizes- it is a...

Honda OBD1 to OBD2 Alternator Wiring Guide If you don't have an obd1 alternator, a quick re-wiring of the obd2 plug pigtail can help save you some money. The wiring process is fairly straightforward. obd2 alternator plug__ obd1 wire harness black with yellow strip__ black with yellow strip white with blue strip __white with blue strip white with red strip__ all blue wire white with green strip __white with yellow strip

The mad tyte JDM h22a swap for 92-95 EG Civics (should work for 92-00. Edited to include EK 96-00 wiring): Seeing lots of h22 swap questions and misc B.S h22a threads, I decided I'd make a thread here for Honda Swap. An almost complete h22 swap guide if you will. I've done the swap and regret not taking pics of pulling and installing the h22 in my 92 hatch. What you'll need: H22 Motor and trans p13 ecu(or chipped ecu like a p28) Shifter box and cables Swap mounts Injector resistor box(or do Bizzar's DSM injector resistor mod from d-series.org) Accord(94ish) Driver's side mid shaft 90-93 Integra axles + the inner CV snout of a 94+ Prelude or Accord(Explained later) Spare CV grease and boot clamp After market radiator(suggested) slim...

JDM H23A Bluetop Swap Guide I've seen checklists for swaps like this but I thought I would give my .02 from having done this personally. For the H23a into a 93-97 accord it's not just about a motor and a car, in a lot of ways there's kind of a theory-crafting that goes into it. For this swap, the plan was always to run it OBD1 off of a P28 ECU. So consider, H23a Bluetop motor specs per wikipedia (take it for what you will) Found in the Japanese 1998-2002 Accord Wagon SiR (CH9). It produces 200 PS (147 kW; 197 hp) @ 6,800 rpm & 163 lb·ft (221 N·m) @ 5,300 rpm and comes with a "blue top". Found in the Japanese 1998-2002 Accord Wagon AWD (CL2). It produces 190 PS (140 kW; 187 hp) @ 6,800 rpm & 163 lb·ft (221 N·m) @ 5,300 rpm and...

Editors note: Originally published by Adam P. on his sub-site, Change Honda ECU from Automatic to Manual. Preserved here in the forums going forward. This guide will help you identify and change or convert your automatic ecu to a manual version. Honda Manual or Automatic ECU Identification First, let's find out if we have an automatic, or a 5 speed ECU. If you don't want to plug it in and throw code 19 (automatic trans lockup solenoid) to find out it is an automatic ECU, then look at the code on the side. If the second to last number is a 5, then you have an automatic ECU (for OBD-1 USDM ECUs). If the 2nd to last # is anything but a five you have an ECU for a 5 speed. If you have a jdm obd-1 ecu, look at the last 3 digits: 900 or...