WhiteSol

My first Beat, #635

<U>Index:</U>
Page 1: Specifications ** NEW ** USDM compatible PARTS LIST at bottom of this post **
Page 3: Engine Removal and ECU Pin-out & PGMFI Wiring
Page 4: Engine Wiring Harness Pin-out & B16 swap beginning
Page 6: New Sub-frame for B16 swap, suspension work
Page 8: 2nd mockup for engine mounting position, manifold modification begins
Page 9: Custom driveshafts and fuel cell fabrication



<U>Introduction:</U>
The purpose of this topic is to share, through my hands on experience, all the little known details of one of the strangest Honda's I have ever seen. I would like to provide a solid starting point for current or future Beat owners to know a little more about their cars.

From my Internet research the technical details of the Beat are very vague, the majority of the technical or mechanical sites are in Japanese, and very few pictures exist of the mechanical systems. I will endeavor to meticulously photograph, measure the Beat as I break down its systems. This will be an on-going project as I am currently using the vehicle for a daily driver.

Thanks for looking, enjoy!
-Scott

<U>Honda Beat history:</U>
(Taken from http://en.wikipedia.org/wiki/Honda_Beat)

The Honda Beat is a mid-engined two-seat convertible kei car produced from in May 1991 to February 1996. The total number of cars produced was around 33,600. Most of the production (around two-thirds) occurred in the first year, and then production and sales fell drastically.

There were two different models of the Beat (the PP1-100 and the PP1-110), although there were a couple of different limited edition versions as well. Variations on the first model were just cosmetic updates. Only the second model had any real mechanical differences. All cars were offered with the option of a driver's side airbag.

In typical Honda fashion, the Beat's engine did not utilize a turbocharger or supercharger. The 656 cc engine was modified with the MTREC (Multi Throttle Responsive Engine Control) system, which included one throttle valve for each of the three cylinders, to produce 64 PS (48 kW) at 8100 rpm. Only a manual transmission was available. The MTREC design would filter down to the 1993 Honda Today kei car.

The Beat was part of a wave of kei car-sized sports cars in the early 1990s; its competitors included the Suzuki Cappuccino and Mazda's Autozam AZ-1. Together they predicted the arrival of the Smart Roadster over a decade later, while Japan would not see a new model of the genre until the recent Daihatsu Copen

<U>Beat Trivia:</U>
-The Beat became the last car to be approved by Soichiro Honda before he died in 1991.
-The design of the car originated from Pininfarina, who then sold the design plan to Honda.
-The Beat has lettering running down the sides proclaiming "Midship Amusement", a rather "Engrish" phrase referring to the fun handling of mid-engined cars.
- "Open Air Motoring" is written on Beat floor-mats
- The Beat shares many common parts with 3rd and 4th generation Civics.

Dimensions:
Overall Length - 3,295
Overall Width - 1,395 mm
Overall Height - 1,175 mm
Wheelbase - 2,280 mm
Track F/R - 1,210/1,210
Ground Clearance - 135 mm
Seating Capacity - 2
Front Tires - Bridgestone Potenza RE87 155/65R13 73H
Rear Tires - Bridgestone Potenza RE87 165/65R14 74H
Weight Gross Vehicle Weight Rating (GWWR) 760 kg

ENGINE:
E07A 3 Cylinder 4-stroke SOHC 12 valve, water-cooled
Layout - Transversely mounted Mid-engine
Max power - 63hp (47kW) @ 8100rpm
Max torque - 44 ft.lb (60Nm) torque @ 7000rpm

Redline - 8500rpm
Bore and Stroke - 66.0mm x 64.0mm
Displacement - 656cc (0.6L)
Compression Ratio - 10:1
Lubrication System - Forced and wet sump
Fuel Required - Unleaded gasoline
Fuel Capacity - 24 liters
Fuel Mileage - 17.2 km/liter, 27.0 km/liter (60km/hour)
Engine oil capacity: 2.7L with filter
Coolant system capacity: 4.7L

TRANSMISSION
Synchronized 5-speed forward, 1 reverse
Primary Reduction - Direct 1:1
Transmission fluid capacity: 1.2L SE/SF 10W30

Gear Ratios:
1st - 3.428
2nd - 2.166
3rd - 1.576
4th - 1.172
5th - 0.941
Reverse - 4.300
Final Drive - 5.714

~sp33~

Nice break up of one of Honda's less popular achievements.

kid-honda

iTrader: (2)

This should be a great thread
I would love to own one someday.

RapeV-8

more pics please

blinx9900

BOOST IT!!!

full Circling

moar picks!!11

kellogg97rs

I have never heard of this car in my life...thank you for enlightening me

CivicVX94

3s-gte
That thing is sick tho! i cant wait to see updates

WhiteSol

<U>Honda Beat Front Brake specifications:</U>
Rotor:
Rotor type - non-ventilated
Rotor outside diameter - 213mm
Rotor inside diameter (center-bore) - 61mm
Rotor thickness (worn) - 10mm
Hub surface to backside of rotor - 33.62mm

Caliper:
Caliper # - Nissin 15CL12S
Caliper bracket casting # - S1CN
Caliper piston OD - 48mm

Brake Pad:

I measured, 103.78mm end to end on tabs, 13.02mm on tab width, 35.56mm contact surface width, 88.56mm length.

I will be looking for a stock replacement pad for the Honda Beat based on those criteria, but it resembles a rear disc brake pad from an EG or from the non-ventilated 3rd gen civic 1300 (84-87). I'll post what I find later to complete that info.

My Beat brakes:
Ok, I tried to get into a brake job on it today, unfortunately the caliper that the parts store had given me was the wrong one. I am going to hybridize the brakes for the slightly larger 230mm 3rd generation civic ventilated disc brake. I prefer the ventilated type to non-ventilated because of its greater resistance to heat warpage. It will affect the unsprung weight slightly, but it is a sacrifice I am willing to make.

Initially I had planned to replace the beat hubs with civic wagon hubs, but to my surprise they were slightly different. The civic hub would physically fit, and could be used but it would alter the ride height but about an inch, and change the bump-steer angle, so I decided against it. The civic tie-rod mounts below, and the beat mounts above. Both tie rod OD's and taper were identical though, which probably means you could replace beat outboard tie-rod ends with 3rd gen civic tie rods ends.

The brake caliper to rotor spacing on the two hubs is not identical, so in order to use the larger ventilated disc I will be using a 5mm aluminum spacer. I will post pics of the completed front brake conversion tomorrow (if the weather co-operates).







civic knuckle beside beat's




Beat brake pad


civic knuckle/hub assembly



**NEW**
Overlapping part numbers from the Honda Beat to other North American Honda models:
Brakes, Chassis, Suspension
43327-SD2-305 - Shim, pad (outer) - Fits 92-95 Civic/Del Sol, 94-01 Integra
43022-SS1-000 - Rear Brake pad set ~ 43022-SR3-030 Should fit, 88-91 Prelude, 90-91 CRX SI, 92-95 civic SI, 94-96 Integra RS, 97 Integra LS 4dr

Rear brake caliper rebuild kit
-All parts match 88-91 Prelude EXCEPT the adjusting bolt which is from many 1990 up Honda/Acura vehicles - PN - 43249-SM4-951

Front and rear wheel bearing - 44300-SB2-004 - 84-87 CRX, 89-91 Civic 4wd Wagon (rear)

Engine Electrical
Ignitor - 30550-PH3-004 - 88-91 Prelude
COil - 30500-Ph1-026 - 85-87 Prelude, 86-89 Accord, 86 Integra
Spark plugs - NGK BKR6E-11 or Denso K20PR-U11

Fuel Filter - 16010-SS1-A31 - 90-91 Integra

WhiteSol

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by full Circling &raquo;</TD></TR><TR><TD CLASS="quote">moar picks!!11</TD></TR></TABLE>

Mine..




Not mine..












E07a engine

full Circling

lol what's the engine sound like?

WhiteSol

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by full Circling &raquo;</TD></TR><TR><TD CLASS="quote">lol what's the engine sound like?</TD></TR></TABLE>

It sounds like a cross between a D-series with ITB's and a CBR 600. I'll see if I can get a decent sound clip of the motor later in the week.

Mr_ET

This sounds like fun Scott, if you ever drive by my neck of the woods I wouldn't mind a quick drive

projectTeG

in for sound

dinko

haha im in in hopes that you will pick up a chick someday with that car....

89s1

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dinko &raquo;</TD></TR><TR><TD CLASS="quote">haha im in in hopes that you will pick up a chick someday with that car.... </TD></TR></TABLE>

Dont know abuot you man, but I dont rely on my 15+ year old honda to get me chicks.

For that i rely on a combination of looks, sense of humor, and leaving my zipper open.

WhiteSol

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 89s1 &raquo;</TD></TR><TR><TD CLASS="quote">

Dont know abuot you man, but I dont rely on my 15+ year old honda to get me chicks.

For that i rely on a combination of looks, sense of humor, and leaving my zipper open. </TD></TR></TABLE>

LOL
I second that..

subydoored

bump for the beat

bambam

R/S ratio?
Car has some Del Sol and S2000 resemblances. I like.

zdizzle

Awesome Id never heard of this car...k20 swap looks awesome

89s1

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by WhiteSol &raquo;</TD></TR><TR><TD CLASS="quote">

LOL
I second that.. </TD></TR></TABLE>

heh, thought you would

Mikey3000

so when are you putting a B18 in it? how much does it weigh?

hatchling37

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by WhiteSol &raquo;</TD></TR><TR><TD CLASS="quote">


</TD></TR></TABLE>
Look at it! It's just a little guy! Hehe Looks like a fun and unique project.

WhiteSol

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bambam &raquo;</TD></TR><TR><TD CLASS="quote">R/S ratio?
Car has some Del Sol and S2000 resemblances. I like.</TD></TR></TABLE>

Very good question, and one I haven't been able to find any information about.
We know the stroke is 64.0mm, but everything else internally is a mystery to me until I tear down the engine. By the sound and feel of the motor, I am guessing Loooog rods.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hatchling37 &raquo;</TD></TR><TR><TD CLASS="quote">
Look at it! It's just a little guy! Hehe Looks like a fun and unique project.</TD></TR></TABLE>

What struck me about how the motor, looks is how much it resembles a D-series.
Here is a picture I found of how to set the valve lash, which was the same clearances as a d-series.


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mikey3000 &raquo;</TD></TR><TR><TD CLASS="quote">so when are you putting a B18 in it? how much does it weigh?</TD></TR></TABLE>

The car weighs 1675.5lbs according to its specs. B18 has been done already, I've got something special planned. I will be tearing down the motor for knowledge's sake, and most likely once apart it will never run again. I have a parts list for the car, but no where on the list is engine bearings..

B18 Beat, PLEASE DO NOT ASK FOR MORE PICTURES OF THIS, IT IS NOT MINE AND NOT THIS THREAD'S OBJECTIVE

WhiteSol

Update for my Beat:
I spent 3 hours yesterday on a manual horizontal mill, making hub spacers. I want to install the new brakes today finally, but it may take a back seat to more pressing matters.

Some interior shots of my car,





Under the hood


Massive trunk space/battery storage/rear firewall/ engine compartment.