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The Brick Newsletter - March 2011

Page 4: Spark Plug Wires, Spark Plug Folklore, Spark Plugs

Orders placed through our website will automatically receive any discount pricing associated with this promotion.
If you call to place your order, please be sure to mention media code "MP" to ensure that the correct sales pricing is applied to your phone order.

Sale pricing valid from Friday, March 11, 2011 through Friday, May 06, 2011

Spark Plug Wires by ipd

Our custom spark plug wires are made with a high quality 8mm silicone jacket and feature a spiral wound core for maximum electrical efficiency. Each wire set is custom designed for each application covering over 40 years of Volvo models. Engineered to meet and surpass OEM quality, our wire sets include factory style metal end connectors (where applicable). Each wire set includes spark plug and coil wires as well as dielectric grease used on the plug boots for easy removal at tune-up time.
240 Series - 1975 B20 - spark plug wires by ipd
$49.95111303IPD
240 series - 1976-93 - spark plug wires by ipd
$69.95111306IPD
700, 900 series - Bosch - spark plug wires by ipd - cam driven
$69.95111305IPD
700, 900 series - Regina - spark plug wires by ipd - cam driven
$59.95111304IPD
700, 900 series 1990-1995 - Bougicord - coil wire for Rex-Regina cars
$11.82101968BOUGICORD

What’s a Rex Regina?

Some 1989 through 1995 740 and 940 non turbo models were equipped with Rex- Regina engine management systems. These models use different tune up parts than the Bosch equipped versions, such as the spark plug wires, distributor caps, fuel pumps and filters. You can easily determine if yours is a Rex Regina model by looking at the ignition coil. Here are pictures of the Rex Regina and BOSCH coils.

The BOSCH system is identified by the conventional style ignition coil mounted on the passenger side of the firewall near the strut tower.
The REX Regina system is identified by the solid state ignition coil mounted on the driver side strut tower.
Although it’s rare, we have seen some 1990-1995 non turbo 740 and 940 models with a side mounted ignition distributor like this. Unfortunately, we do not have ignition components for these models.

Original Equipment Spark Plug Wires

by Bosch and BougicordA properly tuned ignition system is one of the most important factors of any engine. It will keep your engine running smoothly, economically and will deliver the most power. The increased heat under the hood may lead to premature degradation of the ignition wires. These wires are made by the original equipment supplier to Volvo so you are assured of the best quality in replacement wires.

Bosch
240 series - Kit w/90° #1 wire for A/C. Complete kit with Bakelite ends - Bosch - 1975 - B20
$23.03101527BOSCH
240 - 4 cylinder models - 1976-1993 - B21/B23/B230
$38.62112423BOSCH
Bougicord
240 series - Kit (2 coil wires - both short and long wires included) Metal jacketed ends - 1976-93 - B21, B21FT, B23, B230
$55.46101528BOUGICORD
700, 940* series - Complete kit (cam driven distributor) Rubber ends - 1985-95 - B230, B230FT
$49.30104096BOUGICORD
700, 940* series - (REX-1) for coil mounted on driver’s side Rubber ends - 1989-95 - B230
$50.84104099BOUGICORD
!What’s a Rex Regina?!]Some 1989 through 1995 740 and 940 non turbo models were equipped with Rex- Regina engine management systems. These models use different tune up parts than the Bosch equipped versions, such as the spark plug wires, distributor caps, fuel pumps and filters. You can easily determine if yours is a Rex Regina model by looking at the ignition coil. Here are pictures of the Rex Regina and BOSCH coils.

The BOSCH system is identified by the conventional style ignition coil mounted on the passenger side of the firewall near the strut tower.
The REX Regina system is identified by the solid state ignition coil mounted on the driver side strut tower.
Although it’s rare, we have seen some 1990-1995 non turbo 740 and 940 models with a side mounted ignition distributor like this. Unfortunately, we do not have ignition components for these models.

Spark Plug Folklore

Spark plugs are one of the more simple parts of today’s vehicles and yet still are misunderstood. Heat range, firing voltage, and durability are all important factors in vehicle performance so correct spark plug application is critical.

Heat Range: Hotter plugs have longer insulator noses, which have greater surface area in contact with the combustion gases. This keeps the plug temperature higher overall which is preferred for extended stop and go or idle conditions, a hallmark of city driving. The shank of the plug will tend to be shorter, less material to sink away heat. Hotter plugs do not generate more or greater spark. Ideally spark plug temperature for the average vehicle should run between 550-800 degrees C. Timing has a direct effect on plug temperature as well, 10 degrees of advanced timing can up plug temp by 100 degrees C. Colder spark plugs have shorter insulator noses, which have a lesser amount of surface area exposed to the combustion chamber gases. Generally colder plugs are used for racing applications or engines with turbochargers, supercharges, nitrous, etc since they can transfer the greater amount of heat these engines produce from cylinder combustion to the head quicker. A colder plug will help to reduce ping or detonation, although the colder the plug the greater the risk for fouling or buildup during extended light throttle or idle conditions. The shank of the plug will tend to be longer, more material to sink away heat. Colder plugs do not have less or reduced spark.

Firing Voltage: Firing voltage, otherwise known as ionizing voltage, is a complex beast. Many factors affect the firing voltage including, cylinder temp, cylinder pressure, ignition system components wear, humidity, barometric pressure, and fuel mixture to name a few. New iridium spark plugs available from various manufacturers are designed to require a lower firing voltage. This translates into lower load on the ignition system and increased life span of components. Iridium also resists electrode oxidization and erosion to provide consistent performance during its’ life span. Performance engines demand a high quality plug to survive the harsh cylinder conditions associated with turbos, superchargers, nitrous, etc. Many tuners are using iridium with very noticeable results justifying the greater expense for these parts.

NGK and Bosch Spark Plugs

The first suspect in a poor-performing engine always seems to be the plugs.

On overhead cam engines one should expect about 30k miles but, as these are getting older, they are wearing out sooner too. Contaminants such as oil and incorrect fuel mix will shorten the life of a plug dramatically.

We have been using and selling NGK spark plugs since the seventies because they’re the leaders in copper core technology. Copper is a great conductor of electricity and heat, so copper spark plugs perform well under all extremes and have a large conductor tip for maximum spark area.

4 cylinder non-turbo - 1976-93 - NGK spark plug
$1.87101135NGK
4 cylinder non-turbo - 1976-93 - NGK resistor spark plug
$1.81101138NGK
turbo 4 cylinder all - 1981-93 - NGK spark plug
$1.97101137NGK
turbo 4 cylinder all - 1981-93 - NGK resistor spark plug
$1.87104524NGK
960 series, S90 - 1993-98 - Bosch resistor spark plug
$1.81102993BOSCH

Sale pricing valid from Friday, March 11, 2011 through Friday, May 06, 2011

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