Item No: 5520
MSD Street Fire CD CDI (Ignition box) 5520

Price:   $135.00
 

  Quantity:  
MSD Street Fire CD CDI (Ignition Box) 5520

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MSD street fire CD ignitions are perfect for budget-minded enthusiasts. Street Fire CD ignitions offer capacitive discharge technology that fires a series of multiple sparks for 20 degrees of crankshaft rotation when then engine is running under 3,000 rpm. This ensures complete combustion and produces great throttle response with a smooth idle. MSD s Street Fire CD ignition are built within a durable cast aluminum housing and easily connects to points, amplifiers, and magnetic pickup distributors. There s even an adjustable rev limiter (100 rpm increments) for over rev protection!

A word from our company president, Skip White

  • CD Voltage Output to Coil
  • 435
  • Circuitry
  • Digital
  • Coil Included
  • No
  • Current Draw
  • 0.7 amps per 1,000 rpm
  • Data Acquisition
  • No
  • Height (in)
  • 1.750 in.
  • Ignition Box Color
  • Black
  • Ignition Box Output
  • Capacitive discharge
  • Length (in)
  • 6.000 in.
  • Maximum Operating Voltage
  • 18
  • Minimum Operating Voltage
  • 10
  • Quantity
  • Sold individually.
  • Rev Limiter
  • Yes
  • Spark Output (millijoules)
  • 95
  • Timing Retard
  • None
  • Warranty
  • 1-year
  • Width (in)
  • 3.500 in.

    Below is an exerpt from the MSD website about cdi styems in general.

     What’s the differences between a Capacitive Discharge (CD) ignition like an MSD and my stock ignition system?

    The biggest difference is that the majority of stock ignitions are inductive ignitions. Inductive ignition systems are used due to their simplicity and inexpensive production. For stock applications these ignitions are adequate, but when it comes to gaining performance, factory inductive ignitions fall short.

    The primary weak link of a stock ignition is because the coil serves double duty. The coil must act as a step-up transformer to create a higher voltage spark, plus it needs to store this power until the ignition is triggered. As engine rpm increases there isn’t enough time to completely step-up the voltage before the ignition is triggered resulting in a weaker spark. This low voltage spark may not be enough to light the fuel mixture in the cylinder which will result in a misfire and loss of power.

    A CD ignition, is capable of producing full power sparks throughout the entire rpm range. It draws its energy directly from the battery where a custom wound transformer steps it up to over 460 volts. This voltage is then stored in a capacitor until the ignition is triggered. At this point, all of the voltage is dumped into the coil where it is transformed into even more voltage, anywhere from 30,000 - 45,000 volts depending on the coil, which is sent to the distributor and finally to the plugs.

    The ability to produce high power sparks throughout the entire rpm range of your engine is why you need a CD ignition. The payoff is complete combustion of the fuel mixture which results in more power, increased throttle response, a smooth idle, quick starts, improved economy and reduced plug fouling.

    All engines will benefit from a CD ignition but when you’re planning on engine modifications, the need for an MSD Ignition increases. In particular, if you’re planning these types of engine modifications, you should be installing a CD ignition:

    • Improving air flow into the engine or richening the fuel mixture (rejetting or larger injectors)

    • Adding a super/turbocharger or a nitrous oxide system

    • Increasing the compression ratio and consistent high rpm operation

    5. Why does an MSD produce multiple sparks and what are the benefits?

    Conventional CD ignitions supply one spark of intense energy but for a short duration (time). An MSD uses multiple sparking technology to take advantage of the quick rise time and power of a CD Ignition by producing a series of sparks. More sparks equal more heat in the combustion chamber resulting in complete combustion of the fuel mixture which produces more power. At lower rpm, there are many benefits to multiple sparks including a smooth idle, improved throttle response plus the spark series prevents fouling plugs or fuel loading up in the cylinder when air/fuel distribution is poor.

    The multiple spark series of an MSD Ignition Control lasts for 20° of crankshaft rotation. At lower rpm, 1,000 rpm for example, there is plenty of time to fire the plug a number of times to ensure ignition of the fuel mixture. As rpm increases, the piston travels up on the compression stroke faster resulting in a shorter amount of time available to fire the plug so the number of sparks that occur decreases. By about 3,000-3,300 rpm, there is only enough time to fire the plug once. From about this rpm range on, an MSD ignition control delivers one intense, full power spark.

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    Warranty: 
    MSD ignition warrants its product to be free from defects in material and workmanship under normal use, if properly installed, for a period of one year from the date of purchase. Contact MSD s customer service department for an RMA number before returning an ignition.

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    PAYMENT AND SHIPPING DETAILS

     

    WE OFFER GREAT DISCOUNTS ON SHIPPING. YOU ONLY PAY THE FULL SHIPPING FEE ON THE HIGHEST SHIPPING COST OF YOUR ITEMS, AND HALF PRICE SHIPPING ON ALL ADDITIONAL ITEMS. FEW OFFER DISCOUNTS ON SHIPPING SUCH AS THIS. EMAIL US USING THE "ASK THE SELLER A QUESTION" TAB IF YOU WOULD LIKE US TO CALCULATE YOUR SHIPPING COST ON MULTIPLE ITEM ORDERS. YOU MAY ALSO REQUEST AN INVOICE AT TIME OF CHECKOUT. IF YOU ARE UNABLE TO CONTACT US BY EMAIL PLEASE GIVE US A CALL AT 423-722-5152 FROM 8AM-7PM EASTERN TIME MON-FRI AND 10AM-3PM ON SAT. WE WILL ANSWER YOUR EMAIL WITHIN THE ONE BUSINESS DAY IN MOST CASES, SO KEEP SHOPPING AND PAY HALF PRICE SHIPPING ON ALL ADDITIONAL ITEMS. OUR CHECKOUT SYSTEM WILL AUTOMATICALLY CALCULATE YOUR SHIPPING DISCOUNT AT TIME OF PAYMENT, SO LONG AS YOU CONSOLIDATE YOUR PAYMENT.

     

    If you checkout and start over, the auto calculator will not recognize the multiple purchases, and there will be no shipping discount. Should you decide to start purchasing again after checking out, you will need to contact us so we can calculate your shipping for you.

     

    IF YOU ARE HAVING DIFFICULTY PAYING WITH PAYPAL, FEEL FREE TO GIVE US A CALL AT 423-722-5152. SALES AND CUSTOMER SERVICE HOURS OF OPERATION ARE 8AM-7PM MON-FRI & 10AM-3PM SAT EASTERN TIME ZONE 

    FOR TECH SUPPORT, PLEASE USE THE "ASK SELLER A QUESTION TAB". IT S LOCATED AT THE TOP RIGHT HAND SIDE OF THIS PAGE. YOU MAY ALSO CALL FOR TECH SUPPORT IF YOUR UNABLE TO EXPLAIN WHAT YOU NEED IN AN EMAIL. TECH SUPPORT IS USUALLY NOT AVAILABLE UNTIL AROUND 11AM-7PM MON-FRI

    Return Policy

    If for ANY REASON any item is needed to be returned the customer MUST CALL FOR AN AUTHORIZATION from us. The item must be LABELED CORRECTLY and include a copy of the ORIGINAL RECEIPT inside the package. It is preferable that you use the original package that the product was received in. You MUST label the OUTSIDE of the package with the ATTN to representative that gave authorization written in BIG BOLD LETTERS on the OUTSIDE of the package AND on the receipt inside the package. You must also explain in writing what the problem is with the item. It is preferable that you enclose this information in a packing slip attached to the box. We cannot stress how vitally important this is in regards to getting your return taken care of in a prompt manner. If the item comes back to us UNLABELED and/or NO RECEIPT inside the box, the return WILL NOT BE PROCESSED. If the item is unclaimed for more that 7 days, the returned item will be marked return to sender if allowed by carrier. If return to sender is not allowed by carrier, the item WILL BE DISCARDED. We are NOT RESPONSIBLE for any returns received that are not properly authorized and labeled correctly. Please call for authorization 423-722-5152. Please have ebay user name, date of purchase, and item number(s) when calling for return authorization. If the item is defective, we will pay the shipping in both directions for up to 30 days. Beyond 30 days you will be required to pay the shipping to send the product to us. We will always pay the shipping to return the replacement item to you.

     

    FedEx is our primary shipper. We are unable to ship to APO/FPO addresses. Help us ship your order promptly by including your physical address at checkout. If your order MUST be shipped to a PO BOX, please contact us by phone. Additional charges may apply. Below is a map representing the estimated delivery time to get to you from our location.



    FedEx Home Delivery delivers Tuesday - Saturday. If a package leaves here on a Thursday, and you are in a 2 day delivery zone, your package will deliver to you on Saturday. If you are in a 3 day zone, and your package leaves on a Thursday, you will not receive it until Tuesday. Expedited shipping is available upon request for an additional fee. Please contact us for rates.  

    Hawaii and Alaska have a 6+ day estimated delivery time.

    The shipping quoted in this ad is only for the 48 continental United States. If shipping to anywhere else, please give us a call or email us for quotes. The half price shipping on all additional items also only applies to items that are being shipped in the 48 continental United States. If you have any questions, you may give a call at 423-722-5152


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