Track Google Rankings plugin provided by seo.

DC Power Engineering Blog

1Nov/130

The “Truth” behind Denso Hairpin High Output Alternators

We have been getting an increasing number of calls about how “X” competitor is offering a “Denso Six-Phase Hairpin” while selling it for a significantly cheaper price. However, what many people fail to know the truth due to the “Smoke and Mirrors” tactic that our competitors use. The units that our competitors are advertising happen to be the small case Denso Hairpins while DC Power sell the large case Denso units. DC Power always recommends to our customers the large case units over the small case units for one goal, idle output.

The Large Case Hairpin is 138mm OD while the Small Case is only 129mm OD.

The Large Case Hairpin is 138mm OD while the Small Case is only 129mm OD.

As seen above, the small case Denso alternators are based on the 129mm OD stator, which range from 100 to 180 amps (cold rated) that are found in most vehicles today such as Toyota, Honda, Ford, General Motors, etc. Not only is the stator outer diameter smaller, the gauge wire used isn’t near as thick as the larger 138mm stator as well. The small case Hairpins are great alternators and that’s why DC Power sells them as our HP Series. However, when we are getting an increasing number of calls saying that a competitor is selling a “270-amp hairpin”, claiming the same power curve as our large case hairpin. Since the two are nothing like one another this is where we as a company have to draw the line and put an end to this nonsense.

18Apr/130

24V 150 Amp Dual Spool GM High Output Alternator

DC Power Engineering is always striving to bring new innovation to the aftermarket industry. After doing a ton of research and development, we are happy to talk about our new 24V, 150-amp high output alternator.

24V 150 Amp Delco Right View

The DC Power 24V high output alternator is built off of ZERO aftermarket Chinese components. Instead, we're using 100% brand new OEM components along a custom in-house CNC machined billet aluminum drive end frame. The drive end frame pictured here has the same mounting pattern as a CS130D, AD244, CS144, DR44 and DR44G alternator. Here is a picture of the frame itself to show the amount of detail we put into making our drive end frames stand out:

24V 150 Amp DE Frame

The biggest advantage of this alternator is it's ability to produce a extremely impressive power curve. We have tested this 24V alternator on a Chevrolet Duramax and saw over 90 amps at 27.5 volts at idle at operating temperatures! Here is a computerized power curve of this alternator that we generated using our D&V Electronics ALT-98H after getting the alternator to operating temperature:

24V-150A-Hot-Powercurve

 

We did have a video to post on this blog entry, however our tester’s battery bank was in poor condition due to both batteries failing at the same time so we couldn’t get an accurate representation of that alternator’s top end output. We will be sure to post a video in the near future with the true capabilities of this alternators output.

DC Power does have two dual alternator kits available for mounting the 24V alternator for a 24V isolated system for those that are interested:

1999-2013 GM Vortec 4.8, 5.3, 6.0, 6.2 V8 GM and Chevrolet Vortec 24V Dual Alternator Kit

24V 150 Amp Dual Kit Front View

24V 150 Amp Dual Kit Top View

 

GM/Chevrolet Duramax 6.6L V8 Dual Alternator Kit

24V Dual Alternator Kit Front Mounting

24V 150 Amp Duramax Dual Alternator Rear Clearance

If anyone has any further questions, please don't hesitate to give us a call at 1-951-509-5617.

11Feb/130

High Output Alternator differences: XP, SPX and SPX-i


SPX, XP and SPX-i Stator

A lot of people call and ask, "What's the difference between the XP, SPX and SPX-i?" Well, here is a great visual explanation I put together for you for the stator differences.

The SPX on top is a 3 Phase unit which makes it less efficient at producing power along with it having a higher AC ripple current (engine noise) due to it only being a 3 phase unit. (This is why the SPX is cheaper than the XP even though it produces more output than the XP). Due to it being a non-hairpin stator it loses up to 30% of its peak performance when it's introduced into extreme heat.

The XP in the middle is a 6 phase hairpin stator. This alternator features square wire and produces over 200% less noise than the SPX alternator due to the stator design. This alternator is the most efficient alternator on the market due to the hairpin design which allows for less mechanical energy to turn versus a conventional non-hairpin stator. Due to it being a hairpin stator it loses up to 15% less of its peak performance when it's introduced into extreme heat.

The SPX-i on the bottom is a 6 phase stator. This alternator produces a little more noise than the XP, but significantly less noise than the SPX due to it's 6 phase design. This alternator produces higher output than the XP. However, being a non-hairpin stator it loses up to 30% of its peak performance when it's introduced into extreme heat.

I hope this gives everyone a general idea of the differences in the alternators. If you have any more questions, feel free to comment.

Filed under: SPX, SPX-i, XP Series No Comments
3Jul/120

2012 Independence Day Sale

Independence Day Sale

As a big thank you to all of our loyal customers and followers to celebrate Independence Day we are offering the following special:

Any of the above discounts are automatically applied when you click the "ADD TO CART" button.

DC Power Engineering will also be closed from July 4th to July 5th and will re-open the following day (Friday).

Have a Great Independence Day!

25May/122

2012 Memorial Day Special

Memorial Day Special

As a big thank you to all of our loyal customers and followers to celebrate Memorial Day we are offering the following special:

Any of the above discounts are automatically applied when you click the "ADD TO CART" button.

DC Power Engineering will also be closed on Monday May 28th and will re-open the following day.

Have a Great Memorial Day!

30Dec/110

New Years Special

Killer Online Only Deals from December 30th to January 2nd

As a big thank you to all of our loyal customers and followers to celebrate the new year we are offering these specials:

Free DC Power Engineering T-Shirt with the purchase of one of the following products

  1. Any High Output Alternator
  2. Any Dual Alternator Bracket
  3. Any Dual Alternator Bracket Kit
Purchase any of the following below and receive 10% off the following products
  1. Any High Output Alternator
  2. Any Dual Alternator Bracket
  3. Any Dual Alternator Bracket Kit
  4. Our Universal Charge Cable Kit
Interested in just a DC Power Engineering T-Shirt? We are offering 20% off!

Any of the above discounts are automatically applied when you click the "ADD TO CART" button.
Happy New Year Everyone!

 

23Dec/110

Holiday Weekend Special!

Killer Online Only Deals from December 24th to December 25th

As a big thank you to all of our loyal customers and followers, DC Power Engineering is throwing a huge Holiday Blowout!

Free DC Power Engineering T-Shirt with the purchase of one of the following products

  1. Any High Output Alternator
  2. Any Dual Alternator Bracket
  3. Any Dual Alternator Bracket Kit
Purchase any of the following below and receive 10% off the following products
  1. Any High Output Alternator
  2. Any Dual Alternator Bracket
  3. Any Dual Alternator Bracket Kit
  4. Our Universal Charge Cable Kit
Interested in just a DC Power Engineering T-Shirt? We are offering 20% off!

Any of the above discounts are automatically applied when you click the "ADD TO CART" button.
Happy Holidays Everyone!

 

23Nov/110

Thanksgiving, Black Friday and Cyber Monday Sale

Killer Online Only Deals from November 24th to November 28th

As a big thank you to all of our loyal customers and followers, DC Power Engineering is throwing a huge Thanksgiving, Black Friday and Cyber Monday Blow Out!

Free DC Power Engineering T-Shirt with the purchase of one of the following products

  1. Any High Output Alternator
  2. Any Dual Alternator Bracket
  3. Any Dual Alternator Bracket Kit
Purchase any of the following below and receive 10% off the following products
  1. Any High Output Alternator
  2. Any Dual Alternator Bracket
  3. Any Dual Alternator Bracket Kit
  4. Our Universal Charge Cable Kit
Interested in just a DC Power Engineering T-Shirt? We are offering 20% off!

Any of the above discounts are automatically applied when you click the "ADD TO CART" button.
Happy Thanksgiving Everyone!

 

23Nov/110

DC Power Creates Justin Bieber A CUSTOM Cadillac CTS-V 270XP

[youtube]http://www.youtube.com/watch?v=Cek4Y_g4sSs[/youtube]

Filed under: Uncategorized No Comments
9Sep/111

How PCM Controlled Alternators Work

A lot of misconceptions take place when it comes to knowing if, how, and why an alternator may be "PCM Controlled". One of the biggest advantages is when the PCM (Powertrain Control Module) controls the alternator output. When the PCM is controlling the alternator, it adjusts the voltage output along with the amperage output based on the conditions that it's constantly monitoring. One of the biggest advantages of PCM controlled alternators it's able to calculate the battery temperature and adjust the voltage to compensate for the additional heat. As batteries become hotter, the lower they wish to be charged at. By allowing the PCM to control the voltage of the alternator, it will prevent overcharging or undercharging your battery or batteries.

The PCM really starts to shine in high performance vehicles that require a lot of power when under full throttle. For example, the Dodge SRT8 will draw approximately 120+ amps while under full throttle! The PCM can either lower the voltage output to decrease the alternator load, which will provide better engine response, or increase voltage to provide better voltage for various components when needed. The last major benefit of an alternator being PCM controlled is being able to monitor alternator load. When the PCM can sense how much load the alternator is producing, it can properly adjust idle Fuel and Air mixtures to compensate for the additional torque generated from the power being produced.

Benefits for the Car Audio World

Dodge, Jeep and Chrysler Vehicles

We've done idle voltage tests with our XP Series alternators and have seen the voltage start at 14.2 volts and actually increase when the stereo system is playing to 14.9 volts! This gives the amplifiers better voltage to increase power output or efficiency on creating power. Another benefit is since the newer PCM monitors voltage up to 800 times a second, it's almost near impossible to detect voltage drops by the human eye. As long as the alternator isn't reaching it maximum output voltage will remain extremely steady and outperform an internally regulated alternator. We are very impressed with Chryslers new PCM in the way it adapts so quickly to load.

Ford, Lincoln Vehicles

Ford and Lincoln vehicles have now moved over to PCM controlled alternators as well. DC Power's HP and XP Series alternators are 100% compliant with Ford's new 6G PCM Alternators. We haven't seen the voltage increase as we've seen in the Chryslers at idle when playing a stereo system. However, the voltage remains very steady in demanding situations. We've seen that the voltage usually remains in the 14.0-14.4 range continually.

Older PCM Controlled Alternators

PCM Controlled alternators go back to approximately 1991. Even though computers weren't very advanced, they worked great for the stock alternator that the vehicle came with. However, when upgrading to a high output alternator, you can begin to see diminishing returns. What happens is the vehicle's PCM sends Field Current to the terminal block on the alternator. When you get into a higher output alternator, the more field current they require. In general, at about 210+ amps you will begin to see lower voltages.

Bypassing the Dodge, Jeep and Chrysler PCM = More Output

DC Power can provide you with a PCM Bypass kit (Available for Dodge, Chrysler, and Jeep Vehicles only). This allows us to trick the vehicle's PCM into believing that there is an alternator there when really there isn't. Then we take an internal regulator, which will provide the correct amount of field current needed by the high output alternator. Another big benefit to this is our internal regulators are set at 15 volts and when temperature compensation kicks in (just like in the PCM controlled alternators) it will see around 13.8-14.5 volts dependent on the ambient air temperature. In other cases we may bypass the PCM in the newer vehicles as well to provide a dual kit setup to where the alternators aren't fighting at different voltage levels or simply if the customer would like to see higher voltage.