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America's Oldest Speed Shop ® 800.979.0122 Lincoln, NE
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800.979.0122

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17.5 Volt Step-Up Box

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17.5 Volt Step-Up Box
17.5 Volt Step-Up Box
17.5 Volt Step-Up Box
17.5 Volt Step-Up Box

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Please NOTE the following about this product:

  • This product is discontinued.

Details

Reviews

Q & A

What's in the Box

If you aren't running the "little black box," you're leaving horsepower on the table. Our little black box is an alternative to running a 16-18 volt battery. The box simply increases and maintains the voltage at 17.5-17.7 volts and supplies the correct amperage at the correct rpm to give you maximum power. 

The box easily connects between your ignition switch and the battery feed wire on your HEI or MSD box. Works with MSD, Accel and other ignition systems. If not built to handle 18 volts, circuitry is protected from damage with the simple, effective and elegant use of an inline fuse.

935-64000 Instructions (PDF)

Specs

  • 4-1/8" x 2-3/8" x 2"
  • Orange Wire: 12 volt input with 15 amp fuse
  • Black Wire: ground
  • Yellow Wire: voltage output to ignition, MSD or HEI, ect.

Customer Reviews

Rated 5 out of 5 by 1 reviewers.
RATING BREAKDOWN
1 reviews
5 Stars
1
4 Stars
0
3 Stars
0
2 Stars
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1 Star
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RECOMMEND THIS PRODUCT:

chuk
Verified Purchaser
philadelphia

power to the powerbox!

September 02, 2011
give your MSD the power it needs! ensure your getting full power to your ignition when your using power items such as a winch. don't stall trying to get out of a jam!
Pros:
  • Easy To Install
  • Increases Power
  • Improves Engine Efficiency
Yes, I recommend this product.
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Product Q&A

1 questions : 1 answers

1 answers

So the electric fans, electirc fuel pumps and electric water pump that's meant for a 12v system or battery will not blow with this box? is that right? F2 Procharger

Stribs
Maryland, USA
June 04, 2014

So the electric fans, electirc fuel pumps and electric water pump that's meant for a 12v system or battery will not blow with this box? is that right? F2 Procharger

Answers

June 04, 2014
EricM
This is not intended to be use for anything but the ignition system. You will wire this right to the ignition 12 V positive power source. All other accessories and etc. will still use the 12V power as they do currently.
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