SKU: 33823645657

Holley Water Injection Pump (HO557-100)

Sale price$270.90 Regular price$301.00
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Description

Holley Water Injection Pump (HO557-100)HO557 100 WATER METHANOL PUMP Water Methanol Part Number: HO557 100 Take your forced induction ride to the next level with a Holley water meth injection system! Integrated into the Holley HP and Dominator EFI Systems is the capability to control water methanol injection, allowing you to safely run on lower octane pump gas! What makes the Holley water methanol system unique and light years ahead of competitive systems, is that the solenoid flow has

HO557-100 - WATER/METHANOL PUMP

Water/Methanol

Part Number: HO557-100

Take your forced induction ride to the next level with a Holley water/meth injection system! Integrated into the Holley HP and Dominator EFI Systems is the capability to control water/methanol injection, allowing you to safely run on lower octane pump gas!
What makes the Holley water/methanol system unique and light years ahead of competitive systems, is that the solenoid flow has been characterized within the ECU. Program in an exact flow amount into the software, and that flow is injected into the engine. This is critical to ensure that neither too little (causing engine damage), nor too much (causing a large loss in power) water/methanol mix is injected into the engine. Select the exact percentage of water/methanol mix to be delivered vs. the percentage of fuel flow present, at any RPM and load. This makes tuning a very simple and accurate process.
All components are designed to be compatible with water/methanol mix of up to 50% methanol. The Water/Meth solenoids are run by an injector driver output. If an extra output is not available (as would be the case on a HP ECU driving 8 injectors), PN 554-115 can be purchased that can be driven by a low side PWM output.

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SKU: 33823645657

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4.2 ★★★★★
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Basil tree 45
Fort Morgan, US
★★★★★ 4
Good tips, though possibly over-obvious to some...
Format: Kindle
if you're prone to be a helicopter parent. If you're not, then I would say read it anyway so you can see where other parents might be approaching parenting. It pretty much fits in with other parenting books I've read such as "How Children Succeed" by Paul Tough, and "Grit" by Angela Duckworth. As with any parenting book, how useful you find it depends on what you're already doing. One of the examples that the author uses in the book is that of a kid forgetting his/her lunch at home. If you "rescue" the kid by driving his lunch to school, then there's no motivation for him to remember it in the future. Got it! When I was a kid and I forgot my lunch at home, I was not then able to concentrate at school for fear of my mother's reaction when I got home. She needed to "teach me a lesson" by shaming me for forgetting it, cussing me out, turning it into a moral issue, and giving me the silent treatment for several days. When that's the consequence for forgetting a lunch, then going hungry for a day seems trivial. In fact, it would be less stressful to simply declare that I'm no longer bringing lunch to school anymore so that I can't possibly forget it again, and protect myself from a bipolar parent's mood swings. But some parents can't even let their kids go hungry for the day, even though suffering the consequence's of one's behavior doesn't even feel like punishment. If you had a parent like mine, you would hardly need to read this book, and yet I would recommend it so you can understand what other people's parents are doing. My kid is 2 now. I pretty much let him learn from experience, although I outright ban dangerous and unhygienic behaviors. This book pretty much reinforces my approach anyway.
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Reviewed in the United States on August 2, 2017
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Rebecca
Cuba, US
★★★★★ 5
Infant favorite
Format: Board book
Love the colors, very sturdy.
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Reviewed in the United States on May 27, 2026
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Kathleen W
Grantham, US
★★★★★ 5
We love El Tummy Time!
Format: Board book
The bright colors and pictures are so fun, and the thick board book material makes it durable. Our big kids love to name the animals while baby does tummy time so it’s great to get multiple kids involved.
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Reviewed in the United States on August 23, 2025
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Hanna
Houston, US
★★★★★ 5
Beautiful colors and illustrations!
Format: Board book
I love gifting Sí Sabo Kis books to all my cousins! They love them.
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Reviewed in the United States on June 17, 2025
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Jessica
Phoenix, US
★★★★★ 5
Love it!
Format: Board book
My daughter Loves it. Pretty much the only thing that would get her to do tummy time for a while.
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Reviewed in the United States on December 4, 2025

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