Installing Quantum Solenoids - Toyota C-HR Forum
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post #1 of 11 (permalink) Old 02-24-2020, 04:05 PM Thread Starter
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Installing Quantum Solenoids

I am installing some quantum solenoids today for my CH-R

For those of you that do not know what it does. Here is a brief description.

Increases engine torque output for a wide range of engine speeds and increases power. You will feel the power difference right away after installing Quantum Solenoid. Engineers design the engines for maximum power, but manufacturers detune the engine for many reason. Quantum Solenoid helps to unleash the performance potential of the engines bringing your cars to life.


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post #2 of 11 (permalink) Old 02-24-2020, 05:44 PM
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Are you doing both the intake and exhaust sides?

I looked into doing this mod. But wasn't sure if the price of admission would be worth it. They do post up dyno charts of what one would expect. But the dyno charts don't say if this was just the intake solenoid or both. If it's both, it's way too much money for the gains for me to want to spend the money.

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post #3 of 11 (permalink) Old 02-24-2020, 06:29 PM Thread Starter
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Originally Posted by zx10guy View Post
Are you doing both the intake and exhaust sides?

I looked into doing this mod. But wasn't sure if the price of admission would be worth it. They do post up dyno charts of what one would expect. But the dyno charts don't say if this was just the intake solenoid or both. If it's both, it's way too much money for the gains for me to want to spend the money.
the quantum solenoids for the CH-R are both intake and exhaust. I think it is well worth it for the gains you get
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post #4 of 11 (permalink) Old 02-24-2020, 10:50 PM
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the quantum solenoids for the CH-R are both intake and exhaust. I think it is well worth it for the gains you get
I went back to check on pricing on Quantum's website. They're not offering the solenoids individually any more. But selling them as a package. But for $500, I still think it's pricey for the gains.

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post #5 of 11 (permalink) Old 02-25-2020, 06:40 AM
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5 hp and an extra 2 footpounds of torque for 500 ......nah . the torque number is where you really want your biggest increase and its just not there .
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post #6 of 11 (permalink) Old 02-25-2020, 07:41 AM
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To be fair, the dyno is power at the wheels and not power at the crank which is what many companies advertise. Also, absolute peak power/torque isn't everything. It's also about the increases throughout the RPM operating range. Looking at the dyno chart, there is an improvement throughout the RPM range.

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post #7 of 11 (permalink) Old 02-25-2020, 01:34 PM Thread Starter
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Originally Posted by zx10guy View Post
I went back to check on pricing on Quantum's website. They're not offering the solenoids individually any more. But selling them as a package. But for $500, I still think it's pricey for the gains.
the main reason why is because it is not beneficial to only run 1 of the solenoids for $250.
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post #8 of 11 (permalink) Old 02-25-2020, 03:38 PM Thread Starter
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Originally Posted by joe doe View Post
5 hp and an extra 2 footpounds of torque for 500 ......nah . the torque number is where you really want your biggest increase and its just not there .
the main thing to be looking at is the rpm range as zx10 said but i installed it for the better mpg.
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post #9 of 11 (permalink) Old 02-26-2020, 08:14 AM
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Garage
Are you planning to do a full install write up with butt dyno results? I agree that this is fairly steep for small gains, but I'm somewhat desperate for a little more pep in Cranston's step.
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post #10 of 11 (permalink) Old 02-26-2020, 05:30 PM
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the main thing to be looking at is the rpm range as zx10 said but i installed it for the better mpg.
I'd love to hear about the better mpg! Any charts to share yet?

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