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Premium Member
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355 Posts
Discussion Starter #1
PHR is constanly striving to improve the Toyota Supra platform. And on a highly-modified Supra, heat is a problem. With HUGE frontmount intercoolers, high idle speeds, heat drenching turbos and high performance motors all saddled with a hot A/C condenser, maintaining reasonable engine temperature is a real problem. Upraded radiators and fan setups are installed to help to address this problem, but sometimes they still come up short. Airflow must be improved to remove the heat from the motor.

To address these problems, PHR is happy to introduce the highest flowing fan setup ever introduced for the Toyota Supra: The PHR Dual Extreme-Duty Spal Fan Kit. Flowing nearly a combined 3800CFM of air, this fan kit dwarfs any other on the planet.

At high vehicle speeds as airflow increases to the front of the car, if high pressure is built in front of the fans, bypass flaps open to allow even more airflow through the radiator, furthering cooling even more.

The PHR Dual Extreme-Duty Spal Fan Kit comes with a PHR aluminum fan shroud, 2 twelve inch Spal Extreme-Duty Fans, each pulling 1870CFM. Also included is the PHR 100Amp Solid State Relay for fan control using a simple switch or PWM fan speed control (see your ECU capabilities to see if you can use this option). A heat sync is included to keep the relay cool and connectors for the Spal fans.

This fan setup is designed to fit the Supra but will require the following modifications:

Small Battery in stock location or battery relocated to the trunk
Custom Intercooler Piping to route around fans or preferably run through battery location

This fan kit requires 100Amps of current to run so it will not work with the PHR Dual Fan Harness. For high low speed control, take advantage of the PHR 100Amp solid state relay included in the kit.

Available in raw finish or select powder coating or polishing options on the fan shroud.

Note: If running PHR Dry Sump Kit, one fan will be swapped to a slim fan to accommodate the dry sump drive gear. This will reduce overall airflow but will still be a very large amount of air. Keep this in mind when selecting.

Will also fit SC300 with Supra Radiator Installed.








Click Here to Order
 

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boost life
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2,502 Posts
how does this compare to the is300 fan setup with phr shroud that i was about to install which ive had since early last year
 

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boost life
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2,502 Posts
any answer as i would either sell what i have and buy this new setup
 

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Premium Member
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355 Posts
Discussion Starter #5
Sorry for the slow response guys. Our side by side testing has this new kit outflowing the IS300 fan kit by a considerable margin. Not this isn't a very scientific test as we are just blowing air and not on a flow bench but the difference is significant enough to know it's outflowing them by a large margin. Hope that answers the queston.

Thanks,
Bryan
 

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boost life
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2,502 Posts
Ok thx for the reply .. one last question before I decide to sell the phr is300 setup with the aluminum shroud and get this


To get fans to actuate low and high speed control via EMS , do I need to still run the 3 relays fed to this solid state relay or if not how is it all connected to get this high speed low speed activation to work
 

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boost life
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2,502 Posts
If anyone is selling there old PHR shroud to suit is300 fans PM me, I'm looking for a used one.
i would consider if these guys would answer my simple question so i can understand what i would be dealing with
 

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8 second 6 speed member
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1,362 Posts
Ok thx for the reply .. one last question before I decide to sell the phr is300 setup with the aluminum shroud and get this


To get fans to actuate low and high speed control via EMS , do I need to still run the 3 relays fed to this solid state relay or if not how is it all connected to get this high speed low speed activation to work
A solid state usually has a 12v, earth, switch wire and a single duty wire from the ECU. So only 1 or 2 wires from the Ecu depending. No other relays would be required.
That's for each fan, I have wired my IS fans to come on separately at different temperatures.
 

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boost life
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2,502 Posts
A solid state usually has a 12v, earth, switch wire and a single duty wire from the ECU. So only 1 or 2 wires from the Ecu depending. No other relays would be required.
That's for each fan, I have wired my IS fans to come on separately at different temperatures.
I am very mechanically inclined and do all of my own work and also on tons of cars here however , running of relays and electrical stuff is not my strong point. But once I have it clear in my mind conceptually, I can execute installation.

This being said , using this new setup , how is it wired up to get high speed/low speed fan setup to actuate via aem
 

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boost life
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2,502 Posts
usually a solid state relay uses a duty cycle more than a high / low voltage from what I know.

still need a answer or explantion from PHR before i commit to buy this and sell what i have
 
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