Interesting enough. I'll let someone else be the guinea pig first though before I try something similar; I've become quite attached to my current ProFlow TB/Injen main pipe/UPFD extension setup, and don't want to compromise it just yet by messing with it.
1MZ cooled throttle body mod
4
Many people have debated whether or not the coolant bypass mod is worth doing. Is there actually an increase in power with this mod in place? The theory is sound as with every 10 degrees cooler that your intake air charge is you will see roughly a 1 HP increase. When you engine warms to normal operating temperature hot coolant is being passed through the throttle body warming the air charge and robbing power. Nathan Morris, in a post on www.ultimateresourceguides.com actually showed a gain of 10lb ft of torque with this mod is place that disappeared once his Integra LS engine reached operating temp. See dyno sheet below.
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Of course there may be other contributing factors to the stronger pull with a cooler engine, the basic fact remains that a cooler air charge = more power.
This fact has been enough to convince many people to make use of the coolant bypass mod. I propose that this mod be taken one step further to keep intake temps from rising due to other influences such as direct and indirect radiant heat from other hot engine components.
Here is my idea:
1- Go ahead and bypass the throttle body coolant lines as you normally would with this mod by simply disconnecting the input and output lines and connecting them to eachother with a suitable fitting.
2- Get yourself a universal trans cooler like the one below for cheap from ebay.
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3- Now get a cheap 12 volt marine water pump from ebay like the one below.
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4- hang the new cooler behind your grill using ties like these.
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5- Connect the cooler to your unused coolant lines at the throttle body and put the 12 volt marine pump inline. Connect switched power to the pump and mount it. Fill the system with the same water and coolant mix that you normally use depending on your climate. Your done.
I would have to say that this mod would indeed lower intake temps by a significant margin over simply using the coolant bypass mod. incontrovertibly this would add some power. How much I cannot say. However this would certainly be a great compliment to any CAI set-up.
Of course there may be other contributing factors to the stronger pull with a cooler engine, the basic fact remains that a cooler air charge = more power.
This fact has been enough to convince many people to make use of the coolant bypass mod. I propose that this mod be taken one step further to keep intake temps from rising due to other influences such as direct and indirect radiant heat from other hot engine components.
Here is my idea:
1- Go ahead and bypass the throttle body coolant lines as you normally would with this mod by simply disconnecting the input and output lines and connecting them to eachother with a suitable fitting.
2- Get yourself a universal trans cooler like the one below for cheap from ebay.
3- Now get a cheap 12 volt marine water pump from ebay like the one below.
4- hang the new cooler behind your grill using ties like these.
5- Connect the cooler to your unused coolant lines at the throttle body and put the 12 volt marine pump inline. Connect switched power to the pump and mount it. Fill the system with the same water and coolant mix that you normally use depending on your climate. Your done.
I would have to say that this mod would indeed lower intake temps by a significant margin over simply using the coolant bypass mod. incontrovertibly this would add some power. How much I cannot say. However this would certainly be a great compliment to any CAI set-up.
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1 - 11 of 11 Posts
