Throttle Body Coolant Bypass Options

[4-eyed-freek]

i found this on the internet and ive seen some of you guys talking about it on here, can anyone tell me how to do this with a picture from a celica, a 5s pic would be great!!



Throttle Body Coolant Bypass

This is perhaps one of the best modifications that you can do for basically nothing. As you'll see in the dyno below, which is of my Integra LS motor in a 92 Civic hatchback, before and after: I got back almost 10ft-lbs of torque over the entire rev range. 10ft-lbs that was present in the engine when completely cool, but once at operating temperature was no longer available. This is good for about 0.2 seconds in the quarter mile in my particular vehicle - needless to say I'm very pleased with this modification.

Above you see a diagram( i dont have the pic sorry) of how coolant normally flows through a throttle body (illustration is from an Accord). All you need to do on any vehicle is to take those two coolant lines, disconnect them from the throttle body and connect them with a coupler available in the vacuum hose section of your auto parts store. It's basically two nipples connected to each other that allow you to connect two pieces of coolant hose.

[bccentaur3]

Or just loop the hose from the coolant bypass pipe. Thats where the coolant comes from to the throttle body. Its there to warm up the throttle body in the winter. I live in MN and looped the lines, had no ill effects on the car in the winter, but felt zero difference.