Throttle Body Bypass

tallkid · 12-29-2007, 08:29 AM

As stated in a few other threads, coolant runs through our throttle body. This is to prevent the throttle body from freezing shut during the cold season. There are a few guys on here that run their cars all year 'round with it bypassed.

The idea is that the coolant heats the air up that goes through the throttle body. This can't be good for performance, so why not bypass it and get cooler air into the engine...

The procedure is simple. Let the car cool down so coolant doesn't fly everywhere when you take the hoses off.

1. Use pliers to move the hose clamps away from the nipples on the throttle body.

2. Gently pull both hoses off the throttle body.

3. Use a hose splicer and hose clamps to connect the two hoses together...you can also buy a new 3-4 foot hose and replace the original two hoses with one.

I did this mod with half a tank of gas and got 27 mpg. This is with the A/C running (defroster) 90% of the time that I'm driving. Last week I got somewhere between 24-25 mpg. I'm not driving like the EPA guys, either.

lamborgini112 · 12-29-2007, 02:15 PM

wow i'm doing this tommorow lol any chance you could throw a pic up?

Audacity Racing · 12-29-2007, 02:41 PM

There was one...

Audacity Racing · 12-29-2007, 02:43 PM

Imageshack isn't responding very well... I'm sure the photo will be back before long

lamborgini112 · 12-29-2007, 02:51 PM

did you notice any increase in power as well as fuel economy? I'm still gonna do it just to save a buck but hey if it's a win win

kinkyllama · 12-29-2007, 04:48 PM

Quote:

Originally Posted by lamborgini112

did you notice any increase in power as well as fuel economy? I'm still gonna do it just to save a buck but hey if it's a win win

I don't think you'll notice anything, I didn't. But think about it, with the OE setup you weren't losing power untill the car got heated up and the hot coolant ran through there. So it's not something you could notice an immediate difference. Also I bet the engine will heat up that TB pretty damn hot after a long drive/run on a warm day anyway, which is where Garretts gaskets will really come in handy.

tallkid · 12-29-2007, 11:02 PM

i didnt notice a damn thing with performance...one thing i did notice is that when my temp gauge is about 11 o'clock(normal running temp) and turn the heater on, i can watch the temp go down...and it takes a longer period of time to get to that 11 o'clock state compared to normal. the heat shields would make this mod more effective. it would prevent heat getting to the throttle body all together.

and yes, there were pics but they somehow got fubar'd....

lamborgini112 · 12-30-2007, 12:06 AM

thanx a bunch totally what i'm doing tommorow lol good pix too.

kinkyllama · 12-30-2007, 12:27 PM

Quote:

Originally Posted by tallkid

i didnt notice a damn thing with performance...one thing i did notice is that when my temp gauge is about 11 o'clock(normal running temp) and turn the heater on, i can watch the temp go down...and it takes a longer period of time to get to that 11 o'clock state compared to normal. the heat shields would make this mod more effective. it would prevent heat getting to the throttle body all together.

That's how my car is in the winter...Unless I'm driving in extreamly annoying stop and go traffic it stays at 1/4 for the temp. My fans don't even work and my car hasn't started over heating since winter hit. Cruising on the freeway and the temp will drop a little below 1/4 mark

exist3nce · 12-30-2007, 08:58 PM

Whoa I just noticed your ECU looks quite a bit different than my 2004 model. First time I've seen a closeup of the new ones.