Water to the Throttle Body

[LumbChuck]

Is it alright to bypass the throttle body, with the coolant hoses ??

 

[hottscennessey]

short answer Yes

Long answer YESSSSSSS

 

[supra90turbo]

yes unless you're in the arctic.

 

[mrnickleye]

I've been running mine by-passed for 4 months, and right away it seemed I have better throttle responce. Cooler intake air.

As we get into fall weather, it feels like I have 20 more HPs in the early morning.

 

[ViR2]

does any1 have any pic's how to do that?

 

[hottscennessey]

In the diagram, you bypass the existing lines (the ones with arrows) by using another hose which I have drawn in with a thick black line.

(I was going to do it in red, but it wouldn't let me and I didn't feel like screwing with the settings.)

 

[hottscennessey]

BTW I love how small our turbos are in that diagram

 

[turbotrev]

how would it act in the winter would it mess any sensors or anything else when it gets really cold outside like missouri winter weather???

 

[mrnickleye]

I doubt it will effect running in winter. You can always hook it back up if you feel its needed. Its there for emmision control.

 

[hottscennessey]

yea.. several memebers have run it in below zero conditions.

 

[mrnickleye]

I doubt it will effect running in winter. You can always hook it back up if you feel its needed. Its there mainly for emission control.

 

[supra90turbo]

Not so much emission control, as keeping the throttle warm so the condensation doesn't collect and freeze the throttle plate open.
It's happened.

 

[89_turborunner]

Not so much emission control, as keeping the throttle warm so the condensation doesn't collect and freeze the throttle plate open.
It's happened.

Yep. I have never heard of it happening, but this is the correct explaination.

 

[starscream5000]

In the diagram, you bypass the existing lines (the ones with arrows) by using another hose which I have drawn in with a thick black line.

(I was going to do it in red, but it wouldn't let me and I didn't feel like screwing with the settings.)

The new hose that you are implementing in that diagram, it's hard to tell, but is it right in between the intake manifold and engine? BTW, what type of hose do you all generally use when doing the mod?

 

[shaeff]

i did this a few years ago, first with my N/A motor, then with my GTE. it's easy to do, and i just used some of the correct size hose from the parts store.

(i bypassed the ISC too)

-shaeff

 

[KINGPIN33]

i did this a few years ago, first with my N/A motor, then with my GTE. it's easy to do, and i just used some of the correct size hose from the parts store.

(i bypassed the ISC too)

-shaeff

If you bypass the ISC, won't you get a crappy idle? From what I understand the ISC measures the temperature of the coolant and adjusts the idle accordingly. When its cold the idle raises and lowers as the coolant warms up.
Or am I completely wrong at what the ISC does?

 

[s turbo 87]

If you bypass the ISC, won't you get a crappy idle? From what I understand the ISC measures the temperature of the coolant and adjusts the idle accordingly. When its cold the idle raises and lowers as the coolant warms up.
Or am I completely wrong at what the ISC does?

I think it runs through the isc for the same reason that it runs through the throttle body, to keep it from freezing up.

 

[hottscennessey]

If you bypass the ISC, won't you get a crappy idle? From what I understand the ISC measures the temperature of the coolant and adjusts the idle accordingly. When its cold the idle raises and lowers as the coolant warms up.
Or am I completely wrong at what the ISC does?

No, the ECU temp sensor off the thermostat housing measures the temperature, the ECU then opens or closes the ISC valve. I used to think the same thing actually.

 

[rocketman]

Ok im blind i cant see the blk and white.. Does the water lines go to the isc vales and out the Throtle body ..?????????

 

[chriso]

Sooooo, what is the purpose of bypassing these components??? (ISC and Throttle)