HOW-TO: Thorttle Body Coolant Bypass

[Alejo_NIN]

First, remove thorttlebody to intercooler pipe.
with car cold, remove the top coolant line on top of the thorttlebody, it'll be the only black hose going into the thortle body on the top
then remove that same line from the coolant block next to the head where the temp sensor goes.

then remove the bottom coolant line from the thorttle body
now use this same line and connect to where you removed the other line on the coolant block where the temperature sensor is.

trust me, it is long enough. now use the other hose and connect it to the top of the throttlebody and then loop it into the bottom one, this way, you can always go back if needed, no need to look for hoses at discount autoparts.

Total time: 20 mins
Total money wasted: $0
Total Coolness Effect: 3 out of 5
Total HP gained: .5Hp and .3 Tq
Weight Reduction: None
Top speed, raised to 200MPH

[ItsSlow]

Top speed, raised to 200MPH

Lol.. Now that makes it worth it..

[fr0st]

wait,

does this remove the coolant going through the TB and keeps it from freezing at very low temps?

can explain what does doing this mod do? all i can think of is removing heat to the TB..

[baconbitz]

does this remove the coolant going through the TB and keeps it from freezing at very low temps?

Yes.


can explain what does doing this mod do? all i can think of is removing heat to the TB..

It lowers intake temps, lower temps=more dense air=more power.

[gone_fishin]

wait,

does this remove the coolant going through the TB and keeps it from freezing at very low temps?


It was just said, but it is supposed to prevent the throttle-body ventury from freezing shut in extremely cold temps. However, we've had numerous members drive their cars frequently in sub-zero temps with a T-body bypass and have had no issues whatsoever.

[gone_fishin]

Total money wasted: $0
Total Coolness Effect: 3 out of 5
Weight Reduction: None
Top speed, raised to 200MPH

lol.



Total HP gained: .5Hp and .3 Tq


A guesstimate I'm sure, but was it noticeable in the least on the driver-seat dyno?

[fr0st]

i did by pass it on my previous NA car .. not much of a diff in temp vs. performance

[orng1]

LOL another free mod.

[1moreMPH]

hahaha you cannot be serious. Oh wait, wait yes he is. I would go out and do this right now, just so i could go drive 200mph after dinner tonight... but im pretty sure our gearing runs out wellllll before 200.

edit: im not following how or why this would be a good thing. help?

[ItsSlow]

It lowers intake temps, lower temps=more dense air=more power.

With it being 100+ here the past few days.. I doubt I would notice anything if the car was running.. lol

[Alejo_NIN]

why would this be a good thing:
on turbo cars the air goes thru the intake at ambient temperature, lets call that temperature HOT, then it goes thru the turbo, where it gets a lil more HOT. Then it travels thru the intercooler where it gets about 70% colder(?) then it travels to the throttlebody where it gets a lil hot again and into the intake which in turn gets the air a lil hot again and then into the cylinders where it definately gets HOT again and out thru the exhaust HOT AS HELL in to the turbo to spool up.

Now, by doing the throttle body coolant bypass, one could guess that the part above in bold could be eliminated thus not heating the air a little more. then the air would be that much cooler when entering the intake mani and bla bla bla

you guys know the story..

this is all theory.
not dyno proven.

do at your own risk

[fr0st]

either way.. at wot, if if a throttle body that measures what? 4 -5 inches long? even if it was red hot, at 600 CFM flow the air wouldn't have time to heat up to a significant uprising..

so even if the TB is at 120 F - 150F , no way it will do anything.. exept keep the TB from freezing when below freezing point ;)

and we have a very cold climat here and i did that bypass mod on it and had a cone filter... it never frozxe the TB what so ever at -37... so its pointless :)

[1moreMPH]

im still not grasping this, it seems you are doing one thing, but explaining another.

Coolant cools shit. Wherever it flows, it's job is to take heat away, correct?

If it flows through the TB, it should be COOLING it, not HEATING it up... So now if you take that coolant away, you took the method of cooling it, to whatever degree, away! So when doing this would you not actually be making the intake temps a few degrees warmer because the TB is warmer???

UNLESS you are saying that the TB heat doesn't really affect the intake temps that much (i agree). So therefore by taking the coolant line away from it, it then heats up the coolant less and the coolant will then better cool everything else...

Am I way off here or what? (sorry Alejo haha)

[Darkjocker]

Some Pics ???

[Alejo_NIN]

SORRY DUDE, but you are way off.

why, you may ask, my little friend.

well, because coolant is at

160-180 degrees farenheit!!, that's why!!

now, is COOLANT cool, well, jeez, i don't know...have you ever touched 160 degree water? i guess not, why? coz 160 degrees is fucking HOT.

now, the air...beutiful, everyday air...temperature?
i might say somewhere between -40 to 95 degrees.
is that cold? well, RELATIVELY cold, as einstein would've said it.

why is it cold? well..imagine being at 160 degrees and having a a/c that cools that air to 95, would that be hot? no...the air would actually feel COLD..why? coz is 160 DEGREES!!!

now, does the coolant bypass help at all?
yes, i would have to say that yes. why? coz as stated before:

COOLANT IS FUCKING HOT!
and whatever heat you can remove from the air is a good thing.
thin about CAI...is there a point? well yes..
on the top it looks as if CAI are pointless on a turbo car....why? well

you take COLD air, put it on a 1200 degree oven(turbo) then take it to an intercooler to cool it down again and then take to the throttlebody which is around 160 degrees and into the manifold.

why take COLD air if it is still going to go into a 1200 degree oven?
because whatever heat you removed with the cold air, is still less heat that's added by the turbo.

that's my opinion tho...

hope you understand me and don't get mad at the way i said it....
just have a laugh
im still not grasping this, it seems you are doing one thing, but explaining another.

Coolant cools shit. Wherever it flows, it's job is to take heat away, correct?

If it flows through the TB, it should be COOLING it, not HEATING it up... So now if you take that coolant away, you took the method of cooling it, to whatever degree, away! So when doing this would you not actually be making the intake temps a few degrees warmer because the TB is warmer???

UNLESS you are saying that the TB heat doesn't really affect the intake temps that much (i agree). So therefore by taking the coolant line away from it, it then heats up the coolant less and the coolant will then better cool everything else...

Am I way off here or what? (sorry Alejo haha)

[1moreMPH]

alright, that makes sense then thanks lol. Sometimes ya just gotta smack me around a lil! And while i can't say i agree as to this helping much (since air rushes by the TB so fast) i see your logic. Fair enough. And you know what i might just go out and do this, just for the fuck of it. 200mph here i come not!

[Alejo_NIN]

that's why i said it gives you 200mph and gives you .5 hp

because in my opinion, it is worthless

what good does it do? nothing.
i still did it tho...
intake many is a lil colder to the touch now wihtout the heat from the TB...i guess that heps a little bit.

free mod for the WIN
ebay charging $11 for the LOSE

[1moreMPH]

ebay charges for that, what???

[Alejo_NIN]

oh yea, this all started on another thread about some kid wanting to buy the "kit
off ebay.

[gone_fishin]

The colder an intake charge, the more dense the charge is. The more dense the charge, the higher PPM oxygen concentration there is. The more PPM oxygen, the more efficient, complete, and powerful combustion is.

How much of an effect would a T-body bypass have? Likely a negligable one. However, as someone else said-- every little bit helps. People have been doing T-body bypasses for quite a while, on all types of cars both domestic and imported.

[Alejo_NIN]

The colder an intake charge, the more dense the charge is. The more dense the charge, the higher PPM oxygen concentration there is. The more PPM oxygen, the more efficient, complete, and powerful combustion is.

How much of an effect would a T-body bypass have? Likely a negligable one. However, as someone else said-- every little bit helps. People have been doing T-body bypasses for quite a while, on all types of cars both domestic and imported.

X2
agree completely....
is a mod that doens't hurt your wallet and it doesn't involve cutting anything. you an always go back and get it back to stock under 5 minutes

[Professor MSP]

First, remove thorttlebody to intercooler pipe.
with car cold, remove the top coolant line on top of the thorttlebody, it'll be the only black hose going into the thortle body on the top
then remove that same line from the coolant block next to the head where the temp sensor goes.

then remove the bottom coolant line from the thorttle body
now use this same line and connect to where you removed the other line on the coolant block where the temperature sensor is.

trust me, it is long enough. now use the other hose and connect it to the top of the throttlebody and then loop it into the bottom one, this way, you can always go back if needed, no need to look for hoses at discount autoparts.

Total time: 20 mins
Total money wasted: $0
Total Coolness Effect: 3 out of 5
Total HP gained: .5Hp and .3 Tq
Weight Reduction: None
Top speed, raised to 200MPH

I have read this several times now, and it appears to me that one does not have to remove the top coolant line from the top portion of the throttle body.

Rather, it seems that one could just (i) detach the end of the top coolant line from the coolant block next to the head where the temp sensor goes, (ii) unhook the bottom coolant line from the thorttle body, and (iii) then just interchange the locations of these two unattached coolant lines.

Comments?

[Alejo_NIN]

absolutely right, i was just too lazy to go back and edit those parts of the how-to...but yes...that's the idea
I have read this several times now, and it appears to me that one does not have to remove the top coolant line from the top portion of the throttle body.

Rather, it seems that one could just (i) detach the end of the top coolant line from the coolant block next to the head where the temp sensor goes, (ii) unhook the bottom coolant line from the thorttle body, and (iii) then just interchange the locations of these two unattached coolant lines.

Comments?

[Professor MSP]

absolutely right, i was just too lazy to go back and edit those parts of the how-to...but yes...that's the idea

Great,and thanks for replying so quickly! I will do this today.

[bruster4_5]

can u get some pics up of this??