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Throttle Body Coolant Bypass

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100K views 171 replies 55 participants last post by  Honhon  
#128 ·
honestly if you are somewhat mechanically inclined and have a little time, draining the coolant, taking the throttle body and intake manifold off isnt too hard and you can bypass both the throttle body and intake manifold ports and get even better results!

heres a quick torque screen shot from this morning. speed was about 60mph


also... i have the stock cold and hot pipes... cold pipe should be on the way from X soon and i am part of batch #3 for the new hot pipe
 
#130 ·
sorry no logs... honestly in the year i've owned the torque app thats the 3rd time ive used it... the first 2 times were to clear a CEL on my car and then a 2nd time to clear a CEL on a friends car after we fixed an oil pressure sender.

it took me 10mins to figure how to change it from C* to F* lol...

my dash said 70* out this morning so im assuming the torque app is hitting really close to actual... i want to add RPM and speed to this screen so when i screen shot it'll have more data if people have questions...

also right after that screen shot, i went to 65mph and it dropped to 87degrees...

now that i actual know somewhat how to use this app ill probably try a few things... maybe wrap my intake pipe and see if that makes a difference...

makes me wonder if getting some of that gold reflective tape and then taking the intake manifold off and putting the gold reflective tape on the underside of the intake manifold would help shield heat from the block... and it would still be steathy
 
#134 ·
if you want to just do a quick bypass of the throttle body, all you need is the elbow and clamps.

with what i've been talking about is i went a step further and removed the intake manifold and removed the coolant hoses that are connected to the back of the intake manifold and i put in a new hose from the oil cooler to the water neck to bypass both the throttle body and the intake manifold
 
#135 ·
still playing around with torque and such here... i went to data log my drive to pick up my daughter to show temps, speed and coolant temp but i guess i didnt have data logging setup properly on my phone... so i believe i have it setup correctly now so i will do a log tomorrow on the drive to work to see the difference in temps.

i dont let my car sit idling like a lot of parents do during picking up kids... but my intake temperature highest reading was 154 degrees... coolant temp never went above 188 degrees and after a little bit of driving intake temp dropped to 130's then continued to drop as i got to the faster roads closer to my house... lowest reading i saw was 107.

this was all when the car dash was saying 89/90 and torque was reading ambient temp as low 90's i can only assume torque is using the readings off the temp sensor that the car has and maybe its just reading it a different way... idk... but between 50 and 65mph i was only getting a 16 degree raise in intake temp from ambient. i would say my driving average was between 109 and 113 intake temp after the heat soaked intercooler was cooled off a little
 
#144 ·
RckyMtnBoost said:
What size hose and what length, did you have to get for the bypass of the intake manifold?
Click to expand...

when i bypassed both i believe i used 1/2 heater hose.. it was about 1 1/2 feet long, maybe a little more... the hose didnt fit entirely snuggly on the block or oil cooler barbs, but when you are disconnecting the stock lines, you can reuse 2 of the smaller quick clamps and they will help seal the 1/2 hose onto the barbs nicely...

the smaller clamps are a little pain and even more painly to get over the knubs on the barbs, but its all for a better seal in the end... so far... knock on wood... no leaks.
 
#145 · (Edited)
i typed out what i did in my pictures in the description... i know not as good without pictures or videos and such... honestly i tried to make a video, but i noticed after 10mins of talking to myself in the garage when my camera battery died after 2mins after turning it on, didnt leave me in the lets take a break and charge the camera mood.

kinda sucks... i really wish i would have pursued making sure my camera was fully ready to go, but my time is extremely limited for extra things and will get even more so in the near future.

maybe in the future if i ever do get time... maybe if i ever get the ability to do the 60mm throttle body, maybe ill take some extra time and pull the manifold off and show everything... honestly it is pretty easy... just cant be scared
 
#154 · (Edited)
RckyMtnBoost said:
Hey guys, has anyone done the TB Bypass and the intake manifold bypass? If I bypass both, it this the correct routing and if so, what do you recommend plugging the nipples (on the intake where the hoses used to connect from the TB and the Oil Cooler) with? I've drawn a red line where I suspect the routing should go but if I'm wrong, let me know. I'm guessing the Oil Cooler is on top of where the oil filter screws in? View attachment 53537
Click to expand...
heres the final routing of my hose... i put a ziptie around the 2 oil cooler hoses where the new hose curves to the driver side just to keep it tucket close to the block so the intake manifold didnt interfere with it.

yes the oil cooler is the part that the oil filter screws into... honestly in the future im thinking of bypassing the oil cooler completely and going with a full aftermarket oil cooler... no reason i see to have coolant and oil heating eachother up.

i did not cap the nipples on the intake manifold or the throttle body as they are pretty much tubes molded into the plastic of the intake manifold and a channel into the throttle body.... in the future i plan on shaving the nipples off both... maybe if i pick up a 3/8 line i will do that at the same time.

i re-attached your image with how i routed my hose

after you do the manifold once... if you drain the coolant while doing this, it pretty much takes only about 15mins to pull the manifold off
 
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