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Greddy Plenum

116.hks

By 116.hks,
in Engines & Forced Induction

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116.hks Community Regular

116.hks

Posted
Posted

Hey guys. Was just wondering if anybody could shed some light on whether it is important to have the solid water pipe connected to the bottom of the plenum. I have had the plenum on the car for a while now, but would like to keep as much heat away from the plenum as possible, as I believe this is the reason skylines have hot start issues (pending on mods). (Mine doesn't have that problem, as my tuner has rectified that when he done the tune)

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axe s Experienced

axe s

Posted
Posted

I don't think i fully understand what you mean...

The pipe underneath the plenum that connects to the 3 inlets on the plenum,

If that's what ur talking about i think it's pretty important, considering that your coolant comes into the plenum then into the motor..

if you were going to modify it, it would be a pretty big job...

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sickr33 Rising Star

sickr33

Posted
Posted

the reason for the coolant passing around the throttle body's is to stop them freezing solid

think about it Japan is so dam cold.

but in Australia you shouldn't have a problem and it had been proven that you can gain power by bypassing the throttle body/s.

its easy i did it in my r33 gtst just find the entry and exit points either side of the throttle body/s and join them together.

i used a length of 6mm copper pipe.

i will be doing the same with my R32 gtr when i get a chance!!!!

WARNING!!!! Although you can get power gains there are some side affects you must know before doing this mod.

there is a chance that you throttle body/s may freeze in position on a cold night.

if this ever happens it is a very scary experience as the car will keep accelerating even after you take your foot off the throttle!!!!

the easiest way to get out of this situation is to stab the throttle to the floor and then back off again. this breaks the throttle body free of any ice and will return to normal.

the only other side affect is that the car cold start function will take longer

meaning the car will idle high for a bit longer than usual and it takes longer for the cold start valve the heat up as it no longer have coolant flowing through it.

hope this helps.

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https://www.sau.com.au/forums/topic/300023-greddy-plenum/#findComment-4990836
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axe s Experienced

axe s

Posted
Posted
the reason for the coolant passing around the throttle body's is to stop them freezing solid

think about it Japan is so dam cold.

but in Australia you shouldn't have a problem and it had been proven that you can gain power by bypassing the throttle body/s.

its easy i did it in my r33 gtst just find the entry and exit points either side of the throttle body/s and join them together.

i used a length of 6mm copper pipe.

i will be doing the same with my R32 gtr when i get a chance!!!!

WARNING!!!! Although you can get power gains there are some side affects you must know before doing this mod.

there is a chance that you throttle body/s may freeze in position on a cold night.

if this ever happens it is a very scary experience as the car will keep accelerating even after you take your foot off the throttle!!!!

the easiest way to get out of this situation is to stab the throttle to the floor and then back off again. this breaks the throttle body free of any ice and will return to normal.

the only other side affect is that the car cold start function will take longer

meaning the car will idle high for a bit longer than usual and it takes longer for the cold start valve the heat up as it no longer have coolant flowing through it.

hope this helps.

He's not talking about the T/B pipe... he's talking about the galleries in the plenum...

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