DIY cold air intake?

[Viperi]

im really considering doing this somehow. you guys think it would make a difference(more for sound then hp)? ill probally make it out of pvc pipe and also install a p trap with a drain so no water will get forced up.!

http://g35driver.com/forums/engine-drivetrain-forced-induction/351907-diy-cold-air-intake.html

 

[PMG 705]

Sounds like a good idea... Make sure you look up what type of reaction happens when pvc is heated up.. Chloride gas Mmmm.

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TapaTalkin'

 

[Viperi]

Sounds like a good idea... Make sure you look up what type of reaction happens when pvc is heated up.. Chloride gas Mmmm.


TapaTalkin'

ahhh what about abs?

 

[pmanliu]

someone has done that before, i think it was on the .org. However they dragged the tube all the way down to the lower part of the front bumper

 

[AeroBFA]

If you really want to be hardcore, you could remove one of the foglights to draw the air in too, but be careful of water, etc.

 

[Viperi]

If you really want to be hardcore, you could remove one of the foglights to draw the air in too, but be careful of water, etc.

lol nah no hardcore for me. more for fun ( cant really afford a cai atm lol). not sure what to do about the water situation. im thinking of doing it in 3 inch pipe, and putting a p trap at the 90 going up, then a drain with a mini p trap for water to escape.

 

[tchuck]

ABS will be fine. It won't get hot enough in that place to off-gas or melt. Its also way better insulated than the thin vacuum tubing the G35 guy used anyway. The other benefit of ABS is the use of mechanical compression fittings, which are reversible. :thumbup:

 

[Viperi]

ABS will be fine. It won't get hot enough in that place to off-gas or melt. Its also way better insulated than the thin vacuum tubing the G35 guy used anyway. The other benefit of ABS is the use of mechanical compression fittings, which are reversible. :thumbup:

whats that?? i think it would be ok also. it would be as far awaya from the engine.

 

[tchuck]

whats that?? i think it would be ok also. it would be as far awaya from the engine.

That means you can press them together and pull them apart without glue. Just be careful because if you press too hard you'll have to cut them apart.

 

[Viperi]

That means you can press them together and pull them apart without glue. Just be careful because if you press too hard you'll have to cut them apart.

im thinking of plumbing pipe and 90s lol. once routed, ill use abs glue to glue it all up

 

[tchuck]

im thinking of plumbing pipe and 90s lol. once routed, ill use abs glue to glue it all up

I'm saying you don't need glue. ABS fitting are tighter than PVC and will stay in place with compression alone.

 

[kotykb]

I believe the stock intake is good enough, what about porting the intake manifold or polishing the throttle body?

 

[tchuck]

I believe the stock intake is good enough...

Its not. The filter is too small to provide the VQ35 with unrestricted air flow at high rpm, even when its perfectly clean. This issue is magnified with the larger VK45.

 

[AeroBFA]

I believe the stock intake is good enough, what about porting the intake manifold or polishing the throttle body?

Probably better and more cost effective to purchase an aftermarket intake manifold like Kinetix or Crawford for the 35s instead. However, I am currently getting my intake manifold ported and polished on my 45 because there are no other options.