GTR airbox advise

[Canadian GTR]

Hi Everyone,

Just need a little technical support, my GTR is running the standard airbox with a K&N filter. My mechanic is telling me to go for some pods and get rid of the factory airbox.

My car already has an HKS drag intercooler and 3.5 inch exhaust from the turbo. I have been told that the only thing letting the car down is its breathing ability and that I should expect a noticable difference.

Any advice would be greatly appreciated

[predator]

If u do make sure you build some type of cold air intake (see: forced induction area), otherwise you're just going to be sucking in warm air which may give you worse performance.

Some argue pods are a waste of time compared to a good panel filter, but they sound better

[JET-33]

go the pod, ina nice sealed compartment i think u will b better off

afterall, every1 does it, even the top cars, so it must have some benefits

[Leewah]

Air pods will only work well if you box them off. If you don't, you'll get as much hot air in there as with a standard air box. I know of a number of GTRs running stock air boxes which are making mid 11 runs day in and out.

[Canadian GTR]

Leewah

Did any of those GTR's have any mods to their standard airbox,

extra cold air feeds running into their standard box or airflow meters??

[Leewah]

Originally posted by Canadian GTR

Leewah

Did any of those GTR's have any mods to their standard airbox,

extra cold air feeds running into their standard box or airflow meters??

No. Because of the way the airbox feeds from the front of the bonnet anyway, it was cold air already feeding to the turbos.

[fattdex]

is there much induction advantage to be gained by fitting a pod type filter with cold air box in a non-turbo GTS? I've been considering it for a while. mainly because it looks and sounds cool :-)

[Canadian GTR]

Leewah,

I guess what I'm trying to find out is if the standard box provides enough air to the turbos given the mods I have, or would an additional air supply be benificial, say for example if I added another cold air feed from the front bar into the standard box.

Or would that be over kill ??

Cheers

[Leewah]

There is no real such thing as overkill when it comes to feeding the turbo cold air. What you need to try to accomplish is giving the turbo as much air as possible as long as the air is cold and directed in a straight line. Turbulant airflow has a very negative effect on the effectivness on a turbo. We found a 4 rwkw loss by simply removing the air pod. We found that the air pod directed airflow in a less turbulant direction so we left it on.

[Risto]

hehe all i can say is if u slap on that pod go get an engeneers certificate for it or when u get pulled over the nice little men in blue will be putting a nice little yellow sticker on your windscreen, and acting as if there mechanics when there telling you to put back your origanal air filter lol good luck mate you got to weigh up the for and against mate but id put one on anyway

and if your going to do it do it proply with the right filter dont get some REPCO $5 filter just to save money get quality stuff its enhances the performances and last longer as they say you get what you pay for

[Jase]

agreed - standard box with K&N filter works well

nice and legal too

[Canadian GTR]

I think I will leave the box standard and try to feed it more air through the front bar.

If anyone had done/tried this on a GTR I would love to know !

Thanks for the help

[Leewah]

Originally posted by Canadian GTR

I think I will leave the box standard and try to feed it more air through the front bar.  

If anyone had done/tried this on a GTR I would love to know !

Thanks for the help

I know a couple people both in GTRs who run a standard airbox and his best time so far is 11.4@124MPH

[Emre]

and stock intercooler as well.

[Mick Trainer]

If you do decide to change to pods let me know. I will swap you. My pods for your airbox.

Mick.

[Guest RedLineGTR]

from what i've heard stock gtr airboxes are good for abuot 600hp-800hp not sure which one but mines still uses them.

[Canadian GTR]

Thanks everyone,

Thats the great thing about these forums you can chat with people who have been there and done it rather then taking the advise of a mechanic who wants to make more money !!

I'm going to stick with the standard box and get my hands on some cam gears next !!

I will probably need some more help when I get closer to buying them.

Cheers