How To Modify R33 Gtr Airbox To Get More Air :)

[Daz]

Hi all,

I have heard that there are ways to modify the standard GTR airbox's to get more air into them.

I want to keep the factory look, has anyone done something? Has it worked? how have you done it?

Thanks

D

[PAV34]

Do you have the attachment that connects the box from the RHS into the guard?

If its the same as the 34 GTR, there will be a cover on the inner guard side of this attachment. You can take this cover off to increase air intake.

[Piggaz]

Whats your current power level and mod list?

[Daz]

Yep sure do

[Daz]

Power level is 422rwks, on 19psi.

Just changed to bigger twins and want to chase 450+ rwks

Why does that matter??? I just want to know how to modify the thing

[KiwiRS4T]

Power level is 422rwks, on 19psi.

Just changed to bigger twins and want to chase 450+ rwks

Why does that matter??? I just want to know how to modify the thing

So you're making 422RWkw with a completely stock airbox? - Good to know!

[r32-25t]

So you're making 422RWkw with a completely stock airbox? - Good to know!

been done plenty of times before

[Daz]

Bump anyone modded the standard airbox on a 33 gtr. Want to keep the factory look but need to flow more air. Pics would be great

[hypergear]

See that cap, once removed its almost as no air box.

[Daz]

Yep removed that already, anything else I can do?

Hmm I might be able to cut out a much bigger hole and a custom larger pipe into the guard

I found that the stock airbox was becoming limiting around 500rwks so I need to custom make something however still need to retain the standard appearance

[GTR_JOEY]

Whats your current power level and mod list?

Power level is 422rwks, on 19psi.

Just changed to bigger twins and want to chase 450+ rwks

Why does that matter??? I just want to know how to modify the thing

It may matter to you that Piggaz car has made a genuine 470rwkw with a standard box and NO modifications. So he MAY have saved you some time and energy

[hypergear]

And induction pipes will make some differences also. Pretty sure there will be positive gain by replacing stock 2.5 inches rubber to 3 inches metal.

[Daz]

Mine wasn't genuine? Lol

Paul tell me your secrets ☺

[GTR_JOEY]

Some are, some aren't so much

[Mick_o]

Yeah piggy has made 472kw stock airbox and even still with the factory paper filter in it!

[scotty nm35]

Trent's dyno isn't accurate, because it isn't in NSW.

Daz at this power level you won't get much help from these guys, how many have cracked 500 let alone on the stock airbox, piping and cooler?

[r32-25t]

He asked for 450+ and piggaz has done 472, now last time I checked 472 is higher then 450?? Which makes the answers provided acurate?

[Piggaz]

The engine side of the gearbox you can modify that to accept a filter then modify the snorkle to feed air over it. It ain't a 5 minute mod though. I don't know the part number for the filter. Haven't gotten that far.

Also tickle the alloy pipes that bolt to the comp housings. I've sent you those pics before I think.

[Daz]

450 was in Jan 2013 things have changed since then ??

[Daz]

Scotty we'll have a look at it in hopefully a week or two ?