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Hey i was wondering if anyone has made a custom air feed for the standard airbox? I got a front mount where the piping goes around to the front near the radiator and the standard air guide does not fit. Any suggestions would be great. Car is an r33 gts-t by the way.

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most people just trim a bit of the snorkel so it clears the piping

problem with the 33's is the top half of the box is the air feed, so you need to tap into that to be able to run a custom CAI on the std box.

Check out the Custom Fibreglass Enclosed Airbox And Snorkel For Gt-t, Ghetto Gruppe M thread in this section (http://www.skylinesaustralia.com/forums/Custom-Fibreglass-Enclose-t261635.html).

It has a few ideas in there. Any fabrication work you end up doing might not actually improve much over the standard snorkle if you're restricted by room. The standard snorkle is actually pretty restrictive. You may be better off spending a little money on getting the I/C piping to return to stock I/C piping locations. You can then do a snorkle mod and get more beneift from it do to the extra room and less restriction.

Thanks for the ideas guys. Only reason i want to keep the standard airbox is because my car will have close to 300kw and i do not want a cop to even think about sending me to a epa test. So i really cant go with a custom box as it will arouse some sort of suspision, i was also thinking or re-routing the intercooler pipe to go over the top of the engine to use the standard air guide and to do a home job of porting it myself to make it as wide as possible.

Craved, yea i know its a problem that the air must enter from the top of the airbox, would be so much easier if you could just go in from the bottom. Ill try to speak to my mechanic and see if he has any ideas.

If you don't want any suspicion from the police then don't wash it much/paint your car silver and don't make it stand out :P

I haven't installed my custom snorkle/airbox lid yet as I still a few things to change. But I have increased the size of the inlet to the lid and internal cross section of the snorkle. If you make your piping run behind/underneath your I/C and back to the standard piping it is going to stand out much less than any non-standard looknig piping running over the engine. You can then use a larger custom snorkle etc to cover some other things slightly it you're concerned.

If my setup doesn't provide a great gain then I still have the option of changing the lower section. In standard form the AFM is set quite a long way into the box. This blocks off a lot of potential area of the filter. Mounting it further back will free up this filter area. The inlet pipe will need to be altered also so it would take a bit of stuffing around. This would only be needed though if there is no major drop off in boost/power high in the rev range. If it doesn't drop off then it should mean it's flowing well enough not to be an issue.

Pictures%20from%20upstairs%20236.jpg

http://plazmaman.com/shop/index.php?action...m&itemId=13

I inquired a while ago and they were willing to just sell the pipe from the tb to the inner gaurd, i ended up buying a blitz return flow fmic instead.

  • 1 month later...
does that actually work ?

It would work if you have a filter on the end of the pipe and you are not using the standard piping set up going through the gaurds, the same set up used with fmic's to avoid cutting holes in your inner gaurd to route the piping over the engine.

  • 3 weeks later...
  • 3 weeks later...
Doesn't the R31 have the filter below the afm? maby someone could make it fit the R33. then could use that hole from the factory cooler pipe as a cai, while still looking stock.

negative, same set up as a 33

Fit a pod on the air intake pipe inside the stock airbox, then cut a hole in the airbox and run some piping from the airbox to somewhere down the front. It's cheap to do and retains that factory look if you don't look too hard.

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