Mounting a FMIC

[ajmck]

Having just purchased a Hybrid FMIC kit I was a little dismayed to learn I had to cut a 3" hole in the front of the chassis rail, so that the return pipe can be plumbed to the standard throttle body. Having spoken with the shop I bought it from, they said that it was normal procedure for most front mounts to have to do such a thing, which I guess was to be expected.

I however was wondering if this is what any of you guys have had to do, and will cutting a hole in the chassis rail affect the roadworthiness of the car? Having read the thread about the 3 week blitz on imports in Melbourne I’m not really interested in any nice yellow windscreen decals if you catch my drift…

[knore]

Where you cut the whole is only like 1mm thick steel, so it wouldnt alter the strength or weakness of the car at all.

If the police are looking down in there, then there is alot more things you will get defected for anyway.

Never heard of defect for that tho

[Ronin 09]

You should NOT be cutting the actual chassis rail.

The cut-out is just sheet metal, you should never cut a chunk out of the chassis rails!!

[ajmck]

So in the attached picture this is not the chassis rail??

[boj01]

no thats just a bit of sheet metal as such, just in front of the strut tower

[Anquetil]

Thats a pic of my piping, heres a closer look at where it enters...

http://users.bigpond.net.au/r33skyline/r33...cinstall/13.JPG

[Terminal]

when i bought my car it had a 3 inch hole cut into the side of the chasis rail. i don't have an FMIC, but someone must have had one there during the cars lifetime. i didn't know what it was until i realised it was for an fmic. it's not sheet metal i can tell you that. my car passes raodworthy and everything with it, i don't think they even see it down there.

[knore]

Well there is no way that its any kind of support or main structure of the car. As its only 1mm thick. I cut it with a door hole drill attachment with no problems!

[TeamKrazy]

i recently fitted a blitz cooler to my car it has areturn pipe to the oginal holes

very cool, very simple and works like a purler

some pics here

http://www.teamkrazy.com/forum/viewtopic.php?t=1796

[lwells]

i recently fitted a blitz cooler to my car it has areturn pipe to the oginal holes

very cool, very simple and works like a purler

some pics here

http://www.teamkrazy.com/forum/viewtopic.php?t=1796

For 2-3 times the price, is anyone suprised?

LW.

[ajmck]

Yeah nice set up Team Krazy, but for just over $1k i'm pretty happy. You'd be surprised how thin the rails are trough the cab area are knore. And You'd be hard pressed to get picked up on it, but my fear is that i'll be the lucky one that gets canneries and have some major problems getting her back on the road (ie permanently un roadworthy... crush town.) Now i'm being an over paranoid engineer... At the end of the day i've bought it, I'm gunna use it, just looking for advice

[Ronin 09]

mine was bolt on too... none of this liquid nails crap...

sorry. I am tired :|

[darkprince]

how would anyone cut that 3" Hole?

i had thoughs about it, but it seems a bit too hard!

[YBSLO4]

a 80mm holesaw and a decent power drill and a bit of WD-40... it aint that hard. An i think i'd be worried about getting canaried for the cooler rather than the hole for the piping...

[Blitz]

Cutting into your own car is always hard.

But the process of cutting the hole is a peice of cake, a 3 inch hole saw attachement and a decent drill as people have already mentioned, is all you need. I would also grab some soft rubber tubing that you can split and use to run around the edge of the hole you cut, covering the sharp edges and giving it a tidier look.

[darkprince]

how thick is that piece of metal???