Just wondering if anyone would have any ideas about a air intake setup for a CA18 into a 1000.  I've hit a wall, need some different ideas.
 

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whats the problem? do you need to fab an intake box up or something?

remove material from the plenum if you have to as it wont affect it at all below 7000rpm
it has enough capacity but if the runners also hit then you best angle shave the secondary
runners that meet the primary. The angle should tilt it up away from the master cylinder.
Best method though is to leave it all alone and fit and underdash MCylinder like Tommoz
did in his 1200 coupe with the ca18det. ITs on the datsun1200.com forums.
Will cost you bugger all in parts and fabrication using wrecker parts.
I will be attempting this soon also as I hate master cylinder in the way of the quad bike carbs 
I have planned on my L16/L18 hybrid using crossflow head.
 
some others also have done 280zx mc under the dash and many more eg.
 
http://datsun1200.com/modules/myalbum/photo.php?lid=380 
 
http://datsun1200.com/modules/myalbum/photo.php?lid=379 
 
this is the setup I want
http://datsun1200.com/modules/myalbum/photo.php?lid=9524
 
heres tomoz jasons setup
http://datsun1200.com/modules/newbb/viewtopic.php?topic_id=42211&viewmode=flat&order=ASC&type=&mode=0&start=0

awesome link ash was a great read.
 
if you haven't got enough room for a booster/master you can run one like d has suggested im not sure of the legalites with that sort of setup tho with it being in the cab, or you can run a remote booster like the old fords a vhf44 or something there called

Datzon, sorry for steering your post towards that custom inlet manifold link.
 
If I was in your position I would be listening to D and start looking into the brake master cylinder swap to the inside of your firewall as your first option.
 
Building a custom plenium is far more hours than it looks, so if your only reason for modifying your inlet is room then I would suggest the brake mod.
One of my mates (datjas on here) and Ricky from Fantasy Performance made an inlet plenium for Datjas's FJ20 1200 a few years back.
Although it turned out well it was alot of hours to get to a finished product.
Link to Jasons 1200 on FJ20.com
 
Before they did this Jason was running a standard inlet plenium with the back end cut and welded up a little shorter to clear his brake master and booster.
It was still a very quick car with that mod.
 
Unless your chasing every little bit of power from your CA18 moding the standard inlet just enought to clear is the most sensible option in terms of hours Vs gain
That's if you are not interested in a brake mod.
 
Again my vote is to go with the brake mod and leave the inlet manifold as standard.

Sorry  guys, I havn't had the time to reply.  I have enough room for a master cylinder and clutch cylinder in the engine bay, all done & dusted.  Its the room I have for an air box to put my filter in.  Once again i'll post some pics to show whats going on, but i'll keep the standard plenium.  I'll try tonight to take some new pics.  Thanks again for the info on a custom plenium, its always an option.

Least of your problems!!! do you need to account for an airflow meter?

Here is how much room I have.  will have to right angle it, air flow meter will make it hard due to the amount of room I have, but also need room for a few vacum hoses.  Need to know how much of a pod filter needs to be covered up.  I'll go & find a small box or make an air box.

You could run either the airbox and the flow meter off something else as mentioned

I also looked at using a Nissan DOHC engine in one of my B10 cars but found that the addition of the overhead cams along with a generous sump capacity meant that the distance from the crossmember to the under-bonnet was a bit on the squeezy side.
 
Since I wish to retain the original suspension I could not cut the crossmember & surgery to add a 'power bulge' to the bonnet was not acceptable, I determined that one of these engines had too many negatives & not enough positives.
 
The solution for me is to utilise a short stroke A13 engine with a few mods,............... Quite a few mods.