Bezman, I hear you man but I dont want to use the
ugly dizzie sticking out if we can rework the cleaner
and factory setup to work with carbs.

i am looking into running rb26 throtle bodys that
look to be std side draft patten on my webber manifold
bellmouthed into plenem, boosted/NA will work on both
injected ,std computer nistune
custom look mint,sound mint,breath mint,one off made
to fit
do your homwork and nothing is hard

like i said, if you wanted to do a good job of it you would want to stay injected and go quads

The main problem i could see with using quads and the standard computer is that its set up for an AFM. Which you dont usually have with quads as you usually dont have a plenum. Quads with a plenum would be easy as you would just run the AFM and be done with it, thats how much stock cars with ITBs are im pretty sure

But then you dont get the sound or all of the power benefits(unless you go a massive plenum but then the afm would probably have issues)

Id either do like tommo said and get some gtr throttles, which i have also heard are webber pattern
or if you want even cleaner ones go for bike throttles which are alot less cluttered, smaller and lighter. Probably also cheaper

You would want to speak to someone that tunes the stock computers, Dr Drift, and see what they think about how it will respond with a lack of sensors
You would possibly be able to redo some parameters so that it wont just go into limp mode when it doesnt have certain signals

But at the end of the day it would be easier to just go an ignition only ecu, which you should be able to get them to fun off most stock CAS's and then just set the advance dependant on the RPM and maybe throttle position

I actually really want carbs!!!! I want to see minimum
wiring so no injectors, fuel rail and minimum lines.
Id definitely do as you guys say if going efi but would
love to get use the stock CAS with modded brain.
I already contact Nistune using their online form thanks Jason just the wait could mean they arent interested.
Is there a local mob or freak that can help? otherwise i
eill have to go Megajolt Jnr but will need crank CAS.

Nick thanks for the heads up will try DR Drift also

I see there is possibly beta support for the Nissan CAS coming in the MegaSquirt 3? That would allow you to do spark only and things like control radiator fans etc.

This would give you the ability to also use it for fuel in the future should you wish?

Megajolt Lite Jr requires no CAS. Just one sensor from an Aussie Ford. And can control accessories. You can use Holden DIS coils.

You could probably strip back a CA18de loom, so it just ran the CAS wiring, and ignitor/coil packs.
I have a mate with a nistune tool. If you knew what curve you wanted, it wouldn't be too hard at all for a nistuner to write you a spark map. Downside would be you'd have to use the whole ECU to run it. Plus you'd still be stuck with an ignitor. The plus side would be you could keep the knock sensor, which would give you some detonation protection. Plus you can advance or retard your entire "map" simply by rotating the cas.

DD wow no cam cas but needs 36 tooth unit on the crank pulley?

Bart, I like the sound of using the whole ecu, its cheap at
wreckers and knock sensor unit is a bonus. rotating the cas
to adavance and retard sounds awesome, not to mention cam
adjustable pulleys are now 70usd a set.
Now to find a nistuner that does this kind of application.

D, like I said get onto dr drift. He apparently really knows his ca's and is in melbourne

You could do a quad setup so that the injectors were underneath the throttles, and its not hard to hide wiring

Thanks for that will try them hopefully they can help.
I always would run inj under the mani if I went efi but
if not carbs Id rather quad throttle bodies close to
the inlets, some nice tapered runners to a plenum and
a polished impco 300 or bigger at the end of it :)

I love quad bike carbs, the look and sound they make.
I re-measured my quads and they are 41mm unchoked
so equivalent to 45 webers in some respects.