Your carburetor would take the place of the throttle body because it has a throttle body already built into it. You just install it just as it is before the super charger where it will behave under normal circumstances because it is before the supercharger thus not experience any increase in air pressure. If the carburetor was 'being fed' by the supercharger, thus located mechanically after the supercharger it would be experiencing conditions dissimilar to it's normal use, if would be under pressure. You can work around this but the easiest format would be, carb to supercharger inlet and supercharger outlet to stock factory manifold.

I am just wondering how would I go about fitting my webber carby before the SC does that mean that I would have to figure out a way to plumn it into the intake of the SC?

Yes. In the carby & supercharger combination your (air) throttle valve/fuel delivery is in one location (the carburetor) in the other format with the inlet manifold the (air) throttle valve is located at the beginning of the system and the fuel delivery is located at the end of the system just before going into the engine (the injectors set into the inlet manifold). Your best bet right now would be to take a look at some previous setups. Here are some useful pictures and a really good link with some great visuals.

EDIT: Here is the wiki link: www.datsun1200.com/modules/med ... hp?title=Forced_Induction

jarrysNIZ12




A14force




aidaniel





If you are pursueing a power upgrade and have limited knowledge you have almost jumped into the deep end, but not quite all the way there.

The carby and supercharger setup would yield more power and aleviate you having to deal with any complicated electronics. With a bit of fine tuning and a few test runs a carby setup would be quite reliable and fun. Electronic Fuel Injection, although brining a great improvement in driveability will not match the power gains of the carby/supercharger combination.

yep - essentially just fabricate a couple of plates and a pipe joining them together. One plate would have the bolt pattern/hole to match the supercharger intake, and the other plate would suit the bolt pattern of the carburettor. The pipe would join the two, and might have a 90 degree bend (albeit as softly curved as possible) or two so that it could position the carb upright (or sideways, in the case of any sidedraught carb). You might also add a few bits and pieces to the plates to help with locating a throttle cable, and return spring and such.

Ok thanks for that one question if I have the carby before the SC that means I would be sending a mix of fuel & air through the SC would that be ok?

Yes, it's okay. You can install a purge valve as a safety.

If you look at some of the setups on the forum they are almost all carby types and they are mostly draw through, carrying the airfuel mixture through the supercharger.

Ok thanks for that, So if I was to run the intake / throttle body that I have. Would I run that before the cooler with a throttle cable hooked upto it?

Yeah I guess so. But if you run that with the carburetor option that means you will have to remove the throttle valves from the carburettor..... or somehow synchronise the two with two separate cables which would be a nightmare......

An intercooler should only go before the fuel dispersion/injection. All of those carburetor setups are not intercooled. Perhaps water or water matehanol injection might be a safer, easier, simpler choice of cooling the induction charge.

Forget the intercooler, forget the complicated electronics and keep it simple. Hook up the carby to the inlet and arrange to fit the outlet of the SC to the stock manifold. Get a set of extractors, a decent electronic distributor and a cam and you'll be peeling rubber.

Going by the questions you are asking I would seriously advise that you get someone with a bit more know-how to help you out. Forum advice is exceptionally valuable but moreso if you understand the fundamentals and basics of what you are doing.

For what it's worth, I would help you out if I was a bit closer. I was on the Gold Coast a few months ago...

You can run an SC blow through a carb or throttle body, you just need a blow off valve working off the pressure difference either side of the throttle valve/ carby. An electronic clutch or blow off valve would make it pretty simple to only have boost at full throttle. It'll be pretty touchy but maybe that's just more fun! The very first racing car supercharger was only on at full throttle.

Yes that does sound like a much simpler way of doing it, I like the sounds of that set up.
I already have the extractors, cam, exhaust, and webber carb.

I will be doing alot more research over the next few months, I just wanted to make sure that I knew that it would be within my reach to set one up before I commited to buying the SC.
I plan on building a A14-15 and charging that engine, that way I can beef up the internals to handle the extra power.
The SC I have now is going to need a rebuild anyway, I am thinking of getting a good local shop to install the SC because I will need someone to do the plumbing and fabrication anyway.
I think I have all the info I need now to proceed to thanks alot everyone for your input!