People are always saying stuff about "only up to 1.8L is legal in a 1200." But i also heard of people putting VG30s into a 1200.
Whats the deal?

good question im 99.9% sure u can put L20B's in ??? can any 1 confirm this?... but then again if u have a good mate that can issue u blue, green and pink slips u shuldnt have any problems..... can any 1 confirm that u can put L20' in? there 2 litre?

i think u r right, i should have mentioned that i was referring to the conditions in my state (SA) where only up to 1.8L is allowed.

You need to refer to the registration aurthorities of your State. Its been discussed numerous times, so it shouldnt be to hard to find using the search button.
In NSW there is a size limit for turbo engines and there is a size limit for naturally aspirated engines. You can exceed these size limits but your car will be classed differently for registration, there are Australian Design Rules for each class of registration.

This is true, however, try finding the rules for vehicle modification in south australia. im not sure how hard im supposed to search or what exactly im looking for. Anyone is welcome to try. Transport SA is the MTA here.

Here is a link to the department of transport ,south australia. It tells you what modifications to your vehicle your are not allowed to do untill you have sort approval from Transport SA Vehicle Standards. It gives you a contact number to Transport SA Vehicle Standards for more information concerning vehicle modifications.
They should be able to let you know exactly what you need to know.
From my understanding you have to submit an application to them, stating what modifications you wish to perform and they will review it and if its accepted they will approve it and then you can go about your engine conversion adhereing to all the approved aspects of your application.

Department of Transport SA

Man, you just need to move to the US (not California), you can legally run ANY size engine in a 1200 that you want, as long as it passes the emissions test which can get exempted in most States because it's too old! The only rules they "kinda" have is the engine swap is supposed to be from a newer car, or it can be from an older car as long as it's the exact same kind of engine. Nobody ever checks this anyway!

The best thing I like is if you're in the military you can live out of state and still be registered there, therefore exempting you from all emissions testing! Another way legally around emissions tests are to live or be registered in a county that has no testing facilities. I've got both bases covered for me, I'm registered in a city that has no testing facility, plus in the military so as far as I'm concerned I will never have to "smog" a car again! But I wonder how much cleaner an SR20 runs than a dual carb'd and cammed up A15...probably a big difference!

-Andy

In NSW this is how you work out maximum CC's in an engine conversion of any car.

FOR A TURBO FORCED INDUCTION ENGINE you simply times the weight of the car in kilos by 2.5

And FOR A N/A ENGINE you simply times the weight of the car in kilos by 3


Example,
datsun 1200 4 door sedan B110SAU weighs
730 kg

730 x 2.5 = 1825cc for turbo

730 x 3.0 = 2190cc for N/A

its that easy..


The acception.... If you can build an individualy constructed vehicle (hot rod) if you follow engineers instructions you can basically put anything in anything But the weight rule still applies however.

Street Machine fans would know about FINAL OBJECTIVE that is the proof you can do anything to anything if you do it right!!!!!!!

Individually Constructed means just that. Weight of body rules have no involvement in the size of the engine in this class of registration, you do however have to meet every ADR ( Australian Design Rule ) of the year that the vehicle will first be registered with this engine setup. An engineers approval still has to be sort and every aspect of the modifications has to be approved, all the way down to the grade of bolts used for each application.
Not many people build cars in the Idividually Constructed category as the cost involved to meet the ADRs would be extremely high for an older vehicle like a Datsun which originally had to meet a very little number of ADRs if any at the time of its maufacture. Basically for the Registration class of Idividually Constructed the cheapest ( but still expensive) way to put the biggest engine you want in a car, would be to buy a 2004 model car which has already met the years ADR's and then consult an engineer about how to go about the conversion so as to meet the engineers approval without downgrading any applicable ADR that the vehicle has to meet.

There is no size limit to engine size for Individually Constructed as long as every aspect meets an egineers approval

Hotrods have a different class of registration with different criterior to meet ( less restrictive if rules are met) But they can still be registered in any rego class aslong as they meet that rego cleasses guidelines.

As for the Final Objective, a bit of investigation will reveal that the car has numerous ADRs that were never met, 3 of them being : rear wheel size is beyond legal limit, exhaust exiting side of vehicle without being beyond the specified distance form the rear most opening window, and #3 no colision airbag safety device installed into vehicle. Thats only 3 ADR's that were not met, the actual number are too numerous to write down.
The only thing the Final Objective proved is that the engine could be fitted in a vehicle and opperated and supposedly the vehicle could still meet registration requirements.
But if meeting registration requirements means the vehicle can only be driven by Rod Hatfield and only Rod Hatfield to and from the workshop and at carshows and also upon sale of the vehicle its registration will be cancelled, if that meets registration requirements then yeah the Finall Objective proves any engine conversion can be done

Interesting

Good post phunk

Just wonderin my car was engineered in 1994 with SR20DE and dosent have a cat pipe should it ?