7agte into a ae93 seca sx- is it legal in regards to emissions and engineering

[Ta22 Crazy]

hey guys i have an ae93 sx seca that i want to turbo and increase the displacement but my worry is, will it pass emissions and engineering bearing in mind ill be throwing a set of 272 degree cams in aswell
thanks in advance

[PrettyCoolWagon]

Yes and No.

Yes
it's legal if you can build it in such a way that it will pass emissions testing and suspension & brake testing. Both tests are done at considerable cost to the vehicle owner.
There's a guy in Sydney doing this with an AE95 at the moment. His power to weight ratio wouldn't be as good as yours due to the ae95 wagon being heavier than a seca, so you might find an engineer will restrict things like exhaust and turbo size in an effort to keep your power levels at an acceptable limit.
The person I'm speaking about doesn't have a build thread but he's done the right thing by getting in contact with an engineer first and the information I've provided is pretty much what the engineer told him.

No it probably won't pass engineering.
With a change in CC capacity, tired 20+ yr old seca exhaust and near disintegrated cat, plus 272 cams and god only knows what turbo... you will be operating outside of Australian Design Rules which advise something along the lines of: you're only allowed to replace the factory engine with one of the same make/ family (A-series) and capacity.
IE 4AGE 20V blacktop.
Furthermore, once you install an engine that is 20% or more powerful, above that of the most powerful factory engine available (20v BT) then the cars suspension and braking has to be tested in a variety of conditions, must come with engineers certificate and be able to pass emissions testing. Which means new cat converter and really good emissions tuning.

If you're still keen after reading all that then look up engineers in your area.

[Ken_T]

My understanding is, as long as it meets the emissions for the engine year, it doesn't matter what car it's in. In your case, the ae101 engine(?) would need to comply with ADR37/00, which is a lot more lenient than 37/01.

Then again, I haven't been keeping up with the laws so it may have changed.

NSW seems to require you to meet their standards, available here

[Ta22 Crazy]

my plan was 7afe block with smallport head bored to 1.9L but no one knows that its 1.9L, t25g turbo
as for brakes and suspension already thinking about wilwood 4 pot fronts and ae102r rear brakes and tonnes of suspension mods

guess i will call up engineers if not do a 1.9L n/a and get the block bluesliped