Legalities with engine conversions?

[lumpy]

The NA 7M idea has long since been abandoned unfortunately but thanks for the response After 5MTE (hopefully it will last 6 months atleast) the options are 7MGTE if I want turbo or 2JZGE or 1UZFE.

7MGTE makes things easier, 2JZGE probably make decent power and can be turbo'd later, 1UZ would just sound freakin awesome

Why not a 1j? Cheaper, done many times before and still got plenty of zoom zoom.

[RObErT_RaTh]

Why not a 1j? Cheaper, done many times before and still got plenty of zoom zoom.

I've made two personal rules a) not to go lower in displacement and b) not to get twin turbo

[Norbie]

Yeah, that extra 300cc is going to make all the difference.

[h3ff44]

often wondered about all this.. ive been thinkn about project cars and what would be the best to play around with.. ive looking at a cressida mx73. if i was to put a 7mgte in it would it need to be engineered? also if i felt like being silly and making the 7m into a 6mgte would i still need an engineers cert?
or is it the same concept of doing the rb30 block rb26 head?
wondering how it all works.. what about converting the mx73 to manual?

[timgte]

When i converted my 4age to a 4agze i was faced with the same questions.
Basicly you need to get it engineered if your model car did not come out with that particular engine In Australia as standard. Even though my replacement engine was a 4a series engine the same as the original, the 4agze was not offered as a factory fitted engine in Australia.
I had no issues getting it engineered though, simple trip to the RTA for an emmisions test, then an engeneer came and inspected it and wrote me up a certificate.

[RObErT_RaTh]

When i converted my 4age to a 4agze i was faced with the same questions.
Basicly you need to get it engineered if your model car did not come out with that particular engine In Australia as standard. Even though my replacement engine was a 4a series engine the same as the original, the 4agze was not offered as a factory fitted engine in Australia.
I had no issues getting it engineered though, simple trip to the RTA for an emmisions test, then an engeneer came and inspected it and wrote me up a certificate.

What was the cost like?

[o_man_ra23]

I know that QLD has the 20% rule. Did a mates car from 21RC to 22RE (20% increase in capacity, not much more power, huge percentage more torque) and converted from auto to manual, no certificate required, all went fine with Qld Transport. As stated, check with your local engineer, a quick phonecall and they should know. Try and find an engineer who does a bit of work with toyotas.

Cheers, Owen

[Adash=P]

I was wondering what the cost would be of getting a Corona with a 1GGTE engineered. This is the answer I got from TSA approved engineer.

The new engine is over 10% more powerful,61%, Thus TSA will need:
chassis inspection report and due age of the chassis possibly a torsion and beam stiffness test $750.
Brakes have been upgraded and front rotors must be at least the size of Supra. TSA will want a brake fade test done $375 plus due weight changes a lane change handling test $375. Both must be done at AIR race track who charge $150 per car.
Also need noise test and idle emissions test that we do for $75v each.
Also a chassis dyno run to show actual power level at rear wheels.
I can then calculate a theoretical top speed to determine the tyre speed rating needed.
Putting together the final report typically $350.

Ist step is to apply to TSA to modify. They will advise a statement of requirements confirming all the tests they see are required ( may only ask for an opinion on chassis).

[o_man_ra23]

I was wondering what the cost would be of getting a Corona with a 1GGTE engineered. This is the answer I got from TSA approved engineer.

The new engine is over 10% more powerful,61%, Thus TSA will need:
chassis inspection report and due age of the chassis possibly a torsion and beam stiffness test $750.
Brakes have been upgraded and front rotors must be at least the size of Supra. TSA will want a brake fade test done $375 plus due weight changes a lane change handling test $375. Both must be done at AIR race track who charge $150 per car.
Also need noise test and idle emissions test that we do for $75v each.
Also a chassis dyno run to show actual power level at rear wheels.
I can then calculate a theoretical top speed to determine the tyre speed rating needed.
Putting together the final report typically $350.

Ist step is to apply to TSA to modify. They will advise a statement of requirements confirming all the tests they see are required ( may only ask for an opinion on chassis).

Can I offer some advice D-Master... go to a different engineer who has enough experience to be able to judge most of those mods himself. A lot cheaper.

Also, I dont see what the fuss is about with the weight increase, as it will be minimal going to a 1G as they are a fairly light engine anyways.

Plus... the supra brakes are rated for a heavier vehicle. Brake ability is determined by both the speed travelling and the vehicle weight. So I have my doubts as to whether you will need supra brakes on there. Plus, the GA40 brakes were pretty crap with the GA61 not being much better, so just about any upgrade you do should piss it in.

Cheers, Owen

[Adash=P]

Thanks for the advice. There isn't alot of choice when it comes to engineers here in SA as they have to be approved.

GA70 brakes may seem rubbish but the Supra is a heavy car. I'm using R33 brakes anyway.

All this doesn't really matter to me as the car is track only but I posted this info up for others just as an example.

[RObErT_RaTh]

Sounds pretty darn expensive to me

[Adash=P]

Yep! Thats why I'm not doing it and I'd rather pour some cash into something else.

[Draven]

I feel so sorry for you SA boys and the cost of engineering

["Z" UTE]

I've made two personal rules a) not to go lower in displacement and b) not to get twin turbo

1JZ-GTE VVTi =Single turbo. Easy 200rwKw. Just with a decent cold air intake, aftermarket I/C, and a crappy press bent 2.5" exhaust, my VVTi made 189Kw.
New owner, added a 3"exhaust, and split dump, power went to 213rwKw.

cheers Chuck.

[Enchanter]

I've made two personal rules a) not to go lower in displacement and b) not to get twin turbo

Go the Holden 202 !!!