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View Full Version : More cubes + engineering cert .... legal big engines



GM Slave
30-07-2012, 07:58 PM
Howdy, I've been searching and searching, can't find the answer to this one.

I'm about to put a larger engine in a VTII. I realise this is a total rego problem, so what did you do to overcome it?

With so many people talking about putting a LS2 / LS3 where a LS1 once was I reckon some would have an experience to share.

I'm not interested in increasing engine size illegally. Or driving around with no engineering cert.

What did the engineer focus on when he looked at your engine replacement? Did they mandate bigger brakes? Steering and suspension upgrades?

Or was noise / emissions the big issue?

Anyone try a more cubes and a blower - how hard was that to get legal?

I'm in ACT if that is a consideration.

2010blackve
30-07-2012, 08:39 PM
I would like to hear what people in the know have to say about this. I have just gone more cubes and FI.

I have been told no chance of getting it engineered.

Oh I'm in WA.

bluedivide
30-07-2012, 10:24 PM
For what its worth I've got a VZ Senator with an LS2 (factory) and its heavily modified (brakes, suspension, drivetrain, engine) and I haven't had any problems either with rego or insurance. I am planning on dropping in a 6.8ltr COME motor later this year so there may be some issues there but nothing insurmountable.

Some of the guys in the HSV Club down here in the ACT also have big motors, FI and fairly radical mods and they don't seem to be an issue, the important part as far as I can see is working with your engineer, workshop or fabricator and ensuring that it all gets done properly which of course costs money...

Xjas
31-07-2012, 12:24 PM
http://www.infrastructure.gov.au/roads/vehicle_regulation/bulletin/vsb_ncop.aspx

VSB 14 is supposed to be the guideline used by engineers, going by that a car with a weight of 1800kgs can only have a maximum NA capacity of 9000cc or a FI capacity of 5400cc.

FrangaFry
31-07-2012, 08:37 PM
:rofl: Geez, just took a look at the above link and associated docs, looks like nearly every member on here would be in breach .................... I know I am .............. DOH!

This and a recent conversation I had with Chev is food for thought ................... I love my PD blower, but you seem to have much more latitude with an N/A donk than an FI donk........

Don't want to hijack your post OP but what ARE peoples thoughts on donk upgrades/replacements and/or FI mods (I might post this somewhere else, sorry dude)

2010blackve
31-07-2012, 09:17 PM
http://www.infrastructure.gov.au/roads/vehicle_regulation/bulletin/vsb_ncop.aspx

VSB 14 is supposed to be the guideline used by engineers, going by that a car with a weight of 1800kgs can only have a maximum NA capacity of 9000cc or a FI capacity of 5400cc.

I think there is plenty of cars getting around with 6.0l/6.2l engines that are FI and have been engineered, so not sure where the 5400cc comes from.

Nutter
31-07-2012, 09:26 PM
Because NCOP is the new national code, it's taken a couple of years but is now in use.

Sent from my HTC One XL using Tapatalk 2

1BEAST2NV
31-07-2012, 09:50 PM
marks work shop does afe here in WA

Tre-Cool
31-07-2012, 11:05 PM
i got my 6.2,cam'd,blown car permitted here in perth in the last couple of weeks.

Nutter
31-07-2012, 11:07 PM
What size was the original motor?

Tre-Cool
31-07-2012, 11:10 PM
6lt. i replaced it with a forged ls3. its still registered as a 6lt because it made no difference for the whole engineering process.

Nutter
01-08-2012, 12:33 AM
In what car in what trim level, just because your engineer didn't bother to check or hoped no one would realize doesn't mean it's technically legal, the new formula is simple if the car is over 1100kg factory and you add forced induction your engine even capacity must be no more than just 3x the cars factory weight in cc so for example 1800kg x 3 = 5400cc or 5.4 litre or on a naturally aspirated car over 1100kg up to 5x the weight so again for example 1800kg = 9000cc or 9 litres, NCOP is unfortunately here to stay and if it hasn't been followed there's nothing stopping the issues that can occur, the NCOP document for the most part is easy to understand i would say for most people they just cbf reading it. Also engineering only covers half the legal battle there are also revised rules for epa noise and emissions which is separate to engineer cerification, I've added the links elsewhere on here recently. Like has been said and done time and time before you can and will be put of the road even with an engineers cert if the officer considers the mods dangerous or illegal.

GM Slave
01-08-2012, 11:10 AM
Thanks all. I now have an appointment with the motor engineer on Monday so fingers crossed.

Xjas
01-08-2012, 11:56 AM
Also engineering only covers half the legal battle there are also revised rules for epa noise and emissions which is separate to engineer cerification

I cant speak for the other states but I am currently going through engineering certification in NSW for my VE and the emission and noise tests are part of the engineers certificate, I passed the noise test this morning, I have to go to Sydney for the emission test as no one does it locally, what a PITA.