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Engines.

Posted: Fri Feb 10, 2017 3:50 pm
by XiT
Hey team. Looking into getting a cappo to go with my mighty boy. Can't find anywhere on TMR the equation for figuring out Max engine sizes for both na and boosted. Any help is much appreciated thanks.

Re: Engines.

Posted: Fri Feb 10, 2017 9:25 pm
by Brayden
http://www.tmr.qld.gov.au/-/media/Safet ... .pdf?la=en

Vehicle weight x 3.0 for N/A and 2.5 for turbo. The new NCOP is pretty generous.

Re: Engines.

Posted: Sat Feb 11, 2017 2:23 pm
by XiT
Ah thank you. Went around in circles for an hour trying to find that :P so that should be about 1.8L turbo and 2.2 n/a ?

Re: Engines.

Posted: Sat Feb 11, 2017 3:26 pm
by Brayden
It goes on curb weight, not gross mass
An MB is 530kg, which means 1325cc turbo and 1590cc N/A.

Re: Engines.

Posted: Sat Feb 11, 2017 3:29 pm
by XiT
Ah yea. Sorry I meant a cappo at 725kg. Should be about 1.8 and 2.2 ish?

Re: Engines.

Posted: Sat Feb 11, 2017 3:55 pm
by Brayden
Shit, sorry I wasn't paying attention! Yeah you're right.

Re: Engines.

Posted: Sat Feb 11, 2017 4:21 pm
by XiT
Haha all good. Just double checking my maths :) it's usually pretty bad

Re: Engines.

Posted: Thu Apr 20, 2017 7:49 pm
by Zuffen
Double check there isn't a 800kg limit on engine capacity.

I know in NSW a vehicle under 800kg can't use the full allowance.

Re: Engines.

Posted: Sat Apr 22, 2017 12:22 pm
by Brayden
Zuffen wrote:Double check there isn't a 800kg limit on engine capacity.

I know in NSW a vehicle under 800kg can't use the full allowance.
The info above (3x N/A and 2.5x forced induction) is for cars under 800kg.
The other categories in the NCOP are 800-1100kg and 1100kg+

Re: Engines.

Posted: Mon Sep 18, 2017 2:01 pm
by XiT
Apologies for a bit of a dead topic revival.

Do you think they would allow a minor uppage on cc allow a 12a rotary ? na of course.  I know it won't get turbo approval. Or would that be engineer specific ?

Thanks.

Re: Engines.

Posted: Mon Sep 18, 2017 8:02 pm
by Zuffen
I did a rotary swap into an MGB many years ago and the problem with Rotors is the eccentric shaft is in the middle of the engine rather than down low like most crankshafts.

This means the bottom of the engine sits much lower than a normal engine.

To overcome this I had to raise the transmission so the engine's sump wouldn't drag on the ground.

I would imagine in a front wheel drive car with short driveshafts this would be a nightmare to overcome.

Re: Engines.

Posted: Mon Sep 18, 2017 8:10 pm
by XiT
Cappuccino is RWD

Re: Engines.

Posted: Tue Sep 19, 2017 8:01 am
by Zuffen
In that case you would still end up with the transmission up under your armpit.

Re: Engines.

Posted: Tue Sep 19, 2017 2:31 pm
by Brayden
XiT wrote:Do you think they would allow a minor uppage on cc allow a 12a rotary?
Rules are rules, unless you find an engineer willing to fudge the paperwork.