Question of building up my engine.

Postby **NitroDann** » Sat Nov 02, 2013 9:18 pm

A turbo kit can be built up on over time starting with a very basic kit for around the 2500 mark including pro tune, this will instantly make as much power as any N/A build you will realistically build for a street car, then you add intercooler, then you add exhaust, then you add injectors, etc etc, much like an n/a build, however the initial buy in price is around the 2500 mark from me. But this will make more power than most street N/A builds and only cost 2500 initially, after another 2-3000 you will make 250whp.

Dann

sailaholic · Postby **sailaholic** » Sun Nov 03, 2013 12:49 am

I'm not so sure itbs would be more responsive down low then a turbo. To be honest I find my partners 1.3 Liter yaris more responsive down low then the mx. I just find there is too much torque loss that you need to be around 3.5K, which a good turbo setup would spool pretty fast at I would have thought.

But then maybe I just went top far with the head on a stock bottom end or it just is a poor setup, everyone else seems to make shedloads more ponies.

Might have to do some comparisons once your engine is done mark.

Sent from my iPhone using Tapatalk

tescoking · Postby **tescoking** » Sun Nov 03, 2013 6:01 am

well...since so many people are pointing me in the direction of turbo, and you guys have explained so much, I guess I have to change my mind and go for the turbo build, maybe turbo with ITB if possible. Thanks everyone for you valuable time and knowledge. Goodbye N/A

Magpie · Postby **Magpie** » Sun Nov 03, 2013 6:31 am

sailaholic wrote:Might have to do some comparisons once your engine is done mark.Tapatalk

Happy to compare and if needed let you drive my car to find out for yourself

tescoking wrote:Goodbye N/A

Don't throw away the N/A idea just yet, just do some more investigation. There would be people on here who would enjoy seeing another N/A itb build, then again there are others who want to see another Charlie build. Notwithstanding it is your car so follow what you to do, I did and I'm very happy with the way I went.

However, a turbo ITB MX5 may keep both sides happy

tescoking · Postby **tescoking** » Sun Nov 03, 2013 6:45 am

Magpie wrote:
sailaholic wrote:Might have to do some comparisons once your engine is done mark.Tapatalk

Happy to compare and if needed let you drive my car to find out for yourself

tescoking wrote:Goodbye N/A

Don't throw away the N/A idea just yet, just do some more investigation. There would be people on here who would enjoy seeing another N/A itb build, then again there are others who want to see another Charlie build. Notwithstanding it is your car so follow what you to do, I did and I'm very happy with the way I went.

However, a turbo ITB MX5 may keep both sides happy

Maybe I will try turbo ITB, so I can have two advantages

davekmoore · Postby **davekmoore** » Sun Nov 03, 2013 11:12 am

Magpie wrote:
NitroDann wrote:You will be disappointed by how expensive and slow a street ITB build will be, like, balls slow compared to a few grand turbo setup, which will be much nicer to drive.

Whilst Dann could be considered biased towards turbo ...

I reckon Dann is biased - not towards turbo but towards the most cost-effective and reliable power. Which happens, if done correctly, to be turbo.

Mr Morlock · Postby **Mr Morlock** » Sun Nov 03, 2013 4:16 pm

Are turbo's actually legal in all States- if so what does it cost to have it engineered. Anyone know what are the ramifications with an insurer given that some well known insurers will even refuse a sports muffler.

sailaholic · Postby **sailaholic** » Sun Nov 03, 2013 5:15 pm

Shannon's don't care as long as its legal. They only really care if its under or over 5k as it changes the multiplication factor on the insurance (applies to all engine work not just Turbo) . You can get turbos mod plated in qld.

Sent from my GT-I9100 using Tapatalk

Postby **NitroDann** » Sun Nov 03, 2013 5:15 pm

Are ecus, cams exhausts intakes ITBs even legal?

Answer: Who cares?

Dann

Magpie · Postby **Magpie** » Sun Nov 03, 2013 5:37 pm

ECU's are only legal if they are locked and meet the relevant emission law. Anything that changes the emissions of the car from stock is illegal, simple.

Postby **NitroDann** » Sun Nov 03, 2013 5:42 pm

In victoria

Magpie · Postby **Magpie** » Sun Nov 03, 2013 6:01 pm

Actually Queensland as well.

tescoking · Postby **tescoking** » Sun Nov 03, 2013 8:02 pm

Lets move to Tasmania

Sent from my iPhone using Tapatalk

KevGoat · Postby **KevGoat** » Sun Nov 03, 2013 8:26 pm

Do mods affect 3rd party property?

Sent from my GT-I9100T using Tapatalk

emily_mx5 · Postby **emily_mx5** » Sun Nov 03, 2013 9:08 pm

tescoking wrote:-Autocross, what class? I don't understand what this is, please explain.
-Wheel to wheel racing or HPDE only, what class? I don't understand what this is, please explain.
-Must it be able to run on pump gas and if so, what octane? Fuel
-Must it run in a street car, (A/C, OEM alternator, col start driveability etc) ? Yes
-Do you have a shop in mind that is familiar with race BP series builds? Not really, just a shop that do many custom cars/show cars
205whp+ is pretty much a full race engine with cams that would probably never idle for street use. If I could build it then why not?
225whp+ so and the life expectancy begins to shorten. Perhaps 15-30 race hrs and you're looking at a $15-20K long block. I would love to live longer

You clearly have a great understanding of how it all works, I suggest you also pose these questions on miataturbo.net.