NA6 Engine Build

Engines, Transmissions & Final Drive questions and answers

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adamjp
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NA6 Engine Build

Postby adamjp » Sun Mar 15, 2009 7:08 pm

Well, I've finally pulled my finger out and today I put the engine together.

Specs:
NA6 Long Nose crank - polished & balanced
Supertech 79mm (40thou OS) 11:1 pistons on lightweight rods - balanced
Supertech 1mm OS valves throughout with slightly up spec single row springs
Block Decked
Head re-surfaced
ACL Race series bearings
Ported head
HKS 264 cams

And now for some piccies..... :D
Adam
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adamjp
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NA6 Engine Build

Postby adamjp » Sun Mar 15, 2009 7:09 pm

Piston photos....
Image
Image
Image
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NA6 Engine Build

Postby adamjp » Sun Mar 15, 2009 7:11 pm

The block.....
Image
Image
Image
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adamjp
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NA6 Engine Build

Postby adamjp » Sun Mar 15, 2009 7:11 pm

The head.....
Image
Image
Image
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NA6 Engine Build

Postby adamjp » Sun Mar 15, 2009 7:11 pm

The ports.....
Inlet
Image
Exhaust
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adamjp
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NA6 Engine Build

Postby adamjp » Sun Mar 15, 2009 7:12 pm

Where I was when dinner was called......
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NA6 Engine Build

Postby adamjp » Sun Mar 15, 2009 7:14 pm

If anybody wants to buy a NA6 sump pre-fitted with an oil return - I've got 2 and can deliver to Sydney next weekend.

I'll swap one for a stock NA6 sump.
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bruce
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NA6 Engine Build

Postby bruce » Mon Mar 16, 2009 1:42 pm

All too pretty to hide inside the engine!
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NA6 Engine Build

Postby daffyflyer » Mon Mar 16, 2009 3:21 pm

Very Nice motor, Im pretty much building a 1.8L version of the same motor.

Mind if i ask what the cost breakdown on it was? :D
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NA6 Engine Build

Postby adamjp » Mon Mar 16, 2009 6:13 pm

As long as you don't tell the wife..... :o

I'll look it up and get back to you specifically. But so far an indicative price is over $3k - and that was with the $ at $0.85c USD.
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NA6 Engine Build

Postby RG.net » Mon Mar 16, 2009 11:46 pm

everyones building engines these days, looks good, whats the expected power output?
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adamjp
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NA6 Engine Build

Postby adamjp » Tue Mar 17, 2009 8:22 am

This is my second engine build....the first was simply to make the engine I bought with the car stop spewing oil out the exhaust pipe. 10:1 compression pistons, ported head and new rings/bearings/seals made it better.

This one has been on the stand for 3 years now, I bought the engine back in 2006, with parts being bought as they (or cash) becomes available. After 4 years I finished my Management Degree last year so now I have more time to spend doing stuff I like. :D

As for power? I expect more than stock.....perhaps as much as 100kw. The engine closely replicates the build standard of a better 4AGE, so I might squeeze it up to 105kw when I fit and tune the eManage Blue.

Once the manifold for the Quads is finished, then I might get another KW or three.

Turbo = more power for less $$$$, but I like revvy engines. My wife's car is a Mazda 6 MPS. My previous car was a HSV. I am not looking for bulk power in this car.
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NA6 Engine Build

Postby RG.net » Tue Mar 17, 2009 12:57 pm

adamjp wrote:As for power? I expect more than stock.....perhaps as much as 100kw. The engine closely replicates the build standard of a better 4AGE, so I might squeeze it up to 105kw when I fit and tune the eManage Blue.

Once the manifold for the Quads is finished, then I might get another KW or three.


Turbo is cheaper, but there is something about a quad throttle mx that makes me choose it over the boring turbo setup.

are you planning to run the quads on the EMB? your going to have alot of trouble getting the tunining "decent", your best of going for a standalone straight off the bat. Considering you have an NA, why not go for the megasquirt?
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NA6 Engine Build

Postby Boags » Tue Mar 17, 2009 5:06 pm

MXHEVN wrote:boring turbo setup.


Poor choice of words... Nothing boring about a Turbo MX5 (when you are in the driver's seat)... :twisted:
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NA6 Engine Build

Postby Fatty » Tue Mar 17, 2009 6:40 pm

yeah. common, maybe, but never boring . :roll:

i have had the pleasure of driving a fully worked na8 with quads, it was an amazing experience. if i had the money i would definately consider it. altho once my turbo set up is fully complete, i'll have vastly more power and still have many thousands of dollars in my pocket.

i guess this is off topic and i apologise for derailing the thread, but when i see a turbo mx5 described as "boring" i guess i get a little annoyed.

ok i'll shut up now
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