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Matt_PGT

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PostSubject: NA tuning info    Tue Nov 13, 2012 9:58 pm

Hi guys and girls will you please pass on your NA tuning info and ideas for NA engines to me please

Thanks matt
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shrek
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PostSubject: Re: NA tuning info    Wed Nov 14, 2012 9:39 pm

have a spy on the tech threads mate, i'll do a little right up when i get chance
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Deano-ST

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PostSubject: Re: NA tuning info    Thu Nov 15, 2012 1:12 am

High compression high revs, good flow characteristics from the head/ports/valves and manifolds are all the fundamentals of a good N/A engine.
lightweight and balanced engine components also really help by reducing rotational mass and allowing the engine to run much higher revs due to the crank, pistons,rods,flywheel all being balanced together.

camshafts are then used to shift the power band into the higher rev range

Individual throttle bodies give each cylinder its own throttle body to try and ensure each cylinder is getting maximum possible air and all cylinders get equal airflow for maximum power and efficiency with a less turbulent inlet route

that's the key to N/A engines, ensuring that the maximum amount of COLD air and fuel get into the cylinders as efficiently as possible, meaning things need to be as smooth as is practically possible, and once in the cylinder, the spent gasses need to get out as smoothly and quickly as possible for the cycle to start over again,
(since there's no charger to force air, an N/A engine needs to be able to breathe really well)
If the Air/fuel mixture or spent gasses cannot get in/out fast enough it creates a huge restriction, there's no point having an engine capable of revving to over 8500RPM if it cant flow enough gasses @ 7000RPM and is strangling itself because it cant breathe well enough.

exhaust manifolds need to be well designed to ensure that there is maximum flow, but also sustained mid range torque ( the let down of most N/A engines).
A well designed manifold will be of equal length and of a 4-2-1 or 4-2 design, each having its own pros and cons.

or something along those lines I think lol

I cant be assed to write any more ATM so will pick up and carry on later about valves,induction kits, uprating parts to take extra stresses from increased revs ect if no one else puts better posts up ( more than likely they will lol lol)
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Deano-ST

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PostSubject: Re: NA tuning info    Thu Nov 15, 2012 1:26 am

And should this not be in technical and performance?

Embarassed
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Deano-ST

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PostSubject: Re: NA tuning info    Thu Nov 15, 2012 12:43 pm

it all depends how far you want to go.....
what will the engine be used for? ( s fully buolt NA screamer will be awfull to drive on the road as a daily but epic on track)

what sort of power you looking to get matt?
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Deano-ST

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PostSubject: Re: NA tuning info    Thu Nov 15, 2012 1:17 pm

Right....ive done some digging and rhe d17 isnt the best catered for engine when it comes to NA tuning.
most people simply swap a k20 or k24 engine in.
however......

the d series does respond well to turbo charging even on standard engines....downside is its not what you would call cheap lol but you could easily see 160 Whp

the other option is something called a mightyD
basicall a d16a6 engine and the better flowing head with the block machined to take the D17s internals....think of it as a D16a6 with a honda approved stroker kit....but that involves some pretty hefty machining to the block, also you need to use pistons out of a duelfuel civic and there not exacly common
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Deano-ST

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PostSubject: Re: NA tuning info    Thu Nov 15, 2012 1:19 pm

i shall keep looking cus im bored at work lol
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Deano-ST

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PostSubject: Re: NA tuning info    Thu Nov 15, 2012 1:35 pm

is yours the D17A2?
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Deano-ST

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PostSubject: Re: NA tuning info    Thu Nov 15, 2012 1:46 pm

same things keep coming up over and over....
stage 2 cam, exhaust, induction kit and something called a Kpro....im guyesding thats an ecu....throw all that in and save up for a k engine swap or yurbo the D
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Deano-ST

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PostSubject: Re: NA tuning info    Thu Nov 15, 2012 1:51 pm

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