NA Tuning questions please >

[speedfan]

Hi all,
for the engine mods to a naturally aspirated engine:
What are other things could be possibly done to the car besides:
- Intakes/Exhaust system (headers, catless, catback exhaust)/ECU
- power pulleys
- lighter cam/pistons
& Reducing strung & unstrung weight (not sure if this fit in the engine mods, but it certainly helps the power-to-weight ratio)

Thank you for any input.
S.F.

[snook....]

[Duke Nukem]

Duke

[DoubleD!]

cam profile and timing, compression, ring type and location, valve size, head, crank weight and profile, fuel pressure increase/regulation

[///My5UV]

02 LeMansBlue/Silverstone M5
98 EstorilBlue/Grey M3
Blue Spec Racer Ford
"Be good for goodness sake"

[@ badhabits]

_ _ _ _ _ _ _


- - - - - - -

"Patriotism is not short, frenzied outbursts of emotion, but the tranquil and steady dedication of a lifetime."

Adlai E. Stevenson

[M3ed]

[Grimlok]

I think the term is Sprung and unsprung weight, but I might be wrong.

The general idea when tuning NA is getting the air into the engine with as little restriction as possible, and out as exhaust with as much advantage as possible (exhaust inertia can add power and cool the intake charge with proper valve overlap). Higher compression with greater knock resistance fuel will add power density as well.

[goatboy]

I was about to say "a fster car." Modding cars is very expensive, and often disasterous. My co-worker was always brangging about his turbo-charge MR2 after he found out I had the M3, saying he'll give me a ride in it... as soon as he finds another motor for it. The first one suffered "spontanioius disassembly."

[phat95m3]

[ZeattleDave2002]

Lightweight clutch;
Schrick cams;
RE or UUC pulley system;
Headers and free flowing exhaust;
3.5 inch throttle body;
Chip of some flavour (Dinan, Shark);

Then you can start on the mill work.




Boston Green M Roadster

[speedfan]

[speedfan]

[///My5UV]

But seriously, every day at the track is worth half a second.

02 LeMansBlue/Silverstone M5
98 EstorilBlue/Grey M3
Blue Spec Racer Ford
"Be good for goodness sake"

[MarkG]

Lightweight flywheel is a good one, too.



2008 BMW X5 4.8i Space gray/black
2007 Aston Martin V8 Vantage Supercharged Onyx Black/Black
2001 BMW M3 Imola red/black