What's the best way to faster acceleration without an ECU upgrade on naturally aspirated engine?
Crankshaft? Pistons? Clutch?
Also the suspension/brakes/transmission are already upgraded to the best ones I can afford. And I also can't really loose any more weight.
>INB4 Get a turbo
I don't want one.
Gearbox with a lower gearing
Heavily depends on the car. Some cars respond well to headers and some sort of intake. Look up the forum of your car and there will be more info.
Cams are probably the next thing I'd suggest.
But remember that anything that you won't be as good as it could be without tuning. Tuning probably isn't as hard or expensive as you think.
Again look at forums specific for your car
Wouldn't that also limit the top speed while cruising on the highway?
Wouldn't the lightweight engine parts make it rev better hence it will accelerate better?
Also is there like a base price for the work on engines/gearboxes or something like that? If I visit a mechanic I have no idea if he is ripping me off or not...
Skim the head
Thinner head gaskets
Remove emissions controls
This
But seriously, why user? ECU upgrade is easier than messing with the engine.
Proper intake, fuel delivery, and exhaust is a good way to start I guess
>Remove emissions controls
Can't do that in this police state...
AFAIK my engine is quite new and not very well supported and the ECU upgrade is just a blackbox that fools the sensors and I'm quite scared of that kind of "upgrade"
I would like to keep the car. It's not a throwaway... That's why I don't mind investing in it...
Lightet flywheel for dem epik revz
Also what Police country do you live in
>Wouldn't the lightweight engine parts make it rev better hence it will accelerate better?
It'll be more responsive to throttle input, but acceleration is determined by your engine's power output and how that power is transmitted to the tires, and how much grip those tires have.
If your engine is 'quite new' as you say, then you'll likely find that very little can be done mechanically without also remapping/replacing the ECU or using an add-on aftermarket unit that does the same thing.
Modern EFI keeps a very close eye on the engine's sensors and emissions, and most of the easy ways that used to be used to get power out of an NA engine will be irrelevant or inaccessible with today's engines.
What exactly is your car and engine?
>Also is there like a base price for the work on engines/gearboxes or something like that? If I visit a mechanic I have no idea if he is ripping me off or not...
No. Everything varies between makes and (often) models, and these days if you go to an ordinary mechanic and tell them you want your car to go faster, they'll either point you at a tuning shop or recommend an aftermarket ECU module anyway.
A workshop that handles proper tuning will ask a premium price, and guess what - their first step will involve ECU remapping, too.
It's not like Forza or whatever racing games you've been playing where you pay some money and suddenly everything is better - modern engines are already quite efficient, and you'll start bleeding money as soon as you start looking at things like forged internals, high compression pistons, cams, head porting, etc.
OK, I've looked at the remaps and half the people say that it's not worth it and the other half might have been scammed. There might be one product that MIGHT help but it's like 500USD. What now?