Hi guys, new member here, as a rookie to modification world, wanna ask is that any way to upgrade your car performance without turbo or supercharger modifications?
(cuz the maintaince and cost too much lol)
Besides, one of my friend recommd me to change the 1.8 throttle body, but there are others of my friend say it is not worth, any idea?
Last but not least, my car is 1st generation vios 06 year model (ncp42)
My 2 cents.
- Since this is a shared car between you and someone else, don't bother modding for power. Make the car handle better with a set of good aftermarket suspension, a lightweight set of rims, a good set of tyres, lightweight larger brake calipers and rotors, sound proofing and better headlights would make the car nicer to drive and possibly even easier to drive.
- Don't add a ton of UR bars too, understand what each bar does and only decide which bars you need and install those only. Adding everything will stiffen everything and that may not translate into a better drive.
- Exhaust mods at this point is pointless. If you do big mods with your engine then change exhaust to match, sure. Do nothing and just change exhaust - waste money. Stock is good enough la. 4-2-1 or 4-1 won't make financial sense, it's not like your car currently is slow. Vios' in general have great pickup and have great FC. They just don't handle well most of the time.
- Changing to a large TB will have some downsides. If you're unlucky you'll get "on/off" throttle. In my own experience with Myvis, the 2nd gen has a larger TB than the 1st gen and I have both. Swapped the two around and the response was sliiiiiiiiiiiiiiiightly better on the 1st gen Myvi. Not significant. The 2nd gen one has larger valves and all - so if I swapped the head then I'd have better performance. But I wasn't going to do that on a pointless minor performance upgrade. The head gaskets cost more than the performance gained.
Like I said - the Vios is a great performing car. It's not gonna beat any land speed records or outrun a R35, but it's not a slouch and drives pretty well. With a good set of suspension, brakes and rims+tyres, you'd have a pretty nice car to drive around in. Learn to drive the car fast bro without the performance mods. I know a guy who drives his Myvi 1.5 STOCK (except for 15" rims + good tyres) faster than a lot of people going up Genting. In fact he's so fast people driving way more powerful cars have claimed he has a modded car until they see his tiny little exhaust pipe and stock engine bay.