Toyota Vios n/a modification

[Liang95]

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)

 

[ixeo]

Honest opinion. Don’t bother. Save money and change car in the future.

N/A mods vs ROI in cost not worthwhile. Turbocharging is the best ROI, and significant.

A 3hp increase is like turning off your air con.

What you should do is buy the best tires you can afford. They are the best mod ever. You’ll even see more power* as good tires can put more power on the road instead of slipping.

 

[Liang95]

Honest opinion. Don’t bother. Save money and change car in the future.

N/A mods vs ROI in cost not worthwhile. Turbocharging is the best ROI, and significant.

A 3hp increase is like turning off your air con.

What you should do is buy the best tires you can afford. They are the best mod ever. You’ll even see more power* as good tires can put more power on the road instead of slipping.

Thanks for the advice. So honestly besides tyre, the others mod are not so recommended?

 

[ixeo]

Thanks for the advice. So honestly besides tyre, the others mod are not so recommended?

Intake modification for a 1.5L NA engine, the gains will *feel* like full throttle with air con off. You try yourself and see is it significant difference?

Reason is the air con compressor will sap power from the engine. So free up the power to “simulate” the gain. And ask yourself can feel or not?

If you want to mod, start with tyres, and maybe strut bar. Handling stuff, and learn to control/drive better.

Trust me. I modded N/A, then I swapped a turbo engine in. The money I spend on N/A really gain very little. Turbo was a night and day difference.

 

[Liang95]

Intake modification for a 1.5L NA engine, the gains will *feel* like full throttle with air con off. You try yourself and see is it significant difference?

Reason is the air con compressor will sap power from the engine. So free up the power to “simulate” the gain. And ask yourself can feel or not?

If you want to mod, start with tyres, and maybe strut bar. Handling stuff, and learn to control/drive better.

Trust me. I modded N/A, then I swapped a turbo engine in. The money I spend on N/A really gain very little. Turbo was a night and day difference.

Ya, tried before with air corn off, no wonder thats a reason behind of it. Thruth revealed lol, btw just change rim and upgrade the adjustable last month, honestly speaking thats a huge difference before and after, but still thinking whats wanna spend next, ultra racing bar or exhaust system or enough mod.

 

[RENESIS VIII]

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)

Convert to manual gearbox. You get more power from your car while at the same time, your fuel consumption can be lower too.

 

[Liang95]

Convert to manual gearbox. You get more power from your car while at the same time, your fuel consumption can be lower too.

I wish to convert to manual, but sometimes my sister drive my car and she already forget how to drive manual lol

 

[RENESIS VIII]

I wish to convert to manual, but sometimes my sister drive my car and she already forget how to drive manual lol

The highest performance gain should be from a manual conversion as you can actually utilize more power from your engine into your wheels. But since this option is out, then you need to look at other things.

Perhaps a full exhaust system with a 4-2-1 extractor, centre midbox/resonator, larger piping diameter by maybe 0.2 to 0.4 inch larger than stock piping size and a S-flow muffler. Don't bother much about air filter mods despite what many will say. Some of them are expensive and really it doesn't make as much difference compared to an exhaust system mod. For better response, you can consider looking at tweaking the ignition timing. Depending on how you set up the timing, it really can make the engine response different. At least that is how it is for my old engine with distributor ignition system.

 

[Liang95]

The highest performance gain should be from a manual conversion as you can actually utilize more power from your engine into your wheels. But since this option is out, then you need to look at other things.

Perhaps a full exhaust system with a 4-2-1 extractor, centre midbox/resonator, larger piping diameter by maybe 0.2 to 0.4 inch larger than stock piping size and a S-flow muffler. Don't bother much about air filter mods despite what many will say. Some of them are expensive and really it doesn't make as much difference compared to an exhaust system mod. For better response, you can consider looking at tweaking the ignition timing. Depending on how you set up the timing, it really can make the engine response different. At least that is how it is for my old engine with distributor ignition system.

Thats something new for me as the ignition timing, as for the extractor, I research that there are 4-2-1 and 4-1, is that any difference on mod?
Besides that, is that any effect if change throttle body to a larger one(1.8) ?

 

[6UE5t]

Upgrading to larger TB will increase air intake but again as Ixeo mentioned, the gain is marginal only. For NA engines, you need to do almost end-to-end mods from intake to full exhaust plus some remapping to start feeling a decent gain and by then you'd already spent quite a lot of money. Since your car is an auto, that's even worse because what ever gain that you get will get masked more by the sluggish automatic. I'm not saying you should not mod, but I guess you should not set your expectation too high.

I also agree with Ixeo that the best mod and the easiest you can do for your car is get the best high performance tire available for your size. That will improve your car handling and cornering significantly. Then slightly stiffer suspension with thicker antiroll bars should be enough to help you have a bit more fun in the car, plus feeling more safe and stable in the process too. Next should be braking, especially if your stock brakes are not so good. Handling and braking are more important mods than power. Only after you got those sorted out then only start thinking about power mods.

 

[vr2turbo]

Honest opinion. Don’t bother. Save money and change car in the future.

N/A mods vs ROI in cost not worthwhile. Turbocharging is the best ROI, and significant.

A 3hp increase is like turning off your air con.

What you should do is buy the best tires you can afford. They are the best mod ever. You’ll even see more power* as good tires can put more power on the road instead of slipping.

I remember one member mentioned, send his myvi for dyno. With and w/o air con there was a 10bhp lost......lol

 

[Liang95]

Upgrading to larger TB will increase air intake but again as Ixeo mentioned, the gain is marginal only. For NA engines, you need to do almost end-to-end mods from intake to full exhaust plus some remapping to start feeling a decent gain and by then you'd already spent quite a lot of money. Since your car is an auto, that's even worse because what ever gain that you get will get masked more by the sluggish automatic. I'm not saying you should not mod, but I guess you should not set your expectation too high.

I also agree with Ixeo that the best mod and the easiest you can do for your car is get the best high performance tire available for your size. That will improve your car handling and cornering significantly. Then slightly stiffer suspension with thicker antiroll bars should be enough to help you have a bit more fun in the car, plus feeling more safe and stable in the process too. Next should be braking, especially if your stock brakes are not so good. Handling and braking are more important mods than power. Only after you got those sorted out then only start thinking about power mods.

Thanks for the advise, mayb I will go for the handling first rather than performance parts.

 

[Liang95]

I remember one member mentioned, send his myvi for dyno. With and w/o air con there was a 10bhp lost......lol

Seriously? Lol

 

[RENESIS VIII]

Thats something new for me as the ignition timing, as for the extractor, I research that there are 4-2-1 and 4-1, is that any difference on mod?
Besides that, is that any effect if change throttle body to a larger one(1.8) ?

4-2-1 gives more torque on low to mid range RPM while 4-1 will shows its performance gain on mid to high range RPM. As your automatic is not as rev happy as manual, I think 4-2-1 should benefit you more in this case. Like my own car for example, after I changed to 4-2-1 extractor, the low range RPM power is much better than before. Not just talking about pure performance, but even during normal driving, I find it easier and takes less effort to get the car going. I can be light with the throttle and still get the car going without problem.

I think by changing the throttle body, it will only affect your intake air flow slightly. Doesn't make much of a difference and throttle body is a very expensive part to replace if you are going for reputable brands. Spend the amount elsewhere like on a full exhaust system or on tyres like 6UE5t mentioned will allow you to feel more difference than changing the throttle body.

Throttle body change can be left for later. I think for a start, it is better for you to try out something that you really can feel the changes in performance instead of something that makes very little difference.

 

[vr2turbo]

Seriously? Lol

That is why any mod getting 2 to 3bhp you will feel next to nothing, probably like most say smoother drive....lol

 

[ixeo]

That is why any mod getting 2 to 3bhp you will feel next to nothing, probably like most say smoother drive....lol

Wasting time. And money.

Exhaust always “feel” fast because of the sound. End up still damn slow.

Make no mistake, feeling fast and fast is very different.

Don’t waste time siok sendiri. Also, exhaust gains (extractor + exhaust system) usually at the peak RPM. How often you drive at peak?

 

[lsm1991]

hmm no turbo or supercharger mods ehh....

i think the most practical will be a 2zz conversion
(not saying cheapest, just practical)

 

[vr2turbo]

hmm no turbo or supercharger mods ehh....

i think the most practical will be a 2zz conversion
(not saying cheapest, just practical)

That is what you mean mod for power.....lol

 

[Izso]

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.

 

[ixeo]

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.

Manual?

They forget to check between his legs. Balls of steel.