yup...few weeks already

basically is trade in old and get new

#downgrade


i am not sure now ..but last service at there was like 5 6 years ago

driving single front 210kpa back 190 kpa

driving with passengers and load front and back 220kpa


keep the tyre pressure around there. over inflate reduce grip, makes the car bumpy and over time induces uneven tyre wear. SC recommend higher because people normally dont check pressure often.

Updated in the first post. Thanks for your contribution.

Premium variant owner (which use Apple Music), do you guys having issue with the Head Unit where Apple Music was playing via the BT and the player does not play anymore after picking up the call. Anyone has such issue?

This post has been edited by scarxxx: Apr 13 2018, 09:42 AM

I put front 220kpa back 200kpa on my lousy silverstone twice a month, if over the middle of the tyre wear faster, if under the side of the tyre wear faster. Normally front tyres wear faster, shifted side front and back once during 17,000km. My tyres still looks 'good' now 24,000km but will change all 4 when reaching 40,000km. Not sure can fit in 185 60 r15 CC6 or not, i prefer less bumpy drive as i do not drive aggressively.

I remember there is a online to to calculate what kind of tires different from stock. I link to you later. 195/55/r15 should be OK

Anyone Know where can do bypass Audio Head Unit for the Video playing when handbrake release? Head Unit is with the latest one, end of year 2017 (Not Android Version)

user posted image

This post has been edited by croydon: May 18 2018, 02:58 PM

Hi guys, over these few weeks i have did some mods. these mods are in culmulative order. so your results may vary, these are just my opinion
1.15inch wheel 6.5J
2. Front top tower bar & stiff ring
3.continental CC6 tyre
4.rear 16mm anti roll bar
5.reverse sensor(ori sensor just terrible weh, how many times i need to scrape my bumper)

1.RIM(RM600 with nuts and ring)
i changed my rim without changing my stock silverstone tyre. the initial feeling is that, i can feel the 4 corners are lighter, the best way to describe it is, i have remove heavy object from 4 corners of the car.
Before i install the aftermarket rim, i compare the weight is indeed lighter, how much im not sure, but definitely can feel by hand. However it dosent improve handling, just feel the car is lighter like you unloaded something, but feel a little better.

2.Front top tower bar & stiff ring(RM270+50+ 195)
got the advised from friend, install stiff ring should just install bar as well, and so i did. it feels the front stock suspension are now held strongly, the suspension now does better work in absorbing uneven roads. cornering has a little sharper responds but only if you corner hard.

3. Continental CC6 195/55/R15(RM 740, balancing, install, alignment, no nitorgen)
It is strange that i pick a comfort tyre when i did other mod to improve handling, my goal is trying to enhance this car's intrinsic good properties, like quietness and handling.
First thought on the tyres, no more spinning start. that is the biggest safety improvement just by changing tyre. silver stone has roaring sound, i wont say cc6 reduce all but has cut it down to a noticeably. driving on highway feels more comfy, more confidence in cornering even using this comfort tyre. The salesman does mention my silverstone is still usable and need not to change, but is just too dangerous to use them.

4. Rear anti roll bar 16mm(bought second hand, new priced at RM420)
If you are looking to improve your car handling this is the first mod you should do. notice i have this bar after the previous upgrades, the body roll is significantly lowered, very obvious effect. it does improve your car's handling and more importantly comfort when cornering. if you are looking into buying one, go for 19mm as new 19mm is 480 while 16mm new is 420. the thickness affect roll bar stiffness by factor of power 4{google for this info to verify}, adding RM60 from 16mm to 19mm is worth the extra as it give quite significant effect while it probably will stay on your car until you sell it off.

5. reverse sensor(RM250)
for the love of your heart arteries, please change them. find other place that is cheaper, i believe i have been scammed at that price.

Summary
1. changing rim same size as stock dosent give much advantage, just for the looks. dont bother changing them if you just drive daily, not worth it unless for the looks. Many from forums and shop do recommend going 1inch + from stock, if you are changing rim, do that.
2. i have these on together, to my experience, is not worth spending on these, for RM500 ish, save it or invest it on other area. the effect is gives just is not as significant as other parts
3. change to good tyres as soon as you can, esp on silverstone tyres. Not only they are bad, is dangerous after 50% wear, get entry level tyres from michillen, goodyear, bridgestone or continental. This is the single upgrade that will completely change how you feel about your car, nontheless , do it to ensure your own safety
4. install the 19mm ARB for best effect, it really does reduce body roll
5. Just tossed the old one, i havent have nightmare since.

This post has been edited by littlegamer: Apr 14 2018, 12:01 AM

Nice write up. Any future upgrade that you considering?

If I change my reverse sensor to after market, that's mean it only void reverse sensor warranty right?

Once you change to a better sensor, You claim warranty from the place where you buy the sensor....

i do agree that the sensor is kind of slowpoke and seems like sensor coverage consists of blind spot

anyone install spoiler (other than the stock from proton)?

This post has been edited by fantasy1989: Apr 14 2018, 02:12 PM

Maybe change the existing head unit, I got one cheap online that support reverse cam and touch screen.
As far as comfort goes, those upgrade should be sufficient.

This post has been edited by littlegamer: Apr 14 2018, 02:39 PM

Reverse sensor is plug and play, if want to go back warranty can DIY. But...... The sensor is technically broken when new z for every car

This post has been edited by littlegamer: Apr 14 2018, 02:46 PM

Rear ARB without the front top tower, is it a pair thingy? Is it because now you have both bar, that's why the whole handling improved? If jz rear ARB, will it still give apparent handling improvement?

So true. That reverse sensor is useless from day 1. I revert back to mark 1 eyeball and gut feelings.

It is said that RWD car got best effect from front bar. And FWD rear bar.
I don't refute the idea a pair of strut makes the car feel better. But you will notice more from just ARB. Strut bar doesn't need to come in pairs or in certain combinations. Other car forums suggests that installing strut bars wrongly might even have negative effect.
But the rule of thumb, go with ultra racing stage 1, you won't overspend or go wrong. And ARB give most effect if you have no mods to begin with.

Just abit out of topic...wanna let go my persona year 16 due to upgrade to suv...pls pm me if anyone interested..tq

Ooo as much as i like to stay stock, the body roll of this car taking corners is soooo apparent.. another thing is the rear suspension, feels very springy, if go across bump a little too fast, can feel the items in my boot being launched up a little.. wonder is ARB can solve both or solve mostly the first one only.

Persona VVT suspension is soft. Abit too soft for me. Which is why i change to adjustable. ARB only gonna reduce the body roll.

just raising a doubt for discussion purpose, the rear torsion beam setup itself is already a very thick anti roll bar.installing another 20mm thick steel bar on top really give significant difference?