Conversion GSR 1.8 Turbo (4G93T) - Wira/Satria/Putra

[niklys]

Another question, my car roof seems to be a little sore to the eyes, both exterior and interior. My foreman managed to get a steal of this sunroof for me, and charge me only for workmanship. Estimated cost is rm800 in total for the roof and workmanship. I’m tempted to go for it. Any words of wisdom to share?

 

[vr2turbo]

Alright. Will play around the Power, Eco, and Hold button once car is ready to run. So, Eco modes allows the gear to shift at 2k+-, where as Power Mode allows higher rev prior to gear shift automatically. But Power Mode makes the gearbox more sensitive? Hmmmmm. I believe the throttle control is by wire, unlikely Power Mode would affect throttle response, isn’t it?

Changing gears at high revs gives you more power, utilizing the engines power. Does not change the throttle response.....

 

[vr2turbo]

Another question, my car roof seems to be a little sore to the eyes, both exterior and interior. My foreman managed to get a steal of this sunroof for me, and charge me only for workmanship. Estimated cost is rm800 in total for the roof and workmanship. I’m tempted to go for it. Any words of wisdom to share?

As for sun roof, it is personal. Some will like, some don't, and especially will you be using it?
The cons are whether it will leak, then again the welding points will it rust and/or weak the roof structure...

 

[sanekit]

ECU override TCU......fight for control......lol

i shift it like a manual. ahahaha.

Alright. Will play around the Power, Eco, and Hold button once car is ready to run. So, Eco modes allows the gear to shift at 2k+-, where as Power Mode allows higher rev prior to gear shift automatically. But Power Mode makes the gearbox more sensitive? Hmmmmm. I believe the throttle control is by wire, unlikely Power Mode would affect throttle response, isn’t it?

u know how these autobox works right? yes, the throttle is control by wire but u know what is there bolted to your butterfly at the throttle body? the TPS sensor. ECU reads your throttle opening via the TPS and also the MAF sensor. the TCU reads signals from the ECU and then controls the voltage and pulse sent to the solenoid in the valve body there. so yes, in PWR mode, your gearbox will be more sensitive on your throttle response.

 

[sanekit]

Changing gears at high revs gives you more power, utilizing the engines power. Does not change the throttle response.....

oh yeah, the does not change the throttle response. i said the gearbox will be more sensitive on the throttle response. haha

 

[vr2turbo]

oh yeah, the does not change the throttle response. i said the gearbox will be more sensitive on the throttle response. haha

Not much chance to play with it, as both cars left at home are manual........lol

 

[sanekit]

Not much chance to play with it, as both cars left at home are manual........lol

haha. for my slowpoke single cam, there's a huge difference in response between PWR and ECO.

 

[vr2turbo]

haha. for my slowpoke single cam, there's a huge difference in response between PWR and ECO.

Yah! before VR transplant was 2.0i single cam auto got that button too......lol

 

[Izso]

Another question, my car roof seems to be a little sore to the eyes, both exterior and interior. My foreman managed to get a steal of this sunroof for me, and charge me only for workmanship. Estimated cost is rm800 in total for the roof and workmanship. I’m tempted to go for it. Any words of wisdom to share?

A few things to consider. Leaking roof, poor welding job, creaky noisy joints due to bad weld, and if it does leak - your interior will get really badly affected.

 

[niklys]

Changing gears at high revs gives you more power, utilizing the engines power. Does not change the throttle response.....

Yeah, i was saying that imo the gearbox mode wont affect the throttle response since it’s controlled by wire and that the gearbox mode merely tweaks the gearbox shifting behavior to requiring higher revs prior to gear shift.

Though, sanekit has a good point there about the TPS+MAF sensors and TCU/ECU ability to read our throttle input and affecting our throttle response sensitivity.

 

[niklys]

i shift it like a manual. ahahaha.


u know how these autobox works right? yes, the throttle is control by wire but u know what is there bolted to your butterfly at the throttle body? the TPS sensor. ECU reads your throttle opening via the TPS and also the MAF sensor. the TCU reads signals from the ECU and then controls the voltage and pulse sent to the solenoid in the valve body there. so yes, in PWR mode, your gearbox will be more sensitive on your throttle response.

By logic, it does seem to be correct that the throttle response sensitivity would increase when TPS/MAF sensor reading our throttle opening at higher revs. Though, imo we need not to be in Power Mode to achieve this. By remaining in a specific gear and keeping levelled with the rev band would achieve the same results i.e. 2nd gear with 3k rpm and above (additionally, holding the gear would allow us being in control rather than giving the TCU shift the gear for us earlier than desired). Then again, i could be wrong too! Hahahaha

 

[vr2turbo]

Best is manual override......lol

 

[niklys]

haha. for my slowpoke single cam, there's a huge difference in response between PWR and ECO.

Single cam and twin cam difference in torque/power delivery is different. Putting aside power and eco mode, imo, as long as you’re in the right rev/torque bandwidth, the response would feel quick and prompt. When vice versa takes place i.e. not in desirable rev/torque band, the response would feel lazy.

Now, single cam rev/torque bandwidth is meaty when it’s on low rev band between 1-4k, while running slightly out of breath once going above 4k (assuming the car is stock with no mods/light mods). The opposite situation takes place for DOHC. Newer engines with variable valve timing (vvt) would assist to reduce the laziness for the pitfalls of either sohc/dohc. Just a guessing, imo, you would feel that your sohc feels “responsive” on the throttle input during Power mode because the gears didnt shift as quick and it had remained in your sohc desired power band, hence increasing the throttle response feel.

 

[niklys]

A few things to consider. Leaking roof, poor welding job, creaky noisy joints due to bad weld, and if it does leak - your interior will get really badly affected.

The foreman shared some photos to give me insights and better understanding of how he would get the sunroof done. He is going to cut the roof of my wira (as seen in photo, same wira aeroback model but not my car) and place the halfcut sunroof into it with the frames together. The reasoning for this execution by the said foreman is to ensure rigidity and reliability. What do you think in your opinion?

 

[niklys]

Just to share with you guys! Interior trims have been installed, pending for the installation of sunroof and my Works Engineering gauges for interior items.

Now, the car is pending for:

(1) Installing Evo 3 intercooler and it’s piping.
(2) Retrofitting the Wira SE front bumper to fit nicely and hide the Evo 3 intercooler and piping that’s sprayed black in colour.
(3) Fitting the rear Wira SE bumper+skirts+number plate holder.
(4) Installing 2.5 inch exhaust piping, with 2 bullets and 1 S-Flow muffler.
(5) Tuning the adjustable BC Racing V1 (front 6k / rear 4k) to street conditions, likely on softer side.
(6) Tuning the fuel mapping and power band via E-Manage Blue piggyback for 1.0 bar of boost utilizing Ron95.
(7) Endorse the car, obtain legal roadtax and insurance to go on the road.
(8) Get the sunroof done with A+B+C pillar wrap with black fabric.
(9) Get the Works Engineering gauges installed.
(10) Paintjob.
(11) Install keyless entry and push-start Epsilon.
(12) Install JBL sound system (6 speakers, 2 tweeters, 1 processor cum amplifier) and Pioneer player.

 

[niklys]

Best is manual override......lol

Agreed. Manual override allows us to being in control while attaining our desired driving experience.

 

[minibeany]

Just to share with you guys! Interior trims have been installed, pending for the installation of sunroof and my Works Engineering gauges for interior items.

Now, the car is pending for:

(1) Installing Evo 3 intercooler and it’s piping.
(2) Retrofitting the Wira SE front bumper to fit nicely and hide the Evo 3 intercooler and piping that’s sprayed black in colour.
(3) Fitting the rear Wira SE bumper+skirts+number plate holder.
(4) Installing 2.5 inch exhaust piping, with 2 bullets and 1 S-Flow muffler.
(5) Tuning the adjustable BC Racing V1 (front 6k / rear 4k) to street conditions, likely on softer side.
(6) Tuning the fuel mapping and power band via E-Manage Blue piggyback for 1.0 bar of boost utilizing Ron97.
(7) Endorse the car, obtain legal roadtax and insurance to go on the road.
(8) Get the sunroof done with A+B+C pillar wrap with black fabric.
(9) Get the Works Engineering gauges installed.
(10) Paintjob.
(11) Install keyless entry and push-start Epsilon.
(12) Install JBL sound system (6 speakers, 2 tweeters, 1 processor cum amplifier) and Pioneer player.

Waiting to see your car roll out from the garage... inspiring..

 

[niklys]

Now, I have one headaching matter about my car which does not have a “correct” or “right” answer. It is about the paint job of my car (exterior only).

Over my short span of research on paintjob, I had understood that paint jobs are separated into different elements of work namely craftmanship on metal/plastic bodywork, primer base, color base, and clear coat base. Additionally, to select a paint job according to our personal preferences and desired output would rely on the ability/craftmanship quality and material quality (budget varies accordingly). Unfortunately, I’m not exposed to any form of car detailing with relations to paint (even among my car buddies). This is where I dearly need your help or to shine the light in the right direction for me, fellow gentlemens.

Desired craftmanship/ability/output

(a) Craftmanship that ensures my car parts are not accidentally painted/damaged for whatsoever reasons i.e. wheels, tyres, adjustable, brake disc/calipers, headlamps.
(b) Proper craftmanship of removing/applying primer, base coat, color coat, and clear coat.
(c) Paint job craftmanship output that puts a smile on our face even after an extended period of time (with proper care i.e. polish/wax/coating)

Questions in mind.

1. Recommendation to undergo/avoid of any paint brands / workshop.
2. Estimated price range for medium and/or good paint job craftmanship.
3. Notes that I should take before making a decision on which paint job.

Ultimately, my budget end in mind is tentatively floating at 3k. I don’t mind to stretch a little out in order to have a peace of mind over the next few years, if necessary. Do advise!

 

[niklys]

Waiting to see your car roll out from the garage... inspiring..

Thank you for being inspired about my journey! I’m excited as hell for my car to roll out from the workshop, which is anytime soon. Once it does, I’ll definitely share it here! Until then and after, you are more than welcomed to join my journey too! Cheers to car modification lifestyle!

 

[sanekit]

Single cam and twin cam difference in torque/power delivery is different. Putting aside power and eco mode, imo, as long as you’re in the right rev/torque bandwidth, the response would feel quick and prompt. When vice versa takes place i.e. not in desirable rev/torque band, the response would feel lazy.

Now, single cam rev/torque bandwidth is meaty when it’s on low rev band between 1-4k, while running slightly out of breath once going above 4k (assuming the car is stock with no mods/light mods). The opposite situation takes place for DOHC. Newer engines with variable valve timing (vvt) would assist to reduce the laziness for the pitfalls of either sohc/dohc. Just a guessing, imo, you would feel that your sohc feels “responsive” on the throttle input during Power mode because the gears didnt shift as quick and it had remained in your sohc desired power band, hence increasing the throttle response feel.

my car is lightly modded saja. and slow too. when i did my swap, the previous autobox already got problems. burnt atf smell and all. i sent it for rebuild and it was driving ok until i start modding the car. the gearbox starts slipping, over revving when upshift and all. sold that gearbox and got the gsr 4wd gearbox. the gsr autobox is way better and i love how the upshift is faster than the previous gb. but this gearbox started to leak somewhere near the 2 pulse generator area. replaced the seals and all but it still leaks. considering to send it for a rebuild but it's gonna cost me around 1.7-2k. haha.

anyway, yes. the autobox response in PWR mode is way more sensitive compared to ECO. like i said, mine in ECO mode is very sluggish like driving a prius in EV mode. it upshift very early at 2.2k, it doesnt downshift even if i floor it. to overtake in ECO i just OD off or downshift to 2nd.

it's good to know another autobox modding kaki. haha. looking forward for your project completion.

Questions in mind.

1. Recommendation to undergo/avoid of any paint brands / workshop.
2. Estimated price range for medium and/or good paint job craftmanship.
3. Notes that I should take before making a decision on which paint job.

Ultimately, my budget end in mind is tentatively floating at 3k. I don’t mind to stretch a little out in order to have a peace of mind over the next few years, if necessary. Do advise!

i think @Izso can help recommend you a good paint shop. i have a friend but he's in nilai. his price is within your budget and does a good job too. you can search on FB for apworkskalerhaus or whatsapp/call him at 011-52598230.