QUOTE(irsyadfy @ Mar 11 2020, 04:04 AM)
tonggeng aja.
belakang cerita.
backdoor is current trend.
LOL
i tengah cari my post on genting hill climb...
forgot when...
nanti i post
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1st time go up genting with 5 adults. Test car with 4 other friends.
Really straining the car.. Lol
Can smell the heated engine parts..
1st and 2nd gears going up and sometimes 2nd gear going down..
3 to 4k rpm when road allows and 1.5 to 2k when car don't want to change to 1st gear...
Quite a struggle if I may say so..
Need to change engine and gear oil next month..
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Manual cars vs auto cars.
In the bezza, I was trying my best to keep the car at 3k rpm ascending genting.
That, I find is where the vvt comes alive.
Meaning that the camshaft switches from eco to performance.
In a manual car, its easy to maintain that rpm and thus get the most of the engine going uphill. Or taking a corner or racing.
If bezza can select 1st gear manually, then that would be great..
Certain areas where I wished the gearbox gb will just shift to 1st but it stubbornly maintains 2nd and forces the engine to lug around at 1.5k rpm..
All the while going uphill, my acceleratior pedal was to the metal, full on.
This is not ideal..
We are not in control of the car, the car is in control of us. This is an auto going to genting.
In a manual, I am in control of the car..
The middle ground will be a semi auto car where we can control or place the gb in any gear we choose and have auto.
That's why cars with sporting intentions have either manual gb or semi auto gb like the selespeed, dsg (vw gti), porsche pdk or fully controllable full auto gb (which can handle the torque) but not the cvt.. Cvt gb can't handle to high torque of performance engines..
Edited..
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its an experience la...
imo, the combo of an eco centric ecu and the gearbox tcu that wants to upshift asap, is not a good combination to climb steep hills...
it does other tings well, i'll say, but steep hill climbing is not its forte..
the engine torque peak i feel is at around 4-5k rpm...
but the gb wanna drop gear when at 2.5 - 3k rpm...
so we always end up where the torque is at the lowest = least power to pull...
but that equates to good economy..
very hard to have both..
most of the time i dont do hill climbs like genting, so most of the time, the car is ok by me...
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Ah yes..
I forgot to add..
Braking downhill also depends on ur mass..
The higher the mass the more work the brakes must perform to slow down.
Physics..
So, higher mass = slower speed.
Lower mass = higher speed
Before the brakes over heat.
Open ur ac vents when going down hill. U can smell ur brakes cooking.
When u smell that, it's a good indicator that u must slow down.
I came down genting twice, 1 with high load, 1 empty.
Can feel the difference when the brakes begin to fade..
With load, within 3 minutes start the steep decent can smell the brakes cooking aledi..
Safe driving ahead fellas.
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going down hill and engaging lower gear to obtain engine braking will not raise temp as much cos not much fuel is used,
the engine is just turning over cos the car's momentum and the engine's compression serves as the braking.
wears the engine out tho as higher rpm compared to just plain caliper braking...
but unless u have GOOD racing brake disc and pads, they will over heat quickly on constant usage going downhill (then no brakes).
so better use engine braking..
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https://forum.lowyat.net/index.php?act=Sear...l=genting&st=25This post has been edited by jtan.pdr: Mar 11 2020, 04:33 AM