QUOTE(ZeroHavoc @ Apr 24 2014, 01:15 PM)
160 on 4th gear is on what rpm?
Around 5 to 6.Proton Prevé V20, Don't provoke the modest beast!
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 Apr 24 2014, 03:34 PM
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824 posts Joined: Apr 2008 From: Temerloh,Kuantan  
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Apr 24 2014, 04:10 PM
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48 posts Joined: Feb 2010
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WTA sifu:
firstly i'm poor in auto technical knowledge, hence i keen to know wat is the max output if turbo turn OFF? assuming the stated max output for CFE (103kw/5000rpm) on paper was cal when turbo ON. pls educate. thx.   |
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Apr 24 2014, 04:55 PM
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0 posts Joined: Dec 2013
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QUOTE(kulatkia @ Apr 24 2014, 04:10 PM) WTA sifu: I'm not a sifu, just a high school student (and lowyat silent reader lol). Your question may become a subject of laughter, honestly. But it's a good question though. Anyway, all turbocharged engines in the world have their turbos run PERMANENTLY. It's a vital mechanical of a turbocharged engine. No such thing as "turbo off" or whatever. The concept is similar to supercharger but turbos work differently.firstly i'm poor in auto technical knowledge, hence i keen to know wat is the max output if turbo turn OFF? assuming the stated max output for CFE (103kw/5000rpm) on paper was cal when turbo ON. pls educate. thx. To give you an idea... Normal engine are just like our nose. Engine take outside air, burn, CO2 out. Turbo/supercharged engine.. imagine your nose is a vacuum cleaner lol. Suck more air = more oxygen = bigger bang in the engine = more power and torque. It doesn't really work like that of course, just to give you an idea of it's function  This post has been edited by amimjk: Apr 24 2014, 05:15 PM |
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Apr 24 2014, 04:58 PM
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Junior Member
122 posts Joined: Oct 2010
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QUOTE(amimjk @ Apr 24 2014, 04:55 PM) I'm not a sifu, just a high school student (and lowyat silent reader lol). Your question may become a subject of laughter, honestly. Anyway, all turbocharged engines in the world have their turbos run PERMANENTLY. It's a vital mechanical of a turbocharged engine. No such thing as "turbo off" or whatever. The concept is similar to supercharger but turbos work differently. Maybe he wants to noe the power of campro cfe without turbo since it's abit different compare to the iafm oneTo give you an idea... Normal engine are just like our nose. Engine take outside air, burn, CO2 out. Turbo/supercharged engine.. imagine your nose is a vacuum cleaner lol. Suck more air = more oxygen = bigger bang in the engine = more power and torque. It doesn't really work like that of course, just to give you an idea of it's function This post has been edited by cts0418: Apr 24 2014, 04:59 PM |
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Apr 24 2014, 05:14 PM
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0 posts Joined: Dec 2013
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QUOTE(cts0418 @ Apr 24 2014, 04:58 PM) Maybe he wants to noe the power of campro cfe without turbo since it's abit different compare to the iafm one Well nobody would want to cabut the turbo and go to dyno  Maybe gotta wait for the new Proton "GSC". Kedai kopi says it uses NFE engine for the top spec (essentially the NA version of CFE) |
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Apr 24 2014, 06:16 PM
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1,879 posts Joined: Jan 2003 From: Medan, ID
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The idea is to aim at hitting the peak torque RPM after you shift.
This post has been edited by alexei: Apr 28 2014, 11:12 PM |
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Apr 24 2014, 06:24 PM
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527 posts Joined: Dec 2007
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QUOTE(alexei @ Apr 24 2014, 06:16 PM) The idea is to aim at hitting the peak torque RPM after you shift, so my guess is to shift up at peak HP, because that's when the torque starts to go down as RPM increases. so if 4k is peak torque, 5k is peak hp....we shift at 5k RPM then it dropped back to 4k RPM which is the peak torque for maximum acceleration?After shift up, RPM will drop back to peak torque and accelerate faster. |
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Apr 24 2014, 06:37 PM
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All Stars
10,859 posts Joined: Jan 2003 From: Sarawak
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QUOTE(alexei @ Apr 24 2014, 06:16 PM) The idea is to aim at hitting the peak torque RPM after you shift, so my guess is to shift up at peak HP, because that's when the torque starts to go down as RPM increases. ohh.. thanks for the knowledge.. so if semi-auto just hit red line then shift.. now i got it After shift up, RPM will drop back to peak torque and accelerate faster.  |
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Apr 24 2014, 07:49 PM
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58 posts Joined: Jan 2011 
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YAY~!!! Loan sudah lulus~~~... this monday gonna see the agreement... but what colour!! Preve CFE.. huiii.. 2bulan nak boleh ke lulus..
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Apr 24 2014, 08:49 PM
Show posts by this member only | IPv6 | Post
#970
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Junior Member
56 posts Joined: Dec 2013
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QUOTE(rachel_xxx @ Apr 22 2014, 07:17 AM) hi! yup done the carpet, they just cut as per the original carpet but bigger size or as you request. similar to the custom cut by some forumer selling. cover the side as well. no side stiches. can u upload the pictures?? quality wise i didnt measure la agak agak more or less as per claimed 13 mm. overall for rm88-rm5(new signup to the website), i satisfied la. shopwise easy to find.   |
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Apr 24 2014, 08:49 PM
Show posts by this member only | IPv6 | Post
#971
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Junior Member
56 posts Joined: Dec 2013
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QUOTE(rachel_xxx @ Apr 22 2014, 07:17 AM) hi! yup done the carpet, they just cut as per the original carpet but bigger size or as you request. similar to the custom cut by some forumer selling. cover the side as well. no side stiches. can u upload the pictures?? quality wise i didnt measure la agak agak more or less as per claimed 13 mm. overall for rm88-rm5(new signup to the website), i satisfied la. shopwise easy to find. |
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Apr 24 2014, 08:57 PM
Show posts by this member only | IPv6 | Post
#972
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Junior Member
56 posts Joined: Dec 2013
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QUOTE(ZeroHavoc @ Apr 19 2014, 08:27 PM) Can anyone enlight me on this im quite worry here 270.9km for how much RM?? |
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Apr 24 2014, 09:02 PM
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138 posts Joined: Jan 2009
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QUOTE(preveverp @ Apr 22 2014, 03:30 AM) Preve Hard Startup , Especially during Warm engine. Although I'm on CFE, I did experience something almost similar to this for the first time very recently.Lately it's been more frequent, I have difficulty starting up my car when engine is warm. Maybe less than half hour after stopped engine. It will crank longer than usual, then engine feels like it's gonna start but it will die off.. Sometimes even when cranking up, it won't even start. Have to retry 1 or 2 more times only it will start. What is the problem? Anyone experience before? Please advice. I sent to SC last service, they said they adjusted the timing for me, but now still same problem. Urgh..... Note: So far no problem during cold start in the morning. The engine was warm. It started alright but then died after around 2 seconds. The consecutive try was ok but it did make a sound as if it was about to die off again but I quickly pressed on the gas and I believe it helped. Regarding the cold start, mine sometimes cranks a good few seconds in the morning. I.e. there's potentially an issue here. |
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Apr 24 2014, 09:03 PM
Show posts by this member only | IPv6 | Post
#974
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Junior Member
56 posts Joined: Dec 2013
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QUOTE(ZeroHavoc @ Apr 19 2014, 01:27 PM) Any manual owner here willing to share their FC? Mine topup 105..Got 600++ Km...9.3L/100Km.. Ok laaa! |
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Apr 24 2014, 09:03 PM
Show posts by this member only | IPv6 | Post
#975
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Junior Member
56 posts Joined: Dec 2013
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QUOTE(ZeroHavoc @ Apr 19 2014, 01:27 PM) Any manual owner here willing to share their FC? Mine topup 105..Got 600++ Km...9.3L/100Km.. Ok laaa! |
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Apr 24 2014, 10:57 PM
Show posts by this member only | IPv6 | Post
#976
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Senior Member
1,879 posts Joined: Jan 2003 From: Medan, ID
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preveverpPreve use key to start, right?
This post has been edited by alexei: Apr 28 2014, 11:12 PM |
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Apr 24 2014, 11:17 PM
Show posts by this member only | IPv6 | Post
#977
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Senior Member
1,879 posts Joined: Jan 2003 From: Medan, ID
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-- double post
This post has been edited by alexei: Apr 28 2014, 11:12 PM |
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Apr 24 2014, 11:21 PM
Show posts by this member only | IPv6 | Post
#978
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Senior Member
1,879 posts Joined: Jan 2003 From: Medan, ID
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Example of optimum shift point in this website:
http://www.eecis.udel.edu/~davis/z28/winte...yno/dyno060502/ Scroll down to the section of 'Optimal Shift Points'. |
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Apr 24 2014, 11:25 PM
Show posts by this member only | IPv6 | Post
#979
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Newbie
9 posts Joined: May 2012
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QUOTE(alexei @ Apr 24 2014, 11:17 PM) If you want to drag race, is to shift when 'the power drop at the lower gear coincides with the power rise at the higher gear'. Or you could just put to "S mode" and let the RPM maintain at peak HP. That's the beauty of CVTSo, taking the stock dyno chart below as example, it seems you need to rev until 5500 RPM, then shift, and if the RPM should drop to 4500 RPM, because the HP at the two RPM is the same... So, need to test few times to know at each gear, what is the best RPM to shift, which is why some dyno charts are done at each gear position. So, the perfect shift would mean at each gear, you shift up at the right RPM that matches the HP of the next gear, all the way until the final gear. [attachmentid=3944830] |
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Apr 25 2014, 12:00 AM
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Junior Member
48 posts Joined: Feb 2010
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QUOTE(amimjk @ Apr 24 2014, 04:55 PM) I'm not a sifu, just a high school student (and lowyat silent reader lol). Your question may become a subject of laughter, honestly. But it's a good question though. Anyway, all turbocharged engines in the world have their turbos run PERMANENTLY. It's a vital mechanical of a turbocharged engine. No such thing as "turbo off" or whatever. The concept is similar to supercharger but turbos work differently. Not too worry I'm learning. I was told by my SA, turbo only turn on when rpm reach above 2.5 so I have this question in my mind :blush in fact that wrong info capture after I read Ur explanation... Thx anyway To give you an idea... Normal engine are just like our nose. Engine take outside air, burn, CO2 out. Turbo/supercharged engine.. imagine your nose is a vacuum cleaner lol. Suck more air = more oxygen = bigger bang in the engine = more power and torque. It doesn't really work like that of course, just to give you an idea of it's function  |
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