QUOTE(dares @ Aug 9 2012, 01:06 PM)
Post #503. Turbo charged thread.QUOTE(ckming @ Aug 9 2012, 12:18 PM)
Proton Prevé V14, Turbocharged Car; Supercharged Thread
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Aug 9 2012, 01:08 PM
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Aug 9 2012, 01:09 PM
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Aug 9 2012, 01:11 PM
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Aug 9 2012, 01:13 PM
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QUOTE(BartS @ Aug 9 2012, 12:58 PM) Funny you should mention that. Want to discuss about Preve's torque curve. After 4K rpm the torque should dip down but the other day when I was playing with paddle shift, when I reach 5K rpm, the car suddenly had tremendous amount of pull (torque). Very much more than when it was at 4K. Had to downshift quickly as the revs were climbing too fast. Has anyone else experienced the same? Although max torque starts to drop off above 4000RPM, but your power is still increasing until max at 5000RPM. Above 5000RPM power drops off but not much. That's why you can still accelerate.From the torque curve here: http://i293.photobucket.com/albums/mm76/ha...FEtruestory.jpg I was able to calculate the power at RPM and charted a graph of torque and power. Formula used was: Power [kW] = Torque [Nm] x Speed [1/min] / 9549 source: http://www.rri.se/index.php?DN=28#080 This post has been edited by sanadi: Aug 9 2012, 01:19 PM |
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Aug 9 2012, 01:14 PM
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Aug 9 2012, 01:23 PM
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QUOTE(sanadi @ Aug 9 2012, 01:13 PM) Although max torque starts to drop off above 4000RPM, but your power is still increasing until max at 5000RPM. Good graph. From the torque curve here: http://i293.photobucket.com/albums/mm76/ha...FEtruestory.jpg The relationship between torque/bhp between 4-5K is still somewhat a grey area for me. I always equate 'pull' to torque. At 5K, the car was behaving very differently. From 2K-4K, there's power but it's not 'seat of the pants' sensation. At 5K, it feels just like that. |
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Aug 9 2012, 01:24 PM
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Aug 9 2012, 01:25 PM
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Aug 9 2012, 01:31 PM
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QUOTE(BartS @ Aug 9 2012, 01:23 PM) Good graph. Think of it this way (not really accurate but rough estimation):The relationship between torque/bhp between 4-5K is still somewhat a grey area for me. I always equate 'pull' to torque. At 5K, the car was behaving very differently. From 2K-4K, there's power but it's not 'seat of the pants' sensation. At 5K, it feels just like that. Torque: NM/RPM (pulling power per RPM) Power: Torque X RPM (work done by torque times how my RPM it is repeated) at 5000 rpm you less torque than 4000 rpm. But you are doing more of that work 5000 times vs 4000 times. Therefore you get more work done. Or at 2000rpm: Kerja kuat tapi jarang-jarang (2000 time working) at 5000rpm: Kerja kurang sikit tapi selalu (5000 times working) |
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Aug 9 2012, 01:33 PM
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QUOTE(fulat @ Aug 9 2012, 01:14 PM) sound proofing like foam... but hyperflex is like stick on the the matter in order to provide sound/heat proofing Think you're referring to 'Accumat Hyperflex', sound dampening mats. Are they any good against the high pitch whine of the CVT?Added on August 9, 2012, 1:35 pm QUOTE(sanadi @ Aug 9 2012, 01:31 PM) Think of it this way (not really accurate but rough estimation): Thank you for your explanation. Don't think I'll be revisiting 5K rpm too soon. Car's still new. Don't want to damage it from over revving.» Click to show Spoiler - click again to hide... « This post has been edited by BartS: Aug 9 2012, 01:35 PM |
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Aug 9 2012, 01:35 PM
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QUOTE(BartS @ Aug 9 2012, 01:33 PM) Think you're referring to 'Accumat Hyperflex', sound dampening mats. Are they any good against the high pitch whine of the CVT? not accumat. other japanese brand. and not sound dampening only... heat isolator too. that s why i wanna know how u test your foam. i wanna follow test my hyperflex |
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Aug 9 2012, 01:41 PM
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Aug 9 2012, 01:48 PM
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QUOTE(fulat @ Aug 9 2012, 01:35 PM) not accumat. other japanese brand. and not sound dampening only... heat isolator too. that s why i wanna know how u test your foam. i wanna follow test my hyperflex I don't have a db meter. So this has to be a test from your own ears. Rather than I badly explain about autofoam, here are some links ... » Click to show Spoiler - click again to hide... « This post has been edited by BartS: Aug 9 2012, 01:51 PM |
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Aug 9 2012, 01:53 PM
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QUOTE(WilsonCheah @ Aug 9 2012, 01:41 PM) wah... where got RM800++ so expansive?QUOTE(BartS @ Aug 9 2012, 01:48 PM) I don't have a db meter. So this has to be a test from your own ears. Rather than I badly explain about autofoam, here are some links ... nevermind.. i just wanna see u all go where test the engine... by pumping the speed up i will know the sound proofing working for my fender side and wheel arch side or not.» Click to show Spoiler - click again to hide... « |
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Aug 9 2012, 01:55 PM
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QUOTE(fulat @ Aug 9 2012, 01:53 PM) wah... where got RM800++ so expansive? u mentioned it the other day ma, no?nevermind.. i just wanna see u all go where test the engine... by pumping the speed up i will know the sound proofing working for my fender side and wheel arch side or not. wuhuhuhuhuh SA havent update me when can collect car. whuhuhuhuhu |
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Aug 9 2012, 01:56 PM
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QUOTE(WilsonCheah @ Aug 9 2012, 01:55 PM) u mentioned it the other day ma, no? white should have a lot la... if he dont update u. call him la... ask for what freebie from him?wuhuhuhuhuh SA havent update me when can collect car. whuhuhuhuhu u tell him... no car next week. u change SA... wahahhahaha This post has been edited by fulat: Aug 9 2012, 02:00 PM |
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Aug 9 2012, 02:10 PM
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QUOTE(fulat @ Aug 9 2012, 01:56 PM) white should have a lot la... if he dont update u. call him la... ask for what freebie from him? HAHA Ipoh no stock. -.- damn kanasai wan. u tell him... no car next week. u change SA... wahahhahaha my own fren . haha cant blame him, i stalk his company yard daily xD memang no white knight |
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Aug 9 2012, 02:19 PM
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Aug 9 2012, 02:36 PM
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jialat... here my SA anytime can give u car.. but no white.. ready stock have black, elegant brown and silver
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Aug 9 2012, 02:37 PM
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