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Post by yanuk on Jun 16, 2008 9:47:17 GMT 8
actually it's healthier to keep the engine bay warm so you don't waste too much energy warming up the engine again. Warming up the engine??? Think for cerato, the temp too high for sg weather ba. Most of the time when we warm up car, main reason is to have the engine oil very slightly warm up and ensuring its circulating the engine block? In sg, need to warm up to to gain "heat" jemjem jemjem I'm not particularly sure about the ceratos, but speaking for engines in general. They work best at their designed operating temperatures, though the coolant might indicate 70-80degC the engine is like around or over 100degC inside because the coolant is under pressure. To want the engine block to cool quickly when engine is off then needing it to heat up again when operating will stress a lot of joints and engine block itself, particularly the exhaust extractor.
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Post by jemjem on Jun 16, 2008 10:48:50 GMT 8
Warming up the engine??? Think for cerato, the temp too high for sg weather ba. Most of the time when we warm up car, main reason is to have the engine oil very slightly warm up and ensuring its circulating the engine block? In sg, need to warm up to to gain "heat" jemjem jemjem I'm not particularly sure about the ceratos, but speaking for engines in general. They work best at their designed operating temperatures, though the coolant might indicate 70-80degC the engine is like around or over 100degC inside because the coolant is under pressure. To want the engine block to cool quickly when engine is off then needing it to heat up again when operating will stress a lot of joints and engine block itself, particularly the exhaust extractor. icic... jemjem
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Post by jemjem on Jun 16, 2008 10:49:36 GMT 8
Hi all bros I have checked with ampex and this is their reply for CF bonnet: "Hi Do you think it is possible to get more than 10 persons at least for the bonnet. I can get the factory to customize a design for u guys. But I would require a deposit of 50% upon completion of GB and the 20% upon agreement of design the rest of the 30% upon collection. For my part, I will still get a pc of the OEM one to do a test fit for you guys. Kind Regards, Lawrence " I think that if we can get 10 persons, we can really customise a vented CF bonnet for cerato. looks promising for his reply. What do you all think? jemjem Just in case bros here miss this out.. jemjem
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Post by jemjem on Jun 17, 2008 11:45:01 GMT 8
Hi all bros here... Wan to discuss and agree on a design of the CF hood first..? What do you all think of the GTR hood? If this is the CF design for all, is it ok? Where are all the bros who were having interest? lmf, bro bronzz, physfool, sani, ceratov2m, yanuk, lucky13, Monsterdog jemjem
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Post by KK aKa Popcerato on Jun 17, 2008 12:06:00 GMT 8
M.I.A. ( Lunch Break )
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Post by psyfool7 on Jun 17, 2008 18:28:55 GMT 8
Hi all bros here... Wan to discuss and agree on a design of the CF hood first..? What do you all think of the GTR hood? If this is the CF design for all, is it ok? Where are all the bros who were having interest? lmf, bro bronzz, physfool, sani, ceratov2m, yanuk, lucky13, Monsterdog jemjem I personally quite like this GTR style hood..but cooling wise not so much as it juz via 2 small vents only..Definitely I'm interested, but $$ timing is another issue...
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Post by yanuk on Jun 17, 2008 19:32:00 GMT 8
Hi all bros here... Wan to discuss and agree on a design of the CF hood first..? What do you all think of the GTR hood? If this is the CF design for all, is it ok? Where are all the bros who were having interest? lmf, bro bronzz, physfool, sani, ceratov2m, yanuk, lucky13, Monsterdog jemjem erm no.. do count me out, i have not committed myself to buying a cerato yet.
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Post by yanuk on Jun 17, 2008 19:36:04 GMT 8
I personally quite like this GTR style hood..but cooling wise not so much as it juz via 2 small vents only..Definitely I'm interested, but $$ timing is another issue... May I know why do you want big vents to cool the engine while running? Sorry if I sound noob but it's very contrary to what I know of how engines operate.
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Post by jemjem on Jun 17, 2008 19:53:36 GMT 8
Hi all bros here... Wan to discuss and agree on a design of the CF hood first..? What do you all think of the GTR hood? If this is the CF design for all, is it ok? Where are all the bros who were having interest? lmf, bro bronzz, physfool, sani, ceratov2m, yanuk, lucky13, Monsterdog jemjem I personally quite like this GTR style hood..but cooling wise not so much as it juz via 2 small vents only..Definitely I'm interested, but $$ timing is another issue... Jus a discussion bro. Not committing... Timing wise I think if really can gather 10 bros here.. from setting a hood design, going down to talk to the workshop, committing, wait for China side to fabricate... I dun think it will be fast too... On top of that , the workshop will order a set to test fit if it will fit well at their own cost. All these i seriously think will at least that 3-4mths at least... jemjem jemjem
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Post by psyfool7 on Jun 17, 2008 19:54:08 GMT 8
I personally quite like this GTR style hood..but cooling wise not so much as it juz via 2 small vents only..Definitely I'm interested, but $$ timing is another issue... May I know why do you want big vents to cool the engine while running? Sorry if I sound noob but it's very contrary to what I know of how engines operate. I'm don't knw much too...but looking at it frm a very lay-man point of view, the openings on the bonnet shd provide better air circulation in the engine bay..when driving, cool air will be forced in and push out hot air..so, shd mean cooler engine bay temp..tis is frm a very lay-man view lah..not sure if technically, tis is not true...
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Post by jemjem on Jun 17, 2008 19:54:24 GMT 8
Hi all bros here... Wan to discuss and agree on a design of the CF hood first..? What do you all think of the GTR hood? If this is the CF design for all, is it ok? Where are all the bros who were having interest? lmf, bro bronzz, physfool, sani, ceratov2m, yanuk, lucky13, Monsterdog jemjem erm no.. do count me out, i have not committed myself to buying a cerato yet. Icic.. no worries... jemjem
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Post by yanuk on Jun 17, 2008 20:34:00 GMT 8
May I know why do you want big vents to cool the engine while running? Sorry if I sound noob but it's very contrary to what I know of how engines operate. I'm don't knw much too...but looking at it frm a very lay-man point of view, the openings on the bonnet shd provide better air circulation in the engine bay..when driving, cool air will be forced in and push out hot air..so, shd mean cooler engine bay temp..tis is frm a very lay-man view lah..not sure if technically, tis is not true... technically some parts need hot while others are better kept cool. eg: engine block need to be hot to run efficiently and smoothly. Exhaust headers (extractors) also need to be hot (that's why there is heat wraps for exhaust also) When you introduce cool outside air into the engine bay you will decrease the efficiency of the engine. Rexes and legacy has air scoops because they have radiators placed under the scoops for their turbo. Evos and Colt R have a different type of vents to allow the air from the front to vent out the top, the air flow will bypass the engine. Of course these are only the basics of engine operations, I know there are some street mods that are counter intuitive but actually works, I was just wondering if this was one of them.
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Post by psyfool7 on Jun 17, 2008 21:39:28 GMT 8
So tis is confusing..i knw certain things need to be kept hot, while others need to be kept cool...To me, i tot generally, cool is better..(but of coz not cold)..coz many pple say too hot can be detrimental to the car..tat's why pple install water temp, oil temp etc to monitor..Of course for TC cars, the scoops channel to the top mount intercoolers coZ they need the extra cooling..anyway, besides my so-called 'cooling theory', scoops/ vents look cool anyhow..keke..Well, at least learnt sumthing... OT abit...Speaking of intercoolers, juz now at Silent I see they selling dummy FMIC...one whole section of them..different sizes..looks kinda cute....
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Post by psyfool7 on Jun 17, 2008 21:42:02 GMT 8
erm no.. do count me out, i have not committed myself to buying a cerato yet. Icic.. no worries... jemjem Yah lor..I'm oso not committing..don't put my name in any GB list..juz tat I'm interested, but my timing may not suit GB timing, if there is any..
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Post by LMF on Jun 17, 2008 22:13:24 GMT 8
The GTR hood not to my liking leh, wish to have out stock hood in CF, wanna use CF sticker but wldnt look real according to psyfool, cant cubic print also n if possible will fade as time goes by... hmm...
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Post by yanuk on Jun 17, 2008 22:28:16 GMT 8
The GTR hood not to my liking leh, wish to have out stock hood in CF, wanna use CF sticker but wldnt look real according to psyfool, cant cubic print also n if possible will fade as time goes by... hmm... yeah.. CF stickers dun have the 3D feel. very easy to tell
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Post by psyfool7 on Jun 18, 2008 1:48:30 GMT 8
The GTR hood not to my liking leh, wish to have out stock hood in CF, wanna use CF sticker but wldnt look real according to psyfool, cant cubic print also n if possible will fade as time goes by... hmm... ..Even if real CF but the quality of the laquer not good will also have fading..especially parts exposed to sun or heat. Seen some CF parts hav such problems..
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Post by ceratov2m on Jun 18, 2008 5:21:00 GMT 8
Hi all bros here... Wan to discuss and agree on a design of the CF hood first..? What do you all think of the GTR hood? If this is the CF design for all, is it ok? Where are all the bros who were having interest? lmf, bro bronzz, physfool, sani, ceratov2m, yanuk, lucky13, Monsterdog jemjem Alrite,back frm my lunch break... I prefer inverted scoop mainly bcoz it could cut down on more weight on the bonnet+our local climate's weather is really hot when compared to other overseas' countries. I would prefer an inverted scoop something like on those Integras' which we might hv seen running around on local roads, dunno is it Varis or J'S Racing design...looks awesome to me at least! As for whether is it too cool for the engine to operate efficiently, I beg to differ as those K20As engine in the Integras are also N.A. in terms of when Varis or J'S racing designed it, if there are no known reported problems from owners whom had fitted the inverted scoop designed bonnet, my guess is we can trust. Speaking of China-made CF which I recently enquired frm a fren, was told tat a normal CF hood frm ther costs only about S$300++ which local retailers had large profit margins... ..dunno how true it is...might wanna try some China websites to check out the real costs online... My few cents worth!
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Post by psyfool7 on Jun 18, 2008 8:52:26 GMT 8
...If inverter scoop can be done, it wld be ...but the opening shd not be too big though..Integra/ DC5 inverter bonnet is frm Mugen i tink..Varis design is usually more complex a bit..but swee.... ....Not sure abt the quality of China made bonnets...
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Post by jemjem on Jun 18, 2008 9:06:44 GMT 8
Hi all bros here... Wan to discuss and agree on a design of the CF hood first..? What do you all think of the GTR hood? If this is the CF design for all, is it ok? Where are all the bros who were having interest? lmf, bro bronzz, physfool, sani, ceratov2m, yanuk, lucky13, Monsterdog jemjem Alrite,back frm my lunch break... I prefer inverted scoop mainly bcoz it could cut down on more weight on the bonnet+our local climate's weather is really hot when compared to other overseas' countries. I would prefer an inverted scoop something like on those Integras' which we might hv seen running around on local roads, dunno is it Varis or J'S Racing design...looks awesome to me at least! As for whether is it too cool for the engine to operate efficiently, I beg to differ as those K20As engine in the Integras are also N.A. in terms of when Varis or J'S racing designed it, if there are no known reported problems from owners whom had fitted the inverted scoop designed bonnet, my guess is we can trust. Speaking of China-made CF which I recently enquired frm a fren, was told tat a normal CF hood frm ther costs only about S$300++ which local retailers had large profit margins... ..dunno how true it is...might wanna try some China websites to check out the real costs online... My few cents worth! Hi all bros here... Wan to discuss and agree on a design of the CF hood first..? What do you all think of the GTR hood? If this is the CF design for all, is it ok? Where are all the bros who were having interest? lmf, bro bronzz, physfool, sani, ceratov2m, yanuk, lucky13, Monsterdog jemjem Alrite,back frm my lunch break... I prefer inverted scoop mainly bcoz it could cut down on more weight on the bonnet+our local climate's weather is really hot when compared to other overseas' countries. I would prefer an inverted scoop something like on those Integras' which we might hv seen running around on local roads, dunno is it Varis or J'S Racing design...looks awesome to me at least! As for whether is it too cool for the engine to operate efficiently, I beg to differ as those K20As engine in the Integras are also N.A. in terms of when Varis or J'S racing designed it, if there are no known reported problems from owners whom had fitted the inverted scoop designed bonnet, my guess is we can trust. Speaking of China-made CF which I recently enquired frm a fren, was told tat a normal CF hood frm ther costs only about S$300++ which local retailers had large profit margins... ..dunno how true it is...might wanna try some China websites to check out the real costs online... My few cents worth! Wa! bro if really $300+ with inverted scoop i am not sure if i can resist. hahahha... seriously if got this lobang must inform me. if i hav enough spare $ at tat time i will get it man.. Thanks! jemjem
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Post by jemjem on Jun 18, 2008 9:09:08 GMT 8
...If inverter scoop can be done, it wld be ...but the opening shd not be too big though..Integra/ DC5 inverter bonnet is frm Mugen i tink..Varis design is usually more complex a bit..but swee.... ....Not sure abt the quality of China made bonnets... Yo bro I think as long as the initial thickness of the laq is "good", can use duragloss detailing product to have a protection layer(sealant) on top and do it biweekly. i think this should maintain the look.. I am more worried of the quality of the carbon fiber material underneath used. heard some colour fades.. jemjem
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Post by LMF on Jun 18, 2008 9:23:02 GMT 8
The GTR hood not to my liking leh, wish to have out stock hood in CF, wanna use CF sticker but wldnt look real according to psyfool, cant cubic print also n if possible will fade as time goes by... hmm... ..Even if real CF but the quality of the laquer not good will also have fading..especially parts exposed to sun or heat. Seen some CF parts hav such problems.. my fren said if wanna replace bonnet must get those that has a 'skeleton' as more sturdy, that true? those without will be less durable?
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Post by yanuk on Jun 18, 2008 9:42:34 GMT 8
Yo bro I think as long as the initial thickness of the laq is "good", can use duragloss detailing product to have a protection layer(sealant) on top and do it biweekly. i think this should maintain the look.. I am more worried of the quality of the carbon fiber material underneath used. heard some colour fades.. jemjem I think the $300 ones are probably just fibreglass (maybe not even FG, just resin with cotton/poly cloth) with a final top layer of CF. Carbon fibre is very expensive, Just the CF cloth alone costs $50-60 for a small patch of 0.5m x 1m. That's only 1 piece, you need at least 6-8 layers that is vacuum with heat layered while applying resin in between. Polyester cloth on other hand is very very cheap and resin comes in KG tins of about <$20 each tin. A shortage of CF material last year due to A380 demand made the CF prices soar. 300 is cheap, but do remember to calculate shipping as well. My last painful experience is that shipping (on sg side) is a killer
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siqma
Gear THREE
juz sHuT-uP & DrIvE,DrIVe,dRiVe
Posts: 375
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Post by siqma on Jun 18, 2008 11:19:12 GMT 8
...so wats the total $$damage$$ like???
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Post by subzero on Jun 18, 2008 19:41:36 GMT 8
..Even if real CF but the quality of the laquer not good will also have fading..especially parts exposed to sun or heat. Seen some CF parts hav such problems.. my fren said if wanna replace bonnet must get those that has a 'skeleton' as more sturdy, that true? those without will be less durable? Yes, he's right.. Those without structure are more prone to breaking into pieces in an accident and cause more harm to the driver..
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