Engine RPM advice??

Hey guys, was wondering if any seniors here can help...

Heard that maintaining 3-4k rpm then chang gear will loosen the engine, however others say DO NOT go over 3k rpm so that engine will run in properly...

abv all, is it tat unhealthy to run e engine 3-4krpm?? believe engine is not as fragile as it seems to b...
any advice from pros here???

thanks in advance....

Forte Manual react abit different from Forte Auto..

the first 2 gear for Manual is abit lack of response which u will slightly drag more and change gear above 3krpm but its ok for gear 3/4 and that is causes by the ECU stock tunning fault..

maintaining constantly at 80km/hr is advisable for the 1st 1000 but occasionally i will increase to 90km/hr for overtaking and remain back to 80km/hr.. after i send my car for 1k servicing.. my margin of run-in scale increases to 100km/hr with 3krpm

for manual u definately drag abit more for the first 2 gear which is ard 3.5krpm or lesser..

as long u are within this window then u can considered as proper run-in..

for Forte Manual folks here.. maybe u can advise him more on the proper run in for manual..

ok... tks bro... hmmmm... waitin to hear more from forte manuals.. hhha///

Dun think have solid answer but dun rev above 3k shld be ok most of the time to serve my needs.

So far after upgrading to 17" for me, at junction i rev for until 2.5k already quite good already to move and usually first few cars ahead. Also for 100km/h on expressways, my xiao bai also did not hit above 3krpm also. Overtaking at 110, might just touch 3k rpm. So i dun think i really need to hit to even 4k rpm anytime in SG.

aural wrote:Dun think have solid answer but dun rev above 3k shld be ok most of the time to serve my needs.

So far after upgrading to 17" for me, at junction i rev for until 2.5k already quite good already to move and usually first few cars ahead. Also for 100km/h on expressways, my xiao bai also did not hit above 3krpm also. Overtaking at 110, might just touch 3k rpm. So i dun think i really need to hit to even 4k rpm anytime in SG.

u are driving a 2L or 1.6?

my 1.6L 100kmh is on 3 or slightly above 3 le..

eh i not very sure..

i have been driving AT for past 3 years..always RPM 3k during pick up, until now nothing wrong touch wood, but it's a toyota.

During run in try not to high rev (>3.5k), but after that it's fine..but normal driving dont' need la. just occasionaly whack is good for engine, can clear carbon. =)

cpt_zr wrote:

aural wrote:Dun think have solid answer but dun rev above 3k shld be ok most of the time to serve my needs.

So far after upgrading to 17" for me, at junction i rev for until 2.5k already quite good already to move and usually first few cars ahead. Also for 100km/h on expressways, my xiao bai also did not hit above 3krpm also. Overtaking at 110, might just touch 3k rpm. So i dun think i really need to hit to even 4k rpm anytime in SG.

u are driving a 2L or 1.6?

my 1.6L 100kmh is on 3 or slightly above 3 le..

1.6L manual. but at 100km/h is just below 3k. If above 100km/h will be slightly on 3k or above.

omg2doors wrote:eh i not very sure..

i have been driving AT for past 3 years..always RPM 3k during pick up, until now nothing wrong touch wood, but it's a toyota.

During run in try not to high rev (>3.5k), but after that it's fine..but normal driving dont' need la. just occasionaly whack is good for engine, can clear carbon. =)

3k rpm is ok 3.5k also ok. It depends on individual driving styles. Most people on road dun rev until 4k for pick up. Those that really fly from junctions usually are sports car or dunno why also.

yup rpm at 3k is good enough for 1.6M SX
kinda fast plus just a little stress on the piston ^^

120km/h is only near 3.5 rpm and anyway its on high gear so the stress its taking is not consider as high compare to gear 1-3

giancarlo wrote:yup rpm at 3k is good enough for 1.6M SX
kinda fast plus just a little stress on the piston ^^

120km/h is only near 3.5 rpm and anyway its on high gear so the stress its taking is not consider as high compare to gear 1-3

high gear, low gear no effect on pistons.

Pistons are for combustion.

Engine is designed for up to redline. Just dun exceed redline can liaos. If always rev a lot, the only thing is engine mounting sometimes gets loosen, cabin will start to vibrate a little.

ok i've asked my friend who is an engineer and he's told me that the reason why you must run in the engine is because of mechanical manufacturing

during manufacture the parts will have minute differences thus they will not be able to gel perfectly
the purpose of driving at low rpm is to wear out these differences

on high rpm the forces between the moving parts will be excessive and will result in minute microscope chipping which will affect long term tolerance, power and fuel consumption

this is also the reason why must change engine oil frequently during run in...
thus going by his explanation, you should not purposely change gear at 3-4krpm instead you should try to maintain at as low rpm as possible

but to be honest, for me i won't really care too much because i plan to change to a luxury car at the soonest available opportunity... the minute my salary hits over 5k i'll change already... but that won't happen so soon

bro, dun tink 5K can comfortably afford a luxury car lei.

haha i aiming nissan teana or honda accord nia
not mercedes ;p

plus i driving opc so lagi cheaper...

unlimitedz wrote:Hey guys, was wondering if any seniors here can help...

Heard that maintaining 3-4k rpm then chang gear will loosen the engine, however others say DO NOT go over 3k rpm so that engine will run in properly...

abv all, is it tat unhealthy to run e engine 3-4krpm?? believe engine is not as fragile as it seems to b...
any advice from pros here???

thanks in advance....

bro, dun worry. revving the engine up to 4k occasionally won't cause it to explode la. haha...

in fact, even the owner's manual oso stated that it's advisable not to keep driving at the same speed and to keep varying the engine speeds and to keep the revs up to 4k during run-in. that's to help shed the micro metal particles inside the engine to enable the car to perform better in the long run. that's why 1k & 5k gotta go buang the mineral oil and change filter to 'cleanse' the engine of the metal particles.

redkoup wrote:bro, dun tink 5K can comfortably afford a luxury car lei.

I wholeheartedly agree.

Unless you dun have any other commitments and big fat dough for downpayment.

my rite foot jst doesnt listen to me man.... lolx... past few days min 3.5 - 4k rpm then chagne gear... LOL....

redkoup wrote:

unlimitedz wrote:Hey guys, was wondering if any seniors here can help...

Heard that maintaining 3-4k rpm then chang gear will loosen the engine, however others say DO NOT go over 3k rpm so that engine will run in properly...

abv all, is it tat unhealthy to run e engine 3-4krpm?? believe engine is not as fragile as it seems to b...
any advice from pros here???

thanks in advance....

bro, dun worry. revving the engine up to 4k occasionally won't cause it to explode la. haha...

in fact, even the owner's manual oso stated that it's advisable not to keep driving at the same speed and to keep varying the engine speeds and to keep the revs up to 4k during run-in. that's to help shed the micro metal particles inside the engine to enable the car to perform better in the long run. that's why 1k & 5k gotta go buang the mineral oil and change filter to 'cleanse' the engine of the metal particles.

Back when I got my DC5R, my mechanic told me not to be afraid to give
it abit of rev (not saying you have to keep the needle bouncing off
the redline )

I think the main thing is to keep varying the revs. The first 1000Kms is the most important.

Also shift down accordingly and let engine braking do its job too. All this is to ensure the piston ring seals bed in properly.

unlimitedz wrote:my rite foot jst doesnt listen to me man.... lolx... past few days min 3.5 - 4k rpm then chagne gear... LOL....

redkoup wrote:

unlimitedz wrote:Hey guys, was wondering if any seniors here can help...

Heard that maintaining 3-4k rpm then chang gear will loosen the engine, however others say DO NOT go over 3k rpm so that engine will run in properly...

abv all, is it tat unhealthy to run e engine 3-4krpm?? believe engine is not as fragile as it seems to b...
any advice from pros here???

thanks in advance....

bro, dun worry. revving the engine up to 4k occasionally won't cause it to explode la. haha...

in fact, even the owner's manual oso stated that it's advisable not to keep driving at the same speed and to keep varying the engine speeds and to keep the revs up to 4k during run-in. that's to help shed the micro metal particles inside the engine to enable the car to perform better in the long run. that's why 1k & 5k gotta go buang the mineral oil and change filter to 'cleanse' the engine of the metal particles.

time to put a brick below the accelerator!

redkoup wrote:

unlimitedz wrote:Hey guys, was wondering if any seniors here can help...

Heard that maintaining 3-4k rpm then chang gear will loosen the engine, however others say DO NOT go over 3k rpm so that engine will run in properly...

abv all, is it tat unhealthy to run e engine 3-4krpm?? believe engine is not as fragile as it seems to b...
any advice from pros here???

thanks in advance....

bro, dun worry. revving the engine up to 4k occasionally won't cause it to explode la. haha...

in fact, even the owner's manual oso stated that it's advisable not to keep driving at the same speed and to keep varying the engine speeds and to keep the revs up to 4k during run-in. that's to help shed the micro metal particles inside the engine to enable the car to perform better in the long run. that's why 1k & 5k gotta go buang the mineral oil and change filter to 'cleanse' the engine of the metal particles.

agree. my previous ride, i rev until 6k also no prob.. anyway i read from somewhere, its gd to rev to higher rpms at times to clear and burn off the carbon residue that has built up inside the engine.

run in period for me, anything between 2 to 4k.. don't stick to just 1 speed also there isnt a recommended limit during the run-in period (if i nv rmb wrongly)

and has only the recommended rpm.

once u reach about 100km is about 3k rpm liao.. 120km is about 3.5 like tht.. so no problem one.

that was how i did my run-in.. between 2.5k to 3.5k rpm.