Rev matching in 6mt
03-22-2008 | 11:51 PM
#16
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From: t.dot.O
slightly off topic, but i seem to have trouble shifting from 1st to 2nd. whenever i push the cluth in, it makes a clinky rachety noise. is this because im shifting too early... or shifting too late ? i mean im only going about 25 km/h when i upshift from 1st to 2nd, and my RPMs are only about 1500.
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i notice that if i clutch in softly / slower it doesnt make that noise, is is bad to cluth in (just pushing the cluth in) hard and fast ?
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i notice that if i clutch in softly / slower it doesnt make that noise, is is bad to cluth in (just pushing the cluth in) hard and fast ?
03-23-2008 | 12:09 AM
#18
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From: t.dot.O
so what would you say the speed i should upshift at ? ie 15mph ? does anyone even upshift at that speed ?
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but the thing is that mph doesnt matter because you can accelerate sloowly and reach 15mph while your engine is doing 1500 RPM.
. the other situtation would be you can accelerate quick and rev it to 3000 RPM and it hits 15 mph instantly.
03-23-2008 | 12:49 AM
#20
vince i think im hearing the same noise as you, but i would have liked you to start your own thread, THREAD JACKER..but its more of a like an noise as if u can hear your clutch like open when pushing down correct? i hear it sometimes not all the time i think i hear it when im going really slow and shifting...
back to topic.. wouldent letting off the throttle loose power when shifting?
back to topic.. wouldent letting off the throttle loose power when shifting?
03-23-2008 | 11:56 AM
#22
so letting off the throttle is a lose of power if you dont shift perfect..
and "power shifting" or shifting while flooring your car can cause damage to clutch..
which is overall faster..
any word on the downshifting rpms.
and "power shifting" or shifting while flooring your car can cause damage to clutch..
which is overall faster..
any word on the downshifting rpms.
03-23-2008 | 01:48 PM
#23
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The 1st to 2nd and 2nd to 3rd always seem to be tricky trying to get a smooth transition through. It's not a problem when accelerating or when your by yourself, but when you have other ppl in the car, and you can see their head whiplashing from the corner of your eye, thats when I feel like laughing at my inability to get a real smooth transition in. I've read the Infiniti manual on where to shift and what speeds / rpms, but it just doesnt pan out that way... any advice?
03-23-2008 | 02:30 PM
#24
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For down shifting just try to understand what gear is related to rpms and mph. that is the first and biggest thing to do.
mainly for down shifting you are either cruising and want to pass up or catch up to someone. Or you are racing into a turn and need to shift into a lower gear so you can be in the correct gear for getting out of a curve.
if you are talking about the turn/curve then you will need to learn how to blimp the throttle and double clutch. Take your time to learn that later because it was already explained in the previous posts.
03-24-2008 | 12:26 AM
#25
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Ok, so the scenario you mentioned is if someone sneaks up upon you. You are on the highway going 70mph. Rpms are already at 2900. If you really want to get the best performance you will need to shift into 3rd gear. to really know what gear you want to select you need to know approximately what rpm what gear will be correlated to your speed.
The best way to understand this is drive your car in 3rd gear at 70mph. It will be screaming but just give your self an idea of what rpm to aim for. like in some of the previous post it will take a while to understand and know what gear be at what rpm. Heel to toe does not apply to this scenario.
Here we go. Press in the clutch to get out of 6th gear. While in neutral release the clutch and rev up to that desired rpm and then press in the clutch to the desired gear.
Our cars do have triple coned syncros so it gives you a lot of lea way for trial and error. Just slightly push the stick into the gear for about half a sec and then push it in. Release the clutch and smash the gas to catch up to that f***er. FYI 3rd gear tops out at 99mph.
The best way to understand this is drive your car in 3rd gear at 70mph. It will be screaming but just give your self an idea of what rpm to aim for. like in some of the previous post it will take a while to understand and know what gear be at what rpm. Heel to toe does not apply to this scenario.
Here we go. Press in the clutch to get out of 6th gear. While in neutral release the clutch and rev up to that desired rpm and then press in the clutch to the desired gear.
Our cars do have triple coned syncros so it gives you a lot of lea way for trial and error. Just slightly push the stick into the gear for about half a sec and then push it in. Release the clutch and smash the gas to catch up to that f***er. FYI 3rd gear tops out at 99mph.
my question is, say if I was to downshift from 3rd to 1st or w/e, and I was over the top speed for 1st...what would happen?
03-24-2008 | 12:40 AM
#26
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as a general rule, never shift into 1st if ur doing above 15mph. i dont downshift into first if im doing anything above 5mph. if the wheels are spinning, the lowest i'll downshift into is 2nd.
if u downshift improperly, u will over rev the motor. potentially screwing up the timing, or even blowing the motor from over revving.
vinny, if u want i can show u how to downshift properly, and tell u where ur technique is off. i live in queens.
if u downshift improperly, u will over rev the motor. potentially screwing up the timing, or even blowing the motor from over revving.
vinny, if u want i can show u how to downshift properly, and tell u where ur technique is off. i live in queens.
03-24-2008 | 12:43 AM
#27
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i used to pretty much this process with my 5AT sedan when in tiptronic. if you take a note to the top speed for each gear, you should be fine. I know in 5AT topping 3rd is about 94mph(as long as every gear before was also topped).
my question is, say if I was to downshift from 3rd to 1st or w/e, and I was over the top speed for 1st...what would happen?
my question is, say if I was to downshift from 3rd to 1st or w/e, and I was over the top speed for 1st...what would happen?
The car won't let you shift into a gear that is not allowed. So you don't have to worry about getting into a gear that will not operate at that engine speed.
03-24-2008 | 12:47 AM
#29
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oh yea, i forgot to mention that many manual trans ''lock out'' first gear after the car is rolling so that u cant downshift into first. you have ot push real hard to get into first or it wont even let u go into first above like 10mph.
how many miles u got on ur car now? ive had mine for 1.5 months now and dont even have 500 miles on it...stupid city drivin
how many miles u got on ur car now? ive had mine for 1.5 months now and dont even have 500 miles on it...stupid city drivin