newb @ shifting. need help!
06-12-2008, 11:39 PM
#21
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Hey, man, you need to rev match much better than you are (I know exactly the problem and noise you're talking about; I experienced the same thing the first time I got a manual car and went through a clutch to prove it). The first step is to find out exactly where your RPM needs to be for each gear at each speed. I'm not saying you need to rev it to EXACTLY that RPM when downshifting, but putting it in the general vicinity will prevent the problem you are talking about (which will fry your clutch quicker than just about anything if you keep it up, not to mention damaging other parts).
The key is to eventually get the throttle blip quick enough and close enough so that it becomes one motion. You eventually don't want to have to "hold" the RPMs up while you select the gear and then release the clutch. You want to push the clutch in, immediately blipping the throttle while you're selecting the lower gear, and then releasing the clutch before the RPM comes down at all. It takes some practice but once you get it down, it will make for very smooth downshifts and less parts breaking and wearing down.
Start off by going out and just holding each gear for longer on a regular acceleration to find out what RPM your car is at at certain speeds in each gear. For example, maybe at 60mph, 3rd gear puts you around 4300RPM (not actually numbers, just an example). Take note of that and the next time you're cruising at 60 and want to downshift to third for a run, clutch in, blip the throttle up to somewhere in the 4000-4500 range while you're putting it into third, then release the clutch quickly (DON'T DUMP IT, but don't ride it either) and you'll be good to go.
The key is to eventually get the throttle blip quick enough and close enough so that it becomes one motion. You eventually don't want to have to "hold" the RPMs up while you select the gear and then release the clutch. You want to push the clutch in, immediately blipping the throttle while you're selecting the lower gear, and then releasing the clutch before the RPM comes down at all. It takes some practice but once you get it down, it will make for very smooth downshifts and less parts breaking and wearing down.
Start off by going out and just holding each gear for longer on a regular acceleration to find out what RPM your car is at at certain speeds in each gear. For example, maybe at 60mph, 3rd gear puts you around 4300RPM (not actually numbers, just an example). Take note of that and the next time you're cruising at 60 and want to downshift to third for a run, clutch in, blip the throttle up to somewhere in the 4000-4500 range while you're putting it into third, then release the clutch quickly (DON'T DUMP IT, but don't ride it either) and you'll be good to go.
06-13-2008, 04:18 PM
#23
Hey, man, you need to rev match much better than you are (I know exactly the problem and noise you're talking about; I experienced the same thing the first time I got a manual car and went through a clutch to prove it). The first step is to find out exactly where your RPM needs to be for each gear at each speed. I'm not saying you need to rev it to EXACTLY that RPM when downshifting, but putting it in the general vicinity will prevent the problem you are talking about (which will fry your clutch quicker than just about anything if you keep it up, not to mention damaging other parts).
The key is to eventually get the throttle blip quick enough and close enough so that it becomes one motion. You eventually don't want to have to "hold" the RPMs up while you select the gear and then release the clutch. You want to push the clutch in, immediately blipping the throttle while you're selecting the lower gear, and then releasing the clutch before the RPM comes down at all. It takes some practice but once you get it down, it will make for very smooth downshifts and less parts breaking and wearing down.
Start off by going out and just holding each gear for longer on a regular acceleration to find out what RPM your car is at at certain speeds in each gear. For example, maybe at 60mph, 3rd gear puts you around 4300RPM (not actually numbers, just an example). Take note of that and the next time you're cruising at 60 and want to downshift to third for a run, clutch in, blip the throttle up to somewhere in the 4000-4500 range while you're putting it into third, then release the clutch quickly (DON'T DUMP IT, but don't ride it either) and you'll be good to go.
The key is to eventually get the throttle blip quick enough and close enough so that it becomes one motion. You eventually don't want to have to "hold" the RPMs up while you select the gear and then release the clutch. You want to push the clutch in, immediately blipping the throttle while you're selecting the lower gear, and then releasing the clutch before the RPM comes down at all. It takes some practice but once you get it down, it will make for very smooth downshifts and less parts breaking and wearing down.
Start off by going out and just holding each gear for longer on a regular acceleration to find out what RPM your car is at at certain speeds in each gear. For example, maybe at 60mph, 3rd gear puts you around 4300RPM (not actually numbers, just an example). Take note of that and the next time you're cruising at 60 and want to downshift to third for a run, clutch in, blip the throttle up to somewhere in the 4000-4500 range while you're putting it into third, then release the clutch quickly (DON'T DUMP IT, but don't ride it either) and you'll be good to go.
Seems like the op is just letting go of the clutch after giving it some gas, causing his car to jerk around.
06-13-2008, 06:15 PM
#25
My opinion is don't live by rules of thumb, generally they compromise fun...and why drive a T56 LS1 car if it isn't for fun??? (and mpg
), there's a LOT of people out on the highway who can't downshift to save their lives (just ask the guy in the ZO6 that I smoked like 8 times on I-84 in CT a couple weeks ago). Find someone who can, and go for a ride in their car and watch their feet carefully. That ZO6 DEFINITELY had the power to beat me, but that ZO6's driver DEFINITELY had no clue how to get power out of his car if he wasn't running it from a stop.
06-13-2008, 07:19 PM
#26
Oh and the bang noise...generally when you don't bring the tach up high enough, and dump the clutch hard anyways, the axle launches itself off the ground and then slams back down...thats where the bang comes from.
Watch what the tach does when you let the clutch pedal out...if it snaps upward, you didn't give it enough gas, if it snaps downward, too much gas...
Watch what the tach does when you let the clutch pedal out...if it snaps upward, you didn't give it enough gas, if it snaps downward, too much gas...
06-13-2008, 09:52 PM
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Oh and the bang noise...generally when you don't bring the tach up high enough, and dump the clutch hard anyways, the axle launches itself off the ground and then slams back down...thats where the bang comes from.
Watch what the tach does when you let the clutch pedal out...if it snaps upward, you didn't give it enough gas, if it snaps downward, too much gas...
Watch what the tach does when you let the clutch pedal out...if it snaps upward, you didn't give it enough gas, if it snaps downward, too much gas...
06-14-2008, 09:47 AM
#28
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Engine rpm is slow and trans speed is high = rear wheels jumping due to a braking effect. The wheels are slowing down to match the low engine speed and they meet somewhere in the middle. Think of engine braking to an extreme. And if your not racing just doing it to get into the throttle don't just dump the clutch like said earlier let it out at a good pace gives the flywheel and clutch more time to match speed then slaming them together and forcing it in seconds. I'd say if you trying to learn over compensate a LITTLE more RPM. Better a cooked clutch then a broken rear ect. and you get to see where the RPM drops to. IMO it makes it easier to learn because you don't slow the car with the low RPM and it's not like a little too much RPM is gonna act like a turbo and make you rocket off.
06-14-2008, 01:09 PM
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Just to practice work your way down to the gear you want one at a time , and give it a good rev right before you let the clutch out. And as far as shifting fast its gonna take time to learn lol. My favorite speed when i wanna do a pull is go from about 60mph in 2nd gear thats about 5k or so i think and it pulls hard!!!
06-16-2008, 06:07 PM
#33
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sup guys, i havnt gotten a chance to drive it. was gonna sunday but the weather was a wash out. having two jobs wont let me play till friday. im pumped too, getting the exhaust fixed friday as well so im going to have to open it up to hear the new sound ( LT's + ORY+ flowmaster = 
). i think she will sound sweet. ill def let yall know and hopfully i dont brake anything lol. naw im gonna take it easy and do what you guys said. seriously, thanks for all the help. i dont have many peiple to show me how to do this. my buddy has an STi but hes no good at shifting that either and thats kinda an art.
). i think she will sound sweet. ill def let yall know and hopfully i dont brake anything lol. naw im gonna take it easy and do what you guys said. seriously, thanks for all the help. i dont have many peiple to show me how to do this. my buddy has an STi but hes no good at shifting that either and thats kinda an art. 
06-17-2008, 07:59 AM
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06-19-2008, 08:02 PM
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hey guys, took the car out today to put some gas in it. i had a successful down shift from 5th to 3rd at 60mph. pretty friggin proud of my self. didnt feel like it had much pull to it and to be honest i didnt watch the tach. my girl friend sitting in the pass seat seemed to think so, as she was screaming and holding onto the new fish we just picked up from the pet store for dear life (friggin 80 dollar fish 
). dunno, i didnt realy get pinned in the seat. maybe cuz im driving? anyways, i did what you guys said to do and took 2nd gear up to about 5 grand or so to see where i was at speed wise. not sure if i did it right though. i just babied it up to speed and then checked where i was at (in 2nd). at alittle over 5 grand i was at about 55. sound about right for 3.23's?so if im at 50-60 i should be shifting to 3rd then?
all in all the down shift i made was pretty smooth. slow but smooth. im fixing the exhaust tomorrow (thank friggin god) and going to start saving up for a tune. tomorrow after the exhaust is fixed im gonna try somemore down shifts and check my gear speeds + rpms. thanks all for the help you have given!!
corey
). dunno, i didnt realy get pinned in the seat. maybe cuz im driving? anyways, i did what you guys said to do and took 2nd gear up to about 5 grand or so to see where i was at speed wise. not sure if i did it right though. i just babied it up to speed and then checked where i was at (in 2nd). at alittle over 5 grand i was at about 55. sound about right for 3.23's?so if im at 50-60 i should be shifting to 3rd then?all in all the down shift i made was pretty smooth. slow but smooth. im fixing the exhaust tomorrow (thank friggin god) and going to start saving up for a tune. tomorrow after the exhaust is fixed im gonna try somemore down shifts and check my gear speeds + rpms. thanks all for the help you have given!!
corey
Last edited by Omec; 06-19-2008 at 08:57 PM.
06-19-2008, 09:24 PM
#38
my dad taught me how to blip the rev while clutched in on a dirtbike, i took the same idea to a car. same **** just feet instead of hands. that way when you release the clutch the car remains the same speed almost as if you never did anything.
06-19-2008, 09:30 PM
#39
