Rpms not dropping fast enough when speed shifting

[Higgs Boson]

For a smooth shift without having to slip the clutch.. Basically just a fast shift without the jerk in the car. I get when hard/racing shifting it'll jerk, but I'm talking about a smooth fast shift when not racing so its comfortable.

up to the driver not the car

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[Higgs Boson]

Let us both read OP's original post and see what he was asking.

(And, let's don't splitting hairs over what `speed shift' means. Instead, let's try to answer the OP's question/concern. Simply telling the OP to do power shifting may not be what he needs, even though you and many others have been power shifting with success.)

The OP clearly stated that he wanted to match the rpm for 1-2 shift. But the engine rpm does drop fast enough (rather, it hangs there for too long). Yes, one can take it slow and wait for the rpm to drop. But the OP also wants to shift fast (while matching the rpm). So the OP asked why/how, etc.

Yes, you can tell the OP that what he tries to accomplish is not possible in stock S550 due to factory dialed-in rev hang. You can also suggest the OP to power shift and forget smoothness.

But I would not call it driver error.

maybe what he means is driving the car fast but shifting slowly......

thats like wearing nikes to work and ferragamos to the gym.


the points have been made in this thread, if the op wants to listen or just keep the cycle going, its up to you guys. have fun.

btw, not once did i suggest he power shift.

 

[Joe 5.0]

I am tuned and I have the rev hang issue. I find myself holding down the clutch longer before releasing and going into the next gear, otherwise I get a loud thud and a huge jerk by the car. So frustrating! :frusty:

Because of my full exhaust, I can hear when the car is holding the revs.

Granted, I granny shift most of the time, lol.

 

[Horse]

maybe what he means is driving the car fast but shifting slowly......

thats like wearing nikes to work and ferragamos to the gym.


the points have been made in this thread, if the op wants to listen or just keep the cycle going, its up to you guys. have fun.

btw, not once did i suggest he power shift.

The OP means to shift fast while attempting to match the engine rpm to the next gear. Not about driving fast per se.

I went through the same experience/process, but eventually came to the conclusion that it is not possible to do that (shift fast and match the rpm) with a stock S550. So now, not ready to tune the car, I adjust myself to the car (either wait for the rpm to drop for smoothness, or forget smoothness and shift fast/hard).

As I mentioned earlier, a tune (at least the Unleashed Tuning by Torrie) will help the rev hang issue. But I am not ready to tune my car as of now.

 

[Horse]

Dud first off I would never ever chime in like you just did telling me how and why my thoughts should be said and where to go to read what he was asking. you have nothing at all to do with my conversation where it should go Mr. school teacher.

I read what was ask from the beginning not just happen to chime in where I decided to chime in on his quest for support. I'm attempting to give him an idea of how to remedy his rpm probable, hence the two shift methods. Or did you miss what I was trying to lead him with. I think so you missed it lol. I assumed someone with a stick would know what that means lol.

I think you are every ones talk host? right! Next time please miss me with your lectures on how I should type my responses to who ever I decide to respond to.

Sorry if the tone of that post made you uncomfortable. But wait, that post was not even directed to you!

 

[Horse]

I am tuned and I have the rev hang issue. I find myself holding down the clutch longer before releasing and going into the next gear, otherwise I get a loud thud and a huge jerk by the car. So frustrating! :frusty:

Because of my full exhaust, I can hear when the car is holding the revs.

Granted, I granny shift most of the time, lol.

Same here.

This is how I do it (trying to match rpm to the next gear up): after lifting the gas, don't step on the clutch right away; instead wait for a while until when the rpm is ready to drop; then step on the clutch and complete the rest of the shifting procedure fast. This way, the clutch is not pushed in for as long of a time (so possibly save the clutch a bit, just saying). Indeed, the aim here is smoothness (for those who care).

 

[Higgs Boson]

He said he was at WOT, so I am not sure this is a case of fast shifting at 3000 RPMs.....

Just going by what the OP is saying, he wants to speed-shift-rev-match-smoothly-while-WOT.

 

[SnoopisTDI]

I am tuned and I have the rev hang issue. I find myself holding down the clutch longer before releasing and going into the next gear, otherwise I get a loud thud and a huge jerk by the car. So frustrating! :frusty:

Because of my full exhaust, I can hear when the car is holding the revs.

Granted, I granny shift most of the time, lol.

You just have to let the clutch out semi-quickly, but pause right at the point it starts to grab. Pause just long enough for the clutch to pull the revs down, then continue on. Yes, you're slipping the clutch a little, but it's not like you've got your foot hammering the gas at the same time. It's a little smoother than just dropping the clutch, and faster than waiting two minutes (it seems that long!) for the revs to fall on their own.

 

[Horse]

He said he was at WOT, so I am not sure this is a case of fast shifting at 3000 RPMs.....

Just going by what the OP is saying, he wants to speed-shift-rev-match-smoothly-while-WOT.

I think he means speed-shift-rev-match-smoothly-after-WOT rather than speed-shift-rev-match-smoothly-while-keeping-WOT.

WOT, bring rpm to red line; then lift gas and try to shift fast while attempting to match the rpm to the next gear up. This is hard to do with stock S550 b/c of rev hang, hence the frustration and OP's post.

And, FWIW, this issue is known and can be addressed by a tune. See my earlier post
http://www.mustang6g.com/forums/showpost.php?p=1108767&postcount=5

 

[Higgs Boson]

I think you are trying to help for the most part. If you are at red line you never want to granny shift the transmission it will shear the gears off if he miss shift's and barley has it in gear plus the rpm's are staying at WOT way to long, not good for the engine to sustained long times between shifts hence power shifting insures the stick is fully in gear each time you pull and push the shifter cause of the intensity of the necessary speed needed to power shift Hence more force to shift the tranny I've said my say I'm moving on to another thread and topic. Good luck you'll get there I know you will bro.

:shrug::headbonk:

define granny shifting
punctuate

I have NO idea what you are saying or even attempting to say.

Again, there is no such thing as shifting fast and rev matching on an upshift. When you upshift the RPMs drop to a lower RPM (ie the next gear). To rev match you have to wait for the RPMs to drop which takes a long time and taking a long time by definition cannot be fast or speedy. Thus, the RPM drop is up to the driver releasing the clutch. There is an infinite amount of speeds and forces you can use to let the clutch out.

I still contend this thread makes zero sense and I am in the twilight zone.

 

[D.Brown]

LOL at pro-mod racer.

 

[Higgs Boson]

:shrug::clap2:addle::doh::hail: You need to bang your lost head you do not know what you are talking about not rev matching your talking to a pro-mod racer and you for sure don't have a clue so you should move on I can't be bothered to explain when your going to tell me there is no such thing as rev matching on an upshift. You are trying to keep the engine in it's power band. No-one said you were trying to match rpm with up-shifts. The point being said is the smoothest shifts without the weird noises he is hearing so when you short shift your not revving the engine out God where did you even think I was saying anything that asinine anyhow? Jeeze. That has to do with a close ratio and or wide ratio transmission allows you to shift just before the engine stops pulling like gang busters and according to your rear end gears will determine weather you need a wide ratio transmission or a close ratio trans. less teeth on the rear end gear will indicate the need for a close ration tranny. And wide ratio tranny for more gear in the rear end will work best again this all has to do with rev matching when you shift the gear to the next taller gear you want the rpm's to be in the power band as soon as they drop into the next gear. I am out of here for sure this time. Take your confused what ever and tell someone else there is no such thing as up shift rpm where in the hel* did you think I was saying such a ridiculous statement to the op.:tsk::gossip::rant::eyebulge::shocked::thumbdown::help::bump::hitcomputer::bolt::censored::dnftt::mullet::ban::rules::readthethread:

thank you for the well thought out post. now i understand how intelligent you are. do you go by paul walker or vin diesel?:lol:

do you granny shift and double clutch?

post a video of your pro mod car, that is so awesome, wow pro-mod!!!! what kind of clutch do you use in your pro mod car? how many gears does it have? wow, what kind of shifter is it? does it have a cold air intake?

12 posts....yeah, I think we know who the troll is. did you actually make it past the 3rd grade? you do a great job matching the letter on the keyboard to the letters on the screen. congrats.

 

[Horse]

haha, what happened? lol

Seriously, I understand that some/many Mustang drivers like to power shift; and I am fine with that, as that is definitely a fun way to enjoy the Mustang.

But what I have trouble figuring out is that some don't even attempt to understand the (possible) need to rev match. I am not asking everyone to rev match when driving their Mustang, but please at least understand that there are others who prefer smoothness to performance. For those, part of the fun of driving a manual car is to make the gear changes smooth (by perfectly match the rpm to the next gear) and fast.

Rev matching (when shifting up) is not a cardinal sin in Mustang last time I checked.

 

[Higgs Boson]

haha, what happened? lol

Seriously, I understand that some/many Mustang drivers like to power shift; and I am fine with that, as that is definitely a fun way to enjoy the Mustang.

But what I have trouble figuring out is that some don't even attempt to understand the (possible) need to rev match. I am not asking everyone to rev match when driving their Mustang, but please at least understand that there are others who prefer smoothness to performance. For those, part of the fun of driving a manual car is to make the gear changes smooth (by perfectly match the rpm to the next gear) and fast.

Rev matching (when shifting up) is not a cardinal sin in Mustang last time I checked.

Rev matching means putting the RPMs in the correct position before letting out the clutch.

Can you tell me how you force the RPMs down, say from 7000 to 4000 RPMs without simply waiting?

rev matching is when you blip the throttle on a downshift to bring the RPMs UP so that there is a smooth transition to the next lower gear.

When you are accelerating, there is no way to rev match without waiting, which means gas off, clutch in, RPMs falling......waiting.....now let the clutch out and apply gas. How is that speed shifting in any sense of the term (whether a power shift or not)?

I am not saying that you are supposed to pop the clutch out on every shift, that would just be weird. What I am saying is that every shift requires some throttle/clutch relationship modulation to switch smoothly, that is not rev matching, that is normal shifting that everyone does every time they shift......hence, driver error.

If clutch engagement is up high in the pedal throw then I can definitely see someone not getting completely off the gas by the time the clutch disconnects unless they adjust a little bit. Some cars have a high engagement point and it can feel weird if you just got out of a car with a low engagement point (and vice versa). Of course, this should take about 5 minutes to completely adapt, but whatever.

Also, coming from a cable operated clutch to a hydraulic clutch is going to feel quite a bit different.

 

[Todd15Fastback]

:shrug::clap2:addle::doh::hail: You need to bang your lost head you do not know what you are talking about not rev matching your talking to a pro-mod racer and you for sure don't have a clue so you should move on I can't be bothered to explain when your going to tell me there is no such thing as rev matching on an upshift. You are trying to keep the engine in it's power band. No-one said you were trying to match rpm with up-shifts. The point being said is the smoothest shifts without the weird noises he is hearing so when you short shift your not revving the engine out God where did you even think I was saying anything that asinine anyhow? Jeeze. That has to do with a close ratio and or wide ratio transmission allows you to shift just before the engine stops pulling like gang busters and according to your rear end gears will determine weather you need a wide ratio transmission or a close ratio trans. less teeth on the rear end gear will indicate the need for a close ration tranny. And wide ratio tranny for more gear in the rear end will work best again this all has to do with rev matching when you shift the gear to the next taller gear you want the rpm's to be in the power band as soon as they drop into the next gear. I am out of here for sure this time. Take your confused what ever and tell someone else there is no such thing as up shift rpm where in the hel* did you think I was saying such a ridiculous statement to the op.:tsk::gossip::rant::eyebulge::shocked::thumbdown::help::bump::hitcomputer::bolt::censored::dnftt::mullet::ban::rules::readthethread:

Are you an Auburn fan?

:lol::lol::lol::lol:

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