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Rev matching in 6mt

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Old 03-25-2008 | 01:51 PM
  #46  
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From: SoFlo
Originally Posted by vinnys coupe
wow, i didnt even think tha was possible.. can you make up an example when using that.. like around what rpm did u drop into 2. like 2k? adn then it jumped to around 5k?
i would use it coming from a high speed into a tight turn. Clutch heel toe raise the rpms to around 6500 and go
Old 03-25-2008 | 08:35 PM
  #47  
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i take it most of you guys that don't rev match haven't been driving stick very long. its pretty simple: clutch in, bring the revs up to where they should be in the gear you are going to, put it in gear, and slip the clutch out...

i've been doing it so long in my m3 that i don't even get any jerkiness between shifts now. it just takes ALOT of practice to get it right from car to car. you gotta be able to jab the throttle once with the appropriate pressure and bring to the right correct rpm.

heel-toeing is a different story and the only way to get it working well is if you are really hammering down some twisty roads. basically it lets you brake and switch gears in one motion without upsetting the cars balance.
Old 03-26-2008 | 01:31 AM
  #48  
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yeah i dnt need heel toeing lol, just looking to learn my rpms so i can downshift with out jerking n like droping down 2 gears or w.e
Old 04-08-2008 | 05:38 PM
  #49  
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Vinny, i feel bad for your car...
Old 04-08-2008 | 06:54 PM
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From: t.dot.O
hmm. could it be why i cant drop to 2nd gear when approaching a right turn (im approaching at about 40 mph / 60 km/h). i think they car wont let me drop to 2nd because the wheel speed is too great for the engine to handle at one. so would rev matching solve this ?
Old 04-08-2008 | 07:16 PM
  #51  
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Originally Posted by vINCe_Inc
hmm. could it be why i cant drop to 2nd gear when approaching a right turn (im approaching at about 40 mph / 60 km/h). i think they car wont let me drop to 2nd because the wheel speed is too great for the engine to handle at one. so would rev matching solve this ?
at 40 mph i think downshifting to 3rd should be aggressive enough man...i mean im also a newbie but in my experience i downshift to 3rd if im turning above 30MPH. any speed lower than that should prob be downshifted to 2nd.

now this is spirited street driving...to maximize power and wheelspin (lol) on teh track and have fun you could prob pull off some high revving 2nd gear downshifts at higher speeds...ud be shifting to 3rd righttt away but if ur goin for the best track times it could make the difference....

Last edited by DetroitG37Joe; 04-08-2008 at 07:21 PM.
Old 04-08-2008 | 07:20 PM
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kinda cute coincidence that vinnys coupe and VinCe InC are both "vince's" new to M/Ts!!!
Old 04-08-2008 | 07:28 PM
  #53  
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I had a question: Is there a big difference between a G35 coupe and G37 as far as the clutch goes?
Old 04-08-2008 | 07:42 PM
  #54  
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From: t.dot.O
Originally Posted by DetroitG37Joe
kinda cute coincidence that vinnys coupe and VinCe InC are both "vince's" new to M/Ts!!!
.
lol. there are a few vince's around..
.
anyways. do u guys turn right at 2nd gear usually, ??? i find myself making right turns normally in 3rd gear, and it seems to be the most 'natural' gear to me.
Old 04-09-2008 | 03:53 PM
  #55  
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what does the gear you are in have to do with turning in a particular direction?
Old 04-09-2008 | 06:26 PM
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depends on how your driving... you can easily make a right in third gear and get to the speed limit soon enough but i find myself normally downshifting to second
Old 04-09-2008 | 06:27 PM
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he means making a right at an intersection mal_tx
Old 04-09-2008 | 08:06 PM
  #58  
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From: t.dot.O
see my problem is that i feel the shifter wont budget to 2nd, its like its locked. so i was wonder if the fix for it would be to bring the revs up before shifting.
Old 04-09-2008 | 08:42 PM
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Originally Posted by vINCe_Inc
see my problem is that i feel the shifter wont budget to 2nd, its like its locked. so i was wonder if the fix for it would be to bring the revs up before shifting.

If you are trying to downshift 2 gears and the shifter won't slide into the gate the issue is that the primary and secondary shaft speeds are are too far apart from each other. The syncros can't cope with the speed differential so you can't get it in gear.
The fix is to double clutch the downshift. This should be coupled with a blip of the throttle to match the revs. The important thing is that you do it in the right sequence.
First you dip the clutch in enough to slip the shifter into neutral, you then (with the clutch pedal up) blip the throttle, immediatly then you dip back into the clutch and select the lower gear and release the clutch before the revs fall.
The key is bliping the throttle with the clutch out/transmission in neutral, this is what syncs the primary and secondary shaft speeds.
Doing this manuvuer while coasting into a turn is one thing (easy), if you are coming in under braking it is an order of magnitude harder since you will have perform heel-toe braking to blip the throttle.
Old 04-09-2008 | 08:55 PM
  #60  
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Originally Posted by patel511
I had a question: Is there a big difference between a G35 coupe and G37 as far as the clutch goes?
I went from a G35 to a G37. Clutch on the 35 seems higher.



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