S2000 Under The Hood S2000 Technical and Mechanical discussions.

Shifting from 1st to 2nd

Thread Tools
 
Old Oct 2, 2018 | 05:46 PM
  #1  
jiepo's Avatar
Thread Starter
Registered User
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2018
Posts: 198
Likes: 35
Default Shifting from 1st to 2nd

Hey guys,

Got an MY00 AP1 S2K that tends to "crunch" from 1st to 2nd below 5k rpms. Even shifting between 4k and 5k rpm as recommended by others causes intermittent crunch.
This only happens from 1st to 2nd upshift below 5k RPMs.
Feels buttery smooth at 9k RPM... and during downshifts into 2nd. Double-clutching feels fine too.

Already greased my shifter, clutch fork, and slave cylinder;
Fresh clutch fluid;
Clutch pedal freeplay set;
Amsoil trans fluid

At this point I feel that this is a driver error, any tips for the 1-2 upshift, or should I just continue to double clutch?

Thanks.
Reply
Old Oct 2, 2018 | 07:27 PM
  #2  
clio's Avatar
 
Joined: Oct 2010
Posts: 503
Likes: 27
Default

Could perhaps be a worn synchro?
Reply
Old Oct 2, 2018 | 10:20 PM
  #3  
jiepo's Avatar
Thread Starter
Registered User
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2018
Posts: 198
Likes: 35
Default

I initially thought that aswell, but it's only during lower RPM ( <5k) that I get the crunch.
Downshifting into 2nd and taking it to redline feels great.
Reply
Old Oct 3, 2018 | 12:05 AM
  #4  
Deleted03.15's Avatar
Registered User
 
Joined: Jul 2013
Posts: 368
Likes: 10
Default

Right then, please this is to all owners of these wonderfully 'mechanical' cars, There is a man named Bob Houghton who is a Ferrari engineer (he now runs his own business for them) most owners mentioned a 'crunch/baulk' sound/feel when going into 2nd gear.....Bob's advice was simple....with all manual Ferrari cars, you never ever go from 1st to 2nd, instead you go 1st to 3rd and you do this until the car has warmed up which you'll know it has when it slots into 2nd without so much as a whimper, the same applies for our cars....after a few days of driving you'll start doing it without thought. Hope this helps you all ;-)
Reply
Old Oct 3, 2018 | 03:38 AM
  #5  
B serious's Avatar
Member (Premium)
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Nov 2007
Posts: 8,841
Likes: 1,705
From: Illnoise. WAY downtown, jerky.
Default

Notchy shifting is pretty normal. Is the gear grinding? Or is it just feedback through the shifter?
Reply
Old Oct 3, 2018 | 03:46 AM
  #6  
Slowcrash_101's Avatar
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2013
Posts: 5,731
Likes: 632
Default

People say not to skip shift with the s2k trans. Also, Ferraris have this thing called torque, which was an afterthought with this car it seems.
Reply
Old Oct 3, 2018 | 04:18 AM
  #7  
Deleted03.15's Avatar
Registered User
 
Joined: Jul 2013
Posts: 368
Likes: 10
Default

[QUOTE=Slowcrash_101;24518034]People say not to skip shift with the s2k trans. Also, Ferraris have this thing called torque, which was an afterthought with this car it seems.[/QU

The torque is nothing to do with it.......Have you tried driving along at 30mph in 6th gear? itll happily do it although the moment you go any lower it does indeed need 5th.
These folk who suggest no skip-shift, are you seriously telling me that you'd be going along at say 50mph in 6th waiting to overtake but then going to 5th then 4th and finally 3rd? not a chance, you blip the throttle to rev match.....and you're on your way.
Reply

Trending Topics

Old Oct 3, 2018 | 04:54 AM
  #8  
windhund116's Avatar
Gold Member (Premium)
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2014
Posts: 11,360
Likes: 1,795
Default

When was the last transmission fluid change? What weight Amsoil?
Reply
Old Oct 3, 2018 | 12:06 PM
  #9  
arsenal's Avatar
 
Joined: Mar 2013
Posts: 2,730
Likes: 38
From: Portland
Default

[QUOTE=fullleather;24518038]
Originally Posted by Slowcrash_101
People say not to skip shift with the s2k trans. Also, Ferraris have this thing called torque, which was an afterthought with this car it seems.[/QU

The torque is nothing to do with it.......Have you tried driving along at 30mph in 6th gear? itll happily do it although the moment you go any lower it does indeed need 5th.
These folk who suggest no skip-shift, are you seriously telling me that you'd be going along at say 50mph in 6th waiting to overtake but then going to 5th then 4th and finally 3rd? not a chance, you blip the throttle to rev match.....and you're on your way.
I suggest you do a bit of research on skip-shifting and the S2000
Reply
Old Oct 3, 2018 | 01:13 PM
  #10  
Car Analogy's Avatar
10 Year Member
Photogenic
Photoriffic
 
Joined: Aug 2012
Posts: 8,755
Likes: 1,859
Default

May I suggest an alternative version of the Ferrari Technique? The variation is to avoid skip shift upshifts (because lack of grunt, because bad for syncros, and because bad idea to lug a cold engine).

Drive it like normal until it warms up and the issue goes away, and just deal with the crunchy shift into second until then.

The only thing this doesn't solve that the Ferrari technique does is easing the minds of those that just spent a considerable sum on a car, and feel it shouldn't have such rude manners.
Reply



All times are GMT -8. The time now is 10:00 PM.