S2000 Talk Discussions related to the S2000, its ownership and enthusiasm for it.

dropping out of VTEC when shifting

Thread Tools
 
Old Mar 20, 2007 | 07:49 PM
  #41  
ej3ffrey's Avatar
Registered User
 
Joined: Jun 2006
Posts: 662
Likes: 1
From: San Antonio, TX
Default

lol at the slow motion part
Reply
Old Mar 20, 2007 | 08:10 PM
  #42  
dyhppy's Avatar
Registered User
 
Joined: Aug 2004
Posts: 5,749
Likes: 1
From: Santa Monica-SoCal
Default

thank you negcamber. u saved me a trip to the head doc
Reply
Old Mar 20, 2007 | 08:18 PM
  #43  
a_zepeda926's Avatar
Registered User
 
Joined: Aug 2006
Posts: 887
Likes: 0
From: Anaheim, CA
Default

i have not prob stayin in vtec either.
Reply
Old Mar 20, 2007 | 08:23 PM
  #44  
Elistan's Avatar
Registered User
20 Year Member
 
Joined: Oct 2000
Posts: 15,323
Likes: 28
From: Longmont, CO
Default

Yes, it'll stay above 6000rpm. It's all about clutch slip. Doesn't change the physics that the speed at 8200 rpm in 1st gear translates to 5352 rpm in 2nd.
Reply
Old Mar 20, 2007 | 09:00 PM
  #45  
Elistan's Avatar
Registered User
20 Year Member
 
Joined: Oct 2000
Posts: 15,323
Likes: 28
From: Longmont, CO
Default

And my own video I made a few years ago:
http://video.google.com/videoplay?do...68549530359473

You can see I start the shift at 56mph. That's right about 8000rpm. Next, you can see the clutch starts to engage once the engine has dropped to 7400rpm or so. The entire time the clutch is slipping, so even though the revs are dropping the car is still accelerating. It fully engages at about 63mph and 6400rpm. If I had just maintained speed rather than continued to accelerate, the clutch would have engaged at 56mph, which would be about 5800rpm, out of VTEC.
Reply
Old Mar 20, 2007 | 09:21 PM
  #46  
whitemistress2k's Avatar
Registered User
 
Joined: Mar 2006
Posts: 2,928
Likes: 0
From: Asheboro, NC
Default

9k redline FTW!!!!!!!!!!!!!
I have NO problem staying in VTEC... ever!

8k RPM is just too short and comes too fast, I'm sorry...
Reply
Old Mar 21, 2007 | 01:29 AM
  #47  
JLEEzAP2's Avatar
Registered User
 
Joined: Jun 2005
Posts: 1,225
Likes: 0
From: South Cali
Default

If we(ap2's) drop out of vtec on our redlines shifts, then why is it that the AP1 isn't faster then the AP2?
Reply
Old Mar 21, 2007 | 04:24 AM
  #48  
Enthralled's Avatar
Registered User
 
Joined: Nov 2005
Posts: 14,373
Likes: 0
From: Los Angeles, CA
Default

Originally Posted by negcamber' date='Mar 20 2007, 07:26 PM
Do you still have your CDV?
yes
Reply
Old Mar 21, 2007 | 04:38 AM
  #49  
QUIKAG's Avatar
20 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2001
Posts: 9,510
Likes: 478
From: Dallas
Default

Originally Posted by JLEEzAP2' date='Mar 21 2007, 01:29 AM
If we(ap2's) drop out of vtec on our redlines shifts, then why is it that the AP1 isn't faster then the AP2?
No kidding. The AP1 must be a slow POS if we can still keep up with them and the AP2 is out of VTEC on every upshift.

Imagine if the AP2 could stay in VTEC the whole time? It would absolutely SMOKE the crappy 2.0L AP1 motor.


Reply
Old Mar 21, 2007 | 05:56 AM
  #50  
negcamber's Avatar
Former Moderator
 
Joined: Jul 2001
Posts: 8,821
Likes: 5
From: Jacksonville, FL
Default

Originally Posted by ENTHRALLED' date='Mar 21 2007, 07:24 AM
yes
Then it does not matter how new your clutch may be...you have a built in clutch slipping device.
Reply



All times are GMT -8. The time now is 07:12 AM.