JDM MY2004 is AP1 or AP2?
10-22-2007, 03:52 PM
#21
Registered User
Thread Starter
Join Date: May 2005
Location: Hong Kong
Posts: 5,252
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by jzz30,Oct 22 2007, 06:12 PM
yea uk still doesnt get the 2.2 try look!
http://www.honda.co.uk/car/
http://www.honda.co.uk/car/
j/kAnyway, I never knew UK didn't get the update. I thought the entire world got the F22c in 2006, since Japan also had the F22c. Something new that I learned today ...
10-22-2007, 04:00 PM
#22
Former Moderator
You guys really take things too literally. Ks320...thanks for clarifying for those looking for the leaves on the trees in the forrest. Although interesting facts on the chassis codes for the rest of the world.
10-22-2007, 04:27 PM
#23
Join Date: Jun 2004
Location: Potomac Falls, VA
Posts: 2,472
Likes: 0
Received 0 Likes
on
0 Posts
Not sure if this has been clearly answered yet or not. And I can't confirm 100% so sorry to add more speculation, but I remember reading a Japanese owner who posted about the MY04-05 AP1s.
The tranny is updated (smoother shifting etc), but the gear ratios are *not* shorter for the JDM MY04-05.
The suspension is the same, and I believe the steering rack is the same too (slower) because they both get 17" rims.
The chassis is the same between the MY04-05s around the world (getting the additional frame stiffening). They all get the visual updates, including the new headlights, taillights, front bumper, rear bumper, and 17" rims.
Can't find the Best Motoring video on YouTube anymore, my bookmarked video got removed for copyright violations.
But the video discusses the suspension changes.
The tranny is updated (smoother shifting etc), but the gear ratios are *not* shorter for the JDM MY04-05.
The suspension is the same, and I believe the steering rack is the same too (slower) because they both get 17" rims.
The chassis is the same between the MY04-05s around the world (getting the additional frame stiffening). They all get the visual updates, including the new headlights, taillights, front bumper, rear bumper, and 17" rims.
Can't find the Best Motoring video on YouTube anymore, my bookmarked video got removed for copyright violations.
But the video discusses the suspension changes.
10-22-2007, 06:28 PM
#25
Originally Posted by RED MX5,Oct 22 2007, 01:20 PM
Hey Jzz30, it looks like you're right to me, but as you can see, we're all a little confused.
Why do you suppose Honda kept selling the AP1 chassis and F20Cx engine combination to the rest of the world for so many years? Do the AP1's made in MY04 and later have 17" wheels? If so, how many of the other AP2 upgrades did they get?
Why do you suppose Honda kept selling the AP1 chassis and F20Cx engine combination to the rest of the world for so many years? Do the AP1's made in MY04 and later have 17" wheels? If so, how many of the other AP2 upgrades did they get?
JDM 06 are the same as an 06 model here except the RHD
i would think that the rest of the world still has the 2.0L because of vehicle taxation. doesnt it cost more to own a car that has a 2.1L engine compared to a 2.0L engine in EU? i thought that it did. i know it does in japan.
10-22-2007, 06:35 PM
#26
Originally Posted by Ks320,Oct 22 2007, 02:32 PM
Hmmm interesting. So the gearing isn't shorter. That's no good. I do like the AP2 gearing. I guess Honda decided the shorter gearing doesn't go well with the 9k rpm. Never knew that before until you mentioned, and I dug this up just now: http://www.youtube.com/watch?v=DuTtLYhFJT4
And using this calculator: http://www.turnzero.com/technical_resource...gear_calculator
At 3:32, seems like with the F20c (yellow) one, the driver is hitting redline @ 148km/h, which is where USDM AP1s are hitting the redline. Using a 9000rpm redline with AP2 gearing, the car should hit redline @ about 142km/h. Using a similar logic, I come up with the same conclusion for 2nd gear but the diff between AP1 and AP2 gearing with 9000rpm redline in 2nd isn't as apparent).
I guess my next wonder is whether Honda put the stronger synchros into the 2004 / 2005 models in Japan ...
Anyway, so ya, looks like you just brought up another diff ...
And using this calculator: http://www.turnzero.com/technical_resource...gear_calculator
At 3:32, seems like with the F20c (yellow) one, the driver is hitting redline @ 148km/h, which is where USDM AP1s are hitting the redline. Using a 9000rpm redline with AP2 gearing, the car should hit redline @ about 142km/h. Using a similar logic, I come up with the same conclusion for 2nd gear but the diff between AP1 and AP2 gearing with 9000rpm redline in 2nd isn't as apparent).
I guess my next wonder is whether Honda put the stronger synchros into the 2004 / 2005 models in Japan ...
Anyway, so ya, looks like you just brought up another diff ...
10-22-2007, 06:41 PM
#27
Join Date: Jun 2004
Location: Potomac Falls, VA
Posts: 2,472
Likes: 0
Received 0 Likes
on
0 Posts
The tranny is supposed to be the same for MY04-05s across the world EXCEPT for the gear ratios. So the improved synchros, smoother shifting, etc is all supposed to be there for the updated S2000s. I know gear ratios is an important part of the tranny, but hopefully that makes sense. 
Again, from what I have read and recall from a Japanese S2000 owner in a similar thread to this one from back in the day.
Personally, I would love to own a Euro or JDM MY04-05. Actually, I'd just love to have an F20C in my existing car.
Again, from what I have read and recall from a Japanese S2000 owner in a similar thread to this one from back in the day.
Personally, I would love to own a Euro or JDM MY04-05. Actually, I'd just love to have an F20C in my existing car.
10-22-2007, 06:48 PM
#28
Former Moderator
This is the first I've heard that the JDM MY04-05 tranny did not get the same ratio as the USDM. I'd really like to see more info on that. And it does not make sense looking at the Best Motoring vid. At the start the MY04 out accelerates the MY03 and the only reason that could be, given at least somewhat decent drivers at the launch, is that the MY04 has the different reduction gear. Otherwise, the only conclusion is that the MY03 driver really really sucks at launching.
I wonder if someone in the Japanese forum can help...
I wonder if someone in the Japanese forum can help...
10-22-2007, 06:52 PM
#29
Originally Posted by LiQUiD iCE,Oct 22 2007, 04:41 PM
The tranny is supposed to be the same for MY04-05s across the world EXCEPT for the gear ratios. So the improved synchros, smoother shifting, etc is all supposed to be there for the updated S2000s. I know gear ratios is an important part of the tranny, but hopefully that makes sense.
Again, from what I have read and recall from a Japanese S2000 owner in a similar thread to this one from back in the day.
Personally, I would love to own a Euro or JDM MY04-05. Actually, I'd just love to have an F20C in my existing car.
Again, from what I have read and recall from a Japanese S2000 owner in a similar thread to this one from back in the day.
Personally, I would love to own a Euro or JDM MY04-05. Actually, I'd just love to have an F20C in my existing car.
5th>.942 to the ap1's .970 and
6th>.763 to the ap1's .810
10-22-2007, 07:00 PM
#30
Former Moderator
I used our lovely new search engine in the Japanese forum to find this thread:
https://www.s2ki.com/forums/index.ph...ic=256840&st=0
About half way down it seems to indicate that all S2k trannies are the same for MY04+
https://www.s2ki.com/forums/index.ph...ic=256840&st=0
About half way down it seems to indicate that all S2k trannies are the same for MY04+