JDM Tuning Expert advice and discussion on JDM tuning for your S2000.

the Official "NA Tuning" thread

Thread Tools
 
Old Oct 19, 2006 | 01:24 AM
  #2091  
kenstyle's Avatar
Registered User
15 Year Member
 
Joined: Apr 2005
Posts: 2,414
Likes: 3
Default

Originally Posted by versionJDM,Oct 17 2006, 09:12 PM
i, personally, am not designing it, i am just helping with test data. it should preform equally on both motors.
Last question, I know you can't disclose too much about the header. Is there an ETA/approximate release date already planned out?
Old Oct 19, 2006 | 01:36 AM
  #2092  
kenstyle's Avatar
Registered User
15 Year Member
 
Joined: Apr 2005
Posts: 2,414
Likes: 3
Default

Here is some recent r&d information from Hytech:

[QUOTE]So far we have run the first of probably three dyno sessions
Old Oct 19, 2006 | 05:34 AM
  #2093  
2QYK4U's Avatar
Registered User
 
Joined: Sep 2005
Posts: 6,790
Likes: 0
Default

Originally Posted by ALaS,Oct 19 2006, 12:09 AM
I talked to some guy who had an AP1 with an AP2 tranny swap. He said he had 4.77 gears but somethign ni 4th and 6th to make it not rev as HIGH on the highway. He also mentioned how he had a 4.57 final drive. Sorry, I'm not to sure how the gear mechanics work.
If you upgrade your FD (to something like a 4.56), you can upgrade your 6th gear to something "taller" to allow for lower cruising RPMs. A popular mod for the RSX guys is the ITR FD and the TSX 6th gear.
Old Oct 19, 2006 | 05:37 AM
  #2094  
wildcardtrd's Avatar
Registered User
 
Joined: Nov 2004
Posts: 4,287
Likes: 1
From: UCF Knights!
Default

Originally Posted by versionJDM,Oct 18 2006, 11:00 AM
i am so happy that the guy is local to me!
Lucky bastard!! You and I are about as far away as you can get in the continental U.S.
Old Oct 19, 2006 | 05:53 AM
  #2095  
HvRRZ's Avatar
Registered User
 
Joined: Jul 2004
Posts: 5,645
Likes: 8
From: Los Angeles, CA
Default

Originally Posted by ALaS,Oct 19 2006, 12:09 AM
I talked to some guy who had an AP1 with an AP2 tranny swap. He said he had 4.77 gears but somethign ni 4th and 6th to make it not rev as HIGH on the highway. He also mentioned how he had a 4.57 final drive. Sorry, I'm not to sure how the gear mechanics work.
well the ap2 gearing is already lower compared to the ap1 gearing. so if he had 4.57's in his ap2 then it would be like having 4.77's in an ap1 tranny. Maybe that's what he meant about having 4.77's in the lower gears? And making the fifth and sixth gear taller may take a bit more money, but I'm glad to se he did it the right way. I'd probably do the same thing.
Old Oct 19, 2006 | 07:15 AM
  #2096  
Johnny Sack's Avatar
Thread Starter
Registered User
 
Joined: Jul 2005
Posts: 11,993
Likes: 1
From: formerly versionJDM
Default

Originally Posted by 2QYK4U,Oct 19 2006, 06:37 AM
So, if this guy saying that the cams alone should make an additional 40rwhp, or is that in combination with ITBs?
40whp with cams. what about tuning, supporting mods. is it just 40whp on a stock car. i highly doubt that.
Old Oct 19, 2006 | 08:20 AM
  #2097  
Johnny Sack's Avatar
Thread Starter
Registered User
 
Joined: Jul 2005
Posts: 11,993
Likes: 1
From: formerly versionJDM
Default

Originally Posted by 2QYK4U,Oct 19 2006, 09:05 AM
I talked to Brian Crower about the cams he makes and he told me that his cams are good for 20-30rwhp with tuning. He charges $575 for both cams.
Old Oct 19, 2006 | 09:17 AM
  #2098  
Johnny Sack's Avatar
Thread Starter
Registered User
 
Joined: Jul 2005
Posts: 11,993
Likes: 1
From: formerly versionJDM
Default

Originally Posted by 2QYK4U,Oct 19 2006, 10:03 AM
20-30rwhp isn't really that great when compared to the 100rwhp gains Cobras/Vettes get from cam upgrades.
ya but their also working double, almost triple the motor too. for 2.0-2.2 liters thats a good whp gain for us. 30whp on an s2 is like 60-70whp on a cobra.
Old Oct 19, 2006 | 09:31 AM
  #2099  
silversurfer05's Avatar
Registered User
 
Joined: Nov 2005
Posts: 347
Likes: 0
From: Baltimore, MD
Default

I am currently sitting at 220.02 rWhp and will be adding Skunk2 cams, valves, springs and retainers. James at JE Imports in Baltimore is a first class tuner and is expecting well over 230 rWhp after the cam install. I will provide an update when the installation is completed.

GO S2k NA Power!!!!!!
Old Oct 19, 2006 | 09:48 AM
  #2100  
Johnny Sack's Avatar
Thread Starter
Registered User
 
Joined: Jul 2005
Posts: 11,993
Likes: 1
From: formerly versionJDM
Default

Originally Posted by 2QYK4U,Oct 19 2006, 10:29 AM
If I look at it from a percentage gain perspective, I agree with you.

S2000: goes from 200rwhp to 225rwhp with upgraded cams = 8.9% gain
Cobra: goes from 400rwhp to 500rwhp with upgraded cams = 8% gain
thats exactly how i was looking at it.



All times are GMT -8. The time now is 05:15 PM.