S2000 Under The Hood S2000 Technical and Mechanical discussions.

got my car dynoed today.... disappointing..

Thread Tools
 
Old 04-03-2004, 01:34 PM
  #1  
Registered User

Thread Starter
 
mikecl713's Avatar
 
Join Date: Mar 2003
Posts: 1,554
Likes: 0
Received 1 Like on 1 Post
Default

this is my setup:apr304
comptech intake
toda header
spugen 2.5in dual exhaust
spoon cooling mods.
123 tq 187hp
air fuel peaks at 13.1 and bottoms out at 11.9
running rich may be the problem??

setup before:dec403
aem intake
dc sport header
spugen 2.5in dual exhaust
air fuel peaks at 14.3 bottoms out at 12.6
tq-137 hp-206.3

any suggestions?
the dyno people suspect the comptech intake doesnt work well with the toda. either because its not sucking in as fast as the toda and exhaust are blowing out or it could be a resonance problem. also said toda stuff usually need tuning
ill try to post them up by the end of the night
Old 04-03-2004, 01:38 PM
  #2  
Registered User
 
ACLR8's Avatar
 
Join Date: Jul 2003
Location: At the bottom, drowning
Posts: 12,308
Likes: 0
Received 0 Likes on 0 Posts
Default

same dyno and same envrinmental factors??

The environment shoudln't account for nearly 20hp but a combination of a few might come close to 20hp.
Old 04-03-2004, 01:49 PM
  #3  
Registered User

Thread Starter
 
mikecl713's Avatar
 
Join Date: Mar 2003
Posts: 1,554
Likes: 0
Received 1 Like on 1 Post
Default

yep same place
Old 04-03-2004, 01:49 PM
  #4  
Registered User
 
beroznikmal's Avatar
 
Join Date: Jun 2002
Location: yes
Posts: 2,587
Likes: 0
Received 2 Likes on 2 Posts
Default

11.9 is very rich.... try and shoot for 13:1......
Old 04-03-2004, 01:49 PM
  #5  
Registered User
 
beroznikmal's Avatar
 
Join Date: Jun 2002
Location: yes
Posts: 2,587
Likes: 0
Received 2 Likes on 2 Posts
Default

what r u tuning the car with?
Old 04-03-2004, 02:57 PM
  #6  
Registered User

Thread Starter
 
mikecl713's Avatar
 
Join Date: Mar 2003
Posts: 1,554
Likes: 0
Received 1 Like on 1 Post
Default

this was with the stock ecu
the air fuel was all over the place
where the air fuel on the 206hp would lean out the air fuel on the 187hp would richen. its as if it became inverted.
what would cause this?
Old 04-03-2004, 03:05 PM
  #7  
Registered User
 
evo s2000's Avatar
 
Join Date: May 2001
Location: chantilly
Posts: 4,115
Likes: 0
Received 1 Like on 1 Post
Default

I would say the main difference is in the intake. Change the intake back to the Cold air and see if you feel a huge difference.
Old 04-03-2004, 05:38 PM
  #8  
Registered User

Thread Starter
 
mikecl713's Avatar
 
Join Date: Mar 2003
Posts: 1,554
Likes: 0
Received 1 Like on 1 Post
Default

i sold the cold air
what i will probably do is take the car back to dyno and replace the comptech with the stock intake without the box so have a lil makeshift short ram intake just to test out if the comptech is to blame
Old 04-03-2004, 05:50 PM
  #9  
Registered User

 
sebrings2k's Avatar
 
Join Date: Oct 2002
Location: 독도
Posts: 3,129
Likes: 0
Received 0 Likes on 0 Posts
Default

my dyno's with a 4IG+Toda & Comptech+Toda were pretty even.
The 4IG did have better low end.

Maybe your filter has too much oil further restricting air flow?
Old 04-03-2004, 05:51 PM
  #10  
Registered User

Thread Starter
 
mikecl713's Avatar
 
Join Date: Mar 2003
Posts: 1,554
Likes: 0
Received 1 Like on 1 Post
Default

how can u tell if its over oiled? if it is how can i fix it?


Quick Reply: got my car dynoed today.... disappointing..



All times are GMT -8. The time now is 01:14 AM.