What did honda do to the 04 S2k to still keep hp at 240. Seems to me that if you bump the displacement and compresion up like honda did, that you are going to get some hp gains. I think the new S2K will make huge gains off of just a few simple mods(i,h,e) and maybe some cams. What do you guys think.

 

Peak HP didn't go up, but torque did and the powerband is more usuable at lower rpms. Not quite sure how it will respond to mods.

 

Check out the front page on http://www.vtec.net

Honda didn't keep the 04 and 240 hp, they just told you they did. I did the dyno tests and the numbers are legit.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by C_A_T &raquo;</TD></TR><TR><TD CLASS="quote">Check out the front page on http://www.vtec.net

Honda didn't keep the 04 and 240 hp, they just told you they did. I did the dyno tests and the numbers are legit.</TD></TR></TABLE>

 

the torque curve shifted to the left, offering more torque at lower rpm.

 

im antsy to drive one after hearing that news

but then again, i think after driving a new one, ill be sad to get back in mine and it be slower

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by C_A_T &raquo;</TD></TR><TR><TD CLASS="quote">Check out the front page on http://www.vtec.net

Honda didn't keep the 04 and 240 hp, they just told you they did. I did the dyno tests and the numbers are legit.</TD></TR></TABLE>

Great article Shawn.. Thanks for sharing...

 

i'm so glad i ordered my 04. i was going back and forth whether to get one or not, but I ordered one anyways. that article definitely boosted my thoughts. great articles. I loved the charts

 

The folks in the North Texas S2000 Owners Club are holding a dyno day to verify the numbers on a production '04 as well as several other '00-'03 cars. Should help to remove some of the variables and remaining questions. Stay tuned...

 

The North Texas S2000 Owners Club held a dyno day last Saturday with some interesting results. After dyno runs on stock and modified S2000's ranging from MY '00-'04 there was no large difference in HP or torque that was found in the "'04 press car" dyno test. Some good gains were found with tuning and forced induction.

See for yourself:
http://forums.s2ki.com/forums/...ber=1

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Atoku &raquo;</TD></TR><TR><TD CLASS="quote">The North Texas S2000 Owners Club held a dyno day last Saturday with some interesting results. After dyno runs on stock and modified S2000's ranging from MY '00-'04 there was no large difference in HP or torque that was found in the "'04 press car" dyno test. Some good gains were found with tuning and forced induction.
</TD></TR></TABLE>

Please clarify. Was there an 04 cars that made good gains after tuning? If so, what was tuned?

Was there an 04 that was using forced induction?

 

No mods were installed on the '04 models tested. Both were low-mileage stock.
A couple stock '03 cars, one that was relatively new, had similar dyno results to the '04.
A supercharged and another turbocharged car (pre '04) posted the highest gains in HP and torque. A few modified NA cars (pre '04) posted better than 210 HP to the wheels while the stock S2000's regardless of their model year averaged between 200-205.
The test included several cars but all were dyno tested in the same manner under the same conditions. The end result being the TOV / UL results with the "press car" could not be reproduced in a US model customer car. Taking the additional revs of the F20C into account the dyno results appear close between the new and old engines.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Atoku &raquo;</TD></TR><TR><TD CLASS="quote">No mods were installed on the '04 models tested. Both were low-mileage stock.
A couple stock '03 cars, one that was relatively new, had similar dyno results to the '04.
A supercharged and another turbocharged car (pre '04) posted the highest gains in HP and torque. A few modified NA cars (pre '04) posted better than 210 HP to the wheels while the stock S2000's regardless of their model year averaged between 200-205.
The test included several cars but all were dyno tested in the same manner under the same conditions. The end result being the TOV / UL results with the "press car" could not be reproduced in a US model customer car. Taking the additional revs of the F20C into account the dyno results appear close between the new and old engines.</TD></TR></TABLE>

you forgot to mention the added torque that was advertised. The '04s advertised the same hp output, just more torque.

 

Actually, Vapor I was only commenting on the TOV dyno test compared to the NTS2K dyno day. I know what Honda advertised and never expected to find any additional HP as a result. What was surprising is the additional torque doesn't appear to be as big a difference as we were lead to expect. Check out the graphs in the posted link to draw your own conclusions.
Any increase in torque is welcome, just dont look for the HP output found in the "press" car. I suppose if Honda can produce a "ringer" there could be some more potential to further tune the new engine.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Atoku &raquo;</TD></TR><TR><TD CLASS="quote">Actually, Vapor I was only commenting on the TOV dyno test compared to the NTS2K dyno day. I know what Honda advertised and never expected to find any additional HP as a result. What was surprising is the additional torque doesn't appear to be as big a difference as we were lead to expect. Check out the graphs in the posted link to draw your own conclusions.
Any increase in torque is welcome, just dont look for the HP output found in the "press" car. I suppose if Honda can produce a "ringer" there could be some more potential to further tune the new engine.</TD></TR></TABLE>

UL pointed out that he wasn't 100% satisfied with the texas region's test procedures. He's not taking things personal, just expressed that the test can't prove anything conclusive since the testing apparatus and methods wasn't 100% perfect. Until more '04s are dyno'd with more miles on them in a somewhat perfect test environment, I'll hold my judgement. Non-the less, the info provided from the texas region's dyno day is interesting and stimulating argument.

 

A more detailed analysis of the torque curves was posted in another thread based on data from the TOV and NTS2K tests. The '04 torque curve peaks appear higher.
http://forums.s2ki.com/forums/...75202
As for the claims the conditions weren't perfect, well neither test can claim that. The point is the TOV test car is likely the anomaly, not the dyno. Good job on everyone's part.

 

whats the new engine code on the 2.2 04' s2k? f22c?