which improves the most hp on a s2k

 

single definately

more straight-through design, lighter, etc...

 

i would say single for making hp/tq because of its better flow characteristics.

 

On an otherwise stock S2000 there are no power gains and in many cases power losses with aftermarket exhausts. A single design is preferable, simply because they are harder screw up manufacturing, and typically weight the least. However, they also tend to be the loudest. Basically there is a trade off, but shaving up to 40lbs of weight can be of some benefit.

 

Here is our dyno on the dual kit.



Here is one for our single kit



There are some minimal gains but still better than most.

Thanks,

Duc

 

what exhaust dyno is that

 

These are the SPugen exhausts.

 

was that done at Church Automotive?

 

Yes it was. Shawn Church is the man for all S2ks' in socal!

 

Damn Duc, everywhere I turn, there you are. .invading Honda-Tech now eh?


Brian

 

What Up Brian...

 

Shawn is the man... period... awesome tuner with an awesome attitude... like that guy.

 

IMO i like dual ... that's about the only car i would prefer to have a dual over a single on a S2K

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EGkwazhimoto &raquo;</TD></TR><TR><TD CLASS="quote">IMO i like dual ... that's about the only car i would prefer to have a dual over a single on a S2K</TD></TR></TABLE>

agreed

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EGkwazhimoto &raquo;</TD></TR><TR><TD CLASS="quote">IMO i like dual ... that's about the only car i would prefer to have a dual over a single on a S2K</TD></TR></TABLE>

wtf?
alright, sorry. it's just opinion.

meh, i like the single over the dual, even aftermarket duals.. cuz it's better for HP, and stuff. even if it doesn't offer that much more HP. i still like single.

but yeah.

 

I'm with you, I like the single better.

Duc

 

Am I retarded or does the dual kit make more power? I thought everyone was saying that the single makes more power?? Did someone just switch the dyno #'s around?

 

lol, the single kit makes more power.

Duc

 

Is there some replacement valance for the rear? Single would be great to have, but it would look awkward with that hole in the valance on the left being empty I think.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ahhvtec &raquo;</TD></TR><TR><TD CLASS="quote">lol, the single kit makes more power.

Duc</TD></TR></TABLE>

But when you look at the dyno charts above they state a different story. I am pretty sure that the 1st dyno states dual muffler and it makes more power. Then the second states its a single muffler and that makes less power. Granted they were dyno'd on different days where temp and humitity can effect the chart. But I am positive that it says the first one makes more power.

 

I see what you are saying. You are looking at the total power. However, everycar is different especially in this case. You have to look at the difference in power gained. The first dyno is from an '02 and the second dyno is from an '00. From experience, the '02 make about 5 to 10 hp more stock. Not sure why Honda did this but the ecu on the '02 are advanced for more power. Then in '03, the timing was retarded back to match the '00 and '01. I think I'm about to get flamed here.

Duc

 

I see what you are saying. Maybe my 03 could use a 02 ecu upgrade..

 

I reflashed my ECU. Didn't really make a difference on my *** dyno. I was just bored one day at work.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dkim48 &raquo;</TD></TR><TR><TD CLASS="quote">I see what you are saying. Maybe my 03 could use a 02 ecu upgrade.. </TD></TR></TABLE>


hmm the 02/03 ECU have the same part number, i believe they're the same exact thing. 00 = 01 , 02 = 03

 

A lot of times honda will have updates for ECU flashing for whatever reason. (eg. emissions) But if you know how to use the HIM (Honda Interface Module) you can just transfer previous ECU maps into yours. Like I said I was bored and it didn't really make a difference . That's a fun little device though. Takes forever to upload. Damn '03 Accord updates .