i have just added a cold air intake to my 97 vtec with a custom dual exhaust. people say i should add a high flow cat. at the time i'm not doing headers only because it seems that many people say that the vtec exhaust manifold is good enough. should i bother with the high flow cat? please advise .....i love this site. also, i live in new york.........will this put my "check engine " lite on. can't have that in new york any more, or it won't pass inspection. thank you

 

if u plan to make future engine NA mods, it will be a bottleneck

 

Same with a turbo. With an i/h/e combo it wont be much use, but making more power it will be quite useful. Expect 1-4 hp gain with high flow cat, 3-8 with test pipe. And that's at crank, so expect basicaly 1-2 hp at the wheels at the best.

 

I'd like to see your custom dual exhaust setup... very interesting.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TSAF22B1 &raquo;</TD></TR><TR><TD CLASS="quote">I'd like to see your custom dual exhaust setup... very interesting.</TD></TR></TABLE>
me tooo

 

I hope it's a V6 and not a 4 cyl, or you just LOST some performance.

You lose low end torque and you weigh the car down if thats a 4 cyl, the 4 cyl should get 2.5" single piping max

 

Any gain from the high-flow cat will be cancelled-out by your dual exhaust and the added weight of said exhaust. Also, if you want to make decent NA power, a good header is very important...

 

...<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SCHOMPER &raquo;</TD></TR><TR><TD CLASS="quote">97 vtec with a custom dual exhaust. </TD></TR></TABLE>
Well... for that model accord vtec and v6 didnt come in the same package...

 

Congratulations then, you made your accord slower...

What V6 did they use? I doubt they used the J30 like on 6th gens?

 

No its not a J30, I believe its a 2.7... c27a4? 170hp.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TSAF22B1 &raquo;</TD></TR><TR><TD CLASS="quote">No its not a J30, I believe its a 2.7... c27a4? 170hp. </TD></TR></TABLE>

Yeah, same engine that was in the Legends.

 

I4's are faster off the line, and they handle better....honda just put in a v6 to compete with every other midsize family sedan having a v6 option

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fw190bvi &raquo;</TD></TR><TR><TD CLASS="quote">I4's are faster off the line, and they handle better....honda just put in a v6 to compete with every other midsize family sedan having a v6 option</TD></TR></TABLE>

Yeah, just to satisfy those who don't know much about cars but are willing to pay $1-2k more because "v6's are faster." The only edge the v6 has over the i4 is the low-end tq.. but the i4 is better in every other way.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by pyrojeff &raquo;</TD></TR><TR><TD CLASS="quote">

Yeah, just to satisfy those who don't know much about cars but are willing to pay $1-2k more because "v6's are faster." The only edge the v6 has over the i4 is the low-end tq.. but the i4 is better in every other way.</TD></TR></TABLE>

ok

 

WE PAINT THE CAR WEDNESDAY ....AND SHOULD HAVE THE EXHAUST DONE IN 2 WEEKS ONCE I GET THE HIGH FLOW MUFFLERS. I'LL TRY TO REMEMBER TO SEND YOU A PIC .......THE CAR WILL BE VERY COOL .........BODY KIT WITH A BLACK PAINT JOB WITH SILVER METAL FLAKE

 

You will learn very quickly what to post and what not to post in this thread...
I hope you own a flame suit.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SCHOMPER &raquo;</TD></TR><TR><TD CLASS="quote">WE PAINT THE CAR WEDNESDAY ....AND SHOULD HAVE THE EXHAUST DONE IN 2 WEEKS ONCE I GET THE HIGH FLOW MUFFLERS. I'LL TRY TO REMEMBER TO SEND YOU A PIC .......THE CAR WILL BE VERY COOL .........BODY KIT WITH A BLACK PAINT JOB WITH SILVER METAL FLAKE</TD></TR></TABLE>

cant wait to see this... i hope he knows whats coming

 

Oh god


Oh the humanity, all those passengers!