bluesi00

i was wondering if anyone has done this and if this will cause any problems, i have a 00 civic si and i dont want my cat to be loud when i hit boost so i was wondering if i recirculated the dump to go into my exhaust will that cause any problems???

Frozen E

Your CAT would get loud? It's just part of the exhaust system. Doesn't make any sounds.
As far as your dump goes, I'm guessing you're talking about the wastegate dump. You shouldn't be creating any problems by routing the dumptube into the exhaust pipe.

Seraph0

I run this way. It's quiet. Works fine.

Keep the wg exhaust seperate as long as possible.

bluesi00

ok, thanks. any negatives for doing this???

Seraph0

If you are running a normal 2.25" exhaust I expect some loss of power.

If you have a 3" the loss should be minimal.

If you loop the wg exhaust back in right at the turbo outlet it will generate a lot of turbulence and you will likely lose power.

So the negative is you WILL lose some power. How much depends on your setup.

It's so nice to boost 15psi and hear only the turbo screaming.

CRX T-Si

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MarkC &raquo;</TD></TR><TR><TD CLASS="quote">It's so nice to boost 15psi and hear only the turbo screaming. </TD></TR></TABLE>

Damn that would be nice..........................

If you could re-circulate it back to your exhaust do it. Sounds stock and gives you that Sleep sound.

I hate the way mine sounds, when the wastgate opens it's nasty. I might do the same and have it re-circulate it back into the DP but space is limited, very limited in the EF.

mamaboy

closed loop is fine especially if your a dailiy driver. you can create it with tubing, but you can also use flexpipes and weld does on....just to give you some ideas.


Modified by mamaboy at 11:19 PM 6/14/2004

vaporboy12

i like open wastegate it sounds sick when it opens