What are your experiences running open downpipe on your turbo cars(at the track)? I'm talking turbo street cars w/ 275-400HP. Please list your experiences and tell me if it's worth doing. What kind of times did you drop or gain? Thanks.


Modified by TurboCX at 7:55 PM 10/18/2003


Modified by TurboCX at 3:12 PM 10/20/2003

 

I dont have a Honda but I dont use any exhaust at all. I have a small j-pipe running off the turbo and it seems to do fine. I have seen dyno graphs where turbo cars gained as much as 20hp off of running no exhaust.

 

Running open exhaust on a turboed anything has nothing but benefits. Although it will run more lean when the exhaust is open, so you will probably need to add a little more fuel

 

and the flames coming out are way to cool

 

Thanks for the replies. I will probably try it next time I head out to the track. Thanks.

 

Just make sure you don't run to lean.

 

Exhausts are over-rated, Drop that bitch and throw it away.

 

it sucks when its a daily driver because you usually come out smelling like fuel. but if you dont mind it then chuck it.

 

I love the smell of freshly burnt c16

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SIXTYdashONE &raquo;</TD></TR><TR><TD CLASS="quote">I love the smell of freshly burnt c16 </TD></TR></TABLE>

i think everybody on ht can say the same thing.

 

Except some of the kiddies who still run pump gas all the time.

 

 

I was wondering the same thing. But, what I also want to know is how long should the downpipe be? I mean, for best flow of course.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boostedh22a &raquo;</TD></TR><TR><TD CLASS="quote">Running open exhaust on a turboed anything has nothing but benefits</TD></TR></TABLE>

id have to agree on that

 

Pro:
Faster spool
Better top end
Insane spooling sound
Nice smell if you like the smell of burnt fuel

Con:
Loud as **** when its 3"
Some tracks wont let you race without a muffler
Cant really hear when somethings going wrong

to tell you the truth id run open downpipe out the side of my bumper if my local track didnt require mufflers

 

Except some of the kiddies who still run pump gas all the time. and AC

I took my exhaust off about 4 mos ago for a race and never put it back on. Love the sound

 

at low boost of coursxe, but i have dyno plots of my car losing like 12-*15 whp from the open dp and a/f's stayed the same in both cases.

 

Open Downpipes aren't too bad to drive around as long as you keep the RPMs reasonable, theyre pretty damn quiet.

a lot of tracks will still let you run on muffled vehicle only night because the turbo is actling almost like a muffler itself, and they're still not as loud as those bigblock monsters running anyway, I guess it's how cool you are with the officials.

we were running garys full race car on muffled only night at englishtown all the time up until the 2step just got too out of control loud.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hybrid901 &raquo;</TD></TR><TR><TD CLASS="quote">Just make sure you don't run to lean.</TD></TR></TABLE>

I'll definitely watch out for that. Thanks.

Thanks to everyone who responded to this post. You guys are always helpful.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jay Dirt &raquo;</TD></TR><TR><TD CLASS="quote">
we were running garys full race car on muffled only night at englishtown all the time up until the 2step just got too out of control loud.</TD></TR></TABLE>

haha amen to that