Stock Greddy Downpipe w/ Thermal exhaust
03-14-2005, 10:29 AM
#1
Honda-Tech Member
Thread Starter
Join Date: Jun 2002
Location: Tampa, FL
Posts: 3,384
Likes: 0
Received 0 Likes
on
0 Posts
Stock Greddy Downpipe w/ Thermal exhaust
how big is it? 2"? 2.25"?
i am asking because i want to add a thermal exhaust and test pipe to the downpipe.
what size downpipe would i need? 2.25" flared to 3"? can that be done?
thanks, sorry for all the posts about this but my new questions never seem to get answered on my old posts
i am asking because i want to add a thermal exhaust and test pipe to the downpipe.
what size downpipe would i need? 2.25" flared to 3"? can that be done?
thanks, sorry for all the posts about this but my new questions never seem to get answered on my old posts
03-14-2005, 04:41 PM
#4
Join Date: Dec 2004
Posts: 377
Likes: 0
Received 0 Likes
on
0 Posts
if you are on a stock motor I say leave it alone as it will cause problems with creep and spiking. I run a 3'' all the way from the turbo and a 3'' magnaflow cat. I had massive spiking problems, in fact I couldn't control the boost whatsoever. The stock wastegate is way too small so either mod it or leave your setup as is.
03-14-2005, 04:43 PM
#5
Honda-Tech Member
Thread Starter
Join Date: Jun 2002
Location: Tampa, FL
Posts: 3,384
Likes: 0
Received 0 Likes
on
0 Posts
Re: (btotherizzle)
i know i plan on leaving the cast elbow and DP and putting a 3" thermal exhaust system
my question is how big is the stock greddy DP and what will i have to do to make it work with the thermal
my question is how big is the stock greddy DP and what will i have to do to make it work with the thermal
03-14-2005, 05:02 PM
#7
Honda-Tech Member
Join Date: Aug 2002
Location: Somewhere in, CT, USA
Posts: 3,910
Likes: 0
Received 0 Likes
on
0 Posts
Re: (btotherizzle)
You should be ok w/ a 3" thermal....a local member is running a 2.5" downpipe to a 3" carsound cat to a 3" thermal on an LS integra w/ no spiking issues. There's another local member that is running a 2.5" dp, test pipe, and a greddy catback w/ no spiking problems. I've also made a few 2.5" flared to 3" downpipes, some w/ 3" test pipes and some w/ 3" carsounds. As far as i know of none of them had any issues
Trending Topics
03-14-2005, 05:37 PM
#8
Honda-Tech Member
Thread Starter
Join Date: Jun 2002
Location: Tampa, FL
Posts: 3,384
Likes: 0
Received 0 Likes
on
0 Posts
Re: (B18Flip)
as of now, since this is my daily driver, i am going to keep the stock cast elbow and DP
does anyone know where i can get a 2" to 3" test pipe with o2 bung? kteller doesnt make that big of a jump.
the stock cat is 2.25 correct? so couldnt i do a 2.25" to 3" test pipe and have it fit correct?
does anyone know where i can get a 2" to 3" test pipe with o2 bung? kteller doesnt make that big of a jump.
the stock cat is 2.25 correct? so couldnt i do a 2.25" to 3" test pipe and have it fit correct?
03-14-2005, 07:39 PM
#11
Honda-Tech Member
Join Date: Aug 2002
Location: Somewhere in, CT, USA
Posts: 3,910
Likes: 0
Received 0 Likes
on
0 Posts
Re: (Integra21)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Integra21 »</TD></TR><TR><TD CLASS="quote">as of now, since this is my daily driver, i am going to keep the stock cast elbow and DP
does anyone know where i can get a 2" to 3" test pipe with o2 bung? kteller doesnt make that big of a jump.
the stock cat is 2.25 correct? so couldnt i do a 2.25" to 3" test pipe and have it fit correct?</TD></TR></TABLE>
If you know anyone w/ a welder and a chop saw or can find someone/place to do it you can build you're own flared dp. You can do it a few ways. To save you from hacking up your existing setup.....buy a 2.5" 3-bolt flange, a 2.5" 90 deg bend, a 2.5" to 3" reducer, an o2 bung, some 3" straight piping, and a few 3" 3-bolt flanges to make this: (just picture a test pipe instead of the high flow cat
)
Or you can just buy a 2" to a 3" reducer, and flare your existing greddy dp to a 3" test pipe and bolt that on to your thermal. Another idea would be to purchase a testpipe for your application and just flaring that to meet the 3" thermal....seeing as the greddy kits are bolt on, finding a testpipe to mod shouldn't be too hard. Goodluck
does anyone know where i can get a 2" to 3" test pipe with o2 bung? kteller doesnt make that big of a jump.
the stock cat is 2.25 correct? so couldnt i do a 2.25" to 3" test pipe and have it fit correct?</TD></TR></TABLE>
If you know anyone w/ a welder and a chop saw or can find someone/place to do it you can build you're own flared dp. You can do it a few ways. To save you from hacking up your existing setup.....buy a 2.5" 3-bolt flange, a 2.5" 90 deg bend, a 2.5" to 3" reducer, an o2 bung, some 3" straight piping, and a few 3" 3-bolt flanges to make this: (just picture a test pipe instead of the high flow cat
)Or you can just buy a 2" to a 3" reducer, and flare your existing greddy dp to a 3" test pipe and bolt that on to your thermal. Another idea would be to purchase a testpipe for your application and just flaring that to meet the 3" thermal....seeing as the greddy kits are bolt on, finding a testpipe to mod shouldn't be too hard. Goodluck
03-14-2005, 07:55 PM
#13
Honda-Tech Member
Join Date: Aug 2002
Location: Somewhere in, CT, USA
Posts: 3,910
Likes: 0
Received 0 Likes
on
0 Posts
Re: (Integra21)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Integra21 »</TD></TR><TR><TD CLASS="quote">ok thanks - so im best off having someone make me a test pipe that goes from 2" to 3"?</TD></TR></TABLE>
that's the easiest, but building the downpipe back would be more beneficial
that's the easiest, but building the downpipe back would be more beneficial
Thread
Thread Starter
Forum
Replies
Last Post
zach1288
Forced Induction
2
12-27-2008 05:13 PM
DraconicPenguin
Honda Civic / Del Sol (1992 - 2000)
8
12-21-2005 10:50 PM
boostincoupe
Forced Induction
1
05-22-2003 04:50 PM
