Downpipe

1988gte · 08-21-2005, 07:36 AM

Okay Im new to the turbo thing. I have a 04 mustang mach 1 (32 Valve V-8) I posted about a month ago about some questions on my 88 supra turbo, anyway got it running all that good stuff. So what is a turbo elbow, downpipe? Is it the exhaust, goes to the exhuast? I am going to change my exhaust anyways from im guessing the turbo down and i see this info about the turbo elbow, downpipe. http://www.toyota-supra.info/forums/index....t=ST&f=4&t=1590 I just want somebody to explain it to me. I have read steve119md post about the manifold which just brings more questions do you want 2.5 to 3 inch or 3 to 3 inch I see many manifolds on ebay any feedback would be great

ddmcse · 08-21-2005, 10:31 AM

+bigger is better with a turbo
if you've ever seen a stock elbow (90 degree bend right off the turbo ) you'd have noticed that it's got a major blocked wall inside it .
if you are going to work on the exhaust i would make the elbow part of your plans for sure .
a google will prolly shopw you some before and after shots of the elbows

suprra_girl · 08-21-2005, 12:06 PM

it's exactly as you see it.... it's the part that bolts to the back of the turbo and to your exhaust downpipe.... a massive improvement upon stock

Poodles · 08-22-2005, 12:07 AM

It all depends on what you want to do, the elbow is restrictive, but the downpipe is REALLY bad becuase the pre-cat in it usually clogs. You can go with a new downpipe and elbow, or a elbow/downpipe that is one piece, or even better IMHO is a divorced downpipe which vents the wastegate to atmosphere instead of into the exhaust system. A lot of cars do that anyways, sounds better, and allows the exhaust to flow the exhaust only, and not the exhaust and excess boost from the turbo, which can kill the flow.

Such is the disadvantage of an integrated wastegate...

08-22-2005, 11:21 PM

ya i knocked out the platinum innards of both cats and it just so happends a 2.5 inch pipe slides right in to both cats. weld it up and looks like cats are still there wowser what a difference.. so thats what the turbo is supposed to spool up like???. he he he !!! and its still a very quiet sleeper...now i am machining my own 90 elbow from an extra one i had laying around.. should free up the rest, cant wait. yehaaa

h34r:

Luin Haden · 08-23-2005, 03:52 AM

what did you knock it out with? How easy was it?

1988gte · 08-27-2005, 05:48 AM

anybody know where to get a downpipe, devorce downpipe, elbow/downpipe (one piece)? can you go to a mufflershop and have them make you a downpipe? :huh:

Poodles · 08-27-2005, 06:53 AM

http://www.bicperformance.com/

joel w · 08-27-2005, 08:48 AM

Quote:

Originally posted by Luin Haden@Aug 23 2005, 03:52 AM
what did you knock it out with? How easy was it?

just a big rock bar. its like ceramic material, i think its actually platinum bust up and falls out. then remove the screen liner and sleeve it.. i

Poodles · 08-28-2005, 08:02 AM

yeah, most cats are ceramic on the inside, the metal matrix ones are the best you can get, and if you want to upgrade, get the lowest openings per square inch, as it will flow more. I wouldn't break up a good cat though...

08-21-2005, 10:31 AM	#2
ddmcse 500whp yet? Join Date: Jun 2005 Location: CT U.S.A. Posts: 966	+bigger is better with a turbo if you've ever seen a stock elbow (90 degree bend right off the turbo ) you'd have noticed that it's got a major blocked wall inside it . if you are going to work on the exhaust i would make the elbow part of your plans for sure . a google will prolly shopw you some before and after shots of the elbows __________________ 300+ RW HP Dyno run, jdm,mod turbo,3"exh,electfan,greddyboost Blown HeadGasket info My Supra KiXGaS

08-21-2005, 12:06 PM	#3
suprra_girl 7M POWAH! ;) Join Date: Jun 2004 Location: New Zealand Posts: 2,312	it's exactly as you see it.... it's the part that bolts to the back of the turbo and to your exhaust downpipe.... a massive improvement upon stock __________________ Please use the forum to ask your questions as they will get replied to much faster than pming me Pics of my build. "Good girls are just bad girls that don't get caught" Do a diagnostic first!

08-23-2005, 03:52 AM	#6
Luin Haden Stock Join Date: Aug 2005 Location: Sparta, MO Posts: 22	what did you knock it out with? How easy was it? __________________ -Luin Haden Sparta, MO Owner of a 1990 Targa Top 5 speed Turbo Supra It isnt pretty now, but just wait.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
downpipe question	boogum7	MKIII Supra	5	11-06-2006 02:32 AM
3" Downpipe	Reeves	MKIII Supra	10	08-31-2006 10:35 PM
Divorced Downpipe VS. 1 piece elbow-downpipe	87sleeper	MKIII Supra	1	10-04-2005 04:50 PM

08-21-2005, 07:36 AM	#1
1988gte 3" Exhaust Join Date: Jul 2005 Location: Lubbock Texas Posts: 140	Okay Im new to the turbo thing. I have a 04 mustang mach 1 (32 Valve V-8) I posted about a month ago about some questions on my 88 supra turbo, anyway got it running all that good stuff. So what is a turbo elbow, downpipe? Is it the exhaust, goes to the exhuast? I am going to change my exhaust anyways from im guessing the turbo down and i see this info about the turbo elbow, downpipe. http://www.toyota-supra.info/forums/index....t=ST&f=4&t=1590 I just want somebody to explain it to me. I have read steve119md post about the manifold which just brings more questions do you want 2.5 to 3 inch or 3 to 3 inch I see many manifolds on ebay any feedback would be great

08-22-2005, 12:07 AM	#4
Poodles 12psi boost Join Date: Jul 2005 Posts: 348	It all depends on what you want to do, the elbow is restrictive, but the downpipe is REALLY bad becuase the pre-cat in it usually clogs. You can go with a new downpipe and elbow, or a elbow/downpipe that is one piece, or even better IMHO is a divorced downpipe which vents the wastegate to atmosphere instead of into the exhaust system. A lot of cars do that anyways, sounds better, and allows the exhaust to flow the exhaust only, and not the exhaust and excess boost from the turbo, which can kill the flow. Such is the disadvantage of an integrated wastegate...

08-22-2005, 11:21 PM	#5
joel williams Guest Posts: n/a	ya i knocked out the platinum innards of both cats and it just so happends a 2.5 inch pipe slides right in to both cats. weld it up and looks like cats are still there wowser what a difference.. so thats what the turbo is supposed to spool up like???. he he he !!! and its still a very quiet sleeper...now i am machining my own 90 elbow from an extra one i had laying around.. should free up the rest, cant wait. yehaaa h34r:

08-27-2005, 05:48 AM	#7
1988gte 3" Exhaust Join Date: Jul 2005 Location: Lubbock Texas Posts: 140	anybody know where to get a downpipe, devorce downpipe, elbow/downpipe (one piece)? can you go to a mufflershop and have them make you a downpipe? :huh:

08-27-2005, 06:53 AM	#8
Poodles 12psi boost Join Date: Jul 2005 Posts: 348	http://www.bicperformance.com/

08-28-2005, 08:02 AM	#10
Poodles 12psi boost Join Date: Jul 2005 Posts: 348	yeah, most cats are ceramic on the inside, the metal matrix ones are the best you can get, and if you want to upgrade, get the lowest openings per square inch, as it will flow more. I wouldn't break up a good cat though...