 4th Gen 3" Downpipe with Electric Cutout |
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 Jun 23, 2009 - 1:00 PM
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 Enthusiast  Joined Mar 31, '04 From Summerville, SC Currently Offline Reputation: 5 (100%)  |
Prodigy515 picked up this 3" electric cutout and this past weekend I put together a downpipe for him and welded the cutout in. The upper part didn't quite come out how I wanted but I've got some ideas to make the next one better. Making the transition from an irregularly shaped oval to a 3" round pipe wasn't so easy
 Anyway enjoy the pics, we're going to get a decent video camera one of these days and take a vid for you.  -Doc This post has been edited by Dr_Tweak: Jun 24, 2009 - 1:23 PM -------------------- -Dr Tweak, 6GC's resident engine swap wiring expert extraordinaire Click here to see my swaps drtweak@phoenixtuning.com |
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Jun 23, 2009 - 1:48 PM
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 Moderator Joined Oct 1, '02 From fall river, ma Currently Offline Reputation: 13 (100%) |
you should have gore cut several sections of pipe together to make that trasition smoother, the way it is is horrible for flow.
props for making a downpipe tho! -------------------- Former Team 5SFTE pro member ;)
 13.6@108MPH, 5SFTE Powered |
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Jun 23, 2009 - 4:39 PM
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Enthusiast Joined Jul 14, '08 From St. Louis Currently Offline Reputation: 2 (100%) |
good job on the downpipe. I've been drawing up pipe for the past 2 weeks at work. I don't think you could effectively add a gore to the pipe while keeping the O2 sensor there. Maybe if you just move it down to just before the Y you could smooth out that elbow.
-------------------- '99 Celica GT - Sold
'11 Mazdaspeed3 |
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Jun 23, 2009 - 4:57 PM
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Enthusiast Joined Mar 31, '04 From Summerville, SC Currently Offline Reputation: 5 (100%) |
QUOTE (presure2 @ Jun 23, 2009 - 2:48 PM)  you should have gore cut several sections of pipe together to make that trasition smoother, the way it is is horrible for flow. props for making a downpipe tho! Yeah not real happy about how that came out. What makes it difficult (that you can't see in the pic) is that the pieces in that bend are going from a 4" irregular oval shape to a 3" round pipe (if you look closely at the pipe closest to the turbo you can see it's ovaled out) so making a smooth transition while doing that was a pain. Interestingly though when you look INTO the downpipe through the flange it looks much more smooth of a a bend than from the outside. -------------------- -Dr Tweak, 6GC's resident engine swap wiring expert extraordinaire Click here to see my swaps drtweak@phoenixtuning.com |
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Jun 23, 2009 - 5:02 PM
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 Enthusiast Joined Mar 8, '04 From Newport, RI Currently Offline Reputation: 63 (99%) |
what size exhaust is after the cutout ?
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Jun 24, 2009 - 1:25 PM
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Enthusiast Joined Mar 31, '04 From Summerville, SC Currently Offline Reputation: 5 (100%) |
The stock exhaust? 1 7/8"
-Doc -------------------- -Dr Tweak, 6GC's resident engine swap wiring expert extraordinaire Click here to see my swaps drtweak@phoenixtuning.com |
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Jun 24, 2009 - 1:38 PM
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 Enthusiast Joined Apr 4, '05 From ST PAUL, MN Currently Offline Reputation: 3 (100%) |
QUOTE (Dr_Tweak @ Jun 24, 2009 - 2:25 PM) The stock exhaust? 1 7/8" -Doc WHAT? WOW wouldnt that be a major power loss before you guys put the cutout in?? other then that it looks really really good! 
This post has been edited by RUNNIN-LOW: Jun 24, 2009 - 1:51 PM --------------------  |
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Jun 24, 2009 - 11:30 PM
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 Enthusiast Joined Feb 1, '05 From Charlotte NC Currently Offline Reputation: 14 (100%) |
damn doc! im jealous!!!!!!!!! ugh! the other 4th gen gets the goodies! lol
 j/k
--------------------  QUOTE (Galcobar @ Oct 15, 2008 - 2:44 AM) You want power but have no money. That's a problem. Cheap. Reliable. Fast. Pick two. |
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Jun 25, 2009 - 9:48 AM
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Enthusiast Joined Dec 8, '03 From Lancaster CA Currently Offline Reputation: 6 (100%) |
those cutouts are nice! i put one in the downpipe of a 7th gen i built a while back.
-------------------- 2001 Celica GT-S Turbo
1997 Supra TT 6speed 1997 Celica 3MZ/1MZ swap 1990 Celica All-Trac |
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Jun 25, 2009 - 10:41 AM
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Enthusiast Joined Mar 31, '04 From Summerville, SC Currently Offline Reputation: 5 (100%) |
QUOTE (RUNNIN-LOW @ Jun 24, 2009 - 2:38 PM) QUOTE (Dr_Tweak @ Jun 24, 2009 - 2:25 PM) The stock exhaust? 1 7/8" -Doc WHAT? WOW wouldnt that be a major power loss before you guys put the cutout in?? other then that it looks really really good! Uh yeah, definitely a power loss running through the stock exhaust. We're going to run it on a dyno pretty soon, and compare cutout closed and cutout open back to back -Doc -------------------- -Dr Tweak, 6GC's resident engine swap wiring expert extraordinaire Click here to see my swaps drtweak@phoenixtuning.com |
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Jun 25, 2009 - 1:38 PM
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Enthusiast Joined Feb 1, '05 From Charlotte NC Currently Offline Reputation: 14 (100%) |
What dyno you guys got out there?
-------------------- QUOTE (Galcobar @ Oct 15, 2008 - 2:44 AM) You want power but have no money. That's a problem. Cheap. Reliable. Fast. Pick two. |
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Jun 25, 2009 - 1:41 PM
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Enthusiast Joined Mar 31, '04 From Summerville, SC Currently Offline Reputation: 5 (100%) |
A couple of other shops in the area have dynos.
-Doc -------------------- -Dr Tweak, 6GC's resident engine swap wiring expert extraordinaire Click here to see my swaps drtweak@phoenixtuning.com |
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Jun 25, 2009 - 2:31 PM
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Enthusiast Joined Jul 28, '06 From Delaware Currently Offline Reputation: 0 (0%) |
Thought you bought a dynojet tweak?
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Jun 28, 2009 - 3:52 PM
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 Enthusiast Joined Dec 19, '07 From tx Currently Offline Reputation: 22 (100%) |
Isn't that cutout's exit properly positioned to cook the oil pretty effectively?
--------------------  ENGINE: '93 RC 3S-GTE/WRC CT-20b [18-20PSI] PERF: TRD/HKS/ARP/NGK/MSD/ACT/Blitz/STRI/APEX'i/TwosRus/GReddy/Magnaflo/KOYO SUSP: Tein/Bilstein/SusTech/ INT: SS-III SEATS/Toyota Hyper Sports EXT: WRC/TRD/404 QUOTE (lagos @ Aug 25, 2010 - 10:13 AM) Its a safety feature so that people like you don't end up killing themselves or everyone around them. Slow down Paul Walker. 6GC Chat - Go there: [url="http://www.griffgirl.com/forum/chat/index.php[/url] |
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