DOWNPIPE FLANGE

Mad_trbo · Posted: Mon Dec 22, 2008 12:06 am Post subject: DOWNPIPE FLANGE

I am looking at fabricating a downpipe and i am wondering if any of you are using a supra downpipe on your aristo's. i keep getting conflicting information that the flange for the supra is different than the flange of the aristo.

The flange I am speaking of is the three bolt flange that bolts up to what looks like an O2 housing. At least it houses the O2 sensor. Any help much appreciated.

Thanks

Greeny · Posted: Mon Dec 22, 2008 12:10 am Post subject:

For the stock twins?
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Has anyone really been far even as decided to use even go want to do look more like?

Mad_trbo · Posted: Mon Dec 22, 2008 2:49 am Post subject:

Yes my apologies, for not being clear.

Stock twin system.

Greeny · Posted: Mon Dec 22, 2008 5:14 am Post subject:

I wouldn't fuck with that then, unless u want boost spikes, followed by putting a restrictor in lower, thus canceling out what gains u made up top.
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Has anyone really been far even as decided to use even go want to do look more like?

Mad_trbo · Posted: Mon Dec 22, 2008 9:55 am Post subject: Larger Wastegate

Larger Wastegate which will eliminate the issues you are speaking of.

I simply want to know whether the bolt pattern for the supra down pipes will work on the Aristo.

It's a three bolt pattern, but is it the same three bolt pattern.

Thanks!

JayVee · Posted: Mon Dec 22, 2008 10:40 am Post subject:

You're installing a larger wastegate?

External or planning on boring out the internal one?

Best way to answer you flange quetion would be to EPC the gasket and see if the JZA80 is the same part number as the JZS147.

If I get bored enough later today I just may do that for you....

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"Everything is always okay in the end, if it's not okay, then it's not the end"

FIRSTROUND · Posted: Mon Dec 22, 2008 10:44 am Post subject:

*looks up at post number 2835 from JayVee*

makes it obvious why JZS147 is so succesfull

Greeny · Posted: Mon Dec 22, 2008 11:18 am Post subject:

If it's boring out the stock wastegate, still gets boost spike.
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Has anyone really been far even as decided to use even go want to do look more like?

JayVee · Posted: Mon Dec 22, 2008 11:20 am Post subject:

ICEMAN · 'Girly Man' Joined: 06 Oct 2008 Posts: 917 Location: Perth

Trust me dont change your downpipe with stock turbos, or Mr "T" will bring the pain.

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"Crack Fox" Im gonna hurt you real bad when we get inside........"Vince" Whats that "Crack Fox" nothing just a funny funny funny sound

JayVee · Posted: Mon Dec 22, 2008 12:19 pm Post subject:

ICEMAN · 'Girly Man' Joined: 06 Oct 2008 Posts: 917 Location: Perth

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"Crack Fox" Im gonna hurt you real bad when we get inside........"Vince" Whats that "Crack Fox" nothing just a funny funny funny sound

JayVee · Posted: Mon Dec 22, 2008 1:17 pm Post subject:

EPC online list the part number for the Exhaust outlet the same for the JDM 1993 JZS147 Aristo and the JDM 1993 JZA80 Supra......

17282 OUTLET, EXHAUST GAS CONTROL VALVE
17282-46010 2JZGTE..JZS147 1 $112.28

17282 OUTLET, EXHAUST GAS CONTROL VALVE
17282-46010 2JZGTE..JZA80 1 $112.28

**need to click on pic above, wouldn't let me imbed a .png file Confused

**
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"Everything is always okay in the end, if it's not okay, then it's not the end"

Greeny · Posted: Mon Dec 22, 2008 1:45 pm Post subject:

Just noting again, if the plan is to bore out the stock wastegate, fit a bigger flapper and change actuator. It doesn't work, still spikes.
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Has anyone really been far even as decided to use even go want to do look more like?

Mad_trbo · Posted: Mon Dec 22, 2008 4:18 pm Post subject:

Greeny · Posted: Mon Dec 22, 2008 4:38 pm Post subject:

Purely the boost spike, if your working an external in, then no worries, shouldn't have a problem. We're against it on the stock set up because piles of people have been advised against doing it, then done it, then come back and asked how to fix the boost spike. My own car has a bored out wastegate with the biggest flapper that can fit, etc. Won't run less than 1.4 Bar with no EBC hooked up, more on cold nights............ Not that I'dd care if I had a fuel system to support such boost -.-
_________________

Has anyone really been far even as decided to use even go want to do look more like?

xenith · Posted: Wed Jan 07, 2009 1:17 pm Post subject:

To answer your qustion yes they are the same. Changed my jzs147 exhaust when i got it . last week did my bros on his supra was the same flange. dont know if dump would fit though as aristo one looked like it had diffrent bends

Mad_trbo · Posted: Wed Jan 07, 2009 2:29 pm Post subject:

JayVee · Posted: Wed Jan 07, 2009 2:39 pm Post subject:

So my EPC answer on the 22nd wasn't convincing enough Confused

_________________

"Everything is always okay in the end, if it's not okay, then it's not the end"

aristo_tt · Posted: Wed Jan 07, 2009 5:39 pm Post subject: