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Fred's 1998 C34 Nissan Stagea 25X Four Wagon 
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Joined: Tue Jan 15, 2008 2:31 pm
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Took it for a WOF today and it failed on a few things, and got warned on a few more:

1) left tie rod play
2) front pads all but gone

Warn:

3) mufflers dodgy/leaking
4) tyres have camber wear
5) exhaust mount broken - trip to pickapart sometime soon

Things I noticed:

1) Rust in bonnet and a few other places appearing
2) ATF leaking underneath, not sure where from, but this is ending up on the exhaust, hence smoke on a few driveway climbs - maybe out breather under heavy load from expansion?

So aside from the immediate ones, I'll need to architect and build an exhaust, or part thereof, to fit this car. Therefore 3" is going in, hopefully fairly quietly. Got 6 months to sort the minor stuff out, including that.

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Mon Jan 22, 2018 12:23 pm
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Got it a WOF some days ago, and have begun planning the new 3" turbo-ready exhaust that needs to be completed inside the next 5 months or so.

First up, my OnePlus 3T with cover is 153mm long and 77mm wide. Why? Read on.

Rear muffler available space measured by super accurate cell phone dimension fractions:

1 length + ~3cm depth/height at rear = ~183mm
3 lengths long = ~459mm
2 lengths + 0.5 widths wide = 306 + 38.5 = ~344.5mm

Under subframe clearance measured the same way:

1 width + ~1cm = ~87mm, only need 76mm so this is ample without affecting clearance or risking heat damage.

No measurements on the middle muffler or catalytic converter area for another muffler and a resonator/coby, respectively, yet.

Plan is to do minimal joins/welds and start the 3" part as rearward as possible. The muffler WOF man complained about is the middle one, though, so it's going to get most of an exhaust.

I'll probably just put a 3" size flange onto the stock exhaust up in front of the middle muffler and post catalytic converter and have it step up there or something like that.

Goal is as quiet as possible for the space available with no restriction for later RB30DET use.

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FreeEMS dev diary and its comments thread and my turbo truck!
n00bs, do NOT PM or email tech questions! Use the forum!
The ever growing list of FreeEMS success stories!


Sat Feb 10, 2018 4:31 am
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Joined: Tue Jan 15, 2008 2:31 pm
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Middle muffler, which actually failed measures:

length x width x height
350 x 250 x 100 offset/centre config (centre at rear, offset at front)

But the car could accommodate:

400 x 350 x 125 max same config

There's a stainless steel glass packed perforated in that config in this size:

330mm X 230mm X 100mm which is smaller than stock.

But I'd prefer to go up in size, or stay the same, not go down.

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DIYEFI.org - where Open Source means Open Source, and Free means Freedom
FreeEMS.org - the open source engine management system
FreeEMS dev diary and its comments thread and my turbo truck!
n00bs, do NOT PM or email tech questions! Use the forum!
The ever growing list of FreeEMS success stories!


Tue Feb 13, 2018 12:14 pm
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