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Engine Specific Info and Questions => IDI Engine => Topic started by: erice1984 on March 06, 2011, 11:30:52 am
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I was looking at Techtonics diesel downpipe.
http://www.techtonicstuning.com/main/index.php?main_page=index&cPath=2_11_4_284
Wondered if there were other solutions rather than $345.00
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When I installed the AAZ in my Rocco (mk1 based), I just cut the AAZ downpipe below the oem flexi which was just below turbo. I then made up my own section to mate into the system. It was basically just a 90deg bend, but with a little kick up to clear the anti-rollbar.
This was made of 50mm pipe. You may need to go to a larger diameter for performance, but I am not sure at what point the pipe diameter becomes a restriction.
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They have two different DP option's :
Advise what turbo you are going to use :KO3 OR ( same ) t2/t3/k14
You can also order it in 2.50 dia meter and have them make the rest of you exhaust in the same
I had my DP ceramic coated also from a coater
I cut my tail pipe stright as it come from the axle with a 30 s/s bend tip
it cant be sssen from the rear, I get no soot anywhere
pic ?
Email me at [email protected]
GB
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If you get some mandrel J and U bends then weld them it is much cheaper than that downpipe you listed. Smoking eddy another guy have a detailed thread about it.
Look around this page to get the hardest part to fab..the outlet.
http://weirtech.ca/catalog/index.php?cPath=13_17
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Wondered if there were other solutions rather than $345.00
I think this price is really high for form pipes connected...Here in Bulgaria, this would be cost arround $150
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You've only two options: the techtonics tuning or diy so depending on how much time you have, your welding skills and access to tools and materials it may or may not be worth it. I believe the reason the TT piece is $350 is because they have some r&d into it coupled with the fact that they've probably sold like ten units because there really aren't very many aaz's floating around North America and almost nobody modifies them let alone swapping them into mkI cars.
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I just made one... fits great. I havent made the end flange yet, as I havent gotten the exhaust yet from techtonics.
(http://a2.sphotos.ak.fbcdn.net/hphotos-ak-ash4/185859_10150438261090111_892870110_17419048_2957808_n.jpg)
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You get what you pay for...
I wanted a complete 2.5 system that fit
I supplied TT with two turbo and two manifold's for fitment..
They treated me right for doing this...
GB
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I will be running the OE turbo on the engine. That is unless someone can tell me there will be mileage gains from running a different turbo. Oh, and those gains would have to warrant the cost of the 'upgraded' turbo and related hardware.
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Yup, the point is that the AAZ engine shipped with two different OE turbos: K03 and K14. The two turbos have completely different exhaust-side manifold flanges... so you'll need to take that into account when you order or manufacture a DP.
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Gotcha, thanks Vince. I will have to take a look at it.
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It's a K03, pretty small. What do these things do for numbers? boost, when it comes online and when it tapers off.
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KO3, Iam running a hybride with a KO4 hot side, full ceramic housings
Gpopshop.com did the build..
GB
17 / 22 psi for me
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It's a K03, pretty small
Darn it... that's the one that's different from all the rest. The manifold is a long rectangle.. so the square TT manifold won't work for you. :'(
It's also probably configured to be "part time only"... look for a second hose coming out of the wastegate that goes to a solenoid valve.
Can't help you with boost numbers except to say it's the weakest of all the OEM turbos by far, although being small it spools a bit quicker than the others.
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It's a K03, pretty small
Darn it... that's the one that's different from all the rest. The manifold is a long rectangle.. so the square TT manifold won't work for you. :'(
Pardon my ignorance, but what exactly does that mean?
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The exhaust outlet side of the K03 turbo is a different shape (rectangular) than the other turbos VW used.. K14, T2, T3, which have a square outlet.
Based on the pictures that I saw the AAZ TT downpipe is expecting the K14 turbo with its square outlet. Certainly worth confirming before you order.
This thread starts with a picture of the K03 rectangular outlet:
http://www.vwdiesel.net/forum/index.php?topic=25854.0
Whereas about 2/3 of the way down this thread you'll see a side view of the K14 square outlet:
http://forums.vwvortex.com/showthread.php?4726902
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ah, okay. Damn.
That flange reminds me of the ones on Subaru turbos.
Is it as simple as grabbing up a different turbo? or are the intake manifold and exhaust manifold diff as well?
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Intake's the same, but the K14 uses a different exhaust manifold (same one as the T2/T3/K24) and probably different oil lines as well...perhaps someone else will chime in.
Unfortunately you really did get the odd ball turbo.
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Maybe I will work with it until it craps out on me or something. It does have the down pipe with it.
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It does have the down pipe with it.
Sounds like a plan... lotta work to shift to a different turbo, and you should be able to find a muffler shop that can work with your existing downpipe?
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If the stock down pipe will fit in the rabbit (mk1) then the rest of the exhaust could be attached to it no problem.
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Correct, just a rear muffler is needed
To change to a different turbo:
intake manifold will change
intake snorkel is different 1.85 KO3 , K14 is 2.33 I.d.
( I make both snorkel's and Turbo Duct's )
turbo to intake manifold duct is different
Downpipe is different
Good Luck