Dan's 4000CS Quattro 10VT Turbo Swap

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Re: Dan's 4000CS Quattro 10VT Turbo Swap

Postby Fattyalx » Sat Feb 27, 2016 7:54 pm

Would you be interested in selling those headlights from the 200?
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Re: Dan's 4000CS Quattro 10VT Turbo Swap

Postby TrailAgent » Sat Feb 27, 2016 8:03 pm

Possibly. I have someone interested in driver's side orange reflector that is attached to the headlight and I think the passenger side lens has a small crack. I did't look too closely at it. But, I can let you know in a few days.
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Re: Dan's 4000CS Quattro 10VT Turbo Swap

Postby TrailAgent » Sat Feb 27, 2016 8:09 pm

Quick update. My mechanic has the engine, CIS, ECU, wiring harness, etc. out of the 200. The engine has a bit of rust on it. The oil cooler lines were completely rusted and fell apart. But that appears to be the worst of it. The mechanic will be cleaning up the engine and getting it ready for the swap with new gaskets, etc. Hopefully no big surprises.
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Re: Dan's 4000CS Quattro 10VT Turbo Swap

Postby Fattyalx » Sun Feb 28, 2016 12:04 pm

TrailAgent wrote:Possibly. I have someone interested in driver's side orange reflector that is attached to the headlight and I think the passenger side lens has a small crack. I did't look too closely at it. But, I can let you know in a few days.

I just want the glass lights, I love the yellow tinted part. But If you can keep the drivers corner light that would be awesome, mines cracked sadly and I coud use that
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Re: Dan's 4000CS Quattro 10VT Turbo Swap

Postby TrailAgent » Sat Mar 05, 2016 2:00 pm

Time for an update. The 10VT engine is all cleaned up, painted with new gaskets and seals. Other than the oil cooler hoses, which are shot, the mechanic did not find too many bad surprises. Now, the 4000 is up on the lift and ready for the engine to come out. I'll try to get some pictures posted to make this thread more interesting.

Does anyone have advice on the best place (and method) to put the intercooler?
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Re: Dan's 4000CS Quattro 10VT Turbo Swap

Postby type85 » Sat Mar 05, 2016 5:15 pm

PICS!!!!!! :twisted:
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Re: Dan's 4000CS Quattro 10VT Turbo Swap

Postby TrailAgent » Fri Mar 11, 2016 8:03 pm

old engine is out. New engine is mounted to the transmission.

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Re: Dan's 4000CS Quattro 10VT Turbo Swap

Postby TrailAgent » Thu Mar 24, 2016 9:38 pm

Acquired a UR Quattro airbox, igloo and fuel distributor. Mechanic has the turbo engine installed and the steering, suspension, exhaust and cooling systems back together. Next step is the air intake/fuel distribution, and then on to the ECU wiring.

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Re: Dan's 4000CS Quattro 10VT Turbo Swap

Postby DE80q » Thu Mar 24, 2016 9:47 pm

Nice find on the UrQ air box and igloo. I could be wrong here, but I believe you need to use the fuel distributor from the 200 to make this engine work correct.
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Re: Dan's 4000CS Quattro 10VT Turbo Swap

Postby TrailAgent » Fri Apr 01, 2016 3:31 pm

Progress! All that is left is the ECU wiring, intercooler and misc hoses and such.

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Plan is to mount a Porsche 944T intercooler behind a replica Audi Quattro A2 grill.

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ImageA2 Grill by TrailAgent, on Flickr
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Re: Dan's 4000CS Quattro 20vt Turbo Swap

Postby AngryTaco » Fri Apr 01, 2016 10:59 pm

DE80q wrote:Nice find on the UrQ air box and igloo. I could be wrong here, but I believe you need to use the fuel distributor from the 200 to make this engine work correct.



It'll work but just needs the initial CO measurement done to compensate for the different motor
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Re: Dan's 4000CS Quattro 10VT Turbo Swap

Postby TrailAgent » Sat Apr 02, 2016 1:29 pm

The plan is a well-tuned, simplified system that delivers the ideal fuel mixture at all speeds for maximum power. I would try to paraphrase what my mechanic explained to me, but I would probably mess it up. If the basic CIS system doesn't work, then we can put the 200 fuel distributor on.
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Re: Dan's 4000CS Quattro 10VT Turbo Swap

Postby TrailAgent » Fri Apr 08, 2016 11:37 am

Wiring is 95% done. Porsche 944 intercooler is getting installed in the next several days. Perhaps another week and it will be finished.

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Re: Dan's 4000CS Quattro 10VT Turbo Swap

Postby TrailAgent » Mon Apr 11, 2016 11:36 am

The mechanics are essentially finished!

Picked up the car from the mechanic and drove it to work. The mechanic estimates 200 HP, and it definitely feels like it. There doesn't seem to be a limit to the power and pull in 3-5 gears.

But, there is still lots to do. The mechanic found a very minor crack in the exhaust manifold, I need a custom pipe for the intercooler, the suspension parts needs to be installed and I need some custom exhaust work done. But, now that the car is back in my hands, I can start having fun driving and tinkering.

I'll post some final pictures and perhaps a video soon!
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Re: Dan's 4000CS Quattro 10VT Turbo Swap

Postby TrailAgent » Mon Apr 11, 2016 8:00 pm

Now that I have the car back, its time for some photo updates:

First, the Porsche 944 intercooler. I need to get some custom pipe made for a better fit on the right hand side of the motor. The silicone elbow is pressed up against the power steering pump. the intercooler was a lot easier to mount than the stock Audi 200 Intercooler. Only the hood release lever and center vertical brace needed to be cut. Mounting brackets are solid.

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Re: Dan's 4000CS Quattro 10VT Turbo Swap

Postby TrailAgent » Mon Apr 11, 2016 8:07 pm

So, the big mystery is the PCV valve and the cold start problem. This was a known problem with the donor Audi 200 but my mechanic thought it would sort itself out. But, the swapped engine is a PIA to cold start. It really takes some coaxing with the throttle and starter. We thought it was this odd cone filter fitted where the PCV value should go. But, when the mechanic put the proper PCV valve in its place, the car belched smoke out of the exhaust. So, he put the cone filter on and was able to start the engine.

Does any one have any ideas on why this cone filter is working?

Second problem is leaking fuel injectors. This is probably the root cause of the cold start problem, but the mechanic didn't use Audi 200 injectors or fuel system. Any idea on why the fuel injectors leak?

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Re: Dan's 4000CS Quattro 10VT Turbo Swap

Postby AudiSport4000 » Mon Apr 11, 2016 8:35 pm

Did you replace the seals on the injectors, or test the spray pattern before installing? I'd start there and check both.

Did you ever find a spare oil cooler set up? I've had one kicking around that needs a home if you have not.
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Re: Dan's 4000CS Quattro 10VT Turbo Swap

Postby TrailAgent » Mon Apr 11, 2016 8:50 pm

Yes, the mechanic tested the seals and injectors. We had three sets to choose from, Audi 200, UR Quattro and Audi 4000. Of the bunch, the Audi 4000 injectors were the cleanest. But, the way my mechanic explained it, the injectors are leaking fuel into the interior of the intake manifold/engine, not on the exterior around the seals, if that makes sense.

I was able to get an oil cooler. Thanks for asking.
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Re: Dan's 4000CS Quattro 10VT Turbo Swap

Postby LeafBox » Wed Apr 13, 2016 12:35 am

Since you're running the old K-jet system, an open crankcase breather is a no-no. They don't like that at all. On my old NG I couldn't even pull out the dipstick and the car would die.
It has something to do with the vacuum helping out lifting the fuel-meter, so if I where you I'd reconnect those as they should be...

The injectors have 2 o-rings. A big and a small one, none of them stops a fuel leak, they only stop air sneaking in through the seat as far as I can tell...
Can't really do much about a leaky injector other than maybe try some of that injector cleaner? If you have them out it's probably easier to just put the tip in like diesel maybe? (Remove the o-rings first)
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Re: Dan's 4000CS Quattro 10VT Turbo Swap

Postby 88a5tq » Wed Apr 13, 2016 6:26 am

All the injectors are leaking? I don't know kjet so I can't definitively point to the fuel resting pressure adjustment. Can anyone confirm?
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Re: Dan's 4000CS Quattro 10VT Turbo Swap

Postby TrailAgent » Wed Apr 13, 2016 7:53 am

When the mechanic connected the hose from the crankcase to the intake igloo with a PCV valve, smoke belched out of the exhaust. So, either engine pressure was too low to open the PCV valve, or the PCV valve was defective or I shouldn't use a PCV valve.

Would using a hose without a PCV valve be a major problem? If I don't use a PCV valve is there an inexpensive solution to avoid oil vapor from condensing in the intake when the engine is off?

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Re: Dan's 4000CS Quattro 10VT Turbo Swap

Postby DE80q » Wed Apr 13, 2016 8:08 am

You really need the PCV system hooked up. CIS is very picky, and looks at the little filter on the back on the valve cover as a vacuum leak. Now that you are driving it, do you notice that filter getting wet? I would try getting it hooked back up with a catch can. It actually sounds like the engine needs new rings, that's a lot of blow by to be causing smoke from the exhaust.
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Re: Dan's 4000CS Quattro 10VT Turbo Swap

Postby viridia » Wed Apr 13, 2016 8:12 am

Run a hose without a PCV. Was using the Urq hose on mine:

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Re: Dan's 4000CS Quattro 10VT Turbo Swap

Postby DE80q » Wed Apr 13, 2016 8:18 am

viridia wrote:Run a hose without a PCV. Was using the Urq hose on mine:

Image

HEY! I remember reading about those fuel lines. How well did they hold up?
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Re: Dan's 4000CS Quattro 10VT Turbo Swap

Postby viridia » Wed Apr 13, 2016 8:28 am

DE80q wrote:HEY! I remember reading about those fuel lines. How well did they hold up?

Hah, they work just fine. Driven roughly 10k with them, though removed now awaiting the EFI stuff. Had my fun with CIS!
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