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another S2 conversion

Posted: Wed May 07, 2014 7:14 pm
by varia
1991 Audi Coupe quattro black on black with 117K miles

Purchased this coupe on January of 2013 from Chris M. in San Francisco, he was the second owner of the car, at one point the car was stolen from him, lightly vandalized (scratched paint, cut-ed leather seats), found than returned. Upon recovery the car was repainted in 2003 to Espresso Mocha Black 033, covered and storaged in a warehouse for 10 years. This is how I got it:

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During the last year I was collecting parts, information to be ready when the time will come.
Looks like I will be able to pull the engine out today and in the next few week I will be installing the new one

Build Details
Engine:
AAN/3B Engine Stock Internals Head/Block – Rebuilt to OEM specs
OEM LHD S2 ABY engine harness, no slice and dice (imported from Europe)
Fresh MLS Head Gasket
MTM Stage 1 280hp Chipset
034 High Output 034EFI DIS coils
Magnecor LS2 Wire Set
New Spec Stage 3 Clutch
034 Poly Snub Mount
S2 ABY Intercooler (imported from Europe)
S2 ABY Cross-member (imported from Europe)
Battery relocated (to trunk storage area) with OEM Audi RS6 harness
Turbo Smart adjustable diverter valve
7a fuel pressure regulator
AAN injectors
500W Fan (and harness modifications to support)
Custom Radiator Shroud
New Roose Motorsport Silicone Coolant Hose Set (all)
New 034 Silicone Boost Hose Set
034 down-pipe
Vacuum booster brake conversion

Suspension/Drivetrain:
Stock 01A transmission
New Spec Stage 3 Clutch
New Koni adjustable shocks
2Bennett coil-overs
New Sachs top mount with VAP mount saver
New PowerFlex Control Arm Bushings
New Tie rod ends
New Sway bar end links
New Ball joints
Original S2 5-lug Hub Conversion front
Audi B5 A4 rear hub (because needed the extra 8mm offset for the brake)

Brake; Front:
Porsche 993 Turbo (Big Red) 4-piston caliper
Porsche 993tt/GT-3 322x32mm rotor w/ BIRA rotor hat
RS2 front caliper bracket
Rear:
Audi urS4/6 rear calipers
Audi B5 S4 rear caliper brackets
Audi B5 S4 rear vented brake disk
*(Porsche Boxter S Calipers; BIRA caliper brackets; Audi D2 A8 brake disk)

Chassis:
New PowerFlex Delrin Rear Diff Mount
New 034 Aluminum Sub frame Mounts
New 034 Density Line Motor Mounts
New OEM Transmission Mounts (front and rear)
S2 Strut Brace Mounts and Crossbar

Body/Exterior:
New paint job in 2003 Color: Espresso Mocha Black 033 (Car was parked inside and cover since then)
B4 Hood Conversion
S2 Headlights with 35W HID ballasts on low
S2 Front Bumper (imported from Europe)
S2 Rear Bumper (imported from Europe)
Euro License Plate Surround (imported from Europe)

Interior:
Factory Black Leather Seats in excellent condition
3 Spoke S-line Steering Wheel
VDO Boost Gauge (OEM style)
European door cards with trim
Digital Climate Control Unit (more control and reliability over stock electronic CC)
New heater core
DS Parcel Shelf conversion

I would like to say thank you for the support Ive got, especially to Greg W., Dave (hybrid_hatch), Chris and Nelson Serrano and of course for this forum and motorgeek as well. And not for last to my Gf, she is wonderful, helps and support my toy. Actually She gives me a hand with the tools, troubleshoot and provide good food :) Thank you!
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More pictures: http://quattro4life.com/images/project

Chris

Re: another S2 conversion

Posted: Wed May 07, 2014 7:27 pm
by scubadave
Nice Chris, looking forward to seeing this car in action, possibly for the next Vegas event. we need more coupes to show up and rep. mine and one other were the only 2 last year. I'm in the midst of my (hopefully) last upgrade/ reengineering run.

that one is in very nice shape by the looks of it. nice score. bet it wasn't cheap to procure.

Re: another S2 conversion

Posted: Thu May 08, 2014 10:56 am
by Dave
Tear out that lump! you can be up and running in a week!

Re: another S2 conversion

Posted: Thu May 08, 2014 3:02 pm
by PRY4SNO
Nice find, looks like a real cherry :)

Couple questions:

-- Do you have any info or more pics on the paint? I'm trying to find the perfect shade of black for a respray and wonder how that shade looks in daylight, shadow, indoors, etc.

-- We both used identical parts for brakes. Have you installed a brake bias controller? The rears are going to lock up before the front as it sits now.

Re: another S2 conversion

Posted: Sat May 10, 2014 9:01 am
by varia
i dont have other good pictures about the paint. Its an excellent paint, but I never would paint an audi to a mercedes color.
Its very interesting with the rear brake. Friend of mine has a same setup on his 90, he has no problem with it. And I think Peter Antonic had a same setup.

Yesterday was a productive day the old engine is out
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Re: another S2 conversion

Posted: Sat May 10, 2014 9:45 pm
by pete82
nice looking car

Re: another S2 conversion

Posted: Sat May 10, 2014 11:48 pm
by araipilot
Looks like a beautiful starting point. If you have questions about the conversion let me know I have done this and it can be one lengthy project.. Best of luck

Re: another S2 conversion

Posted: Sat May 10, 2014 11:57 pm
by varia
araipilot wrote:Looks like a beautiful starting point. If you have questions about the conversion let me know I have done this and it can be one lengthy project.. Best of luck


Thx! Are you here in CA?

getting ready, mabe mid next week I install it

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Re: another S2 conversion

Posted: Sun May 11, 2014 5:53 pm
by araipilot
No I am in Utah. You can check out my build under my user name to see what steps I have taken if you need any information or direction.

Re: another S2 conversion

Posted: Tue May 13, 2014 10:06 pm
by Afterthought
Looking good. Like the paint. Looks like you have done your research.
Are you going with a 3B intake manifold or AAN, or something else?

Re: another S2 conversion

Posted: Tue May 13, 2014 11:46 pm
by varia
Afterthought wrote:Looking good. Like the paint. Looks like you have done your research.
Are you going with a 3B intake manifold or AAN, or something else?


3B intake
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Today I removed the old harness and pulled the ABY harness to the engine bay.
Also installed the vacuum booster, and the new line for the power steering, no more brake bomb :foff:

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Re: another S2 conversion

Posted: Wed May 14, 2014 2:22 am
by Afterthought
varia wrote:3B intake
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Today I removed the old harness and pulled the ABY harness to the engine bay.
Also installed the vacuum booster, and the new line for the power steering, no more brake bomb :foff:


Looks great! Sorry didn't realize I could've answered that question myself, the pictures werent loading and I though the links were bad, turns out it was my computer, now I see the pics with intake.
Where did you get the brake booster? And using the stock CQ rack?
Looks like we are tackling alot of the same things, I deleted the Bomb and the ABS... going the AAN intake route though.

Re: another S2 conversion

Posted: Wed May 14, 2014 11:16 am
by audifreakjim
Looks good Chris. How about you bring this to battle born :)

Re: another S2 conversion

Posted: Wed May 14, 2014 10:43 pm
by varia
I used a B3 (1988 audi 80) vacuum booster, but any B4 booster would work, but they are an inch bigger.
(Ive rear somewhere that the later audi model dual diaphragm vacuum booster works too.)
Yes, im using stock CQ rack with B4 PS pump, hose. But im keeping the ABS for now.

Yes Jim, that the plan!

Re: another S2 conversion

Posted: Mon May 26, 2014 10:37 pm
by varia
aint that sexy?

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Re: another S2 conversion

Posted: Tue May 27, 2014 11:14 am
by my2000apb
varia wrote:I used a B3 (1988 audi 80) vacuum booster, but any B4 booster would work, but they are an inch bigger.
(Ive rear somewhere that the later audi model dual diaphragm vacuum booster works too.)
Yes, im using stock CQ rack with B4 PS pump, hose. But im keeping the ABS for now.

Yes Jim, that the plan!


the b4 boosters are WIDER but they also don't stick out into the bay as far either :)

Re: another S2 conversion

Posted: Tue May 27, 2014 11:35 am
by Hank
Winning. Bring this to BBQ. I wanna see it in person

Re: another S2 conversion

Posted: Tue May 27, 2014 4:29 pm
by glibobbo21
if you want to see how the b4 is different look at my 84 07k bay. its quite a damn bit different.

Re: another S2 conversion

Posted: Wed May 28, 2014 10:52 pm
by varia
I dont think it sticks out far.

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Someone asking about the tranny/clutch
Its a stock CQ tranny 01A
Spec stage 3 clutch
7A flywheel

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Re: another S2 conversion

Posted: Thu May 29, 2014 7:42 am
by DE80q
Thats the same clutch/flywheel setup I have in my 20vt swap. It is quite grabby and took a little getting used to.

Keep pushing forward on it, seems to be moving along quickly

Re: another S2 conversion

Posted: Tue Aug 05, 2014 8:48 pm
by varia
I was super busy in the last 2.5-3 months but finally now i have a little time.

Installed the power steering lines
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and worked on the front a bit
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Re: another S2 conversion

Posted: Thu Aug 07, 2014 10:55 pm
by varia
Had a few hours to work on my babe:

Modified the coolant pipe (is a cq pipe with a nipple on it)
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I had to modify the 3B 200 vt intake pipe too, since my inter-cooler and pipes from ABY.
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Also done a lot of electrical work, getting closer and closer
Chris

Re: another S2 conversion

Posted: Thu Sep 04, 2014 10:26 pm
by varia
Car fired up after a few hours of fighting with the immobilizer

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http://quattro4life.com/images/project/start.mov

Re: another S2 conversion

Posted: Fri Sep 05, 2014 12:28 am
by Hank
Are you bringing this out for BBQ?

Re: another S2 conversion

Posted: Fri Sep 05, 2014 8:24 pm
by varia
Hank wrote:Are you bringing this out for BBQ?


thats the plan, but still a lot needs to be done and not much time...