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Its been a while since I purchased a project car, so I thought I'd go for broke and try something I've been wanting to do for such a long time: Build a replica of the Group B A2 Audi So, for starters, I had to find a car, and I could do this one of two ways: Buy a Audi Ur-Quattro which has the AWD and everything in it already DRAWBACK: They are rare as crap in the US. OR Buy an Audi Coupe GT with the body styling and add the AWD. DRAWBACK: More work and some body modification needed. So I went on the hunt, and this is what I came away with: A 1987.5 Audi Coupe GT "Special Build" It is actually fairly rare, as only around 890 of these made it to the US. Options that this had over the standard Coupe GT were: - 2.3l High Compression 10 Valve 5 Cylinder engine - 4 Wheel Disc Brakes - Power Locks - Different transmission with better gearing and better reliability - White 16 spoke aluminium wheels - A smaller 'auxiliary' radiator attached to the main one to assist in cooling So lets begin!       I picked this up in Denver for a measly $700, it came with tons of spare parts and has only a few issues. Otherwise the body and drive train are in EXCELLENT condition. CommieGIR fucked around with this message at Apr 18, 2012 around 16:37 |
| # ? Apr 18, 2012 16:08 |
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| # ? May 19, 2013 11:42 |
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Interesting motor configuration. Longitudinal FWD. I'd like to see what it looks like from underneath.
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| # ? Apr 18, 2012 16:13 |
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revmoo posted:Interesting motor configuration. Longitudinal FWD. I'd like to see what it looks like from underneath. I can't get underneath mine right now, but here are some pictures: http://vagdrivers.net/forums/lofive...php?t42817.html And here is what the Quattro drivetrain that I plan to install looks like:  A couple other things that are going to be changed: The grill and headlights are going to be replaced with a custom grill with space for the intercooler and smaller square headlights to match what the Group B cars had. CommieGIR fucked around with this message at Apr 18, 2012 around 16:25 |
| # ? Apr 18, 2012 16:22 |
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What the hell, only $700? Goddamn, that's a steal. Can't wait to see how this goes.
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| # ? Apr 18, 2012 16:27 |
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I'm surprised you're doing this, but I'm very glad you are. Some things I remember about having access to a 5000 FWD nonturbo automatic, which you no doubt already know:
 I swear those things are un-rustable, which makes your hatch cancer a little weird, but hopefully that's the extent of it. Seat Safety Switch fucked around with this message at Apr 18, 2012 around 16:43 |
| # ? Apr 18, 2012 16:39 |
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Awesome project- really looking forward to updates!
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| # ? Apr 18, 2012 16:41 |
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Seat Safety Switch posted:I'm surprised you're doing this, but I'm very glad you are. Agreed. The suspension isn't terribly different from what I can tell, the only main difference being is the bolts for the framing around the rear differential are not there, but it should be easy to add those. Otherwise the space is there in the back to add what is needed to strengthen the rear, the shock towers and springs are about the same size and utilize the same space. CIS-E does seem to be the problem, my choices are: Like you said, Megasquirt or do individual throttle bodies. My question is: Why CAN'T you play with CIS-E? It seems like its a demand based fueling system, it measures the intake air and adjusts fueling based on demand, so what would keep it from working with a Turbocharged system?
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| # ? Apr 18, 2012 16:43 |
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CIS-E would have been fine if the car in question was owned from the factory, but it seemed like at least one of the previous owners had tinkered with the fine adjustment to system fuel pressure to try and get it to warm start and idle properly. We never got it quite right, and in the end we discovered that the wiring harness was fused together into a horrendous blob, which likely didn't help. It's a fairly intensive process and parts are expensive ($90 injectors) to keep it tuned up, so converting over to generic GM parts that you can use with a Megasquirt is (what I like to pretend) a sane decision. Is your heater blower motor working? If not (and even if so) you'll want to replace that when you're taking parts out of the engine bay. Otherwise it's a heinous bitch to get in there under the rain cover.
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| # ? Apr 18, 2012 16:44 |
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Firstly, even with no regional information, I can tell you're not British due to the lack of a single Gene Hunt reference. Second, I've seen this done before, and so yes, it can be done, right down to the shortened wheelbase etc if you so wish. I believe the correct headlights to use are early VW Passat, BTW.
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| # ? Apr 18, 2012 16:45 |
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Seat Safety Switch posted:CIS-E would have been fine if the car in question was owned from the factory, but it seemed like at least one of the previous owners had tinkered with the fine adjustment to system fuel pressure to try and get it to warm start and idle properly. We never got it quite right, and in the end we discovered that the wiring harness was fused together into a horrendous blob, which likely didn't help. Sounds like the right idea, I've never messed with Megasquirt being a Diesel guy, how exactly does the system work? The heater works great by the way...hell even the AC is cold! InitialDave posted:Firstly, even with no regional information, I can tell you're not British due to the lack of a single Gene Hunt reference. Yes, I wish I was British or European, I'd have access to better scrap yards to pull from. The sad part is, the name Gene Hunt rung a bell....and then I remembered he had a Red Quattro in the show! I thought the A2s headlights looked like early model VW headlights as well, thanks for the info! CommieGIR fucked around with this message at Apr 18, 2012 around 16:50 |
| # ? Apr 18, 2012 16:46 |
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I'm not the most informed about Megasquirt, unfortunately. DJ Commie or one of the other guys who have done an MS conversion would be able to tell you more. The research I did was only preliminary. I know 034 sells/sold a lot of the parts you would use, since they also sell their standalone which might be a decent option as well. edit: I found this semi-broken page on archive.org as the original page is long gone.
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| # ? Apr 18, 2012 16:50 |
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Seat Safety Switch posted:edit: I found this semi-broken page on archive.org as the original page is long gone. That page helps a lot, actually looks EXTREMELY simple.
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| # ? Apr 18, 2012 16:56 |
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 That's one hell of a... unique.. engine bay. How does it handle with the engine on one side like that? And the timing cover is a crumple zone right?  Looking up the specs for the engine shows a pretty respectable amount of power for its size/age (134hp / 137tq). Looks like a fun project, and working a/c at that price is awesome.
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| # ? Apr 18, 2012 17:35 |
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some texas redneck posted:
See that lump next to the engine? Yeah, that's the radiator...
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| # ? Apr 18, 2012 17:43 |
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InitialDave posted:BMW cant their engines over like that too - lowers the engine a little, and if you've got the driver on the left, it should balance reasonably well. This one has that radiator and a smaller oil cooler sized additional radiator that connects to the big one to assist in cooling. It handles REALLY REALLY well. I love driving this thing. CommieGIR fucked around with this message at Apr 18, 2012 around 18:20 |
| # ? Apr 18, 2012 17:56 |
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Oh, I forgot about the whole Pentosin thing. Audi is pretty serious about using Pentosin in the power steering; do not use regular ATF. You can get some really amazing leaks otherwise.
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| # ? Apr 18, 2012 18:19 |
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Seat Safety Switch posted:Oh, I forgot about the whole Pentosin thing. Audi is pretty serious about using Pentosin in the power steering; do not use regular ATF. You can get some really amazing leaks otherwise. I completely misread that. 
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| # ? Apr 18, 2012 18:28 |
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This is an awesome thread for an awesome car. 700 dollars with working AC? Lucky bastard.
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| # ? Apr 18, 2012 18:33 |
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Slow is Fast posted:This is an awesome thread for an awesome car. 700 dollars with working AC? Lucky bastard. I've certainly paid more for non-road worthy vehicles. 
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| # ? Apr 18, 2012 18:42 |
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The offset engine thing balancing the weight of the driver is really cool.
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| # ? Apr 18, 2012 18:51 |
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I think I saw one of those in the junkyard last time I went. I took some pictures even. I know it had the same engine and I know it had AWD (I checked) and some fancy controls for the AWD on the inside. It might still be there if you need any parts.
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| # ? Apr 18, 2012 18:55 |
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CornHolio posted:I think I saw one of those in the junkyard last time I went. I took some pictures even. I know it had the same engine and I know it had AWD (I checked) and some fancy controls for the AWD on the inside. It might still be there if you need any parts. Where are you located?
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| # ? Apr 18, 2012 18:57 |
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rscott posted:The offset engine thing balancing the weight of the driver is really cool. 
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| # ? Apr 18, 2012 19:08 |
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InitialDave posted:Unfortunately, I'm British.  But I weigh a whole 160 lbs wet, so I know my gut isn't ruining the handling.
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| # ? Apr 18, 2012 19:10 |
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CommieGIR posted:Where are you located? Northern Indiana. I'll post the pictures when I get home. I don't remember exactly what it was that I was looking at. Was that engine/drivetrain used in any other Audis of the time period? edit: I think it was an Audi 80 quattro.
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| # ? Apr 18, 2012 19:15 |
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CornHolio posted:Northern Indiana. I'll post the pictures when I get home. I don't remember exactly what it was that I was looking at. Was that engine/drivetrain used in any other Audis of the time period? The drivetrains are pretty similar among all the Quattros, what was different was the differentials and gearing used. I'm going to hunt around here, if you can post the pictures you took that'd be great!
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| # ? Apr 18, 2012 19:22 |
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Huh, that's a really interesting layout. I was thinking the power would be flipped 90* with a transaxle but it looks like the engine is so far forward that you get a traditional transmission+diff. Correct?
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| # ? Apr 18, 2012 19:56 |
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revmoo posted:Huh, that's a really interesting layout. I was thinking the power would be flipped 90* with a transaxle but it looks like the engine is so far forward that you get a traditional transmission+diff. Correct? Pretty much, the front differential is in the transmission case just like a traditional FWD car and acts also as the transfer case.
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| # ? Apr 18, 2012 20:00 |
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It's pretty similar to a Subaru layout, the difference is that the Subaru flat four is something like 16" long.
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| # ? Apr 18, 2012 20:03 |
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I am excited about this project. I remember that "IN THE BEGINNING THERE WERE 5 CYLINDERS" thread a few years back, which was basically my introduction to Group B. I very much want to see you make a Group B replica with like 400 horses. I wanna hear that 5cyl roar. Are you gonna cage it and do rallycross or something?
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| # ? Apr 18, 2012 20:38 |
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Leperflesh posted:I am excited about this project. I remember that "IN THE BEGINNING THERE WERE 5 CYLINDERS" thread a few years back, which was basically my introduction to Group B. I very much want to see you make a Group B replica with like 400 horses. I wanna hear that 5cyl roar. Are you gonna cage it and do rallycross or something? It will be rallied and caged, yes indeed. I used to rally in a 1986 Subaru in Tennessee in Amateur dirt rallies, and have been ITCHING to get back into it, but in the car that was designed from the ground up to do it. CommieGIR fucked around with this message at Apr 18, 2012 around 21:16 |
| # ? Apr 18, 2012 21:07 |
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Really challenge yourself and convert it to an S1
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| # ? Apr 18, 2012 22:17 |
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Cat Terrist posted:Really challenge yourself and convert it to an S1 S1 was the Sport Body that was shorter than this, it was actually nicknamed the Shorty for its looks, I'd have to cut the body behind the driver side to make it look like an S1 But the A2 I can do! In fact that is what I am aiming for.
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| # ? Apr 18, 2012 22:20 |
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CommieGIR posted:The drivetrains are pretty similar among all the Quattros, what was different was the differentials and gearing used. Here is what they had. I'll check and see if it's still there this weekend if you need anything in particular.   
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| # ? Apr 18, 2012 23:17 |
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CornHolio posted:Here is what they had. I'll check and see if it's still there this weekend if you need anything in particular. drat, is the drive train from engine back complete?
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| # ? Apr 18, 2012 23:18 |
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CommieGIR posted:drat, is the drive train from engine back complete? It looks like it was. I snapped this blindly:  I think I see the driveshaft, differential and the axles. I'm assuming that since the shifter was still in the car that the transmission is present as well. It looked pretty complete. Still, won't know what's still there (if anything) until this weekend. I know I saw that car there on most of my trips. I think its rarity (especially around here) meant nobody needed anything off of it, so there it sat.
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| # ? Apr 18, 2012 23:29 |
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CornHolio posted:It looks like it was. I snapped this blindly: Yeah I gotta find the drive train and pull it from one around here. Looks like it will be a pretty easy job putting it in.
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| # ? Apr 18, 2012 23:34 |
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Cat Terrist posted:Really challenge yourself and convert it to an S1 No, really challenge yourself and use it as a driver, as you hunt up a '90 or '91 coupe Quattro and convert it to an S2.
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| # ? Apr 18, 2012 23:38 |
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meatpimp posted:No, really challenge yourself and use it as a driver, as you hunt up a '90 or '91 coupe Quattro and convert it to an S2. Finding a Ur Quattro for a reasonable price in the US.... Yeah, that is a challenge I would fail at. Someone offered me a '90 Quattro for $750 but he was 4 hours away.
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| # ? Apr 18, 2012 23:42 |
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| # ? May 19, 2013 11:42 |
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You are in for a world of hurt.
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| # ? Apr 19, 2012 12:51 |
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