Digital Corpus
Top Post Dawg
For current status/progress, click me!
A compiled chart of significant dynos I've run for this car:
The primary reason I decided to go this particular upgrade route was to minimize critical component fabrication. The parts I consider on this list are intercooler, intercooler piping, exhaust manifold, engine mounts, engine mount brackets, and even head bolts. Anything that can be purchased outright as a stock component, albeit from another VW/Audi/Brand, isn't considered such a component. The goal was to keep this simple and cost effective since I didn't want to dump $10K into the car nor break something in the process. So far, my most significant failure is a head gasket. Anything else I could do myself because it doesn't require precision machinery or a plethora of experience I've chosen to do, despite the time and associated learning curve. I think it pays off when you improve upon stock balance of piston & con rod weight differentials by an order of magnitude and your tuner tells you that your turbo is spooling faster than one two "sizes/stages" smaller than it.
I've taken the car down 4 times for completing performance related upgrades or repairs.
November 28th, 2012:
Mechanical work completed by BioChoppers with assistance from of a couple of friends, temporaptor, kooyajerms, swtlowtdi.
Thanksgiving, 2013:
In order to drive the car without having to worry about exploding engine bits, a number of support mods were done in conjunction with the engine rebuild:
Late December 2014 to June 2015:
Misc changes and updates as I've learned more about how to have the car setup properly
November 2015 to April 2018:
May 2018 to Present:
Photo Index
Not every photo is listed when there is a set of them in a single post, however the most significant will be in the Small and Large links.
ARL Pistons
Oil Squirter Adjustments
Rods & Bottom end
Adjustment to Head
AFN Exhaust Manifold
Engine & Subframe removed
Initial GTB1756VK setup
Analysis of Stock Pistons
Compressor Wheel Digestion
Old Internals
Original Lifters
Connecting Rod Bearings
AFN Exhaust Manifold
GTB 1756VK hotside
Minor Head Porting
Transmission Modification
Additional Modifications
A compiled chart of significant dynos I've run for this car:
- Obviously, the "Base" tunes are my stock runs.
- The ones from 2012 are in 3rd and 4th gears when the turbo and nozzles were first installed.
- The 3rd gear pull is the lowest of the set where a heat soaked intercooler reduced my power output
- In Just 2015, 12 dyno pulls were made for the Colt against the OE cam, 2 pulls each, with advancing and retarding the camshaft 2 flywheel teeth as well as standard mechanical timing.
- I had assumed that the mid-to-high 90's that day as well as an IQ of ~6, vs an IQ of ~2 in 2012, resulted in 180-ish peak whp across the 12 dynos that day. Comparing to the 3rd gear of 2012, that seems to be the case.
The primary reason I decided to go this particular upgrade route was to minimize critical component fabrication. The parts I consider on this list are intercooler, intercooler piping, exhaust manifold, engine mounts, engine mount brackets, and even head bolts. Anything that can be purchased outright as a stock component, albeit from another VW/Audi/Brand, isn't considered such a component. The goal was to keep this simple and cost effective since I didn't want to dump $10K into the car nor break something in the process. So far, my most significant failure is a head gasket. Anything else I could do myself because it doesn't require precision machinery or a plethora of experience I've chosen to do, despite the time and associated learning curve. I think it pays off when you improve upon stock balance of piston & con rod weight differentials by an order of magnitude and your tuner tells you that your turbo is spooling faster than one two "sizes/stages" smaller than it.
I've taken the car down 4 times for completing performance related upgrades or repairs.
November 28th, 2012:
Mechanical work completed by BioChoppers with assistance from of a couple of friends, temporaptor, kooyajerms, swtlowtdi.
- Rebuilt GTB1756VK, vacuum converted by RyanP, operating @ ~24-25 psi, ~1.7 bar during the initial dynos.
- Adapter plate for turbo on AFN Manifold
- AFN exhaust manifold - Though a BHW one from the US will work just fine.
- 4-Bar replacement MAP sensor - PCB design & sensor links are in the post
- Early MKIV N75 - The early MKIV N75, 1H0906627A, has a square electrical connector that plugs straight into the B4's harness. This used one proved to fail intermittently when warmed up, such as during the initial dynos.
- 3-3.2 mm vane gap set by the stop screw.
- Race 520 nozzles
- DC Stage IV clutch replaced the planned SBC Stage II Endurance - It's a dual-sided feramic/sintered disk clutch plate, larger rivets, stronger support bolts for pressure plate, more robust pressure plate.
- 14 lb Flywheel was installed along with the upgraded clutch.
- Tiny little racepipe/hose adapter - Custom part made by JFettig.
- Vacuum ball from an MKIV's - Not sure if it's needed, but it's not hurting things.
- Tuning by Malone Tuning and TD Tuning.
Thanksgiving, 2013:
In order to drive the car without having to worry about exploding engine bits, a number of support mods were done in conjunction with the engine rebuild:
- Block overbored to 80 mm
- ARL Pistons, 79.5 mm + 0.5 mm - Initial questions, unboxing, balancing questions, initial weigh in
- I.E. Tuscan Rods "I-Beam" for those ignorant like I - Teaser photos, initial weigh in @ 70 grams lighter than Rosten I-beam rods, tapering small ends took off ~10 grams, and finally balanced the crap out of the piston + rod + bearings + wrist pins, i.e. ~0.4 gram delta, less than 0.03% difference, w/ glamor shots.
- Modified the oil squirters to work with the pistons.
- Sputter bearings for the connecting rods.
- I have since purchased and installed the cheaper, newer and more common version of the N75, saving ~$100 on a replacement when it fails.
- Colt Stage II Cam and set it up 1 flywheel tooth advance.
- 'D'-style N75 electrical terminal, PN 1J0973722 - Available and bora parts and idparts. Removed the square one on the B4's wire harness and put this on.
- Set a new 1.2 mm vane gap by the stop screw. *Edit* But I was unaware of the extra 1.2 mm of play in the system.
- Nitride lifters - Which you can just pick up from your dealer if you wish.
- Uprated dual valve springs
- Ported the head's exhaust ports, but only lightly.
- Port matched exhaust-manifold-to-adapter-plate transition and adapter-plate-to-turbo transition.
- Chamfered the 1756's hotside exhaust for the 2.5" downpipe.
- Class 12.9 head bolts vs 10.9, M12 x 1.75 x 110mm bolts for the head bolts. PN 91290A642. Keep in mind, these are shorter than stock so *do not use*.
- These washers were used to accompany the head bolts. PN 98035A107.
- Drilled 2 (5th photo) of the 3 suggested holes for oil circulation of 5th gear due to design flaw in the stock bell housing.
- Replaced oil return line (3rd photo) with something was wouldn't hemorrhage oil.
- Used a M18x1.5 to AN10 (aka 5/8" JIC), 45˚ elbow to connect the oil line to the block. Looks like there is one manufacturer for such a part, but sold through many vendors. PN is 9066-10-18.
- 12" x 2" OD aluminum pipe - Used as the turbo outlet pipe and plumbs directly into the stock IC setup.
- Found an off the shelf flange for downpipe fabrication
- And a MKIII brake line heat shield - Hot turbo means how brake line. Rather not have to deal with this and it honestly made a definitive difference.
Late December 2014 to June 2015:
Misc changes and updates as I've learned more about how to have the car setup properly
- Re-inforced Clutch Fork - the old one started showing signs of fatigue from the heavier pressure plate in only 20K miles
- Brace for Cast Pinion Support - Thread to show what is currently in the trans. USRT and VAP make one. the VAP one requires machining of the bell housing. If I'm cracking the housing or shipping it out, I'm having the entire transmission looked over…
- 1.6-1.8 mm vane gap
- Bolt/Fastener + rust caused by the minor leak from my head gasket. This lead to seeing proof that Class 12.9 steel is strong enough for ~240 whp applications, thus ARP studs needn't be a necessary upgrade for those shooting for lower.
- M12 x 1.75 x 120 mm bolts which have 24 mm vs 14 mm thread engagement compared to 110 mm bolts. They're only 5 mm longer than stock and won't bottom out. PN 91290A643
- Additional Head Roll Pins & HG Sealing - sexy metal flake finish!
- EGR Boost Leak & Oil Leak Fix - I'm buying an OE steel version next. Also, even after a copper gasket was made to seal the oil return line on the turbo, it still leaked. It's possible the makeshift line wasn't actually the cause in the first place, but I'll never know though.
- Adjusted cam timing - more details to come and I'd love to try this on the dyno
. Update Tested on dyno! TDI Meister's research part 1, part 2, Kerma's information. - Currently playing with the fuel pump. More to come...
November 2015 to April 2018:
- Re-did vacuum system to support vaccum-actuated turbos. Response time rivals electronic actuators. This was accompanied by physically and electrically swapping the EGR & VNT solenoids (N75 & N18).
- Started working on evaporative cooling for my intercooler.
- Cleaned up the turbo a bit and made a spacer to remove mechanical slop in the ring system for the vanes. Still need to R&R the lever the actuator rod connects to.
- Set screw set to create a 1.2 mm nominal vane gap.
- Set screw being left at minimal opening or ~0.2 mm nominal.
- Swapped out the thermistor in my IAT for a new one and adjusted the tune to match its characteristics after a touch of reverse engineering. It responds no less than 4x faster than stock.
- IP tweaks, hacks, hybridization on hold until turbo & vacuum system is sorted.
- 'Calibrated', i.e. lets average all test equipment I have, my boost and barometric pressure sensors and IAT sensor.
- Tweaking the tune in small, appreciably nit-picky ways like playing with reduced start fuel, adjusting N75 Map, adjusting boost map, adjusting N75 PID characteristics.
May 2018 to Present:
- Ordered new cage and vanes assembly for GTB1756VK
- Set screw set to create a 1.1-1.2 mm nominal vane gap.
- Installed new, faster EGT and developed a high(er) temporal resolution method of logging its data.
- *Need* to relocate EGR probe from exhaust manifold collector to proximal to the vanes.
- Commencement of the test-and-adjust self-tuning phase of vane control and EGT control.
- Began modding Measuring Blocks for custom output like Volumetric Efficiency.
Photo Index
Not every photo is listed when there is a set of them in a single post, however the most significant will be in the Small and Large links.
ARL Pistons
Code:
[URL="http://forums.tdiclub.com/showpost.php?p=4355377"]Post[/URL] [URL="http://forums.tdiclub.com/showthread.php?p=4341648#post4341648"]Post in Thread[/URL]
Unboxing [URL="http://forums.tdiclub.com/showpost.php?p=4355377"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Pistons/_OB_9315-hi.jpg"]Large[/URL]
ARL balancing [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Pistons/Removal-Top-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Pistons/Removal-Top-hi.jpg"]Large[/URL] [URL="http://forums.tdiclub.com/showpost.php?p=4383955&postcount=1"]Post[/URL] [URL="http://forums.tdiclub.com/showthread.php?p=4383955#post4383955"]Post in Thread[/URL]
Code:
[URL="https://forums.tdiclub.com/showpost.php?p=4433192&postcount=235"]Post[/URL] [URL="https://forums.tdiclub.com/showthread.php?p=4433192#post4433192"]Post in Thread[/URL]
Stock placement [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Block/_OB_9607-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Block/_OB_9607-hi.jpg"]Large[/URL]
Adjusted [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Block/_OB_9586-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Block/_OB_9586-hi.jpg"]Large[/URL]
Code:
I.E. Tuscan Rods [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Block/_OB_9323-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Block/_OB_9323-hi.jpg"]Large[/URL] [URL="https://forums.tdiclub.com/showpost.php?p=4355376&postcount=83"]Post[/URL] [URL="https://forums.tdiclub.com/showthread.php?p=4355376#post4355376"]Post in Thread[/URL]
Pistons + Rods [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Pistons/_OB_9562---enfuse-0.45-0.25-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Pistons/_OB_9562---enfuse-0.45-0.25-hi.jpg"]Large[/URL]
ARL in 1Z block [URL="http://mobrienphotography.com/Misc-Pics/TDI-Pics/Strengthening/Block/_OB_9818---enfuse-0.55-0.4-low.jpg"]Small[/URL] [URL="http://mobrienphotography.com/Misc-Pics/TDI-Pics/Strengthening/Block/_OB_9818---enfuse-0.55-0.4-hi.jpg"]Large[/URL] [URL="https://forums.tdiclub.com/showpost.php?p=4420360&postcount=198"]Post[/URL] [URL="https://forums.tdiclub.com/showthread.php?p=4420360#post4420360"]Post in Thread[/URL]
Botton end installed [URL="http://mobrienphotography.com/Misc-Pics/TDI-Pics/Strengthening/Block/_OB_9811-low.jpg"]Small[/URL] [URL="http://mobrienphotography.com/Misc-Pics/TDI-Pics/Strengthening/Block/_OB_9811-hi.jpg"]Large[/URL]
Code:
[URL="https://forums.tdiclub.com/showpost.php?p=4798138&postcount=295"]Post[/URL] [URL="https://forums.tdiclub.com/showthread.php?p=4798138#post4798138"]Post in Thread[/URL]
Old vs New [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Head/_OB_8610-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Head/_OB_8610-hi.jpg"]Large[/URL]
Bowled old washer [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Head/_OB_8639-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Head/_OB_8639-hi.jpg"]Large[/URL]
New Bolt & washer [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Head/_OB_8710-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Head/_OB_8710-hi.jpg"]Large[/URL]
Installation [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Head/_OB_8713-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Head/_OB_8713-hi.jpg"]Large[/URL]
Coated Head Gasket [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Head/_OB_8700-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Head/_OB_8700-hi.jpg"]Large[/URL]
Code:
[URL="https://forums.tdiclub.com/showpost.php?p=4040204&postcount=3"]Post[/URL] [URL="https://forums.tdiclub.com/showthread.php?p=4040204#post4040204"]Post in Thread[/URL]
Bottom [URL="http://pics.tdiclub.com/data/5768/medium/MG_5586-hi.jpg"]Small[/URL] [URL="http://pics.tdiclub.com/data/5768/MG_5586-hi.jpg"]Large[/URL]
Closeup - PN [URL="http://pics.tdiclub.com/data/5768/medium/MG_5591-hi.jpg"]Small[/URL] [URL="http://pics.tdiclub.com/data/5768/MG_5591-hi.jpg"]Large[/URL]
Closeup - EGR [URL="http://pics.tdiclub.com/data/5768/medium/MG_5594-hi.jpg"]Small[/URL] [URL="http://pics.tdiclub.com/data/5768/MG_5594-hi.jpg"]Large[/URL]
Closeup - right [URL="http://pics.tdiclub.com/data/5768/medium/MG_5596-hi.jpg"]Small[/URL] [URL="http://pics.tdiclub.com/data/5768/medium/MG_5596-hi.jpg"]Large[/URL]
Closeup - left [URL="http://pics.tdiclub.com/data/5768/medium/MG_5597-hi.jpg"]Small[/URL] [URL="http://pics.tdiclub.com/data/5768/MG_5597-hi.jpg"]Large[/URL]
Code:
[URL="https://forums.tdiclub.com/showpost.php?p=4358916&postcount=101"]Post[/URL] [URL="https://forums.tdiclub.com/showthread.php?p=4358916#post4358916"]Post in Thread[/URL]
Engine Bay [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9346-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9346-hi.jpg"]Large[/URL]
Front of ‘stock’ engine [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9341-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9341-hi.jpg"]Large[/URL]
Back of ‘stock’ engine [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9339-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9339-hi.jpg"]Large[/URL]
Code:
[URL="https://forums.tdiclub.com/showpost.php?p=4358917&postcount=102"]Post[/URL] [URL="https://forums.tdiclub.com/showthread.php?p=4358917#post4358917"]Post in Thread[/URL]
Return line leak [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9331-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9331-hi.jpg"]Large[/URL]
Oily mess [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9368-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9368-hi.jpg"]Large[/URL]
GTB heatsheild stub [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9385-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9385-hi.jpg"]Large[/URL]
Code:
[URL="https://forums.tdiclub.com/showpost.php?p=4360551&postcount=109"]Post[/URL] [URL="https://forums.tdiclub.com/showthread.php?p=4360551#post4360551"]Post in Thread[/URL]
"Fresh" stock pistons [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9422-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9422-hi.jpg"]Large[/URL]
Piston 1 in block [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9402-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9402-hi.jpg"]Large[/URL]
Piston 2 in block [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9398-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9398-hi.jpg"]Large[/URL]
Piston 3 in block [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9397-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9397-hi.jpg"]Large[/URL]
Piston 4 in block [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9396-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9396-hi.jpg"]Large[/URL]
Code:
[URL="https://forums.tdiclub.com/showpost.php?p=4360555&postcount=111"]Post[/URL] [URL="https://forums.tdiclub.com/showthread.php?p=4360555#post4360555"]Post in Thread[/URL]
All 4 [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9414-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9414-hi.jpg"]Large[/URL]
Hash of cylinder 4 [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9393-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9393-hi.jpg"]Large[/URL]
Cylinder 1 [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9400-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9400-hi.jpg"]Large[/URL]
Cylinder 2 [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9403-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9403-hi.jpg"]Large[/URL]
Cylinder 3 - No photos
Cylinder 4 [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9394-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9394-hi.jpg"]Large[/URL]
Code:
[URL="https://forums.tdiclub.com/showpost.php?p=4361880&postcount=132"]Post[/URL] [URL="https://forums.tdiclub.com/showthread.php?p=4361880#post4361880"]Post in Thread[/URL]
Pistons + Rods [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9437-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9437-hi.jpg"]Large[/URL]
Piston 1 [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9454-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9454-hi.jpg"]Large[/URL]
Piston 2 [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9455-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9455-hi.jpg"]Large[/URL]
Piston 3 [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9456-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9456-hi.jpg"]Large[/URL]
Piston 4 [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9457-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9457-hi.jpg"]Large[/URL]
Code:
[URL="https://forums.tdiclub.com/showpost.php?p=4361944&postcount=134"]Post[/URL] [URL="https://forums.tdiclub.com/showthread.php?p=4361944#post4361944"]Post in Thread[/URL]
Cylinder 1 [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9429-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9429-hi.jpg"]Large[/URL]
Cylinder 2 [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9430-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9430-hi.jpg"]Large[/URL]
Cylinder 3 [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9431-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9431-hi.jpg"]Large[/URL]
Cylinder 4 [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9434-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9434-hi.jpg"]Large[/URL]
Intake Cyl 4 Cam [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9463-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9463-hi.jpg"]Large[/URL]
Code:
[URL="https://forums.tdiclub.com/showpost.php?p=4361954&postcount=136"]Post[/URL] [URL="https://forums.tdiclub.com/showthread.php?p=4361954#post4361954"]Post in Thread[/URL]
Top Bearings [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9470-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9470-hi.jpg"]Large[/URL]
Bottom Bearings [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9477-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9477-hi.jpg"]Large[/URL]
Code:
[URL="https://forums.tdiclub.com/showpost.php?p=4364194&postcount=146"]Post[/URL] [URL="https://forums.tdiclub.com/showthread.php?p=4364194#post4364194"]Post in Thread[/URL]
Bad turbo sealing [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Porting/_OB_9484-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Porting/_OB_9484-hi.jpg"]Large[/URL]
AFN E.M. nub [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Porting/_OB_9486-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Porting/_OB_9486-hi.jpg"]Large[/URL]
AFN port matching [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Porting/_OB_9498-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Porting/_OB_9498-hi.jpg"]Large[/URL]
AFN EGR lip delete [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Porting/_OB_9504-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Porting/_OB_9504-hi.jpg"]Large[/URL]
GTB port matching [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Porting/_OB_9496-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Porting/_OB_9496-hi.jpg"]Large[/URL]
Code:
[URL="https://forums.tdiclub.com/showpost.php?p=4364196&postcount=147"]Post[/URL] [URL="https://forums.tdiclub.com/showthread.php?p=4364196#post4364196"]Post in Thread[/URL]
1st pass w/ carbide [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Porting/IMG_1427-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Porting/IMG_1427-hi.jpg"]Large[/URL]
Depth notches [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Porting/_OB_9525-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Porting/_OB_9525-hi.jpg"]Large[/URL]
Final result [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Porting/_OB_9530-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Porting/_OB_9530-low.jpg"]Large[/URL]
Code:
[URL="https://forums.tdiclub.com/showpost.php?p=4398070&postcount=164"]Post[/URL] [URL="https://forums.tdiclub.com/showthread.php?p=4398070#post4398070"]Post in Thread[/URL]
Stock head [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9405-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Disassembly/_OB_9405-hi.jpg"]Large[/URL] [URL="https://forums.tdiclub.com/showpost.php?p=4360593&postcount=119"]Post[/URL] [URL="https://forums.tdiclub.com/showthread.php?p=4360593#post4360593"]Post in Thread[/URL]
Strapped down [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Head/_OB_9581-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Head/_OB_9581-hi.jpg"]Large[/URL]
Before vs After [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Head/_OB_9578-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Head/_OB_9578-hi.jpg"]Large[/URL]
Cyl 1 exhaust final [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Head/_OB_9629-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Head/_OB_9629-hi.jpg"]Large[/URL]
Cyl 2 exhaust final [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Head/_OB_9631-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Head/_OB_9631-hi.jpg"]Large[/URL]
Cyl 3 exhaust final [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Head/_OB_9637-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Head/_OB_9637-hi.jpg"]Large[/URL]
Cyl 4 exhaust final [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Head/_OB_9638-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Head/_OB_9638-hi.jpg"]Large[/URL]
Nitride coated VW lifters [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Head/_OB_9318-low.jpg"]Small[/URL] [URL="http://mobrienphoto.com/Misc-Pics/TDI-Pics/Strengthening/Head/_OB_9318-hi.jpg"]Large[/URL] [URL="https://forums.tdiclub.com/showpost.php?p=4342262&postcount=82"]Post[/URL] [URL="https://forums.tdiclub.com/showthread.php?p=4342262#post4342262"]Post in Thread[/URL]
Code:
[URL="https://forums.tdiclub.com/showpost.php?p=4699679&postcount=271"]Post[/URL] [URL="https://forums.tdiclub.com/showthread.php?p=4699679#post4699679"]Post in Thread[/URL]
5th gear holes [URL="http://mobrienphotography.com/Misc-Pics/TDI-Pics/Strengthening/Assembly/_OB_9965---enfuse-0.3-0.35-low.jpg"]Small[/URL] [URL="http://mobrienphotography.com/Misc-Pics/TDI-Pics/Strengthening/Assembly/_OB_9965---enfuse-0.3-0.35-hi.jpg"]Large[/URL]
Reinforced clutch release [URL="http://mobrienphotography.com/Misc-Pics/TDI-Pics/Turbo/GTB1756/_OB_7924-low.jpg"]Small[/URL] [URL="http://mobrienphotography.com/Misc-Pics/TDI-Pics/Turbo/GTB1756/_OB_7924-hi.jpg"]Large[/URL]
Pinion brace [URL="http://mobrienphotography.com/Misc-Pics/TDI-Pics/Turbo/GTB1756/_OB_7943%20-%20enfuse%202-low.jpg"]Small[/URL] [URL="http://mobrienphotography.com/Misc-Pics/TDI-Pics/Turbo/GTB1756/_OB_7943%20-%20enfuse%202-hi.jpg"]Large[/URL]
Code:
Coming soon
[URL=""]Small[/URL]
[URL=""]Large[/URL]
Vacuum layout
[URL=""]Small[/URL]
[URL=""]Large[/URL]
[URL=""]Post[/URL]
[URL=""]Post in Thread[/URL]
Mini racepipe & 2-stroke downpipe
[URL=""]Small[/URL]
[URL=""]Large[/URL]
[URL=""]Post[/URL]
[URL=""]Post in Thread[/URL]
2-stroke downpipe
[URL=""]Small[/URL]
[URL=""]Large[/URL]
[URL=""]Post[/URL]
[URL=""]Post in Thread[/URL]
Mini racepipe w/ JB weld lip
[URL=""]Small[/URL]
[URL=""]Large[/URL]
[URL=""]Post[/URL]
[URL=""]Post in Thread[/URL]
Last edited:
