SRS Caddy gets a new 2.0 TDI CUAA Engine! 356BHP & 470LBS/FT!!! 4Motion / DSG
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- Опубліковано 27 лип 2024
- The previous 386bhp spec of this Caddy turned out to be a little too savage. Chasing figures we pushed the setup further than we would for a regular customer which unfortunately resulted in failure.
Rather than duplicate the same spec with the same engine, we decided to use this opportunity to test the capacities of the 240bhp 2.0 BITDI CUAA engine found in the Passat and Tiguan.
We ditched the stock turbos and piezo fuel system but used the unmodified engine as the base for the build. Installing our GTD2872VK turbo kit, Stage 2 Solenoid injectors and CP3 fuel pump we manage to get a safe 356bhp & 470ft/lbs, which just goes to show how well the stock CUAA head flows in comparison to other MK6/MK7 2.0 TDIs usually limited to less than 280bhp!
Watch the video to see the differences of this engine and how we got on with the build...
Full Specs - drksi.de/caddy
SRS Automotive - / srsautomotiveltd
Previous Spec - • SAVAGE!!! 386BHP 2.0 T...
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As someone who drives a biTdi Passat, im really interested in more CUAA content.
Brilliant,loving this, can’t wait for the next part.
I was wanting to see something about this engine for ages!
Magic. Love to see that Caddy go round the track
The advantage of specialization. An intimate knowledge of all the differences between the VAG engines and how to exploit that for best results.
PS. If Sara edited this, she did a good job of cutting it at 60mph when the speedo was going round that quick 😃😃
I love this. You guys know your onions!!! Top work
Excellent, nice to see some very knowledgable skills being used.
This is awesome 👏 makes me feel lazy just bolting a ko4 to the tfsi and hitting send it on the map.🤣 I will look forward to seeing this at vanned next year 😎
This gives me so much motivation to start on my swap. CUAA crate motor been sitting in the garage almost a year now, swapping over CP3, 2260vklr, and upping the CRUA injectors 150%.
Awesome work as usual from you all!!
My goal was 300Whp, looks like I won't be too far off!
Brilliant video mate, I’ve been wanting to know more about these 2.0cr engines can we have more of this stuff? More in-depth look at heads and ports how they flow etc
Nice very nice👊💪informative vid
I‘ve got a VW Passat with the CUAA Engine and a Stage 1 tune. This car is a total sleeper and really quick on the german Autobahn 😄
Very very interesting 👌👍
Madness... I still love this vehicle!
Who cares about downshifting "5 times" when you have dsg?
following the V12 tdi project
Remember a bloke from Devon had a fabia heading to 400 bhp but kept melting bits think he swapped to petrol 1.8 t in the end were quite Smokey at the local rolling rd day I went to in 07
Be careful cutting your flange off Ryan 😂
Make a Mk7 Adaptation kit! I’d be a buyer.
you and alot of people :D
Love a big power caddy , Looks like a great laugh still a massive vag diesel fan despite the obvious environmental stigma attached nowadays .
The stigma is man made
I want to have the setup in my Touran 1t1 2.0 bkd 😍
Has anyone ever attempted to do some porting to the charge cooler? The inlet at least doesn't look like it flows particularly well.
We will try!
Nice...
your side kick..he is to quiet lol..give him a shot of adrenalin
I suddenly want to be a van driver
What's his face was like I'm not arsed I'm gonna play on my phone 🤪
He was on the laptop haha
Hey Darkside Team,
Is it possibly to put this setup on my BiTDI Passat while still keeping the emissions stuff in place? I’m living in Germany so it’s difficult to get TÜV otherwise.
I'm afraid not!
Passt 👍👍💪💪
So would the biturbo (more specifically the smaller of the two) help you at all with the low end performance if you had kept it or is it just a oem efficiency thing that needs binned?
We couldn't control 2 turbos with this ECU but it would fill the hole at the bottom end!
Excuse my ignorance but on the standard engine I thought both turbos are the same size and ran two cylinders each? Not sure there is one big one small but again I might be wrong
@@liamgreen6036 im just as ignorant but pretty sure that that kind of setup is only used for V engines etc with two heads. The “Biturbo” on the 2l 4cyl is more a “compound turbo” i think with a small feeding onto a large. Small turbo spins up faster and big turbos make top end power so its a best of both kinda situation. Hope that helps you find a better source of information.
John is correct, 2 small turbos would be laggier than 1 large. So a compound setup is even better!
@@liamgreen6036 I might be corrected on this, but it's much the same (if it is actually this same system) as a Borg Warner R2S setup, which is sequential turbos. One small for low revs, one large for higher revs, and they switch over in the 2500-3000rpm range.
You guys have incredible videos. There’s just so much information I dont know if I’m absorbing it. I bought a mk6 Golf 2.0CJAA with barely 40k miles. I’m trying to understand how it works but cant figure out where to start. I want to keep emissions so I can take it anywhere, but I also want HP gains and consistent power. My gas pedal seems too sensitive or not sensitive enough, and it jumps rpms but doesnt provide power on the low end from a stop. Is it that theres an issue somewhere, or do I really need it tuned? What can I do, where can I start? I havent found any beginner information, and forums dont seem to have patience for my questions. Thanks for your time!
If it's tuned the throttle map might be off. We have a few DPF safe options!
@@DarksideDevelopments no tune. It had an air intake on it but it was swapped out to get a warranty fix on my egr cooler. Vw said if it was tuned theyd know, or is that a myth?
One last question- how do I determine myself that parts are compatible? Part numbers, or precise measurement?
@@HorizontalCrank if it is tuned the harware number of the ecu changes from "H26" to "X26" for example, and as soon as the vehicle is connected to a dealer diagnostic machine it flags the car on the system. You can see exactly when it was tuned and if the tune was set back to stock, but it will always stay on that car's history.
If you email us a list we check for you!
Hang on so is the charge cooler water separate to the engine and turbos coolant? Like a separate loop? I gather it has its own water pump? I’ve thought about a system like this for the turbo oil system.. a separate reservoir pump lines cooler and thermostat, I figured if you had a separate oil system for the turbo it would stay a lot cleaner and be much better for the turbo
Yeah it's separate!
@@DarksideDevelopments brilliant I did think what use is a charge cooler if it keeps iats at 90c 🤣
off topic bt whana ask skoda vrs 2l is 242hbp any more can be obtained whit tune and not changing any parts ?
We see 220hp stock turbo. You need to change the turbo to get more.
So it's possible to bolt on CUAA bi-turbo to mk7 engine? but it need some mods to fit CUAA intake manifold to mk7 engine. But is it possible to fit CUAA head on with intake and turbo to mk7 engine?
Intake needs a lot of work. Turbo wont fit due to needing 2 oil feeds and drains. You need to use the full engine.
@@DarksideDevelopments Thank you!
@@kolyakabmx it's better make the engine swap, more "bullet proof"
Is the newest Arteon shooting brake BiTdi powered by the same engine too?
Yes
So with the stock wiring in the Passat Variant there's no way to run bigger solenoid injectors eh?
They are Piezo and quite large but the wiring is a real mess. If we started from scratch we might have used that ECU but we never wanted 2 turbos anyhow.
Hi, Bit off topic, but after installing swirl flap delete (all done correct) on CAPA V6 I get real strong engine shake at 1050~-1150~ RPM in every gear. Engine mounts confirmed good. You guys got any ideas? That normal?
Never had it before!
@@DarksideDevelopments Cheers nonetheless! Sick Caddy.^ :D
Hello! Tell me, is it possible to put this CUAA motor instead of CFCA on T6 ?
Is the fuel equipment on cuaa also bosh ?
I'm sure you could with a bit of foresight. Both have Bosch. Not sure if Turbo control or fitment will work. Lots of custom adaptations will be required I'm sure.
Is it possible to put it on a mk6 removing the water to air intercooler and using air to air?
That's our next project!
Hi dark side, I have an 08 caddy maxi, was originally a BLS engine and it threw a rod. I've recently had a bkd put in from an A3, the guy used all the steering rack and gearbox etc from the A3 but it's electric power steering. It's always heavy and abs lights are on. I was told to replace the abs module and it should fire up and start working but it never. Needs sorting, is this something you guys would be able to get sorted? Also engine has developed an overboost code, seems to drive perfect around town and then as soon as I go into 6th gear/70mph it goes into limp mode, some very slow coolant loss too could that be egr related? God knows!
Either way, I was wondering if I could get it booked in for a few days and maybe I could get a hotel for a few nights as I'm from Coventry, but I just really want someone that knows what they're doing to work on it now! A remap whilst I'm there would also be nice!
sounds like it needs a turbo and an EGR delete. On our race cars we wire the steering straight to power and it works perfectly. Never done a BLS to BKD, this was a BJB so already had EPAS.
@@DarksideDevelopments thankyou so much for replying! It definitely needs an egr delete as the anti-shudder valve is broken and apparently a delete gets rid of the valve anyway! Turbo sounds good. Is this a kind of job that you guys would be able to take on? How would I go about booking in? 🙌😁
We could tune it once the niggles are sorted!
I got the 2021 Caddy with 2.0TDI, 122hp and 320nm. Is FWD with DSG tho. Should i remap it to ~200hp and ~500nm
We have done a few!
hello ! I got a CUAA Passat a few months ago and I want to make more power from it. Can you plz tell me what figures I can get with the stock injectors and fuel pump ? Can I just upgrade the bigger turbo and put a downpipe and get 350 hp ? Thx !
Drop us an email to sales@darksidedevelopments.co.uk with reg/vin and we can give you a quote on figures and parts needed
i would love the follow the guy who put the cuaa in the mk7. does he have any social media or youtube?
He's on TDI Club in the USA
You need 2 thing a manual transmission golf 7 and carbon clutch plate and you weel find the deal DNA 🧬 of this engine.
Can you do a passat b8 2.0 tdi 150hp project
Engine is the same as the GTD really
Been checking these cuaa out nd they aint cheap to get hold of even from a wrecker, the complete cars are still 14k plus, i imagine your lump was an import.
Yes, Germany
Hi, i have gtd CUNA 184 and i wanna get more hp… do u think its possible put turbos, injectors,pump… of CUAA engine? Thank u and greetings from Spain
Injectors are different
Are these Bi tdi reliability in general terms?
Lots to go wrong in stock form. This should be bomb proof now
Hi, I have a Passat bitdi 2016 completely stock apart from panel filter, is there anything I should keep an eye on other than regular oil changes etc?
Just drive it hard every now and then and keep it serviced!
@@DarksideDevelopments that I can do 👍🏼 thanks for the reply! I’ve had the car two years and 20k, no problems up to now touch wood. A wolf in sheep’s clothing.
Remember that timingbelt is to be changed in 120000km and not at 210000 like other diesels...had to fight whit service advisor from vw dealer whit if... belt was over driven by old owner by 50000km brobably becous it is so rare engine atleast oin finland. Btw realy weard engine that they basicly made compleatly new engine whit allmoust nothing incommon on others and then just put it in passat and nothing els.
@@uksomo it’s currently at 57000 miles so it will need doing within the next couple of years, I’ll also change the water pump at the the same time, if I keep it that is, I do like the a6 3.0 bitdi 🤣
@@uksomo tiguan and arteon have these available too (passat not anymore as far as i know)
👊🏻
the mk7 engine on the floor would that be the 2.0 150 or 184 lump?
184 but they are the same to look at
Darkside Developments which would be the more reliable, 150 or 184?
Both are the same really reliability wise!
Compared to the diameter of the exhaust tubing the flange entry looks to be a little restrictive to flow. Fantastic fabrication skills though.
What’s the max hp the stock interals can take on the 2.0 cr?
And torque
280hp and 400lbs before headwork
What shows will the Caddy be at? I'd pay the admission just for that...
Not sure just yet!
@@DarksideDevelopments If you could let me know when you do...I want to spend the day staring at the 4wd conversion!
How much smoke does it make??
Will get a video, almost none
Any dragy times? 100-200?
Not yet! We have one!
@@DarksideDevelopments Looks like it rips 👍🏻
Could you put one in a transporter t5? Cost?
Possibly, at least 8k with a used engine
With enough budget!
Squirrel!
Reyt then
It's possible swap head in cuna engine?
Totally different engine!
@@DarksideDevelopments tank you
23:48 you should of slammed your head back and said it pulls like a train
Lol, loosen the seat bolts ect
whos the mute?
Mathisse, he can talk when required
You seen Harry's Garage JCB video about hydrogen vs EV? Hydrogen is the future and can be exploded in a combustion engine.
ua-cam.com/video/19Q7nAYjAJY/v-deo.html
EV is not the future for sure