TDI CUA 240HP to 420HP attempt

mrchill

TDIClub Enthusiast, Super Secret Diesel Ninja Vend
Joined
Sep 16, 2003
Location
MASS! home of THE WORLD SERIES CHAMPION RED SOX! x
TDI
96 B4v red \ 98 Mk3 green\98 Mk3 Jetta black\ 99 Mk4 Jetta green x2\ 99 Mk4 Golf silver x2\ 99 Mk4 Jetta black\ 97 B4 sedan green\04 JSW gold\03 JSW silver
Good to hear that it uses better cams (and maybe better head also).

Sea level, 2.5bar (PR 3.5 compressor map), 45lbs, 75% efficiency, 180-185krpm, just edge of compressor map. 2.5bar is not enough for that power / flow.

First look that compressor map PR4 level (ideally 3bar boost at sea level)

Then think / calculate that situation when ambient pressure is 800mbar...
It uses 1mm more lift at the cam, and slightly stiffer valve springs. The head is factory gas flowed....so yes, it breathes better.
 

Syncrogreg

Vendor
Joined
Feb 22, 2010
Location
Nashville TN
TDI
2.0 TDI CR SWAP ALWAYS FOR SALE
The porting on that head is completely crazy from factory! This is why I didn't bother with the CJAA if I can make 320-350 HP out of a bone stock engine with just a turbo.... I'll be super happy ;-)
 

mickyTDI

Veteran Member
Joined
Sep 21, 2003
Location
Longford, Ireland
Nice project, following this!


I have a Passat with this engine remaped by DVX Performance in Belgium.


295hp 613Nm It drives just fantastic!!

Well hello there! I have the same car remapped, it's a beauty to drive :D I don't even miss my 300bhp 2.0 TFSI:eek:


It had a strange hic up today though, i was just cruising along slowly and it went into limp mode with a EPC light. VCDS reported too high fuel pressure, odd :confused: It has been ok since though.
 

Syncrogreg

Vendor
Joined
Feb 22, 2010
Location
Nashville TN
TDI
2.0 TDI CR SWAP ALWAYS FOR SALE
hey man, curves are looking good! do you know how much boost is applied to the stage 1 tune? i see that stock use 3.8bar absolute. i think this is great amount but was just curious if you added 0.1 0.2 or what? from stock... also I have increased power band to 5200RPM to get better gear overlap now the car really moves with no hollow power band from 3800 rpm tp 5200 rpm. AWESOME POWER!

I'm currently driving the ca with 3.9bars absolute its a rocket!!!

Thank you!







This is how power figures look stock vs very good tuned.
 
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raymor

Veteran Member
Joined
Feb 26, 2009
Location
Glasgow, Scotland
TDI
Audi A2, 2.0 VW Crafter
Really cool seeing the CUA motor going into something other than a standard car. There seems to be a few CUA's on the used market now in Europe. Is the CUA to Boxster transaxle via a bellhousing adapter or a matching of VAG patterns? Thanks
 
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Syncrogreg

Vendor
Joined
Feb 22, 2010
Location
Nashville TN
TDI
2.0 TDI CR SWAP ALWAYS FOR SALE
I have 5x complete new crate CUAA in Nashville TN.

Turn key available, Dyno tuned with race ECU or Stock OEM stage 1 for standalone use.
 

m1ketdi

Veteran Member
Joined
May 18, 2009
Location
Leam
TDI
Leon BKD
Well hello there! I have the same car remapped, it's a beauty to drive :D I don't even miss my 300bhp 2.0 TFSI:eek:


It had a strange hic up today though, i was just cruising along slowly and it went into limp mode with a EPC light. VCDS reported too high fuel pressure, odd :confused: It has been ok since though.

Can you get some vcds logs of your boost and fuel demands? :cool:
 

Syncrogreg

Vendor
Joined
Feb 22, 2010
Location
Nashville TN
TDI
2.0 TDI CR SWAP ALWAYS FOR SALE
Can you get some vcds logs of your boost and fuel demands? :cool:
I have the stage 1 logs from a tuner in Europe. 303 HP and 600NM... They are incredible numbers right from 1600 rpm all the way to 4800rpm.

I have made both the Boxeer race ECU match the stage1 numbers as a base map.

Greg
 

bigsexyTDI

Veteran Member
Joined
Sep 28, 2005
Location
Kentucky
TDI
'98 NB, '04 Jetta
Its sad to think that we wouldn't have gotten this jewel of an engine in the US even if Dieselgate hadn't happened... :(
 

Syncrogreg

Vendor
Joined
Feb 22, 2010
Location
Nashville TN
TDI
2.0 TDI CR SWAP ALWAYS FOR SALE
Well we do I have 5x of them here with option OEM ECU cracked for standalone use stage 1 or with race ECU for the crazy guys that like to push limit :)
 

turbobrick240

Top Post Dawg
Joined
Nov 18, 2014
Location
maine
TDI
2011 vw golf tdi(gone to greener pastures), 2001 ford f250 powerstroke
Very impressive Greg! I can't imagine the rush it must have been piloting that up the mountain. 11:25 is an extremely respectable time for a 2L diesel powered car.
 

Macradiators.com

Veteran Member
Joined
Nov 2, 2015
Location
Romania
TDI
2.0 CR 360hp
Great job! Need to squeeze more power out of the 2.0. So far you are not pushing it.
This should get into the 400 easy.
 

Syncrogreg

Vendor
Joined
Feb 22, 2010
Location
Nashville TN
TDI
2.0 TDI CR SWAP ALWAYS FOR SALE
Hello thanks for support! Race Was fun until lost the brakes for 45seconds!

Anyway, I'm looking to upsize the GT2052 turbo I'm using right now as High pressure. Looking for a 40mm non wastegated ( I use external wastegate) racing turbo. Any leads?

Thank you!
 
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[486]

Top Post Dawg
Joined
Mar 1, 2014
Location
MN
TDI
02 golf ALH
my td04hl-19t-5cm survived the HP wastegate line falling off
the intake manifold did not, 1/8" aluminum sheet looks like a balloon
iirc that's a 46/58 compressor so a bit bigger, and ancient dinosaur wheel geometry so maybe not so interesting
 
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