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Help Wanted Mk7.5 tcu tune and turbo

Inigo

Inigo

Ready to race!
Location
Colorado
Car(s)
Golf R
My mk7.5R has transformed recently. The engine is getting fully built as I write this. My TCU is tuned by TVS but only to stage 2+. I need more torque holding capacity and they dont offer stage 3 for at home flashing. Nearest dealer that can flash stage 3 is in torrance Cali. Any suggestions.


Also running a DBV2 V2 but am maxing it out at 28 psi and boost is tapering off after that (I live in Colorado). Thinking Boss600 which I have in my back pocket OR something else. Recommendations?
 
GTI Jake

GTI Jake

Autocross Champion
Location
Charlotte, NC
CTS has a pretty bad track record with their Boss turbos. I’d skip that idea.

Maybe Iroz? You really don’t hear about DBV2 being a choke point around here, but at altitude you’re fighting thin air
 
TAZZ1

TAZZ1

Ready to race!
Location
Bey, LB
Weekend road trip to cali with a stop in Vegas. If you're opening up your engine you can afford it :D

That said, the TVS stg2+ tcu tune on DQ381 can handle up to 443 lbft
 
Hoon

Hoon

Autocross Champion
Location
Rhode Island
Who did your ECU tune? Can you post datalogs?

Something doesn't seem right here. I've seen smaller turbos hold 29psi to redline in Denver and still have more left in them.
 
Inigo

Inigo

Ready to race!
Location
Colorado
Car(s)
Golf R
Hoon said:
Who did your ECU tune? Can you post datalogs?

Something doesn't seem right here. I've seen smaller turbos hold 29psi to redline in Denver and still have more left in them.
Click to expand...

United Motorsports
 

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Inigo

Inigo

Ready to race!
Location
Colorado
Car(s)
Golf R
TAZZ said:
Weekend road trip to cali with a stop in Vegas. If you're opening up your engine you can afford it :D

That said, the TVS stg2+ tcu tune on DQ381 can handle up to 443 lbft
Click to expand...

I dont have the time or desire to road trip. The logistics would be a nightmare, especially dealing with Eurocode. Just getting an acceptable stage 2+ tune was like pulling teeth from them.
 
SugarMouth

SugarMouth

Drag Race Newbie
Location
Nevada
Inigo said:
My mk7.5R has transformed recently. The engine is getting fully built as I write this. My TCU is tuned by TVS but only to stage 2+. I need more torque holding capacity and they dont offer stage 3 for at home flashing. Nearest dealer that can flash stage 3 is in torrance Cali. Any suggestions.


Also running a DBV2 V2 but am maxing it out at 28 psi and boost is tapering off after that (I live in Colorado). Thinking Boss600 which I have in my back pocket OR something else. Recommendations?
Click to expand...


You should be able to pull 28 to redline even in Denver provided you have fuel. What are you running for a fuel system and what fuel are you running?
 
mkv:uno

mkv:uno

Ready to race!
Location
socal
JS12 said:
Have you checked with UM? I just got the call yesterday that their DQ381 tune is now available.
Click to expand...

Yeah I also just check with UM and they said the TCU software for the DQ381 was released on Monday.
 
Inigo

Inigo

Ready to race!
Location
Colorado
Car(s)
Golf R
JS12 said:
Have you checked with UM? I just got the call yesterday that their DQ381 tune is now available.
Click to expand...

Yes! They will be tuning the TCU.

I talked to the shop that's doing the block and headwork. The last graph posted above reflects a tune that preserves the stock block (at that time).

They think they can bring on full spool much faster with a built block. I noted that I wanted a TQ monster.

When the car is finished, I will be tuned for flex on MPI with Torqebyte etc....should be a rocket.
 
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