I'll let one of the guys that actually tunes these things confirm, but I thought that with this size turbo, you're tuning around the HPFP in the mid rpm range and the LPFP at the top of the RPM range if you don't upgrade them.
7
APR DTR6054 Direct Turbocharger Replacement System
- Thread starter Arin@APR
- Start date
Escape Hatch
Autocross Champion
- Location
- USA
- Car(s)
- Mk7 GTI
May pick this up, throw the stock DP back in and give the GTI to my son. Great car for a 16 year old! 
HelloNewman
Go Kart Champion
- Location
- SoCal
- Car(s)
- Mk7
buys aftermarket turbo, is upset when it sounds like an aftermarket turbo. lolwut. Another episode of things you will only read on a vw forum.
Tom Brohanks
Go Kart Champion
- Location
- Georgia
The R has a different stock HPFP and LPFP? That's what I'm questioning. Just curious why the curve is different. I understand the measured power differences since the R is AWD, but why does the R curve flatten out up top but the GTI briefly peaks and then starts going back down again?
I guess looking at these more the R curve kinda does the same, it's just not as pronounced. Could just be how they translated their dyno charts to this graphic.
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Injectors as well
Wastegate13
Autocross Champion
- Location
- SoFla
R has different head, intake cam and injectors. Raising the airflow up top exacerbates these differences, the gti is likely scaled back to stay in the safety margin.
FSTSNAL
Go Kart Champion
- Location
- Sacramento
- Car(s)
- 2019 DVP Spektrum R
They mentioned before. Gti is pzev golf r is not so the rules for carb and the epa differ.
ryansonfire
Go Kart Newbie
- Location
- jax fl
Makes comments on shit they know nothing about, check. I bought the kit as soon as it was released and Apr didn't provide any sound clips or dynos. You're correct it's my fault for buying a product without fully researching it, but is it ok with you if I have some concerns?
riceburner
Autocross Champion
- Location
- nice try PPNT
- Car(s)
- MK5 Best GTI
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GreatFallsofGreen
Ready to race!
- Location
- SoCal
- Car(s)
- GFG 7.5, 6MT
Well before we speculate…the graphs aren’t scaled equally on x or y…The R has a different stock HPFP and LPFP? That's what I'm questioning. Just curious why the curve is different. I understand the measured power differences since the R is AWD, but why does the R curve flatten out up top but the GTI briefly peaks and then starts going back down again?
I guess looking at these more the R curve kinda does the same, it's just not as pronounced. Could just be how they translated their dyno charts to this graphic.
HelloNewman
Go Kart Champion
- Location
- SoCal
- Car(s)
- Mk7
Oh the irony of this comment. My guy, what you are saying doesn't make any sense. ALL the aftermarket large turbo upgrades make more noise. Going into a large turbo upgrade and being mad that it makes more noise is like dating a stripper and being mad you're not the first guy she's been with. What were you expecting?
Jose_Gti
Autocross Newbie
- Location
- Philadelphia
Wait, what?!?!?!
She doesn't love you, Jose. I'm sorry.
avenali312
Autocross Champion
- Location
- Mableton, GA
- Car(s)
- 2015 GTI
This is making some reaching assumptions. A stripper doesn't necessarily need to be loose as well. They could just be doing it to get through school or something, not because they are a nympho. I think if you replace "stripper" with "man or woman of the night," then sure.
I realize this doesn't add anything useful, but I just wanted to keep the off-topic-ness going strong in here.
mrmatto
Autocross Champion
- Location
- Jacksonville, FL
- Car(s)
- 2024 GTI DSG
NORMALIZE STRIPPING TO PAY FOR COLLEGE