Malingerer
Go Kart Champion
- Location
- OC,NY
- Car(s)
- 2016 GTI SE
With The TPC 25
7
TPC Performance Housing Turbo Thread (Not the IS38 Ball Bearing thread....)
- Thread starter arob157
- Start date
Diggs24
Autocross Champion
- Location
- de plains! de plains!
- Car(s)
- 2015 GTI
Don't neuter these things with an HPFP upgrade.
Malingerer
Go Kart Champion
- Location
- OC,NY
- Car(s)
- 2016 GTI SE
So need a LPFP and a HPFP? Or a LPFP and MPI or would just a LPFP be sufficient?
LPFP MPI
Diggs24
Autocross Champion
- Location
- de plains! de plains!
- Car(s)
- 2015 GTI
^
OEM IS20 - 42.5/54.0 compressor wheel & 46.8/50.5 tubine wheel; IS20 housing is around 6-7cm diameter
OEM IS38 - 45.2/58.0 compressor wheel & 47.4/54.7 tubine wheel; IS38 housing is around 8-9cm diameter
TPC20 - 54/67mm compressor wheel & 53/56mm tubine wheel; uses an IS20 exhaust housing
TPC25 - 54/67mm compressor wheel & 53/56mm tubine wheel; uses an IS38 exhaust housing
TPC38 - 56/71mm compressor wheel & 55/60mm turbine wheel; uses an IS38 exhaust housing
All three specs are listed with Performance Compressor housing + inlet. All three use a modified IHI center section & OEM coolant/oil line fittings/hoses. There are other differences in the compressor and turbine wheels as well, but the basic sizes give you an idea of the steps.
Highly recommend an LPFP upgrade and MPI. Can get away with HPFP like others have said, but buy once, cry once. Unless you are 100% sure you will only ever run pump gas and not want to push the turbo any harder (and you will lol).
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Diggs24
Autocross Champion
- Location
- de plains! de plains!
- Car(s)
- 2015 GTI
I doubt you could even run a TPC25 to redline at any appreciable boost on the stock LPFP. If you don't want to spend money on proper fueling get an IS38.
railroader
Autocross Newbie
- Location
- Yuma Arizona
You can get all your fueling and turbo, get some pricing at my online store.
Malingerer
Go Kart Champion
- Location
- OC,NY
- Car(s)
- 2016 GTI SE
Thank you everyone
SaiiBoost
Go Kart Newbie
- Location
- Gainesville
- Car(s)
- 2016 GTI S
It definitely wasn't stock. It was fast, but he/she hit the brakes in front of me on the entrance ramp, which made me slow down, then they got on it and kept pulling while I was playing catch up. Impressed how quickly I got to 136mph though on a stage 2. I had no chance though. It kept pulling away.
Malingerer
Go Kart Champion
- Location
- OC,NY
- Car(s)
- 2016 GTI SE
So MPI comes with new injectors and you have to drill and tap into stock manifold ? Unless you buy the European Manifold which bolts right up and that has the ports already for MPI . So you will be running 8 injectors total ? They work along side the stock injectors or they just replace the stock injectors ?
Diggs24
Autocross Champion
- Location
- de plains! de plains!
- Car(s)
- 2015 GTI
They work in conjunction. You can see as they come in and take some of the load from the DI injectors:
https://datazap.me/u/diggs24/4th-gear-wrx?log=0&data=8-14-31-32
https://datazap.me/u/diggs24/4th-gear-wrx?log=0&data=8-14-31-32
Diggs24
Autocross Champion
- Location
- de plains! de plains!
- Car(s)
- 2015 GTI
Yes, the euro manifold is ready for MPI (as long as you get the right part #, they removed it in later years).
Interested in more of your data/results. Website link?
Lord_Flexington
Drag Racing Champion
- Location
- Syracuse
- Car(s)
- 15 MK7 GTI LP PP
Hes correct on all. I'm one of the few running a LPFP and HPFP specifically because E tunes aren't allowed in my competition class (thankfully) and there is none around. I'll be running the 25 as I'm going to bigger tracks this year and can use more top end seeing as the car pulls like a freight train as is.
It's not terribly hard install but LPFP MPI is better overall as stated.