any word from the tuners out there on who might be in the market to tune for hep's 2.0t mkv intake manifold...
http://www.endtankusa.com/store/inde...d&productId=14
http://www.endtankusa.com/store/inde...d&productId=14
V
Who will tune for hep's 2.0t intake manifold
- Thread starter gti314
- Start date
CoNGLoMeRaTeGTi
Banned
- Location
- TRuCHoLaND Ny
- Car(s)
- MKV
It's rumored that UNI is creating a flapless software solution.
We'll see.
We'll see.
eurocars
5/17/15 - Never forget
- Location
- Indianapolis
- Car(s)
- 2006 GTI
link fail
mfzero
knucklehead
- Location
- Haverhill, Ma.
GodSquadMandrake
Radioactive Rotary Rocket
- Location
- Minneapolis
What is the total manifold volume and for each runner? Runner length?
John/Cue\Publik
Speed>stance
- Location
- Lake Stevens, WA
- Car(s)
- 2007 Rabbit
I know united motorsports (formerly Jeff from C2)did it for the 2.5 but I don't even think they do 2.0Ts
John/Cue\Publik
Speed>stance
- Location
- Lake Stevens, WA
- Car(s)
- 2007 Rabbit
HEP manifold and a retune on an otherwise stock rabbit made 197whp
CoNGLoMeRaTeGTi
Banned
- Location
- TRuCHoLaND Ny
- Car(s)
- MKV
no need to tune for this intake mani.
forget getting a tune. http://forums.vwvortex.com/showthread.php?5139281-New-Intake-Manifold-with-Tumble-flaps-by-HGP
forget getting a tune. http://forums.vwvortex.com/showthread.php?5139281-New-Intake-Manifold-with-Tumble-flaps-by-HGP
John/Cue\Publik
Speed>stance
- Location
- Lake Stevens, WA
- Car(s)
- 2007 Rabbit
run a dyno with an AFR monitor and you'll see that reworking the tune on a mod like this is going to be a must. at least on the 2.5 fixing the tune added 40hp. The ECM is smart but not smart enough to adapt that much and asking the ecm to adapt that much is going to equal inconsistent gains and a quirky powerband. I'm looking at running the HEP manifold on the turbo rabbit around a year from now when I've recovered from my current build.
GodSquadMandrake
Radioactive Rotary Rocket
- Location
- Minneapolis
The reason a proper tune is critical is because of air speeds and mixture densities. Longer thinner runners create higher velocity air, but less volume so they are ideal for low end torque because the cylinder will fill more completely with fresh air in the low end. Shorter wider runners are just the opposite. But our ECU is working off of MAP, MAF, and throttle position. So changing even just the runner length means your A/F ratio is no longer ideal even if the TPS signal is the same.
Removing the tumbler flaps is going to change the mixture density at low engine speeds because the air is no longer spinning and won't mix as well, needs more fuel.
So to restate my questions in a previous post, is this manifold designed to improve response with a stock turbo or is it designed to improve flow with a big turbo?
Removing the tumbler flaps is going to change the mixture density at low engine speeds because the air is no longer spinning and won't mix as well, needs more fuel.
So to restate my questions in a previous post, is this manifold designed to improve response with a stock turbo or is it designed to improve flow with a big turbo?