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Aftermarket heads?

Wastegate13

Wastegate13

Autocross Champion
Location
SoFla
Your other post indicates that you are on a canned tune and stock turbo. People are making 5-600 whp without opening the motor. You don’t need a ported head.
 
A

Adam071406

Passed Driver's Ed
Location
Texas
Wastegate13 said:
Your other post indicates that you are on a canned tune and stock turbo. People are making 5-600 whp without opening the motor. You don’t need a ported head.
Click to expand...
Yes, canned tune. What are some people doing to achieve 500WHP? Given that I’m limited to 93 octane until a flex-fuel kit is available for the MK7R, and I don’t want to give up any low end torque or efficiency in the low RPM range by swapping to a larger turbo.
 
Wastegate13

Wastegate13

Autocross Champion
Location
SoFla
Adam071406 said:
Yes, canned tune. What are some people doing to achieve 500WHP? Given that I’m limited to 93 octane until a flex-fuel kit is available for the MK7R, and I don’t want to give up any low end torque or efficiency in the low RPM range by swapping to a larger turbo.
Click to expand...
According to Hoon my car should be around 500whp. EQT vortex, brushless lpfp, mpi and boltons on e85.
 
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Adam071406

Passed Driver's Ed
Location
Texas
Diggs24 said:
Then you’re stuck. 500whp requires giving up spool. You’ll need mpi and lpfp as well. No ethanol means even bigger turbo to hit 500 which means more lag. You want 500 get a different car with more displacement.
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I don’t want 500whp, well 500whp would be nice…, but I am not fixed on big power.
, I saw this video and it had me wondering what was left on the table in terms of power for the MK7R. I know the head they use isn’t available for LHD TSI’s but it still had me interested in what a higher flowing exhaust manifold would produce in terms of turbo efficiency.
 
scrllock

scrllock

Autocross Champion
Location
MI
Adam071406 said:
I don’t want 500whp, well 500whp would be nice…, but I am not fixed on big power.
, I saw this video and it had me wondering what was left on the table in terms of power for the MK7R. I know the head they use isn’t available for LHD TSI’s but it still had me interested in what a higher flowing exhaust manifold would produce in terms of turbo efficiency.
Click to expand...
the problem is the manifold is part of the head and only has 2 ports. there is only so much material you can remove before you hit the water jackets.
Adam071406 said:
Yes, canned tune. What are some people doing to achieve 500WHP? Given that I’m limited to 93 octane until a flex-fuel kit is available for the MK7R, and I don’t want to give up any low end torque or efficiency in the low RPM range by swapping to a larger turbo.
Click to expand...
you could port the head on a stock turbo but the cost/effort doesn't make sense. multiple thousands of dollars for less HP than you'd get with e85.

there are several flex kits available.

https://scskunkwerks.com/products/mqb-ethanol-sensor-flex-fuel-kit
https://performancebyie.com/products/ie-trueflex-sensor-harness-for-mqb-engines
https://www.cobbtuning.com/products...i-jetta-a7-gli-mk7-mk7-5-golf-r-audi-a3-s3-8v
 
A

Adam071406

Passed Driver's Ed
Location
Texas
Do these kits/tunes utilize the oem ecm or do they require a standalone engine controller?
scrllock said:
the problem is the manifold is part of the head and only has 2 ports. there is only so much material you can remove before you hit the water jackets.

you could port the head on a stock turbo but the cost/effort doesn't make sense. multiple thousands of dollars for less HP than you'd get with e85.

there are several flex kits available.

https://scskunkwerks.com/products/mqb-ethanol-sensor-flex-fuel-kit
https://performancebyie.com/products/ie-trueflex-sensor-harness-for-mqb-engines
https://www.cobbtuning.com/products...i-jetta-a7-gli-mk7-mk7-5-golf-r-audi-a3-s3-8v
Click to expand...
 
scrllock

scrllock

Autocross Champion
Location
MI
Adam071406 said:
Do these kits/tunes utilize the oem ecm or do they require a standalone engine controller?
Click to expand...
AFU (alternative fuel, i.e. ethanol) is supported natively by our ECUs, it's just a couple flags and the ECU will read ethanol content from a factory input (brazil market cars presumably) and adjust fueling accordingly. Those kits just run a pin to that input from a GM/continental sensor added in-line. The patches I mentioned in the other thread are to enable scaling other things like boost, timing, lambda, mpi split, etc. as well in order to add (or reduce) power.
 
A

Adam071406

Passed Driver's Ed
Location
Texas
scrllock said:
AFU (alternative fuel, i.e. ethanol) is supported natively by our ECUs, it's just a couple flags and the ECU will read ethanol content from a factory input (brazil market cars presumably) and adjust fueling accordingly. Those kits just run a pin to that input from a GM/continental sensor added in-line. The patches I mentioned in the other thread are to enable scaling other things like boost, timing, lambda, mpi split, etc. as well in order to add (or reduce) power.
Click to expand...
So they a inline C2H6O sensor and then swap between E10,E30 & E50 tune files or do they use lambda to achieve flex fuel?
 
scrllock

scrllock

Autocross Champion
Location
MI
Adam071406 said:
So they a inline C2H6O sensor and then swap between E10,E30 & E50 tune files or do they use lambda to achieve flex fuel?
Click to expand...
no, the ECU reads the 5v signal off the sensor and scales fuel trims accordingly. one calibration.
it is possible to use the wideband to accomplish the same thing (the ecu has provisions for that as well) but few people are willing to trust it when a dedicated sensor is so simple to add.
 
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