Which(size & brand) cams are you running with your ported head?
#61
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larger intake manifold also usually means the same. this is also why i'm not sure how to interpret ludikraut's experience of swapping the ams intake mani and seeing NO spool change... i don't know if this is a fluke or a what because even if we look at ams's own tests on a 9 (mivec) the intake mani made things spool up slower!
Trinydex, you are absolutely correct. I was going off memory, and must be getting senile, since when I looked at the charts again, I realized that my assertions had been incorrect. The effects were as follows:
Adding the AMS VSR intake is what resulted in the later spoolup.
Adding the ported head did not change spoolup, but resulted in less initital torque.
Both mods added topend power.
My apologies to all. I'll fix the earlier post...
l8r)
... hey looks like I got it right in my second post in this thread. I just brainfarted my first comment ...
Last edited by Ludikraut; Apr 18, 2007 at 11:01 PM.
#63
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Trinydex, you are absolutely correct. I was going off memory, and must be getting senile, since when I looked at the charts again, I realized that my assertions had been incorrect. The effects were as follows:
Adding the AMS VSR intake is what resulted in the later spoolup.
Adding the ported head did not change spoolup, but resulted in less initital torque.
Both mods added topend power.
My apologies to all. I'll fix the earlier post...
l8r)
... hey looks like I got it right in my second post in this thread. I just brainfarted my first comment ...
Adding the AMS VSR intake is what resulted in the later spoolup.
Adding the ported head did not change spoolup, but resulted in less initital torque.
Both mods added topend power.
My apologies to all. I'll fix the earlier post...
l8r)
... hey looks like I got it right in my second post in this thread. I just brainfarted my first comment ...
#66
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Join Date: Jan 2006
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-XS Power TBE
-Tial 50mm BOV
-Full-Race Exhaust Manifold
-DEI Exhaust Wrap (for Downpipe)
-Walbro 255 Fuel Pump
-Buscher Intake
-Manley Rods
-Mahle Pistons
-Clevite Rod Bearings
-Clevite Thrust Bearings
-Clevite Main Bearings
-Eibach Pro Springs
-Garrett GT30 Turbine
-IMW Race Head
* 5 Angle Valve Job
* New Valve Stem Seals
* Undercut Valves
* New Valve Guides
* New Floors and Ceilings
* Gasket Match Porting
* EGR Delete
-Cometic 86mm Head Gasket
-ARP Head Studs
-Block Work
* Hot Tanked
* Compression Tested
* Overbore .040
* Professionaly Honed
-Aeromotive FPR
-Greddy IC Piping
-280 HKS Cams (Off the AMS Drag Evo)
-Tial 44mm Wastegate
-Greddy / Trust Intercooler
-Apexi Neo Fuel Controller
-Turbo XS Dual Stage Boost Controller
-Perrin Fuel Rail
-AEM Tru Time Cam Gears
-RC 880cc Injectors
-Crower Springs and Retainers
-ACT 2600 Clutch (6Puck Non Sprung)
-60 shot Direct Port Wet ZEX Nitrous Kit
-Turbo XS UTEC
Don't make fun, I know its not the best setup but it works
It wasn't dyno ran, they don't have a AWD Dyno so they did it on the street, but they have been tuning evolutions and STIs for 3 years and a friend of mine had really good luck with them, kind of expensive but she runs great now :-)
http://www.gomcracing.com/ Lenexa Ks
-Tial 50mm BOV
-Full-Race Exhaust Manifold
-DEI Exhaust Wrap (for Downpipe)
-Walbro 255 Fuel Pump
-Buscher Intake
-Manley Rods
-Mahle Pistons
-Clevite Rod Bearings
-Clevite Thrust Bearings
-Clevite Main Bearings
-Eibach Pro Springs
-Garrett GT30 Turbine
-IMW Race Head
* 5 Angle Valve Job
* New Valve Stem Seals
* Undercut Valves
* New Valve Guides
* New Floors and Ceilings
* Gasket Match Porting
* EGR Delete
-Cometic 86mm Head Gasket
-ARP Head Studs
-Block Work
* Hot Tanked
* Compression Tested
* Overbore .040
* Professionaly Honed
-Aeromotive FPR
-Greddy IC Piping
-280 HKS Cams (Off the AMS Drag Evo)
-Tial 44mm Wastegate
-Greddy / Trust Intercooler
-Apexi Neo Fuel Controller
-Turbo XS Dual Stage Boost Controller
-Perrin Fuel Rail
-AEM Tru Time Cam Gears
-RC 880cc Injectors
-Crower Springs and Retainers
-ACT 2600 Clutch (6Puck Non Sprung)
-60 shot Direct Port Wet ZEX Nitrous Kit
-Turbo XS UTEC
Don't make fun, I know its not the best setup but it works
It wasn't dyno ran, they don't have a AWD Dyno so they did it on the street, but they have been tuning evolutions and STIs for 3 years and a friend of mine had really good luck with them, kind of expensive but she runs great now :-)
http://www.gomcracing.com/ Lenexa Ks
#67
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So... it seems that getting the race port job seems to give up a few hundred rpms on spool up, but with the bigger turbo and camshaft setup, the topend gain past ~3000 rpm is great is what I'm hearing. (I know I'm generalizing)
Does anyone have the bigger camshaft/race port setup with White Rabbit turbo, or 20G turbo setup? What could I expect with this setup?
Feel free to chime in. Thanks.
Does anyone have the bigger camshaft/race port setup with White Rabbit turbo, or 20G turbo setup? What could I expect with this setup?
Feel free to chime in. Thanks.
Last edited by EvoTornado; Apr 25, 2007 at 09:08 AM. Reason: An explanation statement added
#69
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iTrader: (12)
So... it seems that getting the race port job seems to give up a few hundred rpms on spool up, but with the bigger turbo and camshaft setup, the topend gain past ~3000 rpm is great is what I'm hearing. (I know I'm generalizing)
Does anyone have the bigger camshaft/race port setup with White Rabbit turbo, or 20G turbo setup? What could I expect with this setup?
Feel free to chime in. Thanks.
Does anyone have the bigger camshaft/race port setup with White Rabbit turbo, or 20G turbo setup? What could I expect with this setup?
Feel free to chime in. Thanks.
#73
could you go with some wackjob combo like 280i/264e on a ported head and maintain good spoolup or would there be no point because of the 264 ehaust cam limiting flow anyways?
what about adding a stroker into the mix?
what about adding a stroker into the mix?