America GS Consolidated Thread
07-19-2015, 09:15 AM
#226
It will be a Bosch ECU.
If we go to a four valve head, it will be air cooled. We are also looking at other potential valve train technology. Notwithstanding, however, the engine will remain air cooled.
I hope I will not again be distracted because this should have been completed a long time agao.
If we go to a four valve head, it will be air cooled. We are also looking at other potential valve train technology. Notwithstanding, however, the engine will remain air cooled.
I hope I will not again be distracted because this should have been completed a long time agao.
11-22-2015, 07:17 PM
#231
Several weeks ago, we dynoed our air cooled, six cylinder test engine -- 4 liter, 2 valve, normally aspirated. Result was 430 HP with street gas and a catalytic converter. There are several modifications that various engineers have suggested which should result in approximately 440 HP. Given parts that have to be added, made and those that require modification, the next dyno run will be January. After that, on to the 4 valve version which, if successful, will be available to anyone.
11-23-2015, 12:27 PM
#232
Technical Guru
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11-24-2015, 01:23 AM
#233
Nordschleife Master
Is this your intake plenum?
https://m.facebook.com/photo.php?fbi...0424&source=48
https://m.facebook.com/photo.php?fbi...0424&source=48
https://m.facebook.com/photo.php?fbi...0424&source=48
https://m.facebook.com/photo.php?fbi...0424&source=48
11-24-2015, 06:44 AM
#234
No this not. Nor, by the way, is it our original airbox, which was but a first step, but which is not appropriate for this range of HP.
Notwithstanding, Jeff Gamroth does excellent work.
Notwithstanding, Jeff Gamroth does excellent work.
Last edited by Robert Linton; 11-24-2015 at 07:02 AM.
11-25-2015, 04:09 AM
#236
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12-28-2015, 11:27 AM
#240
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Robert, Porsche had already explored the 4 valve head technology in the 70's, and their ultimate solution for power and reliability was to at least water cool the heads. Do you plan to do this? I realize there are much more exotic coatings and surface treatments available to valves/valve guides than there were in the 70's, but you cannot argue with thermodynamics regarding power potential, especially if using gasoline.
