How many lbs of boost do you run on the street?
02-25-2010, 07:25 PM
#61
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See, I keep hearing this from all kinds of other people in other non Porsche forums. Plenty of people runnin 20-25psi on pump for years and no issues.
I have a bud locally that has a newer Mach 1 with sc kit and he runs stock compression (10:1) with 20psi on pump for a long time now and now issues........
I have a bud locally that has a newer Mach 1 with sc kit and he runs stock compression (10:1) with 20psi on pump for a long time now and now issues........
02-25-2010, 08:42 PM
#62
Nordschleife Master
You run 87 OCTANE in your diesel?
I have repeatedly been criticized for my timing maps (with more than a few listers telling me my timing was WAY too far advanced to be good), but hey, they have been working quite well for me!
I believe I can move it down the RPM range as well to get some better throttle response down low, but haven't had time lately to deal with the car...
I have repeatedly been criticized for my timing maps (with more than a few listers telling me my timing was WAY too far advanced to be good), but hey, they have been working quite well for me!
I believe I can move it down the RPM range as well to get some better throttle response down low, but haven't had time lately to deal with the car...
02-25-2010, 11:43 PM
#63
Rennlist Member
18-20 psi on 93 octane when it's really cold outside (40's)
Normally I run 18 or lower though. In the summer I plan to reduce it maybe 16 or so.
My afr's are never over 11.8 and I don't run overly advanced timing either.
Once I have the ostrich hooked up though I'll probably dial the boost down in favor of more timing. Right now I have no absolute timing control so I make up with more boost.
Normally I run 18 or lower though. In the summer I plan to reduce it maybe 16 or so.
My afr's are never over 11.8 and I don't run overly advanced timing either.
Once I have the ostrich hooked up though I'll probably dial the boost down in favor of more timing. Right now I have no absolute timing control so I make up with more boost.
02-26-2010, 12:51 AM
#64
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02-26-2010, 10:29 AM
#65
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02-26-2010, 11:47 AM
#66
Race Car
You run 87 OCTANE in your diesel?
I have repeatedly been criticized for my timing maps (with more than a few listers telling me my timing was WAY too far advanced to be good), but hey, they have been working quite well for me!
I believe I can move it down the RPM range as well to get some better throttle response down low, but haven't had time lately to deal with the car...
I have repeatedly been criticized for my timing maps (with more than a few listers telling me my timing was WAY too far advanced to be good), but hey, they have been working quite well for me!
I believe I can move it down the RPM range as well to get some better throttle response down low, but haven't had time lately to deal with the car...
02-26-2010, 08:15 PM
#67
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the hole piston size thing the engine builder said is true but also a pretty broad genralisation..
So for a given fuel generally a smaller piston volume (of similar design ) with withstand a higher compression ratio . of "similar design " kind of complicates it engines that have good cooling with nice even temp tend to be able to run alot of compression or boost
So for a given fuel generally a smaller piston volume (of similar design ) with withstand a higher compression ratio . of "similar design " kind of complicates it engines that have good cooling with nice even temp tend to be able to run alot of compression or boost
02-26-2010, 11:39 PM
#68
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BTW, I plan to run 20psi on E85 daily and 25 when I get the urge. On 93 octane, I plan to run 18. I do have V-Flex.
With a standalone you have full control of what is going on. I miss that.
