Which chip?
12-10-2003, 02:42 AM
#32
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Originally posted by pzull
delhi, yeah latest version to get would be the 64-bit processing. With some tech knowledge you could do a dual processor, one each for each bank of cylinders and one each for the distributors. Faster processing = faster ignition = faster rpm = faster car. I figure you could double the power to...oh...500bhp
just make sure you use linux OS cos you don't want to see your gauges turn blue suddenly at 150mph and have to reboot
delhi, yeah latest version to get would be the 64-bit processing. With some tech knowledge you could do a dual processor, one each for each bank of cylinders and one each for the distributors. Faster processing = faster ignition = faster rpm = faster car. I figure you could double the power to...oh...500bhp
just make sure you use linux OS cos you don't want to see your gauges turn blue suddenly at 150mph and have to reboot
12-10-2003, 03:42 AM
#33
As Adrian has implied, performance chips for a 964 are generally a waste of
time & money and can cause potential damage to the engine!
The key point about chips is that they gain performance by advancing the
ignition timing, as very little can be gained without other mods, by dumping
in more fuel. The 964 and later Porsches all have knock sensors which basically
limit how much ignition advance can be done since the DME will retard the ignition
and offset the added ignition advance. This will always be the case unless the
knock sensors are disabled within the DME. Some chips just move up the red line
which is asking for trouble.
In the last six months, I've converted about five Porsche DMEs to stock chips
because of running problems or ignition pinging problems. Few if any chip
guys spend time developing the chips using a dyno, which is very necessary,
and just "tweak" the ignition maps on a PC. The bottomline; Most chips are
junk!
Check out this website (www.systemsc.com) on the Technical, Problems,
and Graphs pages for some additional info.
Loren
'88 3.2
time & money and can cause potential damage to the engine!
The key point about chips is that they gain performance by advancing the
ignition timing, as very little can be gained without other mods, by dumping
in more fuel. The 964 and later Porsches all have knock sensors which basically
limit how much ignition advance can be done since the DME will retard the ignition
and offset the added ignition advance. This will always be the case unless the
knock sensors are disabled within the DME. Some chips just move up the red line
which is asking for trouble.
In the last six months, I've converted about five Porsche DMEs to stock chips
because of running problems or ignition pinging problems. Few if any chip
guys spend time developing the chips using a dyno, which is very necessary,
and just "tweak" the ignition maps on a PC. The bottomline; Most chips are
junk!
Check out this website (www.systemsc.com) on the Technical, Problems,
and Graphs pages for some additional info.
Loren
'88 3.2
