Performance chip 928S4 1988
12-20-2014, 03:47 PM
#31
Basic Sponsor
Rennlist
Site Sponsor
Rennlist
Site Sponsor
OP fit an X pipe and you will get the extra kick you need - plug and play.
__________________
Does it have the "Do It Yourself" manual transmission, or the superior "Fully Equipped by Porsche" Automatic Transmission?
George Layton March 2014
928 Owners are ".....a secret sect of quietly assured Porsche pragmatists who in near anonymity appreciate the prodigious, easy going prowess of the 928."
Does it have the "Do It Yourself" manual transmission, or the superior "Fully Equipped by Porsche" Automatic Transmission?
George Layton March 2014928 Owners are ".....a secret sect of quietly assured Porsche pragmatists who in near anonymity appreciate the prodigious, easy going prowess of the 928."
12-20-2014, 10:23 PM
#32
Addict
Rennlist Member
Rennlist Member
Join Date: Oct 2003
Location: Gone. On the Open Road
Posts: 16,329
Received 1,543 Likes
on
1,007 Posts
Except, of course, that his chips will be targeted at a well-running S4 with everything engine-wise working and no deferred maintenance.
I bring this up because based upon your other thread I suspect that your 928 may not be running to its normal potential?
Do you know if your resonance flap works? Knock sensors? Hall sensor? Has your mass-air sensor been rebuilt in the last 10 years? How about your fuel injectors? Have they been ultrasonically cleaned? Oxygen sensor original? Or recent? Plugs? Coil wires? Caps? Rotors? Does your 928 idle high and thus have vacuum leaks (false air)?
It's very easy for a 928 to loose 30 - 50 hp and still seem like it's running fine due to degradation of stuff bolted to the engine (or to the exhaust in the case of the 02 sensor.) There's no point in looking at chips if the engine isn't running at, or near, its original potential.