Casey,
I would strongly suggest you go with a dual platinum plug (a platinum ball
on both the center electrode and the side wire) versus a splitfire such as
Autolite APP3923's (the double P indicates double platinum / the AP3923
would have a single platinum on the sidewire). The reason is the platinum
has excellent wear properties where the splitfire will perform great for a
while until the sharp edges at the split wear and become rounded. After they
round off, their performance characteristics are not much better than
standard plugs. There is more wire there so the gap should hold longer that
regular plugs, but for the price hit go with the dual platinum's.
Sean
'92 RC Sport 3.9L 5spd - 250,000mi!
'01 CC SLT+ 4.7L 5spd 3.92 LSD Mobil1!
-----Original Message-----
From: Casey Aldridge [mailto:caldridge@uswest.net]
Sent: Wednesday, January 17, 2001 12:12 AM
To: DML
Subject: DML: Bosch +4.....
Ok...I may be bringing up something already discussed...but it seems to me
that the 4 electrodes on these plugs would cause less spark to reach the
combustion chamber. This is kinda like indexing regular plugs....by
exposing the open side of the plug to the cylinder as to enhance
combustion...so if you have 4 electrodes...it seems to me this would hinder
the power production. If I were a 4.7 owner...I would prolly go with a just
a regular Bosch plug with a colder range than stock. OR a splitfire or..
NGK.
=============================
Casey Aldridge
Tempe, Az
'97 RC Powerdyne Sc'ed V6
Hotckis 2-3 Performance Drop
www.users.qwest.net/~caldridge
=============================
This archive was generated by hypermail 2b29 : Fri Jun 20 2003 - 11:58:36 EDT