Owns A Torsen
Joined: Mon Sep 18th, 2017
Occupation: Design and Innovation
Interests: RBV's, Computers
Reputation Points: 8328
|Yes the 2.5 has 2 spark plugs per cylinder, 4 on the left, 4 on the right. I have seen them listed in craigslist before as an 8 cylinder
It is commonly thought that the right side (passenger side in the US) only fire during the exhaust stroke which is what I was told but have never found solid evidence to prove it, that's why I didn't put it in this thread.
If Anthony says both are firing at the same time just double I would tend to believe it since he has been deeper into the systems than most people I have chatted with and has probably tracked the spark patterns on some sort of graph generated from some sort of gizmo he programmed using a laptop he found under a seat at a junk yard.
Now this is scary, my Dodge 4.7 had even compression throughout all the cylinders, nothing bogus in the oil,but a test revealed exhaust gasses in the coolant. Would miss at idle. Had a blown head gasket between 2 and 4 (same bank on a 4.7) but ran great beyond idle.
00 XLT 2WD RCSB 5.0 swap Gherkin
00 XLT 4WD XCSB 4.0 G2
00 XLT 4WD RCSB Steppie 3.blown. Mistake
00 XLT 4WD RCSB 3.GO! Jalapeño
I don't wear a mask and I have no regrets (Brent Smith)