Been working on my sd4. I need more oil capacity for it. Going into an 88 coupe. The original pan holds only 3.5 quarts. Thinking of enlarging it towards the front of the engine. What's your thoughts ?
theogre
OCT 18, 03:04 AM
only 84 stock L4 had 3.5q oil cap. later is 4. All used PF47 Filter except 88.
Recall 84 used PF52 and change dip stick to raise oil cap to ~ 4q. Any others w/ a "long" filter adds some oil space. 4.5q is common w/ most w/ long filters.
xx3980 and other are long filters. But PF52 no longer is same. Is shorter then others but longer then PF47.
See my Cave, Oil and Filter (Allied Signal/Honeywell no longer make oil filters.)
Sump mod where you say likely will cause problems if it lets oil starving in turning the car. Oil moves away from pickup as is but OE sump walls resist most of that problem unless low on oil. Even then is times where oil moves enough to cause low OP. I get one left turn on a down hill road that do this w/ just a tiny bit low on the dip stick. I mean tiny. Between down sloop when turning left can cause oil starve enough to see unless dip stick is at full mark. Near 1q low can blink oil light sometimes too.
So if you race likely need more charges to a pan then just adding oil capacity.
ETA--> Trans oil can have same problem. Low oil w/ Autos, TH125c and 4Txx, often hate turning left and can even drop out of Drive doing so. Stick cars are not immune to this either but nothing to tell you like autos will.
------------------ Dr. Ian Malcolm: Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should. (Jurassic Park)
