Quote:
Originally Posted by DarkSunrise
That's true, but not all oil coolers are built the same. Generally speaking, a narrower width oil cooler with more rows (taller) will have much less of a reduction in oil pressure.
http://www.setrabusa.com/products/oi...ine/index.html
Same for larger oil lines with gentler bends. The goal is that the oil cooler reduce temps to a large enough extent to more than off-set the small drop in oil pressures that it causes.
A little spitball math here. The Setrab link above shows the pressure drop across a Setrab 613 is around 4 psi. In my experience, a typical front-mount Setrab 613 setup (Perrin, Racer X, etc.) will reduce oil temps by about 40 F on this platform. From the pressures shown on this link, that means a 613 will still add another 16-17 psi oil pressure at 7000 rpm (assuming 235 vs. 275 F oil temps).
https://www.ft86club.com/forums/showthread.php?t=91820
So it's still adding a net benefit despite the fact that the Setrab 613 IMO is a pretty marginal setup on this platform (without doing something to increase its efficiency like a vented hood). From what I've heard, a well designed 19 row cooler can drop oil temps on this platform around 50 F. |
Hey! I just found this comment which I find very useful, but I am confused about the psi drop table and the radiator size. How come is that more rows means less pressure drop? i.e 610 has 4.8 psi drop vs 613 has 4.0 psi drop
Basically I am debating between a setrab with 10 or 13 rows because I am concerned about overcooling in daily use and the 10 rows could be beneficial here. I make mix usage and right now I see easliy temps of 135° on the track, so an oil cooler is for sure needed (will keep NA)