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Oh yeah, I've look there since it's a popular spot to put them. Trouble is, that location is, of course, above the tranny which produces a good amount of heat on its own. Plus, heat from the engine will radiate there and the location is a dead end at the top (where heat normally rises). Putting a fan there, be it a blower or a drawer, will, minimally, suck air around the tranny (preheating it) and at worst just recirculate the air. From an engineering standpoint it's just a plain bad idea and I don't care how many people have (incorrectly) done it. Now, a heater in that location, like what VW did with the Type IV, is a very good idea ;) Porsche has oil lines that go to the front right fender where a simple coil of tubing (no fins or plates, just bare tubing) is mounted behind the headlamp assembly. That is their main oil cooler. The oil not only gets cooled at the coils but also along its journey to and fro. The turbos have an actual oil radiator to maximize cooling efficiency. DON'T TRY THIS AT HOME UNTIL YOU'VE EXAMINED THE REAL PORSCHE SETUP! They have a protective, louvered panel to protect the cooler and I believe some of the cooling air comes from the front as well. Neither setup uses a fan. But, I don't want to do that (especially stringing up those oil lines!), so back to the subject at hand... The location I'm going to work is the left side of the tranny, mounted horizontally on my anti-sway mount and the square end mounted to a pivot that will attach to the lower three tranny side plate studs. This keeps oil lines short, puts the cooler in the airstream and remains protected from tire debris-splash and won't get "bottomed-out" since my 5-speed tranny mounts will get smashed before the cooler gets touched. The bad side is that it's close to the ground so road surface heat may be a problem for extended idling periods (slow city traffic and I-5 traffic in Seattle :) but an optional blower fan can cure this (a snorkel attached to the fan to draw in air higher up, thus the air would be cooler). All of the aftermarket oil coolers that I have seen used are the cheap tube-and-fin or the better radiator style (like Mesa). Due to their size they require space and the upper tranny location is the easiest location. I've want to keep my systems simple and common as much as possible which is why I am using a stock Type IV cooler (I think a stock Type III could work as well, but just to make sure...) and it allows me some more location options. Toby "part time wannabe mechanical engineer and physicist" Erkson air_cooled_nut@pobox.com <-- Please use this address for email '72 VW Squareback 1.6L bored and stroked to 2.0L, Berg five-speed '75 Porsche 914 1.8L, ORPCA member Portland, Oregon, http://www.geocities.com/MotorCity/8501/ >-----Original Message----- >TobyE=> Placing the secondary in a good location isn't easy... > >I'm curious -- have you thought about putting it up by the tranny (or >anyplace else) with an electric fan? ------------------------------------------------------------------- List info at http://www.vwtype3.org/list or mailto:help@vwtype3.org