Quote:
Originally Posted by carbuff
Mark,
From the pictures, it appears that you are running the stock bellhousing, unless that was just for mockup. Is that correct? At the power levels you are making, do you not think you would want something stronger? Or is your opinion that the stock bellhousing would be sufficient in case of a clutch failure?
Also, on your transmission cooler, I don't know what transmission temps are supposed to be, but I think I just read that the Weldon pump is thermostatically controlled. Is that correct, and do you run within that window, or do you control/override it somehow?
Finally, what size lines are you running to/from the trans cooler? I would think that a heavy weight oil like that would need larger lines, but I think I read that the pump is set up for -6AN lines?
As always, appreciate the education!
|
I'm using this setup - Weldon pump drawing from the drain, returning through the fill, with a small FluidDyne cooler, on my D&D T56. No T-stat - just a switch. With the cooler on, temps typically stay below 200F. On a couple of occasions when I forgot to flip the switch, temps would climb into the high 200s by 10 minutes into a track session, and shifting would start to get sticky.
In "normal" driving, temps never exceed low 200s without the cooler on.
One thing we did was use a single fluid temp gauge with sensors in the diff, trans, and engine, then use a 3-way switch to select which is displayed. I'll usually monitor engine oil temp during a run, then check on trans and diff temp during the cool-down lap. I'm not running a diff cooler, and have seen 260-270 diff temps with synthetic diff fluid on hot days. Marginal, but not enough to have me figure out how to package diff cooling in my setup just yet. Oh, and don't get me started on all of the tricks we had to use to keep diff fluid from being pumped out during a session ...
In my case I'm using a QuickTime 4th-gen F-body housing. SFI rated, and still relatively light. I figure I wouldn't need it if I was confident I would never hit 3rd while upshifting to 5th - but I'm not quite that confident