Be advised- I've been modifying vehicles for quite some time, and the Haynes thermocontroller units are known to be not very dependable. I'd keep a close eye on things, or if you're more inclined to build it and forget it, go with the SPAL- they're relatively inexpensive as well (though you will need to work in a sense mechanism- I like the BMW dual-zone temp switches, personally).Originally Posted by dnarby
Don't I know it! My truck still isn't tuned completely, but I have plenty of torque down low, right where it's needed. Plus, as you mentioned, there's that growl/howl as you get on it from low RPMs- very much akin to one of those old car chase movies. I'm actually curious what it is that makes that sound- I'd always heard it was the secondaries kicking in on a carb'd engine, but pretty sure we don't have secondaries in a TBI. Regardless, I love it!It's a fun car to drive, gobs of torque compared to a regular Volvo wagon. Sounds good when you punch it from a standing start too...
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