I just realized that the throttle body on our car has inlet/outlet for coolant. This is similar to what I had on my 95 Corvette and is apparently meant to heat up the throttle body in colder climates. For my old car there were so-called "throttle coolant by-pass" kits made where you could disconnect the small inlet and outlet hoses and splice these together, thus bypassing the throttle body. This was supposedly good for a couple of horsepower and was presumably worth doing in moderate climates.

Is anyone else here familiar with this and has anyone done this?


Doug

 

Yes I did that on my 65 fastback mustang with a 1990 5.0L VORTECH SUPERCHARGED MOTOR plus I had the phenolic spacers in to keep the throttle body from contacting the intake so as to try and keep it cooler. This was back in the 90's and it was dynoed @ 497HP and 485TQ which was really good for the stock block I was pretty much maxed out on the engine border line from splitting the engine in half . It ran a 11.2 @132mph on street tires and 24 mpg on the highway T5 plus a 3.73 rear end. ( luved that car wish I still had it ). Oh well life goes on!

 

I did that bypass on my 94 and 96 Caprice and SS that I had owned. I also wondered it it was something that someone had done here. Unless you live in just a terrible cold area seems to me it is not needed.

 

Not sure about the calculations in the post below, but I would also not worry to much. Air is going at such a volume/velocity, it will not pickup that much heat (let the heaton take care of that ;-)):
http://forum.mazda6club.com/engine-d...nt-bypass.html

His calculation showed 0.13%, that would be about 0.52 HP on a 400 BHP car.