If you could overdrive the water pump rather than underdrive it then you'll be better off for the way you drive the car. Hemi engines were set up for high rpm but if the car isn't going to be raced then overdriving the water pump is a good idea.
I'll see what happens to it after my changes . If it still runs warm will look at changing pulleys , or maybe go to a higher flow pump
Its more about the fan RPM at low speeds than water flow.
Last edited by csk; 11/12/2004:33 PM.
1968 Charger COLD A/C Hilborn EFI 512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim 2020 T/A 392 Stock 11.79 @ 114.5
