fe pulleys whats best

[SoTxButler]

Originally Posted by undy

All March seems to sell is under-drive garbage... Not real "cool" for our over-heat challenged FEs. OEM all the way!

Try to slightly over-drive water pump. Your FE will like you for it...

Very true. The FE runs cooler with at least a 7" pulley.

[Bobcat]

Guys ... not trying to contradict anyone , but I`ve been running the March under drive pulleys on my Ponds 482 since it went it went in the cars years ago and have no overheating problems . Street , down in SC in the Summer , I`ll get to 190 to 195 in traffic and then back to 185 or less once I get to 40 mph . On the track this past Memorial weekend at VIR , I saw 185 on track temps with an ambient of low to mid 90`s . I asked Robert what pulleys to run when I got the engine from him and he gave me the March part numbers .
I also realize every engine setup is different ... just passing on what I have .
BTW , he told me to not hook up the bypass from the water pump to the intake manifold . Don`t know what else he has done to the cooling system , but it works !

[fordracing65]

Kirkham pullies, billet, look great, work great.

[wrench87]

Well right now i have a 7.5 crank pulley and a 6 inch waterpump pulley so I am overdriving the pump?. Does any one know what size the Kirkham pulleys are?.

[patrickt]

Originally Posted by wrench87

Well right now i have a 7.5 crank pulley and a 6 inch waterpump pulley so I am overdriving the pump?. Does any one know what size the Kirkham pulleys are?.

For every revolution of your crank you will turn your water pump pulley 1.25 times, if I did my math correctly. So, yes, you are overdriving it. If you drive your car on the highway, on a hot day, and then you get stuck in stop and go traffic for 10 minutes or so, does your temperature continue to climb or does it level off at 100-105 and hold there? That's a little high, but not terribly so, and if your engine temp doesn't continue to climb and then overheat I wouldn't worry about it.

[wrench87]

pat, i still have to readjust timing and set carb etc, i just took it for its first ride with the big block. Yes the temp does come back down, i dont have a sensor to turn on my fans right now, on my small block i had a aluminum degas tank with the sensor in the bottom. I have to find a new set up i just have the back up toggle under the dash to turn on the dual fans.
I was thinking of one of the adjustable probe style ones?.

[patrickt]

OK, I have a 16" straight finned SPAL puller and the dual pushers up front. The SPAL is on a thermo switch from the lower radiator hose. The pushers are on a manual bypass switch (which also engages the puller as well). This past weekend I took her to a Wounded War Veterans show and it was hot. Really hot. I paid particular attention to my temp gauge and, after driving it at highway speeds, I got stuck in stop and go traffic. My puller fan alone kept the temperature in the low 90's -- I did not need to throw the manual switch for the pushers, which generally brings the temperature down in to the high 80's when I'm not moving. I don't really need the pushers, they're mostly a redundant "backup" system in case the puller, or the puller relay, fails. Once traffic cleared and I moved at a decent pace the air flow alone brought the temps down to 90 or a little below.