crossflow cooling ?

[falconator]

I just droped my 200 Xflow into my 1964 US Falcon and I have no room for the fan. I have a new 3 row radiator and it rubs on the waterpump shaft. I modified the motor mounts and got the motor and tranny back about 3/4 of an inch, can I run just a electric fan,and how many cfm would it take to keep cool ?I have some room in front of the radiator can I mount the elec. fan there ? Any one run into this problem when instaling a xflow in a Falcon or Mustang ? If I use the old 2 row radiator I have alittle more room but less cooling ! Thanks, Mike

 

[xctasy]

The single row fan pulley I've sent will do the job space wise, but you've got to go to an electric fan.

The Aussie and US 250 engines of whatever type put the water pump up to the upper radiator header tank when mounted into the small round body Falcons. Our XK, XM, XL, and XP's suffer the same issues as 60 to 65 Falcons.

The solution is to look at Does10's, and Offenokee Comet and some of the other people here and run a large electric sucker or pusher fan.OffenokeeComet's has a sucker fan which, in my opinion, is better than the pusher fan.

If its sized right, and you can make it fit, most electric sucker or pusher fans will be just fine for an X-flow with 125 to 165 hp.


Beware that the stock fan is designed to give wind rush to the engin, as well as create a moving flow from the front of the radiator matrix to the back. Generally, the best cooling is from the stock fans which have the least number of blades.

 

[addo]

Coupe Boy is doing some research on everyone's behalf. He is investigating the use of the Aussie three-bolt block mounts to set back the motor.

They require a custom fabricated pair of brackets off the chassis. Not very hard to make but the prototyping isn't done. This way you can vary the height, tilt and jam it right back until fouling occurs on the firewall.

If you PM him, he might be able to offer some commentary and pictures of the mounts (unless you got the original mounts with your block, at which point go for it yourself).

Regards, Adam.

 

[xctasy]

Lets not forget Harrie thought of fully adjustable fabricated mounts first!, but the concept isn't new!

My mate runs a late 455 Pontiac engine in his early 400 Formula Firebird. The Pontiac engine mounts have a delightfull issue with respect to varying bolt counts. F'rinstance, the early 326/389/421/428 ones were two bolt, then the 400/455 were three bolt, then the big cars stayed as two bolt, but later, Pontiac decied it couldn't decide what it was going to do, so it went to five bolt. In many instances three holes on one side was drilled!.

Must have been the funny Indian drugs the Pontiac engineers smoked in the 70's.

Here is a fabricated set which are used for 326-350-400-455 transplants into 75 to 81 F Birds.

Any way, his simple solution to fit a five bolt engine into a 2 bolt chasiss was to add a the factory 403 Olds style flitch plate used on various models. It was a factory example of what you guys propose.

Performance Years markets the Indian Adventures kit I've shown here. The are basically super thin flitch plates, and since the engine is held in shear, strenght isn't an issue.

Back in 2003, I experiemented with moving the engine down 0.75" and back 2" when I was proposing to bolt my Rootes blow over the manifold of my old XE. There is no problem with moving it up or down, strength is not impaired in any way. There is enough room at the firewall to move the engine back, more if you use a Big Friendly Hammer and tap the fiewall join back. I'm not sure if its that easy in earlier X-shells with the braces, but there is room there even so. I spoke to the certication authority here, and he wasn't worried when he saw GM were doing it!