Spec on FAT camshaft

[Gäschen]

Does anybody have the spec on the FAT cam with grind number 445? Don't remember the name exactly but maybe it was FTC 445???? It's a
T-4 cam!!

[Frallan2]

What I can read in my catalogue is
FC 445
.526"lift. (that must be on valves with stock rockers)
296 duration
This cam works excellent with more cc's and wher top end horsepower is needed on smaller motors.
Slightly smaller base circle. 102 lobe center.


I know of some very succesful large cc engines in Sweden running this cam.

[farmer]

Yeah, I think thats the grind Elnef had in his 2,4 in the beginning. Popped about 165 hp and massive torque. About 250 NM if memory serves right.
t.

[Wally]

296 duration

Would that be around 332 degrees when measured in the german (Schleicher) way?

Tnx,
Walter

[Tom Notch]

the exhaust lobe is the 445 spec on this cam card.



Its what I have in my notch's motor.

[Wally]

Thanks Tom; I had never seen a data sheet from FAT before.
Interesting to see that duration is measured at 0.050 inch lift. Thats 1.27 mm
Your lobe centres are 106 degrees. the other cam has 102...

Also interesting is to read on the sheet that this cam is 'advanced by 2 to 6 degrees in most applications'... I guess we better make adjustable (slotted) timing gears out of our cam gears

Tnx,
Walter

[Gäschen]

OK, so at 0,050" the duration is 254/242, and advertised duration is 296/284. Hmmm, how do the Germans measure their cam, if this translate into 332 degrees Schleicher.
Have anyone ever tried one of the German's cam.
I spoke to a guy, here in Norway, who have had problems with the US made cams, and then decide to try one of the Germans cam and lifter set up, with no problems at all. I'm not sure what to do, but it would have been nice to know how they (the Germans) measure them before buying one.

[Tom Notch]

Remember Gäschen, the intake is the 443 spec on this cam card. A true 445 would change the intake opening/closing to the same as the exhaust, add to the overlap (42degrees) and slightly change the lift.

I run my cams straight up, I *think* FAT's cam card is taken from somebody's elses V8 card. FAT had never ran or sold a dual pattern cam until this one. I spoke to Greg and said I thought this combo was worth a try on a big efi motor. Someday, when I have the notch in socal, I'll have to give him a ride .

I can say that this cam in my engine has preformed as I had hoped. Great big gobs of torque and pulls up to my imposed redline of 6300 rpm, just the ticket for a heavy (2700#s all up for traveling ) car. The torque curve is such that it does't really care too much what gear its in, it always will pull.

[Wally]

OK, so at 0,050" the duration is 254/242, and advertised duration is 296/284. Hmmm, how do the Germans measure their cam, if this translate into 332 degrees Schleicher.
Have anyone ever tried one of the German's cam.

Most german tuners measure their cam with less valve opening. I will have to check the Klaus catalog, but I thought it was at 0.10 or 0.15 mm. Thats quite a lot less then the 1,27 mm (0.050"), so durations are usually a lot less also when comparing us-spec cams to german ones.

I ran a Schleicher 324 (9.40mm cam lift, also 106 degr lobe centers) for some time on a 2,4. Very nice gentle cam. Lot of low down torque and kept pulling. I would say however that your and Tom's FAT cam is much more 'racy' , but for a larger engine probably behaves like the 324 did on a the 2,4.

Regards,
Walter

[TonyVWVWVW]

Well I don’t but I have a FAT 440 Webcam
It says it’s a 107e? Does anyone have any info or insight about this grind?