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View Full Version : magnum cam specs 400ex


sc400ex_rider
03-21-2007, 02:04 PM
just in case anyone else ever wanted to know. wild grind .......
lift .378 in .378 ex
duration 274 in and 274 ex
springs and guides rec
hard to get any info on this stuff .....wtf
GPracer2500
03-21-2007, 02:28 PM
That is aggressive. The ramps must be vicious with all that duration [shrug]. Curious where you got that info from and what the cam is called exactly. Is there only one model from Magnum?

I've tired to find info on them and always came up with zilch. I assumed they were just Chinese-made copies of other cams but I guess not, judging by those numbers.

thanks
Honda#4
03-21-2007, 03:04 PM
That cam with that lift and duration is higher than a Stage 3 Hotcam. Theres no way a atv could handle that except with the best of everything.
sc400ex_rider
03-21-2007, 03:22 PM
http://www.dirt-deals.com/cgi-bin/dirtdeals/01252.html?id=rWcGRT2M

i dont know if that link will work but you can get there i hope. i called there and he had the specs. i ask if magnum had a web site or tech line and he said they dont deal with the public. mag also have a rev box and 2 ignition advance keys (pump gas and race gas) yes that is alot of cam for 99 dollars i just wish i had a quad that could handle it. they have a 1-800 number if you want to call. i was stunned and made him repeat it twice:D :D late
Nac's22
03-21-2007, 03:41 PM
i have that cam in my 440 it came in a kit called the scary fast kit with the magnum rev box
Honda#4
03-21-2007, 03:49 PM
You would think that only a 460 or a 500 stroker motor could handle that Cam.

TRR hows the power of that Cam with the 440, I would imagine that is strictly a top end cam or a combination of every cam stage made and then some.
Nac's22
03-21-2007, 04:24 PM
dude it pulls like no other ex i have ever ridden. i race flat track with it and i beat 450's all day long. and there are some pretty worked 450's. so far the only thing i couldnt keep with is a full lrd 250r with a 285 kit. its a mid to top cam and i was very impressed with it. i had to go to powroll (i think thats them) and get hd valves and valve springs tho....... it did blow up once due to a valve and valve spring failure. very impressed though.