rhoads adjustable lifters
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Elder User
Joined: Dec 2007
Posts: 526
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From: fallbrook ca.
rhoads adjustable lifters
what are the pros and cons of these lifters? ive only heard good things about them? i want run a larger cam in my truck without poopin out the bottom end.
the cams im lookin at are around 270-280 duration and .500-.520 lift.
the cams im lookin at are around 270-280 duration and .500-.520 lift.
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Elder User
Joined: Dec 2007
Posts: 526
Likes: 0
From: fallbrook ca.
at low rpms it doesnt pump up to its full potential, thus making a radical cam more tame but after 2000rpms they pump up giving the cams full lift and duration, basically it broadens the cams power band.
Cargo Master
Joined: Aug 2000
Posts: 2,931
Likes: 12
From: SW Michigan
variable duration
CW, I believe that Rhoads calls them 'variable duration'. They work exactly the way Rhoads says they do. It is interesting to here my truck warm up with them in the 390. When the oil is cold and gooey, the don't bleed at all. They give you every bit of lift an duration that the cam offers. That means a rather raspy idle. Now thats just mine because I like to run 15 or 20-50 oil. If you don't run something that thick, it won't take as long. Once the engine and oil are warm, they bleed plenty and the oil smooths out considerably. The only drawback they have is the noise. They have the sound of a solid lifter cam with way too loose of lash. I'm mostly used to it now, but they are very very noisey. Some guys get tired of the noise and change them out for something else. Which cams are you looking at ? DinosaurFan, on an old 'puter work threw out
Elder User
Joined: Jun 2003
Posts: 686
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From: Edgewood, Wa
Yeah, to me they sound like the motor is out of oil, and I recieved alot of " hey dude! yer motors gonna blow " comments pulling into gas stations and etc.
They did allow me to run a 294/304 degree cam on the street, in a 70 Buick GS. an under hood insulating blanket of some sort may help.
If noise isnt an issue, they do work great!
They did allow me to run a 294/304 degree cam on the street, in a 70 Buick GS. an under hood insulating blanket of some sort may help.
If noise isnt an issue, they do work great!
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