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has anyone used one of comp cams thumper cams ? im thinking about tryin one on my 89. everything ive heard has been good.
 

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What your mods? If your engine is stock compression, a thumpr cam is no good for you, because the amount of overlap they have, requires a considerable amount of compression. Anything less than 10.5:1 and you'll have a turd, but they really like 11:1 or more. That cam profile is really no good, if you don't have some good aftermarket heads either. They suck with stock heads.
 

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no not stock its a gay alphabet cam. was in it when i got it
Gay alphabet cam...i have an e that was also in my car when i bought it but it ran fairly well i thought, good safe cam IMO.....how does you car run with 205's isnt that a pretty big head for a 302??
 

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Gay alphabet cam...i have an e that was also in my car when i bought it but it ran fairly well i thought, good safe cam IMO.....how does you car run with 205's isnt that a pretty big head for a 302??
With an alphabet cam, yea they are. Get the right cam in there and match everything else up and no, it'll scream.
 

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Discussion Starter #10
With an alphabet cam, yea they are. Get the right cam in there and match everything else up and no, it'll scream.
and after alot of research the thumper is also gay. i went with the tfs stage 1 and im really impressed with it. great idle , increadable pull down low. i havent had a chance to really get into it. just finished it two nights ago and its been raining since. i went with the stage 1 because ill be running a 150 shot and what ive read the stage 1 works better. and there is no issue of valve clearence.
 

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Just stay away from the Comp XE 270 and above, unless you like to hear valvetrain clatter. Going to change out the xe274hr soon, what a p.o.s...
 

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If you look at the (Rollin' Thunder Performer-Plus Hydraulic Roller) on edelbrocks site, it's an E303. Can't be that bad, whats the big hate with the ford cams? Should make a fun ride on the cheap, expecially when you get into an x or z cam.
 

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If you look at the (Rollin' Thunder Performer-Plus Hydraulic Roller) on edelbrocks site, it's an E303. Can't be that bad, whats the big hate with the ford cams? Should make a fun ride on the cheap, expecially when you get into an x or z cam.
there out dated....they were made back in the early 90s, cam tech has come along way sinse then.....the point is...that theres better cams out there for the same money
 

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Just stay away from the Comp XE 270 and above, unless you like to hear valvetrain clatter. Going to change out the xe274hr soon, what a p.o.s...
All the XE cams are noisy, because they have pretty aggressive ramp rates. Why does that make it a pos? There's nothing wrong with it, it's just the nature of the beast.

If you look at the (Rollin' Thunder Performer-Plus Hydraulic Roller) on edelbrocks site, it's an E303. Can't be that bad, whats the big hate with the ford cams? Should make a fun ride on the cheap, expecially when you get into an x or z cam.
lazy ramps, SADI core, junk. The XE270 is leaps and bounds better than any letter cam.
 

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Just stay away from the Comp XE 270 and above, unless you like to hear valvetrain clatter. Going to change out the xe274hr soon, what a p.o.s...
Xe270hr here and really like the cam so far. Like 69fastback said, valvetrain noise is going to be a little more noticable due to the aggressive ramp rates of the Comp XE series cams, but that far from makes it a P.O.S cam. This is not the cam to buy cheap valetrain components for either.
 
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