[Test] Why Revolvers are hit or Miss....
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From: So. Cal (LA County)
Cam doctor is a a machine that measures the lobes on the cam for lift, icl, lsa and pretty much any other measurement you want.
Most Race Engine Builders will have one.
Most Race Engine Builders will have one.
i am reading that you tested the open/full spring pressure with 13mm of lift, but coil bind was achieved with 11.4mm lift 
Good luck with that. The manufacturer up and vanished like a fart in the wind.
Noogles, while I commend you for the test, I wonder how many people actually used the springs supplied by Revolver? If they're still "hit or miss" without that variable then what? Pd1 is the most infamous example of Revolvers not wanting to play nice. I don't remember if he used their springs in the first place. Nevertheless, solid work.
I wish you could throw some Tomei 260/270/280 Procams on the cam doctor. A little birdie told me that Revolvers, Pipers, and Tomeis share DNA...
Noogles, while I commend you for the test, I wonder how many people actually used the springs supplied by Revolver? If they're still "hit or miss" without that variable then what? Pd1 is the most infamous example of Revolvers not wanting to play nice. I don't remember if he used their springs in the first place. Nevertheless, solid work.
I wish you could throw some Tomei 260/270/280 Procams on the cam doctor. A little birdie told me that Revolvers, Pipers, and Tomeis share DNA...
More so the other 2 being modeled after the Tomeis.
In truth, I wouldn't mind getting my mitts on a pair of Piper's UR cams. A few people on lancerregister love them as they seem to give a beefy midrange. It seems those UK boys have a few cool toys that we just don't get over here. The cost is just too prohibitive.
Case in point:
This Sucker
They must like quick spool and torque in the UK. I wonder how this would compare to the FP Green?
Thread Starter
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From: So. Cal (LA County)
More so the other 2 being modeled after the Tomeis.
In truth, I wouldn't mind getting my mitts on a pair of Piper's UR cams. A few people on lancerregister love them as they seem to give a beefy midrange. It seems those UK boys have a few cool toys that we just don't get over here. The cost is just too prohibitive.
Case in point:
This Sucker
They must like quick spool and torque in the UK. I wonder how this would compare to the FP Green?
In truth, I wouldn't mind getting my mitts on a pair of Piper's UR cams. A few people on lancerregister love them as they seem to give a beefy midrange. It seems those UK boys have a few cool toys that we just don't get over here. The cost is just too prohibitive.
Case in point:
This Sucker
They must like quick spool and torque in the UK. I wonder how this would compare to the FP Green?
Thread Starter
Evolved Member
iTrader: (-1)
Joined: Jan 2006
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From: So. Cal (LA County)
More so the other 2 being modeled after the Tomeis.
In truth, I wouldn't mind getting my mitts on a pair of Piper's UR cams. A few people on lancerregister love them as they seem to give a beefy midrange. It seems those UK boys have a few cool toys that we just don't get over here. The cost is just too prohibitive.
Case in point:
This Sucker
They must like quick spool and torque in the UK. I wonder how this would compare to the FP Green?
In truth, I wouldn't mind getting my mitts on a pair of Piper's UR cams. A few people on lancerregister love them as they seem to give a beefy midrange. It seems those UK boys have a few cool toys that we just don't get over here. The cost is just too prohibitive.
Case in point:
This Sucker
They must like quick spool and torque in the UK. I wonder how this would compare to the FP Green?
Thanks for posting this data. It supports the theory of questionable quality control on Revolver products.
I wonder if this mismatched spring pressure issue has anything to do with the noise that many people hear coming from the valvetrain when the cams are set to 0/0 (and which goes away when the cams are retarded).
Yep. I was using the Revolver springs/retainers on my VIII when I had these cams installed.
Thanks for posting this data. It supports the theory of questionable quality control on Revolver products.
I wonder if this mismatched spring pressure issue has anything to do with the noise that many people hear coming from the valvetrain when the cams are set to 0/0 (and which goes away when the cams are retarded).
Thanks for posting this data. It supports the theory of questionable quality control on Revolver products.
I wonder if this mismatched spring pressure issue has anything to do with the noise that many people hear coming from the valvetrain when the cams are set to 0/0 (and which goes away when the cams are retarded).
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I might sell them, i might just keep them for some more R&D
i have revolvers. with supertech dual valve springs and ti retainers.
sean ivey tuned my car
375hp/380trq
93 oct
stock ecu.
24psi
11.2/3 afr's
how do i know if my cams are good or crap???????
sean ivey tuned my car
375hp/380trq
93 oct
stock ecu.
24psi
11.2/3 afr's
how do i know if my cams are good or crap???????
Given the aggressive ramps of those cams, I doubt they will tolerate anything less than full-on-spec springs. Springs that don't keep valvetrain action true will reduce power (among other things).