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1ViciousGSX
01-26-2006, 12:00 PM
If you think about a regrind, it will never get more lift than the original. If they are using stock cams for the blank, they aren't going to work great without a larger ratio on the rocker arm to produce more effective lift.Not sure if that statement is true. Think about why they are called "re-grinds". The reason for the shims is because the base circle of the cam is ground to a smaller diameter, to increase the lift of the cam in relation to the follower. If you make the base circle smaller, it makes the lobe bigger. The shims take up the difference.

Matt D.
01-26-2006, 12:05 PM
From what I've always understood is that a regrind is where they weld a cam up then grind it down to where it should be. Therefore the base circle and lobe wouldn't be all out of proportion.

Outlaw1
01-26-2006, 12:10 PM
Not sure if that statement is true. Think about why they are called "re-grinds". The reason for the shims is because the base circle of the cam is ground to a smaller diameter, to increase the lift of the cam in relation to the follower. If you make the base circle smaller, it makes the lobe bigger. The shims take up the difference.
You are correct.

JET
01-26-2006, 12:18 PM
Not sure if that statement is true. Think about why they are called "re-grinds". The reason for the shims is because the base circle of the cam is ground to a smaller diameter, to increase the lift of the cam in relation to the follower. If you make the base circle smaller, it makes the lobe bigger. The shims take up the difference.
That makes sense and would explain the shims. Hopefully they are getting them re-heat treated properly.

riderevolution
01-26-2006, 12:39 PM
I would not spend the money on those cams! Pay a little more and go fp's or hks!

1ViciousGSX
01-26-2006, 12:54 PM
I would not spend the money on those cams! Pay a little more and go fp's or hks!Agreed. :cool:

niterydr
01-26-2006, 01:07 PM
From what I've always understood is that a regrind is where they weld a cam up then grind it down to where it should be. Therefore the base circle and lobe wouldn't be all out of proportion.
That would be a "hardweld" cam.
It uses a "spray" welding technique. The regrinds are just like vicious mentioned, cutting down on the base circle. Therfore you need to shim your lifter, or in our case a HLA so the radio maintains similar to stock.
Case in point, my cams.
Going from .375" to .412" lift. I am being told to use a #10 washer (.030"). I'll be dialing out the factory overlap with aftermarket Cam gears.

PSI2HI
01-26-2006, 01:49 PM
I say just buy a HKS and be done w/ it and not have to worry about any problems.

Im sick of seeing all these threads everywhere about people talking up knock off parts and people saying oh their just as good your vendors are just trying to rip us off and all this non sence. I've had numerous customers bring in knock of BS and i'll just say 50% of it doesn't work from the start and another 25% fails w/in a few months.

niterydr
01-26-2006, 01:58 PM
I say just buy a HKS and be done w/ it and not have to worry about any problems.

Im sick of seeing all these threads everywhere about people talking up knock off parts and people saying oh their just as good your vendors are just trying to rip us off and all this non sence. I've had numerous customers bring in knock of BS and i'll just say 50% of it doesn't work from the start and another 25% fails w/in a few months.

Word to that. However, without continued research and development, who's to make new products?
Hell I bet buschur considers your FMIC kits knockoffs of his. (He did invent the FMIC right? ;) ).

TheBlizzard
01-26-2006, 02:04 PM
There are good ideas out there, the problem is that most people want to keep the cost of R&D low as well as materials. This to me is cutting corners and what suffers is the quality. You think the HKS cams are durable as well as perform good by accident? I am sure a lot research went into the cam line and I am sure corners were not cut to keep cost low and profits high. They took the quality route which in the end payed off huge for them with the cams for example. Yeah they are spendy but whats your time worth? If you have to pull out shitty cams every year and mess with them or replace them you aren't really saving anything by going cheaper.