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When choosing a camshaft, which would ultimately be a better choice - reground or brand new?? Im after longer life and durability! Its an XU-1 cam i have, i went for a re-grind to keep costs down a bit! Just wondering....
Keith
Don't bag the UC, it might just be the car that kicks ur ass!!
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New is always better, but people have been using reground cams in Holden sixes for years. I don't know how they get the case hardening back on the lobes though. Just make sure that when using a reground cam and non-adjustable rocker gear (like 173 and 202 |
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Ok... I was under the impression that "taylor made" cam bearings - which im using, cater for the base circle issue... Maybe im wrong??
Im running adjustables - its ok anyway!
Don't bag the UC, it might just be the car that kicks ur ass!!
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just a personal choice but stick with new |
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That's the bearings you are talking about. The base circle 'radius' is the radius of the cam lobe minus the ramps, ie when the valve is shut. Obviously when you grind an original cam lobe to make a lumpier version, you have to reduce the base circle in or |
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My mistake - mis-interpretation of terms! Another silly question, only new to the cam world!! Ive been told they add metal to an existing camshaft before performing a grind when it comes to using an old cam for a re-grind! True or False??
Don't bag
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That can be done, but I've never seen it done on a Holden 6cyl cam. Surely it would be cheaper nowadays to get a new billet than to bother welding up lobes. Talk to Wade camshafts if you can find them. George Wade did most of the Holden camshafts in the g |
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I got the exact same profile camshaft as the new one - but for $80 less, so i donno what the deal is there!!
I was told they melt steel onto the existing cam and then heat treat it and grind it...
Don't bag the UC, it might just be the car that kick
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Get a new cam from a reputble grinder. Wade used to make good red motor cams. I'm using a Crow one in a red motor I'm doing. Although I don't do many red motors these days. I'd rather use adjustable rockers, preferably rollers for reliability. Also make s
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The cam has arrived! Dynotec camshaft, anyone heard of this brand before?
Here's the specs, what's your opinions on how beasty it is!!
Note; same for intake and exhaust - all figures that is...
Duration - In & Ex 280
0.050 Duration - In & Ex 21
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