Martin Norris
Well-Known Member
- Joined
- Dec 31, 2016
- Messages
- 490
- Reaction score
- 441
- Points
- 63
- Age
- 60
- Location
- Victoria
- Members Ride
- VX Calais 5.7
Hey Professor, not enough poke in your MSE for you? Might be worthwhile having a read of this if considering cam upgrades;Good to hear, B66. Even though I'm on the record espousing the eschewing of modifications on the limited edition, best-ever Holdens, I must say I am tempted to do similar to yourself. I think the W407 pack is great - I know I have said that the "407" bit is somewhat fanciful - I still love the actual result regardless of the true number. And the more I think of it, I ain't gonna be selling my MSE (hopefully), so the investment value is essentially zero. Therefore, why not hot rod it a little?
I drove a W407 a while back and loved it, I think the cam is about right for a daily driver/interstate cruiser. Some may disagree. I may even research more fully the Harrop cams and the Comp cams. I know the W407 is a little pricey, but the over all result with the fascia/OTR etc is pretty good, and for anyone non-mechanical it is a safe and effective solution.
Tell me, if you haven't already done so, describe what happens from a standing start if you just floor it - does it light 'em up, or is the modest low end torque insufficient to stress the 275s out back? And describe what happens when you drop it back at 100km/h, flat to the floor, passing a truck say. Thanks in anticipation....when I drove the W407 I wasn't thinking about similar going in my MSE.
http://www.hotrod.com/articles/hrdp-1007-gms-variable-valve-timing-system-performance-test/
ignore the reference to an engine being an air pump, its a too commonly used over simplification of an ICE
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