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#1 |
Member
Join Date: Jan 2004
Posts: 202
Likes: 9
Liked 225 Times in 30 Posts
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I ask NHRA to make roller lifters an option 3 years ago, no response.
Just the cost and availability makes it a no brainer. Maybe if more racers send emails something will happen. |
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#2 |
VIP Member
Join Date: Oct 2002
Location: On a hilltop in Pa.
Posts: 4,487
Likes: 3,588
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Not if I know Drag Racers! Next you'll see more wiped and broken cams, valve and valvetrain and spring failures. Availability maybe. Cost? Bull.
__________________
Billy Nees 1188 STK, SS I'm not spending 100K to win 2K |
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#3 |
Member
Join Date: Jun 2007
Posts: 162
Likes: 0
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If the ceramic foot lifter always stays in contact with the cam the lobe, then the ceramic foot is a lot less likely to shatter. Issue (as far as I'm concerned) is that the optimal performing stocker camshaft will incorporate some amount of loft (cam/lifter separation for increased dynamic lift) incorporated into the design, therefore I'd only consider a steel/DLC coated flat lifter for a stocker application. Some of you may even be lofting and don't know it, or might find out when you have a failure.
In addition to the Precision steel lifters mentioned, I've used the Ferrea lightweight steel SBC flat lifters with the foots polished, successfully in a 8200 rpm SBC on a nitrided cam core. |
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