|
|
|
|
Original Message
|
| Surpised ! |
| By John - 02/22/2005 9:00:57 PM; IP 142.177.110.177 |
| Sometime in the last few years, I read a letter in the Professor Overdrive column of the Summitt Racing catalog that asked about fitting roller rockers to a fleet of work-trucks. The answer surprised me. Basically, the answer was that durability was a concern and that they wouldn't last up to high mileage. I think the estimate of 35,000 miles was in there, but can't remember for sure. I found it surprising as roller rockers are designed to reduce side loading of the valve stems (and of course, that means less friction and consequently a marginal increase in HP). If they are intended to reduce wear, why would they design a roller rocker that wears out so prematurely? An oil pan full of rocker needle bearings just can't be a good thing. I've never used them, so I can't speak from experience. I would be pleased to hear from those who have and what endurance they found. |
|
|
This thread, so far...
|
|
|
|
Post A Response
|
|
|
|
|
|