Someone pissed off Jake & Len, replicating LE heads |
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Someone pissed off Jake & Len, replicating LE heads |
davep |
Nov 25 2008, 02:07 PM
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#1
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914 Historian Group: Benefactors Posts: 5,195 Joined: 13-October 03 From: Burford, ON, N0E 1A0 Member No.: 1,244 Region Association: Canada |
a new thread on Air Cooled Technology:
http://forums.aircooledtechnology.com/show...23001#post23001 it was not a smart move on someones part. (IMG:style_emoticons/default/popcorn[1].gif) |
TJB/914 |
Nov 26 2008, 12:51 PM
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#2
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Mid-Engn. Group: Members Posts: 4,358 Joined: 24-February 03 From: Plymouth & Petoskey, MI Member No.: 346 Region Association: Upper MidWest |
Hi All,
I really enjoy these posts. Very interesting & informative. Inquiring minds would like to know something for the record. We hear about these LE heads (new) generation of improvements?? Is this based on dyno results?? Customer feedback?? Or failure rates?? I would like an explaination of the process so we understand these claims. This is not a criticism, but a technical question. Tom |
Jake Raby |
Nov 26 2008, 01:16 PM
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#3
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Engine Surgeon Group: Members Posts: 9,398 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
Hi All, I really enjoy these posts. Very interesting & informative. Inquiring minds would like to know something for the record. We hear about these LE heads (new) generation of improvements?? Is this based on dyno results?? Customer feedback?? Or failure rates?? I would like an explaination of the process so we understand these claims. This is not a criticism, but a technical question. Tom Tom, The changes are made based on all things you have mentioned above. As we experience more and more and I test different engines with various changes that Len works on with the CNC tool path we find new powewr and new longevity/ reliability as a byproduct. The changes from the first genberation of LE 200 heads to the latest are vast, but some of them are not able to even be noted by the human eye, and some of them only Len knows. Len makes changes based on flow data from each batch of heads as well as the feedback and data that I supply to him as we assemble and ytest LE equipped engines. Thats where we have the winning team, we use what we are seling and thoroughly understand it- thats why when you had issues I found them hard to believe. The overall goal for Len is to leave as much material in the port to support the seats, but also attain the best flow characteristics, this is what has been refined more than anything. FWIW we have NEVER experienced a failure with any LE cylinder head, there are no "failure rates" at the present time. In fact I have never experienced a cylinder head related failure in the entire time that Len has been prepping my heads and thats including some engines that should have failed and some that were on the edge so badly that we expected them to fail. There are over 150 pair of LE heads in service right now all over the World, to date we have had ONE complaint. ONE. BTW- I didn't start this thread, as someone suggested above. i started a thread on my private forums that was migrated here- not by me. This post has been edited by Jake Raby: Nov 26 2008, 01:21 PM |
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