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04-04-2010, 06:17 PM | #31 |
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Re: DP #24 Engine failure....
Nope....oddly no not really.....a little runout more than it had before but not "bent"
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Chris "Drooze" Wertman 3132 (F/SA 2009 Challenger Drag Pak #24 with a best of 10.59) |
04-04-2010, 06:28 PM | #32 | |
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Re: DP #24 Engine failure....
Quote:
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Art Leong 2095 SS |
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04-04-2010, 06:41 PM | #33 | |
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Re: DP #24 Engine failure....
Quote:
RPM kills parts..........and the dangers go up exponentially as the rpms increase......I don't see anything much different on that engine than any other engine. Small block Chevy Stockers don't generally turn 8000+ rpm although some might.....and all would if they could and stay in one piece....and the engine continued to make more power at those higher rpms. I am not so sure that 8000+ rpms is a good way to race and expect to make it thru multiple races. Generally staying in one piece is required to be successfull at racing. Stocker engines generally last a long time. Every run is not a record attempt on the ragid edge..........or one where you attempt to rotate the Earth......If you wish to race like that.....more power to you.......but making it to the next round is always a goal.....It's simple...ya can't race if your broke.....
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Rich Biebel S/C 1479 Stock 147R |
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04-04-2010, 06:46 PM | #34 |
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Re: DP #24 Engine failure....
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04-04-2010, 06:59 PM | #35 | |
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Re: DP #24 Engine failure....
Id like to run it lower and with what I think we have as a torque advantage Im hoping we will, my target was set it to 7500....and go from there. at 7200 shift point, (I think) stepping on the limiter all the way in 1 and 2 (set shift and limiter to same on accident) I ran a 10.87 with a soft, soft bad lauch (driver error) sooooo.....dono....
The 8k on this "spin" was unintentional....it was an error.... I agree, I do know we will start out trying a heck of a lot lower , but knowing what others are doing, and they have experienced these well.....Irv Johns, Duell, and others its not like theyre fresh, GRANTED they had better more experienced builders build there motors.....so... Quote:
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Chris "Drooze" Wertman 3132 (F/SA 2009 Challenger Drag Pak #24 with a best of 10.59) |
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04-04-2010, 07:03 PM | #36 |
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Re: DP #24 Engine failure....
I heard different from a good source. Even if that were true, my suggestion to you is the same as it was for Atlanta, run a little on the soft side until you fully understand your combination.
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04-04-2010, 07:25 PM | #37 | |
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Re: DP #24 Engine failure....
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I plan to/hope to....that was why I pulled it back on the dyno to 72 after engine #1.....I should have left the limiter at 8k.....not 82 as it was...I dont think it would have mattered in this case even at 78 it could/would have spun up another 200 free.... But at Houston (IF we get there...) well....light and easy...gotta get it to Vegas for the old man to blow up (hell LOVE that when he read it tommorow....trust me....ok maybe not...lol)
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Chris "Drooze" Wertman 3132 (F/SA 2009 Challenger Drag Pak #24 with a best of 10.59) |
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04-04-2010, 08:18 PM | #38 |
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Re: DP #24 Engine failure....
When you loose a rod bearing the extra clearance between the crank and whats left of the bearing and rod start acting like a slide hammer and all the damage you have is the results. This slide hammer effect snaps pins and pops the pin bosses out of pistons. It can also snap rod bolts. hummm 8,000 rpm = 133.3333 times a second that the slide hammer hits. Looks to me like you simply lost a bearing.. show us a picture of what is left of the bearing.. that might be all we need to see.
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Adger Smith (Former SS) |
04-04-2010, 09:20 PM | #39 |
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Re: DP #24 Engine failure....
I didn't see any spun bearings in the pics on the site the link goes to?
Are there more pics? |
04-04-2010, 10:01 PM | #40 | |
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Re: DP #24 Engine failure....
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All the rest of the journals are as clean as can be. The engine drank garbage, and its hard to tell on the bearings (to me) what was caused by that and when. Ive got another "issue" now that well isnt a product of anthing other than incorrect information. Note to self, when something "smells" bad spend the time to dig a little deeper not matter what everyone says (not everyone here) but it could have been a "misunderstanding", and a typo on Mopars part, or a change a bulletin wasnt recieved on.....and well.....a difference in early or late/other DP motors ? wont know till I talk to Stanton tommorow........no "good" solution that isnt really a "hack" in the time I have to make it to Houston. 1 chance....1 very small chance..... Oh well...itll be "right" in the end just not by tommorow.
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Chris "Drooze" Wertman 3132 (F/SA 2009 Challenger Drag Pak #24 with a best of 10.59) |
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