zrxdean
Needs a job
Posts: 2225
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posted April 10, 2005 09:08 AM
It was the best of times, it was the worst of times...
Finally broke my best ET on spray (8.77) last night at Gainesville. Ran a 8.69 @ 168 on the trailer, and backed it up with a 8.67 @ 169 (5.79 @ 135) next pass. WooHooo!! Still room for improvement in the clutch and boost controller, but I was pretty damn happy. Not bad for a brick with a small motor, eh?
Third pass it ran a 9.00 @ 164 spinning at the line, and I heard a slight tick in the return road. Oil pressure good, but the mph drop off got me worried. Loaded up and got home - bearing material in the pan. Not good. Not sure what happened. I'm taking it apart today to see what I can see. Once more into the breech. Hopefully it'll be back to gether for next weekend's SEMDRA race. Anyone have any ZX11 rod bearings floating around their shop?
Dean
  
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your car is slow
Needs a job
Fuck Nitrous...Got Boost?
Posts: 4089
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posted April 10, 2005 09:32 AM
;lakjsdf;laskjdf;lkjasd;flkjasd;lkfjasdfjaskld
nooooooooo
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Do not taunt happy fun ball!
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osti33
Needs a job
Posts: 2973
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posted April 10, 2005 03:04 PM
OH NOOOOO!!!!
Sorry to hear about you luck. Congrats on the new personal best.
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zrxdean
Needs a job
Posts: 2225
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posted April 10, 2005 06:55 PM
#4 rod bearing was melted - journal looks pretty bad. I'll have it and the rod checked for cracks tomorrow, but it looks like I'm out of commission for a while. #1 was starting to fail, but 2, 3 and all the crank bearings were perfect - strange.
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MadMike
Moderator
FEAR THE BLACK FLAG!!!!!!!!
Posts: 6579
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posted April 10, 2005 08:03 PM
Dude that SUCKS!!!
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200-MPH CLUB MEMBER!
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RAC4IT
Needs a job
Bergie
Posts: 3009
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posted April 11, 2005 04:19 AM
How many passes / miles on this build? Any preliminary speculation on the cause of early failure?
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zrxdean
Needs a job
Posts: 2225
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posted April 11, 2005 10:12 AM
Crank and rod are toast. Spare crank going to Falicon for blueprinting, and a spare rod will be recon'd.
I'm not sure what the cause was - it had plenty of oil, oil pressure was good during burnout, and at idle after the pass. On the last pass, I did develop a fuel leak from one of my lines, so it's possible that my fuel pressure was compromised, and I leaned out and detonated. But the top end looks great, no melted electrodes or scoured piston tops, skirts and bores are perfect. Typically #3 rod bearings go on these motors, and #3 was fine, so I think something other than oil starvation was the trouble.
This motor had about 40 passes and about the same number of pulls on the dyno. Near redline of one pull last week, the boost line popped of the wastegate, boost spiked to 45+ pounds before I could chop the throttle (366hp). I could've hurt it then, but it ran 2 passes Wednesday and 2 passes Saturday at 168/169mph, so it seems unlikely that it would've held on that long before crapping out.
I'm gonna have the banjo bolt feeding oil to the head restricted a bit, and shim the spring on the refief a bit more. While I'm in there I'm tapping the cases for some beefy head bolts, and maybe install a clutch access port. Falicon will be a couple weeks with the crank, so I will miss the first SEMDRA race. Rrrr.
Dean
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TurboBlew
Moderator
BUSY DOING THE SCHIAVO
Posts: 4590
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posted April 11, 2005 11:35 AM
Dean.... you need a bike to borrow for SEMDRA? Cant have you fall outta points for being down.. 
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Official Charter Member of the RIDERS OF KAWASAKI MEMBERSHIP REVOCATION CLUB
Also a BadAss Internet Forum Moderator 4 Hire!! Come at me brah!
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zrxdean
Needs a job
Posts: 2225
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posted April 11, 2005 01:05 PM
 Edited By: zrxdean on 12 Apr 2005 22:00
Wow... that's very kind Steve. I can drop one race, but I'd rather not miss this one if I can avoid it. Gimme a call when you get a chance or PM your phone # - edit.
Dean
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Speedfab
Novice Class
Posts: 79
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posted April 11, 2005 03:18 PM
You can also drive the Bus if you need it Dean.
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your car is slow
Needs a job
Fuck Nitrous...Got Boost?
Posts: 4089
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posted April 11, 2005 03:54 PM
gee..I wonder what he will choose.... 
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Do not taunt happy fun ball!
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matt sterbator
Pro
Hiding in the bushes
Posts: 1367
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posted April 11, 2005 04:19 PM
The Kaw, duh !!!
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Speedfab
Novice Class
Posts: 79
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posted April 11, 2005 05:34 PM
Dorks.
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your car is slow
Needs a job
Fuck Nitrous...Got Boost?
Posts: 4089
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posted April 11, 2005 05:37 PM
I gotcher dork right here nuggah.
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Do not taunt happy fun ball!
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zrxdean
Needs a job
Posts: 2225
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posted April 11, 2005 08:01 PM
Wow... you folks are too kind. Steve has generously offered his 12 for Saturday, but Tracy I really appreciate it. Next time my motor breaks - I'll call :P
Dean
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entropy
Moderator
Posts: 8671
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posted April 11, 2005 11:10 PM
Dean, sorry to hear about yr bearing woes; I can relate...
Most excellent mph/et!!! That's what counts!
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This moderator uses moderation in moderation
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zrxdean
Needs a job
Posts: 2225
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posted April 12, 2005 11:32 AM
I agree Karl, I'm trying to keep that in mind as I clean parts.... If it had run SLOW and then broke - I'd be a little less sanguine about the whole thing.
Steve is the man of the year as it looks like I will be riding his trusty 12 at tomorrow's TNT at Gville and this Saturday's SEMDRA race in Jackson, SC. Yeehaw! Saved by the board!
Anyway, after doing some more investigation, it looks like my rod clearances, which were all within spec according to the manual (.42-.70mm) may be too tight for a built motor - Steve Rice specs his at .003" - .76mm. I had mine from .45 - 60mm. I will set them all as close to .76 as possible, restrict oil to the head, and shim the pressure relief to 100lbs. And try again.
Dean
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zrxdean
Needs a job
Posts: 2225
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posted April 12, 2005 11:41 AM
Make that .042, .070, and .076mm.
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matt sterbator
Pro
Hiding in the bushes
Posts: 1367
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posted April 12, 2005 03:14 PM
So that's why Steve wanted my 46 toofer for the Marchesini
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zrxdean
Needs a job
Posts: 2225
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posted April 12, 2005 09:04 PM
Yep - i just got back from Steve's, and this bike is beautiful. Red '00, Marchesini wheels, Pro Tek rearsets, Scotts Damper, Akrapovic pipe, pristine shape. Stock wheelbase, 17/48 gearing - should be a handful. Thanks again Steve.
Dean
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your car is slow
Needs a job
Fuck Nitrous...Got Boost?
Posts: 4089
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posted April 12, 2005 11:42 PM
and Teh Nawz?
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Do not taunt happy fun ball!
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matt sterbator
Pro
Hiding in the bushes
Posts: 1367
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posted April 13, 2005 02:22 AM
and the 1375?
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Nukedog
Expert Class
Posts: 449
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posted April 13, 2005 03:26 AM
Good luck Dean. And good job Steve for helping out.
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02 Busa...Turbo...
09 YZF-R6S...
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zrxdean
Needs a job
Posts: 2225
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posted April 13, 2005 06:26 AM
i was under the impression that motor was a drug-free virgin - at least he didn't tell me where the button was
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zrxdean
Needs a job
Posts: 2225
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posted April 13, 2005 08:21 PM
MAN riding a stock wheelbase bike is tough! It powers the front end up at the top of first every time, I was a short-shifting fool all nite. I got nine passes from 7:45 to 10:45 - there were very few cars there. First pass 10.05, second 10.48 wheelie, 9.92, 9.95, 9.92, 10.02, 9.96, 9.98, 9.96, all between 144-145mph. Awesome bike, I'm not doing it justice, but it's a blast to ride. Once again, thanks Steve.
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