Rod failure

Forum for general discussions on engine tuning, not specific to a particular motec ECU

Rod failure

Postby Martin on Mon Jun 28, 2010 9:32 pm

Its last moments.......


K20, GT35R, M800
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Rod failure
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Martin
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Re: Rod failure

Postby xpro on Thu Jul 01, 2010 10:07 am

what was the cause? cheers
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Re: Rod failure

Postby Martin on Fri Jul 02, 2010 10:50 pm

A big-end bolt failed.....engine has done about 2000Km with a RPM limit of 8600Rpm.

Mostly track use.
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Re: Rod failure

Postby Alex B on Thu Jul 08, 2010 8:40 am

Hi Martin,

Which conrods and crank are used in the engine?
Whats the rod bearing oil clearance?
What oil used and its running temp?
What is the engine torque and boost?

Cheers
Alex
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Re: Rod failure

Postby Mazi on Thu Jul 08, 2010 8:55 pm

Drivers always have to push the throttle to the bottom after engine explosion. Isn't it strange? :mrgreen:
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Re: Rod failure

Postby Martin on Fri Jul 09, 2010 4:28 am

Alex B wrote:Hi Martin,

Which conrods and crank are used in the engine?
Whats the rod bearing oil clearance?
What oil used and its running temp?
What is the engine torque and boost?

Cheers
Alex



Rods = Eagle
Pistons and the rest im not sure...
Oil Running temp......use to be 110`s in 10lap race but bigger cooler was fitted and also position and ducting changed. Brought it down to high 70`s
Boost = 200KpaA
Overboost button = 240KpaA for 15 sec`s


200KpaA makes just over 300Kw on Dynapack at 86KpaA altitude (1400m)
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