Pretty Bad Day At the track

View previous topic View next topic Go down

Pretty Bad Day At the track

Post by Brian Degulis on Sat Feb 27, 2016 6:10 pm










The remains of my LS3


Brian

Brian Degulis

Posts : 22
Join date : 2015-06-10

View user profile

Back to top Go down

Re: Pretty Bad Day At the track

Post by XL22 on Wed Mar 02, 2016 8:41 pm

Wow. Are you okay? Any shrapnel come into the cockpit?

Any idea what caused it? Oil or fuel starvation, over-rev?

XL22

Posts : 88
Join date : 2015-06-05

View user profile

Back to top Go down

Re: Pretty Bad Day At the track

Post by Brian Degulis on Thu Mar 03, 2016 7:26 am

No Damage to me or the car. One car behind me hit the oil and went into the wall but he was OK also and his car was not to badly damaged.

As best I can tell the timing chain broke pistons hit open valves rods broke and that caused all the damage. This happened at the end of the back straight at Palm Beach. So around 150 MPH and 6500 RPM. With all that momentum and shrapnel inside there was nothing left to save.

New crate engine is in and tuned. I'll be at Roebling Road in GA this weekend and see how it goes.

Brian

Brian Degulis

Posts : 22
Join date : 2015-06-10

View user profile

Back to top Go down

Re: Pretty Bad Day At the track

Post by comled on Thu Mar 03, 2016 12:55 pm

Holy mackerel, that's impressive. Glad you and the car are OK other than the damage to the old engine.

-Dave

_________________
2015 Stalker Classic R/L26 in progress
2015 Nissan 370Z
2010 Triumph Bonneville T100
1977 MGB
1973 Norton Commando MkII Interstate
1960 Hammond A100
1949 Ford 8N
avatar
comled

Posts : 124
Join date : 2015-10-07
Location : New Hope, PA

View user profile http://comley.us

Back to top Go down

Re: Pretty Bad Day At the track

Post by Ted FM 13 on Wed Mar 09, 2016 11:38 pm

Brian Degulis wrote:....... So around 150 MPH and 6500 RPM. With all that momentum and shrapnel inside there was nothing left to save.

New crate engine is in and tuned. I'll be at Roebling Road in GA this weekend and see how it goes. Brian

Wow, you dont' mess around do you? Shocked And new motor in already. cheers Is 6500 where the LS3 should red-line? For my 3.8 SC V-6 I had heard that 5500 RPM was a safe/reasonable red and that's where HP and torque top out for my car. With a Tremac 5 speed out of a 2000 +/- Camaro.

avatar
Ted FM 13

Posts : 84
Join date : 2015-11-27
Location : Sacramento CA

View user profile http://tidlof.wix.com/shoe-string-racing

Back to top Go down

Re: Pretty Bad Day At the track

Post by Brian Degulis on Thu Mar 10, 2016 6:58 am

The LS3 comes with the rev limiter set at 6800. If You hit the rev limiter the recorded highest RPM will be 7000. I hit the rev limiter a lot on the old engine although it appears that had nothing to do with the failure. On the new engine I had it set at 6500. After using the car on track and realizing how often I'm at or above 6500 I changed the differential from 3:73 to 3:42. I probably won't like it but I need to reduce RPM.

Brian

Brian Degulis

Posts : 22
Join date : 2015-06-10

View user profile

Back to top Go down

View previous topic View next topic Back to top

- Similar topics

 
Permissions in this forum:
You cannot reply to topics in this forum