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Spec.B Coilover track performance question


wpmarky

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I think I'd be sleeping outside for a month and not get 'any' for even longer if my 2 yr old motor gives up the ghost.

 

Bigger radiator, FMIC, EGT gauge, better eye on oil consumption, and a conservative race tune... maybe I'll get lucky.

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  • 1 month later...
I have no idea what intake temperature is required to melt engine internals - but I know it happened to me.

 

After a season of pretty hard running on road courses, I noticed increasing oil consumption. Fearing a ringland problem, I did a leakdown test that showed excessive blowby. When we tore down the engine, we found no broken ringlands or other evidence of detonation. It just looked like everything got too hot with burned valves and warped piston aprons. We concluded that I was pushing my smallish (40BB) turbo outside of its efficiency range thus generating high intake temps that the Perrin TMIC couldn't handle.

 

Road racing is much more stressful on a motor than is any kind of street driving or drag racing. In road racing, you're doing repeated long WOT runs and are never really giving the engine a chance to cool down.

 

I rebuilt the motor with Wiseco pistons and tuned for water/meth injection and 100 octane gas. No problems since.

I reb

 

Did you dyno your car with the 40bb/Perrin-TMIC combo after meth?

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