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2 definitions by MikeJones818

 
1.
Refering to when a car is producing enough exhaust to spin the the turbochargers turbine fast enough to create noticeable boost.
My GT30R turbo spool up at about 4,500 RPM.
by MikeJones818 June 10, 2006
 
2.
A piston engine which has a displacement of 6.0 liters or more , often in the form of a V8.
The LS7 in my car is a big block, it has more then 7 liters in displacement.
by MikeJones818 May 03, 2006