NissanForums.com :: Nissan Forum - View Single Post - Turbochargin' a 2002 SE-R

Jun 11th, 2002, 02:36 PM

For what its worth, I wouldn't turbocharge the QR25.

For one, so much for the factory warranty on the drivetrain.

Secondly, the QR is just not as boost-friendly as the SR20. The engine block is not as rigid, the piston design is drastically different, with the top ring land very close to the top of the piston. Any amount of detonation could very easily crack the top of the piston with the new design.

JMHO, take it as you will. If I could get the kind of HP that the QR25 produces out of my SR20 without a turbo, I'd stick to NA. But, the turbo on the SR20 is the great equalizer - and then some.

Good luck...

Jun 11th, 2002, 02:36 PM	#2 (permalink)
96BlkSE-R Posts: n/a	My Opinion For what its worth, I wouldn't turbocharge the QR25. For one, so much for the factory warranty on the drivetrain. Secondly, the QR is just not as boost-friendly as the SR20. The engine block is not as rigid, the piston design is drastically different, with the top ring land very close to the top of the piston. Any amount of detonation could very easily crack the top of the piston with the new design. JMHO, take it as you will. If I could get the kind of HP that the QR25 produces out of my SR20 without a turbo, I'd stick to NA. But, the turbo on the SR20 is the great equalizer - and then some. Good luck...