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RENAULT 21 Turbo 175hp J7R 752 1987-1990
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RENAULT 21 Turbo 175hp J7R 752 1987-1990
J7R-752 (R21 Turbo) Forged Pistons O88/88.5, Pin 24, CH 38.7 40.5, Compression ratio 8.0 8.1. Table, engine compatibilities, vehicles and OEM info.
The 175hp RENAULT 21 Turbo, built from 1987 to 1990, uses the 2.0 turbo J7R 752. This page carries a single active reference.
It is the WOSSNER forged piston set for the J7R 752, offered in two bores: 88mm with an 8:1 compression ratio, or 88.5mm with 8.1:1, a low ratio suited to forced induction.
No con rod, bearing, gasket or head part is linked to this engine so far: building the J7R here starts with the pistons.
