Quote:
Originally Posted by 745 TurboGreasel
How do you all feel about the polymer impellers?
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I own and operate a Euro auto garage. The plastic impellers crack and as a result slip and do not pump. At times they shatter. The stamped steel ones come loose also. Cast impeller is best. VW uses plastic in all of their OE pumps.
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83 D24T 245 .50mm oversized pistons, 3 inch exhaust, but otherwise stock except the boost is turned up to 20 psi. 81 VW Caddy 1.6TD with some minor head work, and big exhaust.
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