I was planning on using twin ZL1 pumps on my car much like Stielow did on one of his recent builds, but depending on your system backpressure a single Pierburg CWA100-3 or CWA150 might move just as much water as the twin ZL1 pumps while also taking up less space, needing less plumbing, and having the ability to control their speed via PWM input... and it would be cheaper too.
Based on tecomotive's page with the current exchange rate a CWA100-3 with connector kit can be had for about $277 plus shipping, and a CWA150 with connector kit is about $226... that's tempting, I might have to sell my 2x ZL1 pumps and get one of those.
Nice thing about the ZL1 pumps is they're available everywhere though-- dealers, Summit, Jegs, SDPC, etc. The Pierburg pumps do have VAG part numbers though for OEM VW/Audi applications, so they should also be readily available.
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1969 Chevelle
Old setup: Procharged/intercooled/EFI 353 SBC, TKO, ATS/SPC/Global West suspension, C6 brakes & hydroboost.
In progress: LS2, 3.0 Whipple, T56 Magnum, torque arm & watts link, Wilwood Aero6/4 brakes, Mk60 ABS, Vaporworx, floater 9" rear, etc.
Last edited by Blown353; 02-03-2023 at 07:44 PM.
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