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| Re: alternative hybrid QRSR20DE |
Subject: Re: alternative hybrid QRSR20DE
by D on 2022/8/18 14:45:20
Hybrid as in a mix of SR with QR and yes SR20 crank with full counterweight, proven and cheap 86mm down from 100mm stroke.
A stock QR25DE is 200+hp from factory achieved at a low 6500rpm but with 86mm stroke crank 9k rpm is possible and more lift
with slightly more duration 240-280hp is possible.
The conrods are the weak link on post 2008 engines but everything else is sorted on that second revision.
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