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Thread: c20let vs z20let conversions

  
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    Duncan Sxi's Avatar
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    c20let vs z20let conversions

    hi i was wondering what would be the best engine for a transplant. someine told me the c20lets are faster easier to get hold of and a cheaper option but the z20let being a more modern are alot more tuneable. just wondering if someone could shed some light please. thanks

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    Sten's Avatar
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    I wouldn't want a 11+ year old engine going in my car personally. The Z20LET is newer, smoother and has plenty of tuning potential. Pretty much the same power as standard too.
    Previous Astras: 1994 Cesaro 1.8 16v | 2002 SXi 1.6 16v | 2001 Coupé 2.0 Turbo | 1999 LS 1.6 16v
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    Tough one really IMO. The Zlet is obviously an improvement and refinement of the Clet but if cost is an issue then you are more likely to be able to tune the Clet more cheaply , e.g remap from regal for zlet is approx. £480 whereas remap for the Clet from regal listed as from £150.
    Also sourcing the Clet is likely to be cheaper than the Zlet.

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    C20 LETs are a very overpriced, for a very old engine. But its a good engine and very tunable, loads out there.

    Z LETS will become as tunable as the c20 let given time.

    Dont get me wrong theres loads of tuning options out there for the zlet.

    Both have there issues such as the c20 lets pourus heads and turbo and afm issues on the z let. but all in all its personal choice.

    I would sway for a c20 let myself on the value of its different to the norm

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    Brett - from what I can tell, there is already more tuning stuff out for the Z20LET than there ever was for the C20LET.
    8 Astras in a row! Can Anyone Beat That?
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    Had both engines, and both in the mk4 shell.

    Personally I enjoyed the C20LET more as it felt agressive, although Z20LET was smoother and more refined. Depends on what your after.

    Age of the C20LET engine didnt concern me as it was thoroughly inspected and rebuilt before it went near my car.

    Also the headgasket popped on my Z20LET which was unheard of.

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    Quote Originally Posted by MikeWarner
    Brett - from what I can tell, there is already more tuning stuff out for the Z20LET than there ever was for the C20LET.
    To be fair both engines are well catered for but the c20let has got many years of experiance in the tuning feild over the zlet.

    But your more likley right in whats on offer for the zlet

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