jibjob
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Registered: 6th Apr 08
Location: Elworth, Cheshire
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If you had your pick which one would you choose? Im not that clued up on any of the turbo engines when it comes to pros, cons and general points to look out for with each but im thinking of purchasing one of them soon for a project so could do with some help. It wont be going into a car it came out of so mounts etc will all be custom made.
I want to know the differences, the pro's, the con's and things to look out for on each engine. Also which parts from the engines are interchangeable? E.g. can you put an F20 box onto a Z20let?
[Edited on 01-08-2010 by jibjob]
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Cole
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Registered: 11th Nov 02
Location: eastbourne Drives:zafira sold now a qashqai
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f20 box would fit but would need changing to hydraulic clutch
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jibjob
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Registered: 6th Apr 08
Location: Elworth, Cheshire
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Ah ok. Is it possible to change the clutch for a cable one? Its just the car its going into is cable and i dont want to have to mess around changing the bulkhead and peddle box.
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Cole
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Registered: 11th Nov 02
Location: eastbourne Drives:zafira sold now a qashqai
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ah then what i said is wrong the f20 should fit the z20let and if its going in a car that is cable then no problem at all if the engine was in say a mk4 astra then the f20 would need to be changed
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chrex
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Registered: 26th Aug 07
Location: Brawdy/Wirral
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tbh, the zLet is probably the 'best' of the engines imo...but depends on what you want.
The box depends on the car. If you were putting a ZLET in a corsa B with an F20, then you can keep the cable. If you are putting it into likes of an astra mk4, then you'd be better with an F23 as it would need a hydro clutch.
Its down to the car.
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jibjob
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Registered: 6th Apr 08
Location: Elworth, Cheshire
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Cheers for the help boyo's. Is the Zlet fly-by-wire throttle aswel? As i'll need to change that to cable.
What are the differences between the Zlet and Zleh? Is it just ecu map and turbo?
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chrex
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Registered: 26th Aug 07
Location: Brawdy/Wirral
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yea, but im sure i've heard you can use the c-let TB to get round that...
Putting into a corsa, you're best off just doing a c-let unless you want alot of work.
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jibjob
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Registered: 6th Apr 08
Location: Elworth, Cheshire
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The amount of work doesnt really phase me. Its just for the price of a 100,000mile c20let i can pick up a 35,000 mile z20let. Its more work to get it to fit but its a no brainer when it comes to reliability.
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Sandsy
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Registered: 29th Oct 04
Location: Tilney All Saints Drives: V6 Corsa
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you would have to keep the fly by wire throttle iirc as the ecu controls this by a signal, from what i have been told the conversion is abit of a pain,
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jibjob
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Registered: 6th Apr 08
Location: Elworth, Cheshire
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What about if i used after market management?
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LeeM
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Registered: 26th Sep 05
Location: Liverpool
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could you not get a throttle pedal out of a corsa c maybe?
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jibjob
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Registered: 6th Apr 08
Location: Elworth, Cheshire
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I thought they were cable? 
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LeeM
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Registered: 26th Sep 05
Location: Liverpool
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mines not
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jibjob
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Registered: 6th Apr 08
Location: Elworth, Cheshire
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Ah i'll look into that then. Do you know if its a single pedal or if its attached to the other two? Also what litre/model/year is yours?
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LeeM
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Registered: 26th Sep 05
Location: Liverpool
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mines an 04 sri. couldnt tell you if its attached to the other 2 or not, but at a guess id say its probably a seperate unit
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jibjob
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Registered: 6th Apr 08
Location: Elworth, Cheshire
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Cheers mate i'll have a look then and see if it can be used.
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philip2
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Registered: 1st Oct 06
Location: n.wales/chester
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why is the zlet better? its more hassle to fit than a clet, and id prefer the tried and tested motor for getting hold of decent aftermarket goodies, than the zlet as its fairly new everything is expensive and doesnt come up for sale very often
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FlamingCorsa
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Registered: 22nd Apr 03
Location: Shropshire
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z20let or leh engine all the way!
i had few cars with c20 lets
and i have owned 3 cars with z20let or leh engines and i still have 2 of them both around 300hp! and both superbly reliable! i never had confidence in the c20let and it was 2.1 rebuilt and a strong engine!
in my eyes the z20let is great! just done track day this last week with the van thats 310hp, 360lb torque and it it happly ran round all day! my old astra c20let would have broken down! lol
but as for putting on in corsa b will be pretty big job! cos c20let's are easier to fit!
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jibjob
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Registered: 6th Apr 08
Location: Elworth, Cheshire
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Surely if i was to fit it into a B it would only be the same amount of work as a c20let?
Obviously id have to make some mounts up but i could use the same gearbox mounts, driveshafts and other bits and bobs as you would in the c20let conversion. Id have to do my own wiring for the dash loom but that shouldnt be a problem. As already mentioned brakes and clutch are a straight fit and ive just use a corsa C throttle pedal or convert it to a cable throttle.
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oceansoul
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Registered: 19th Jun 06
Location: Sunbury, Surrey
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I dont know how correct this is but im sure i read it somewhere. The ECU from the more modern cars with the Zlet and Zleh is tied into the dials. Basically the dials must be present or the ecu wont allow the car to run.
Correct me if im wrong though 
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jibjob
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Registered: 6th Apr 08
Location: Elworth, Cheshire
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I think you might be onto something there as ive seen dials included in the ecu sets on eBay. I always wondered what that was all about. It must just be a chip or something though as ive seen them in corsa c dials. How far do you think a set of corsa c dials are off fitting into a b?
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LeeM
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Registered: 26th Sep 05
Location: Liverpool
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i know the ecu on mine is coded to the bcm and dials. however ive never seen it mentioned that you need either of those when fitting a z20let to the corsa, just the ecu is needed and the key chip
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Jonny_H
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Registered: 19th Sep 09
Location: Willington, County Durham
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Stick with the C20LET for a B. Z20LET/LEH for a corsa C.
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Huwsi
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Registered: 27th Apr 07
Location: Bangor, Gwynedd
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quote:
Originally posted by Jonny_H
Stick with the C20LET for a B. Z20LET/LEH for a corsa C.
I agree with this tbh. The Zlet into a corsa is an easier convbersion though as with the LEH you need custom mounts and driveshafts, among other things which arent as easy to source iirc
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