Kieran
Premium Member
Registered: 12th Sep 08
Location: Kent
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Right iv been thinking long and hard about this for a while now,
The z20leh would be a bit more differcult if fit, but newer and not been done?
C20let easy to fit, but older and over done
The c20let would get rebuilt no matter what, the z20leh would get a general service as they only have a few miles on them.
Only thing I'm thinking is availably of sourcing performance parts ( cheaper/easier ) is there a difference?
And tuning potential on both engines what one would handle the power better or would be easier to get more power from?
Would both have f28's also. I'm just debating weather it's werth going for the z20leh or not, because of the hassle. I just don't know what to do so would like some suggestions please 
Will be in the near feature not quite yet
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Jabba
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Registered: 27th Nov 09
Location: co.durham
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z20leh if you ask me as its a younger engine will have less miles even tho they will be harder to fit id rather have a younger engine that has less miles than a easy to fit engine
just my own o.p
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Mieran
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Registered: 28th Jan 08
Location: Newcastle upon Tyne
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How you going to make the LEH work in a Corsa B?
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Jamie-C
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Registered: 3rd Jun 08
Location: Ballycastle
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Same way as you make any other engine work?
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AlexW
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Registered: 25th Oct 08
Location: Essex
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Jamie lol
It depends on how much you want to spend, the LEH is going to be lots more for obvious reasons (ECU and mapping is one!), and vs a correctly built CLET is no different.
Just thought too, Also depends if you can weld, New mount etc.
[Edited on 29-04-2011 by AW06]
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Kieran
Premium Member
Registered: 12th Sep 08
Location: Kent
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Would either get a cambus loom from Corsa c/ astra or omex management to run the z20leh. I'm just think to be different but it could bite me in the ass as I'm wanting about 350 to 400 bhp by the end of things. I'm just not to clued up on the tuning potential of the z20
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AlexW
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Registered: 25th Oct 08
Location: Essex
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You would be silly trying to run it on cambus IMO. Aftermarket Mappable ECU is the only way imo, So easily a grand inc mapping there.
Clet would be the way id be going, proven to hit 400plus bhp, I'm not sure what people have made out of the ZLET/LEH engines though.
If it was me, I'd save a bit of money in the actual conversion and go for a CLET, completely rebuild it (with some spec upgrades obv), and stick with the tried and tested.
Even mounting the LEH isnt easy!
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Mieran
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Registered: 28th Jan 08
Location: Newcastle upon Tyne
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Buy a LET and put steel rods in while its getting rebuilt so its ready for big power and doesn't need to be opened up again
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corsadonk
Premium Member
Registered: 4th Jul 09
Location: Marlborough, Wiltshire
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Newer engine with the standalone, the money you save on the rebuild, can go on the loom, ECU and mapping.
Do it man, it will be great.
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wwwNOOBcom
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Registered: 28th Oct 09
Location: Shettleston, Glasgow City
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C20let all the way, 400hp is usless for anything up a strip. 350 for a good all round fast road car
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bigron1988
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Registered: 29th Aug 09
Location: Southport, Merseyside
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c20let all the way , do a full rebuild before it goes in and it will be like a new engine , loads of 400 bhp c20let around so it shouldent be to hard and they go in a corsa b easy
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Kieran
Premium Member
Registered: 12th Sep 08
Location: Kent
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It would get a rebuild and some goodies before, just weighting up availability of both engines, price and potential. Can you get more for you money on the clet?
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MarkSport
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Registered: 22nd May 09
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c20lets are as commen as speedlines and gsi bodykits. go for the leh if funds allow. im sure warren could make one run
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Kieran
Premium Member
Registered: 12th Sep 08
Location: Kent
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That's what got me thinking, they are over done. But iv only ever seen a z20let in a b not a leh so will be very different, and couldn't be to hard. Just performance is all I'm worried about lol. Would like to pay 4 figure sums for something that on a clet would be peanuts with more output. Just don't know enough about zlehs. Lol
[Edited on 29-04-2011 by kizzacorsab]
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johnny86
Premium Member
Registered: 15th Feb 10
Location: in a bus stop.
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Kizza leh it mate will be the nuts.....
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MarkSport
Member
Registered: 22nd May 09
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isn't the leh like 237bhp? or whatever engine came in the zafira vxr... you need to think of reliability too, a clet is old and eventually parts will be hard to get where as new engines will be easier to source parts for.
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Ian
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Registered: 28th Aug 99
Location: Liverpool
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Age of the engine - not really important if it's being rebuilt
Availability of parts - really? This is a problem?
Everyone is going C not Z - yes, because it's easier and less wondering.
If you're rebuilding anyway I would go C for less headaches.
Z might be a more interesting route but there's less know and it has the potential to be a lot more of a headache for similar (less?) power.
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Col004
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Registered: 25th Jun 03
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You will have a small nightmare getting and LEH to run in a Corsa B unless you run after market management as the LEH purely runs and relies on CAN BUS for injector cycles, speed signals and fueling.
So it would become mega dear.. Stick with a LET mate.
[Edited on 30-04-2011 by Col004]
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Kieran
Premium Member
Registered: 12th Sep 08
Location: Kent
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That's what I mean I don't want to source all the parts for the zleh and have nothing but problems fitting and running it as it hasn't been done before so could not research common problems. But the other side is saying man up and just go for it, and the other devil is saying be clet man. Lol
[Edited on 30-04-2011 by kizzacorsab]
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corsadonk
Premium Member
Registered: 4th Jul 09
Location: Marlborough, Wiltshire
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The LEH is already forged with under piston jets I think. Go standalone anyway, also you'll need a cable throttle body. Then thats it you'll have 300 bhp with ease, just by mapping it, and a intercooler you'll need anyway.
It's hard enough getting XE parts from a dealer, I can see LET parts being the same.
Think what Monty went like with 260 BHP, a VXR is 240 standard.
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dale87
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Registered: 19th Feb 06
Location: West Mids :)
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I'm doing a clet conversion atm but I've not rebuilt it as its not my everyday car so won't matter if it lets go and I have the ability to rebuild it myself should something go wrong, but my engine did come from the original car which i had ownwd/drove etc, not just bought off someones garage floor.
will the power aim be 100% 400Bhp? if so id have to say clet as theyre have been loads of proven reliable engines at this spec and can be done on standard management(phase chips big turbo etc) until the need or want for standalone management.
will the car be used properly and driven hard? after owning a z20let i'd be a little worried to give it a hammering at 400bhp (just my opinion on zlet, leh might be different) but 400bhp aint going to be cheap on either engine really.
seeing as you have a xe already it would make sense to go clet but vxr engine would be very cool.
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dale87
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Registered: 19th Feb 06
Location: West Mids :)
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c20let's have mahle forged pistons standard iirc
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Mieran
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Registered: 28th Jan 08
Location: Newcastle upon Tyne
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So basically ecowrecks are crap. 
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Mike GSi
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Registered: 3rd Jan 07
Location: Ipswich, Suffolk Drives:Astra VXR
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LEH comes with 240bhp. By the time it is fitted and running in a Corsa B it will be at least 300bhp due to it needing an exhaust, stand alone, and larger intercooler.
Be diffferent imo.
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Daveskater
Premium Member
Registered: 29th Apr 08
Location: Oxford, UK Drives: Jap wagon
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I say get the LEH. Sure it may not have been done as much but unless people start doing it then there will never be the same amount of available knowledge as there is for the older LET.
Numberwang!
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