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Author Z20LEH into mk4
IvIarkgraham
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Registered: 27th Mar 04
Location: Ellesmere Port, Cheshire
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3rd Jul 13 at 01:41   View Garage View User's Profile U2U Member Reply With Quote
am I right in thinking that this engine would use the same mounts as a Z20LET?

Is it 240bhp standard?

any other problems when trying to fit it?
Ste
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Registered: 5th Mar 03
Location: Taif, Saudi Arabia
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3rd Jul 13 at 05:09   View Garage View User's Profile U2U Member Reply With Quote
Wouldn't the saab engine be better? b204 can be tuned to 350bhp on standard internals and bolts in

I would rather lose by a mile because i built my own car, than win by an inch because someone else built it for me.
davegreen
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Registered: 20th May 12
Location: Oxfordshire
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3rd Jul 13 at 05:16   View Garage View User's Profile U2U Member Reply With Quote
same mounts, can run on z20let ecu too.
237bhp, 240ps can be tuned to 280/300bhp on standard internals.
but as said the saab lumps are stronger, b207r shares same block as z22se and with the right tunning can go well over 500bhp or for plain silly power see what they get from the lsj over in the usa, 1200bhp!!
FlamingCorsa
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Registered: 22nd Apr 03
Location: Shropshire
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3rd Jul 13 at 07:33   View User's Profile U2U Member Reply With Quote
I did a z20leh conversion on my mk4 van 4-5 years back,

If u keep with your f23 box then it will be straight swap, I did the conversion to fit the m32 gearbox to have 6 gears, if your doing that have to do little more work cos one different mount and need different shafts, I used shafts from a mk5 Sri turbo with z20 ell/ler engine cos they use vxr inner but mk4 outer shafts.

Mine has run faultless for the 4-5 years, been 300hp most of that time and done 15-20 track days and still on standard vxr clutch also :-)
Jed D
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Registered: 15th Mar 11
Location: Durham
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3rd Jul 13 at 07:38   View User's Profile U2U Member Reply With Quote
i was always under the impression the LEH wasn't as tunable as the ZLET


if your wanting to chuck some money at it to get big bhp go for 2.2

[Edited on 03-07-2013 by Jed D]
FlamingCorsa
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Registered: 22nd Apr 03
Location: Shropshire
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3rd Jul 13 at 08:14   View User's Profile U2U Member Reply With Quote
They are both z20 engine its just the leh has oil spay bars in bottom end, no balancer shafts and forged pistons as standard making them a slightly stronger engine than the normal z20let
3i_gaz
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Registered: 29th Nov 07
Location: Liverpool
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3rd Jul 13 at 08:27   View User's Profile U2U Member Reply With Quote
as above the LEH's are very tuneable a bit more so than the LET's.

Friend runs an LEH van on a GT30 and it is an unreal piece of kit! m32 box with a quaiffe, omex etc etc.... good swop! the boxes are HUGE compared to an F23 though lol
gazza808
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Registered: 30th Jun 08
Location: Peterborough
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3rd Jul 13 at 08:43   View User's Profile U2U Member Reply With Quote
Leh has stronger pistons, throw some steel rods in it and you've got a bottom end that can take 400bhp all day.

Though I have seen z20let pistons take 500bhp...

[Edited on 03-07-2013 by gazza808]
FlamingCorsa
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Registered: 22nd Apr 03
Location: Shropshire
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3rd Jul 13 at 08:59   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by 3i_gaz
as above the LEH's are very tuneable a bit more so than the LET's.

Friend runs an LEH van on a GT30 and it is an unreal piece of kit! m32 box with a quaiffe, omex etc etc.... good swop! the boxes are HUGE compared to an F23 though lol


Yea think the m32 box adds some weight but gives such a smoother gear change, so long as barings don't go in it, lol
IvIarkgraham
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Registered: 27th Mar 04
Location: Ellesmere Port, Cheshire
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3rd Jul 13 at 09:01   View Garage View User's Profile U2U Member Reply With Quote
Few people have guessed i have a let. But i dont.

Measly 1.8
Corsa_Sport21
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Registered: 13th Apr 08
Location: Leven, Fife. Drives : 205 GTi
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3rd Jul 13 at 11:02   View User's Profile U2U Member Reply With Quote
People in 1.0s??
gazza808
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Registered: 30th Jun 08
Location: Peterborough
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3rd Jul 13 at 11:06   View User's Profile U2U Member Reply With Quote
Don't you have to run the z20let loom, ecu etc when running the leh lump in a mk4?
Jambo
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Registered: 8th Sep 01
Location: Maidenhead, Drives: VXR Arctic
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3rd Jul 13 at 12:23   View User's Profile U2U Member Reply With Quote
Sell it, buy fast car.
IvIarkgraham
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Registered: 27th Mar 04
Location: Ellesmere Port, Cheshire
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3rd Jul 13 at 12:49   View Garage View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Jambo
Sell it, buy fast car.


ive looked into that. but ive upgraded almost everything so to get a similar spec in a better faster car it would cost me loads!
Jambo
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Registered: 8th Sep 01
Location: Maidenhead, Drives: VXR Arctic
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3rd Jul 13 at 12:52   View User's Profile U2U Member Reply With Quote
What have you looked at?

Sure a Scoob/M3/Evo etc would be affordable?

Most importantly will drive 1000x better than a Mk4 Astra.
Ian W
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Registered: 8th Nov 03
Location: Wirral, Merseyside
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3rd Jul 13 at 12:59   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Jambo
Sell it, buy fast car.




Don't bother fucking around with engine conversions, just buys something faster from the get go.
FlamingCorsa
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Registered: 22nd Apr 03
Location: Shropshire
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3rd Jul 13 at 22:32   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by IvIarkgraham
Few people have guessed i have a let. But i dont.

Measly 1.8


U would be beta surely just going down the normal z20let route, get a tatty astra coupe turbo as donor car then u have everything u need there and sell any parts u don't need, get most of your money back, or put engine from yours in the donor car and sell on, . . . Could work out cheap conversion then, may take few weekend but u will lern a lot about your car by doing conversion yourself.
IvIarkgraham
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Registered: 27th Mar 04
Location: Ellesmere Port, Cheshire
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3rd Jul 13 at 22:55   View Garage View User's Profile U2U Member Reply With Quote
quote:
Originally posted by FlamingCorsa
quote:
Originally posted by IvIarkgraham
Few people have guessed i have a let. But i dont.

Measly 1.8


U would be beta surely just going down the normal z20let route, get a tatty astra coupe turbo as donor car then u have everything u need there and sell any parts u don't need, get most of your money back, or put engine from yours in the donor car and sell on, . . . Could work out cheap conversion then, may take few weekend but u will lern a lot about your car by doing conversion yourself.


probably the best option, but I cannot be without a car for a few weeks. plus I dont have the tools or knowledge.
IvIarkgraham
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Registered: 27th Mar 04
Location: Ellesmere Port, Cheshire
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3rd Jul 13 at 22:56   View Garage View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Jambo
What have you looked at?

Sure a Scoob/M3/Evo etc would be affordable?

Most importantly will drive 1000x better than a Mk4 Astra.


I currently have full heated leather, sat nav and decent stereo. so I would be wanting that again.
decent scoob/evo/m3 are out of my budget
Iain M
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Registered: 18th Aug 05
Location: Wigan - Drives 272bhp corsa ZLET
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3rd Jul 13 at 22:58   View User's Profile U2U Member Reply With Quote
When i had my let i was told the ZLET has a stonger crank (sp) and was better and would take more on standard internals. Just what i was told thats all.
corsadonk
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Registered: 4th Jul 09
Location: Marlborough, Wiltshire
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4th Jul 13 at 05:49   View Garage View User's Profile U2U Member Reply With Quote
Like has been said, get a Coupe turbo for a grand. Strip that down, get everything ready, and fit the engine while you take a week off work.
Primey86
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Registered: 20th May 12
Location: Bradford, West Yorkshire
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4th Jul 13 at 10:28   View User's Profile U2U Member Reply With Quote
B204 conversion
gazza808
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Registered: 30th Jun 08
Location: Peterborough
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4th Jul 13 at 11:30   View User's Profile U2U Member Reply With Quote
One better b234 conversion....
Jambo
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Registered: 8th Sep 01
Location: Maidenhead, Drives: VXR Arctic
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4th Jul 13 at 12:10   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by IvIarkgraham
quote:
Originally posted by Jambo
What have you looked at?

Sure a Scoob/M3/Evo etc would be affordable?

Most importantly will drive 1000x better than a Mk4 Astra.


I currently have full heated leather, sat nav and decent stereo. so I would be wanting that again.
decent scoob/evo/m3 are out of my budget


But youll pay £xxxx to put an engine in? I think you will be surprised.
Jed D
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Registered: 15th Mar 11
Location: Durham
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5th Jul 13 at 08:39   View User's Profile U2U Member Reply With Quote
do a 2.2 charged



 
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