Nic Barnes
Member
Registered: 5th Apr 04
Location: nowhere near ginger people
User status: Offline
|
quote:
Originally posted by VXR
quote:
Originally posted by Steve
that kids talking crap if you take the turbo of a turbo engine your left with a low compression n/a engine 
How did the LET come about steve? Was it a newly designed engine, or a modified NA engine?
I think the above (your) comment is stating the bleeding obvious 
technically daimo, the xe cameabout from the original idea for the let
|
starkie
Member
Registered: 1st Jul 03
Location: Leslie, Fife
User status: Offline
|
same blocks just oilways taped into them easy done compression is easy solved from either head gasket thickness or new pistons though machined pistons has been done before as let and xe compressions arent all that different
|
Steve
Premium Member
Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
User status: Offline
|
quote:
Originally posted by starkie
same blocks just oilways taped into them easy done compression is easy solved from either head gasket thickness or new pistons though machined pistons has been done before as let and xe compressions arent all that different
indeed, but there are still differences in the two engines for one to run lower compression.
not "if you take the turbo off one your left with exactly the same as the other"
if you take the turbo off the let it will run like a sack of shit
|
Nic Barnes
Member
Registered: 5th Apr 04
Location: nowhere near ginger people
User status: Offline
|
yes
|
STEvieXE
Member
Registered: 21st Jan 03
Location: Ballymena N.I.
User status: Offline
|
wots the actual difference in the let and xe
compression (pistons i assume)
obviously turbo, manifold etc etc
ecu n loom
wot else?
are the heads the same basic design with different internals 4 exhaust ports or anything??
|
Nic Barnes
Member
Registered: 5th Apr 04
Location: nowhere near ginger people
User status: Offline
|
cams, throttle body, exhaust valves were sodium filled, heads are the same, inlet is the same
|
STEvieXE
Member
Registered: 21st Jan 03
Location: Ballymena N.I.
User status: Offline
|
so basically if ur rebuilding an xe it wouldnt be that hard to turn it into a let
|
Nic Barnes
Member
Registered: 5th Apr 04
Location: nowhere near ginger people
User status: Offline
|
no
|
STEvieXE
Member
Registered: 21st Jan 03
Location: Ballymena N.I.
User status: Offline
|
def sounds like a better option when rebuilding anyway..
|
Nic Barnes
Member
Registered: 5th Apr 04
Location: nowhere near ginger people
User status: Offline
|
quote:
Originally posted by STEvieXE
def sounds like a better option when rebuilding anyway..
by the time you got all the parts it probably would have been cheaper just to buy an let in the first place
|
Daimo B
Member
Registered: 20th Mar 00
User status: Offline
|
quote:
Originally posted by muppetsport
technically daimo, the xe cameabout from the original idea for the let
XE came about many years before the LET did. Think the first 16v motors were early 80's.
First LETs were in the late 80's I think.
XE was designed first, then adapted to turn into into a forced induction motor.
|
Nic Barnes
Member
Registered: 5th Apr 04
Location: nowhere near ginger people
User status: Offline
|
the engine itself was designed originally to be turbocharged though, although it wasnt released as an engine till much later.
therefore technically, the let was thought of before the xe as we knows it.
|
STEvieXE
Member
Registered: 21st Jan 03
Location: Ballymena N.I.
User status: Offline
|
ud be saving the 500 odd price of the let in the first place compared with the xe and could probably make it alot quicker for the same as buying and rebuilding a let for the same money
|
Nic Barnes
Member
Registered: 5th Apr 04
Location: nowhere near ginger people
User status: Offline
|
quote:
Originally posted by STEvieXE
ud be saving the 500 odd price of the let in the first place compared with the xe and could probably make it alot quicker for the same as buying and rebuilding a let for the same money
how exactly? let loom is 100 ish, it doesnt have the same sensors as an xe does, the afm is different, inlet temp sensor, tank vent valve is let specific so good luck finding one, then the ecu, the cams themselves, the turbo, the throttle body, a downpipe. etc. thats 500 right there not including the gaskets and pistons and bearings etc etc
[Edited on 11-09-2007 by muppetsport]
|
Steve
Premium Member
Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
User status: Offline
|
quote:
Originally posted by muppetsport
the engine itself was designed originally to be turbocharged though, although it wasnt released as an engine till much later.
therefore technically, the let was thought of before the xe as we knows it.
daimo knows his engines, he would never, for example buy an astra 1.6 engine thinking it was a corsa sport lump
|
STEvieXE
Member
Registered: 21st Jan 03
Location: Ballymena N.I.
User status: Offline
|
yeah ok fair enuff, but would u not be better at that stage going for programmable management which would be no need for let loom etc.
i know wot ur saying, not lookin to arque about it just trying to fathom it
|
Nic Barnes
Member
Registered: 5th Apr 04
Location: nowhere near ginger people
User status: Offline
|
ok fair enough, programmeable ecu be what say 800-1000 for dta or omex and a loom (broster will say gotech for 400 quid), then you need injectors, then you need it mapped, adding rouhgly say 1200 ish to the cost of thinking of converting it in the first place
|
CORSA NUT
Member
Registered: 3rd Aug 01
Location: Wirral
User status: Offline
|
quote:
Originally posted by Steve
quote:
Originally posted by muppetsport
the engine itself was designed originally to be turbocharged though, although it wasnt released as an engine till much later.
therefore technically, the let was thought of before the xe as we knows it.
daimo knows his engines, he would never, for example buy an astra 1.6 engine thinking it was a corsa sport lump
Meeeoooowwww
|
STEvieXE
Member
Registered: 21st Jan 03
Location: Ballymena N.I.
User status: Offline
|
yeah but if ur going for high power then ur now got programmable ecu which if u wanted on ur let would have been an extra 1k or wotever anyway
i know u have more experience of things like this than most, why did u not buy a let in the first place??
if now u were doing it again, would u have just bought a let??
|
Nic Barnes
Member
Registered: 5th Apr 04
Location: nowhere near ginger people
User status: Offline
|
no, me personally, i wouldnt buy a let. then again i wouldnt be trying to make a roughly std let out of an xe anyway, so in my case id not buy a let.
|
STEvieXE
Member
Registered: 21st Jan 03
Location: Ballymena N.I.
User status: Offline
|
yeah so for high power ud go down the turbo xe route then
|
Nic Barnes
Member
Registered: 5th Apr 04
Location: nowhere near ginger people
User status: Offline
|
well not really, just depends on what block was cheaper i could get hold of. if i could get a c20let block for 50 quid that needed a re-bore, it would save me the hassle of having to bore a 20xe block and have the front tapped for the oil return. heads dont matter a shit. can get one for cheap then send it off for work anyway. and cams, well i dont use std cams anyway. so technically, whatever block was the cheaper block is what id buy.
|
Daimo B
Member
Registered: 20th Mar 00
User status: Offline
|
quote:
Originally posted by muppetsport
the engine itself was designed originally to be turbocharged though, although it wasnt released as an engine till much later.
therefore technically, the let was thought of before the xe as we knows it.
Really, never knew that, have to look into it. Always thought the XE to be the original NA engine, then the LET came about after changing compression, cams, turbo, injectors yadder yadder....
AS for Steve, aye, i bought a 1.6 XEL engine as i was told by some rich little faggot that it was for a Corsa and sold a dud engine.
But its ok, the seller gave me some money back, then I sold the engine for more than I bought it, and I got to drive a ropey old van from the Crays brothers driver (a client of Donnas) which was a right bit of fun.
Keep trying steve, as always, keep trying 
|
Mattb
Member
Registered: 2nd Feb 03
Location: Under your sisters bed
User status: Offline
|
personally i wouldnt fuck about with either engine when doing a conversion.. Use a post 1994 saab 2.3 turbo lump.. much better engine.
|
deanmcreynolds26
Member
Registered: 15th Sep 03
Location: E46 //M3
User status: Offline
|
quote:
Originally posted by Mattb
personally i wouldnt fuck about with either engine when doing a conversion.. Use a post 1994 saab 2.3 turbo lump.. much better engine.
my mates dad was going on about this engine a few years ago, uses GM running gear..
anyone ever converted one of these into a vaux
|
