flyingkiwi
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| posted on 27/1/05 at 12:00 AM |
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1760 xflow info wanted!
I've just been offered a rather tasty looking 1760 xflow lump for (what I think is ok) £200. The guy selling it is into his hotrod's and
want's shot of it (using a v6 lump instead), but say's that the bloke he brought the car off had done loads of work to it, including
lightened and balanced flywheel, performance cam, timing chain and a load of other mods.
My question is (finally) will this engine run happily through my bog standard sailsbury type rear axle (from a 1300 escort) without trashing it (just
managed to weld all the brackets on it) and what sort of power rating should I use for the sva to help with the noise test?
I've had a search on here for any info, but not much to be found. I have worked out that it's not an AX or 711 block (689 or 698 something
like that) and the engine is roughly chucking out 110 odd brake (he think's its more 120bhp at the flywheel), which is a damn sight more than
the 1300's output.
The final drive train would be 1760 to a 4 speed box then sailsbury live axle.
Any help would be great before I part with my hard earned dosh.
Cheers
Chris
It Runs!!!!! Bring on the SVA!
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stevebubs
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| posted on 27/1/05 at 12:32 AM |
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Your diff will cope with this without issue. I'm aiming to put around 170 through mine.
As I think you've realised, 711 and AX blocks are preferred due to their strength. This is primarily from their cylinder bores (i.e. 711 and AX
blocks are OK to really overbore (AX blocks especially so)). You've probably got the maximum overbore for that block, though. If it was bored to
1700 I'd say walk away.
If the engine is in good nick and running ok then (to me) it sounds like a fair enough deal.
S
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stevebubs
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| posted on 27/1/05 at 01:10 AM |
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Just re-read your post and noticed it was 1760 not 1660....hmmm...didn't think that was possible with anything other than the AX block...
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flyingkiwi
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| posted on 27/1/05 at 12:13 PM |
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from what I gather the engine came out of a cortina and was origonally a 1750, before it was slightly modded. Something like that.
It's a fully running engine and tick's over nicely, so I think that will be sitting in my chassis very shortly.
Cheers for the info steve.
Chris
It Runs!!!!! Bring on the SVA!
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MikeR
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| posted on 27/1/05 at 01:10 PM |
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hmmm, 1760 sounds very extreme for a xf unless its an AX block. The fact its not even 711 makes me worry a great deal. Either the walls are paper thin
or ..... someone isn't being truthful. 1760cc should put out more than 110 flywheel bhp. I'd suspect its more like 1660 or not a
crossflow. Could it be a pinto perhaps (i've no idea what they will bore to)
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britishtrident
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| posted on 27/1/05 at 04:49 PM |
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I know hod rod and custom car guys seldom make sense but what the guy is telling you just dosen't make any sort of sense -- the only reason
for taking an xflo to 1760 is if the builder was really serious about power output --- a lot of metal has to be removed by boring, even going to
1660 involves a major rebore.
As for your tranasmision even if your engine ist what it claims to be you rear axle will have no problem but the exact type of gearbox has a major
effect.
Escort Mk1 --- it will last a couple of months.
Escort Mk2 -- it will last at least a couple of years
Cortina/Capri 1600 --- (various types) several years
Cortina 2000/capri 2000 ---- several decades
Siera (any) --- several years.
[Edited on 27/1/05 by britishtrident]
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rusty nuts
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| posted on 27/1/05 at 06:16 PM |
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A properly modded 711 block with a high T number {casting number, not engine number} should bore 90 thou oversize giving approx 1690cc . with all the
right bits and pieces should produce around 125/130 b.h.p Would cost around £800 just for the engine without ancilliarys, if yours has a decently
modded head it may be worth a look, but doubt it has been converted to unleaded fuel if used in a hot rod
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flyingkiwi
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| posted on 27/1/05 at 07:38 PM |
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Right, so I really need to find out what type and size the engine is then. Is there any way of finding out the bore size without pulling the thing
apart, as I don't want to mess with something that's working fine.
Looking at it I will be alright to run it through the escort box for a while then.
Starting to puzzle me now, maybe that's why he want's rid of it. I've remembered he said something about it being 1750, and
I'm sure I have seen other people on here running 1750 engines, so what type are they?
cheers guys
Chris
[Edited on 27/1/05 by flyingkiwi]
It Runs!!!!! Bring on the SVA!
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flyingkiwi
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| posted on 28/1/05 at 06:49 PM |
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Will try and get one early next week, hopefully with a bit more info!!!
Cheers
Chris
It Runs!!!!! Bring on the SVA!
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flyingkiwi
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| posted on 29/1/05 at 03:28 PM |
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Right, popped over this afternoon to have a look at the engine and it is a xflow, some of the info he gave me was bogus and it's not 1760 but
just over the 1700 mark, the block is a 691m and origionally a 1600, so like you say, probably rather thin. The pistons have been upgraded, with new
shell bearings, and the head has been skimmed. The exhaust manifolds been changed from the normal 1600 one to a another type from a cortina (still a 4
into 1 but the pipes are longer before they all join up) and has a twin choke carb on it (not sure of the make) The fly wheel has been lightened and
balanced, plus it has a dyno (something) timing chain, chrome rocker cover, new cam shafts, high lift rocker's and has been painted in a rather
ugly looking red.
Didn't managed to get some photo's as it was in the back of his shed. Apparently all it need's to get it running is a new bolt
fitted to one of the big end bearings, and a little running in.
He's got the reciepts of all the work carried out but can't find them at the mo (that old chestnut)
He's a mate from work and has said that I can take the engine, plop it into the car and see if it work's before I part with the dosh.
It should fire up straight away as it was fitted in his 100T before he came up with the great idea of replacing it with a granada v6.
Hopefully this has narrowed down what it is now, so someone out there might know what rpm to run it at to pass the sva test??
Cheers
Chris
It Runs!!!!! Bring on the SVA!
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Marcus
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| posted on 30/1/05 at 09:18 PM |
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Tell SVA man it maxes out at 5750 rpm, that way, he'll test it at about 4000, my 1700 crossflow easily passed noise with a standard lolocost
silencer.
Marcus
Marcus
Because kits are for girls!!
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britishtrident
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| posted on 30/1/05 at 10:31 PM |
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"new bolt fitted to one of ther big end bearings"
Strange !!!!| why was it replaced ????? ----- I would budget for a crank re-grind + check rods for damage
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flyingkiwi
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| posted on 31/1/05 at 12:42 PM |
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Might have got the big end bearing bit wrong, but he replaced the shell's on the bottom of the engine and found he was one bolt short.
Cheer's for the input Marcus, will be using that for the SVA now.
He turned up today with all the info and recpiets, look's like it cost the bloke over £1000 to get done professionally, and there has been a lot
of work. Still using the leaded head though.
Just gotta work out whether it will fit in the back of my mazda without wreaking the suspension!!
Cheers for all the help guys, much appriciated
Chris
It Runs!!!!! Bring on the SVA!
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MikeR
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| posted on 31/1/05 at 05:45 PM |
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it will fit - i promise
I've had an engine, gearbox, back axle, spare block, pistons, crank, uprights (the list goes on) in a citroen all at once.....
little bit hairy driving mind you 
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