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'88 X1/9 to Uno power

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8 years 9 months ago #38375 by Thom Milburn
Good evening all,

As some of you will be growing aware, i'm the proud new owner of a part-way-through uno i.e conversion.

I've made a couple of observations I could use some assistance with (please!):

Sump - I don't believe the X1/9 sump has been fitted as the one in situ is smooth bottomed and has the oil return from the turbo (and it's magnetic).

Is it necessary to swap the sump to that of the x1/9? I believe it to be (as well as the dipstick obviously). If so, how are people adding an oil return without welding the alloy sump?

Undertray - There appears to be a whole lot of small bolts screwed to the underside of the engine bay, i presume (perhaps incorrectly) that an undertray may have been fitted originally - is this the case?

Ignition Relay - I've been going through the many loose wires alongside a diagram. Can anyone canfirm the green wires in picture 1 are intended for the 'blue' side of the coil, as depicted?

Ignition Switch Connectors - Picture 2 shows two connectors that according to Haynes are 'ignition switch'. How have others wired these to the X1/9 ignition?

Mounting Points - Whilst i've read many references to where to locate the various engine clutter - has anyone any deatiled pictures of where to mount the air flow metre (I'm under the impression this should bolt to nearside of head without bracketry?), the ignition relay and fuel pump (firewall appears to have three nicely located bolts this can mount to in line with pass seat?).

And until next time, other than trying to figure out which sensor is which on the engine - I shall leave it there!

Thanks in advance guys :)

Thom

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8 years 9 months ago - 8 years 9 months ago #38380 by Speedy Fiat
Replied by Speedy Fiat on topic '88 X1/9 to Uno power
If the two sumps are visually the same I would stick with the (presumably) Uno sump. If you need to change then you can easily drill a suitable sized hole in the alloy sump and fit a threaded type hose fitting, Demon Tweeks or a hydraulic fittings/pipe shop would have a decent range of such fittings. I have exactly this on my turbo engine. As its under no pressure the fitting need not be welded, etc
The small bolts may well be for the side under trays that were originally fitted but missing on many cars.
The wiring was the most challenging part of the conversion. I'm sorry I can't help on the details as it was a couple of years ago I did mine. If you search on line you can find wiring diagrams for the conversion but I would recommend as well buying an X1/9 and a Uno Haynes manual to look at the details and compare.
I mounted the coil, ecu and other electrics inside the spare wheel well. Obviously I now have no spare wheel but it keeps them out of harms way and reduces the clutter in the engine bay. If you are ever passing through Northamptonshire you are welcome to drop in and have a look at my set up.
Avoid mounting the fuel pump on the bulkhead as they are quite noisey and it will intrude into the cabin. For safety reasons you should fit an inertia fuel cut off device in case of an accident, mines a standard Land Rover part. Eagle eyed folk will notice that in the picture the cut off device is fitted the wrong way up, as I found out to my cost while racing -it should be vertical and not horizontal
Attached is a picture of my engine bay. The previous owner had made up the bracket for the air flow meter (attached on the nearside of the cam carrier) which handily meant some of the Uno Turbo pipe work could be resused. The turbo pipe work can either go a rather lengthy route under the engine or a much shorter route as per the picture, but you intrude into the rear boot.

Last edit: 8 years 9 months ago by Speedy Fiat.

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8 years 9 months ago #38385 by Rob Warren
Replied by Rob Warren on topic '88 X1/9 to Uno power
Hi John - I see your cold start pipe is disconnected. Any issues?

1986 'BAD' Turbo Bertone X1/9
1977 1300 Special Series
1989 Lotus Esprit 2.2 Turbo
1985 Pontiac Fiero 2.8 V6
1986 Mk1 b MR2 t-bar
1999 Mk 2 MR2 Rev 5 t-bar, 3.0 V6 vvti
2003 Mk 3 MR2 daily driver
2012 GT86

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8 years 9 months ago #38386 by Speedy Fiat
Replied by Speedy Fiat on topic '88 X1/9 to Uno power
It's deliberately disconnected, but I can't remember exactly why without trawling through my records. I do seem to remember seeing on forum discussions that it can be happily left off if desired to keep installation simpler. However, I've never had any problems starting - the pleasures of fuel injection!. That's possibly not surprising as it runs very (very) rich at low revs due to the fueling requirements and the rather basic ecu I'm running, something I intend to tackle with an Omex/Emerald ecu next winter

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8 years 9 months ago #38389 by Thom Milburn
Thank you very much for the info! What a pleasure it is having such experts around!

Hopefully this Sunday I'm going to connect up a few of the more major wires and tidy up a few other that will prove 'quick wins'.

I seem to come up against numerous bits I'm Unfamiliar with; tonight I discovered the upper mount/dog bone/ torque mount is cranked and I'm unsure why... perhaps to stand the uno engine up straighter thus enabling the original uno sump to remain?

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8 years 9 months ago #38391 by Speedy Fiat
Replied by Speedy Fiat on topic '88 X1/9 to Uno power
Moving the vertical alignment of the engine, depending on the amount, may cause problems in lining up the bolts holes in the engine mounting on the crank end. Wouldn't do much for the gear selector input shaft either. I would go with a straight one until you come up with a reason to change.
One bit of knowledge I picked up is that if you have got the wires and sensors in the right place and right order it will fire and run - if not it won't. Unlike when on points and a carb when you can get all manner of spluttering and coughing due to the many variables that may not be quite right.

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