Toyota Agyo/ Pug 106/ Citroen C1 engine

[fightingtorque]

Hello Gents,
The fuel injection project I was working on came to a bit of an end, as we sold our technology portfolio to another company.  So my iBIS system is now obsolete and can't go any further, nor is it really far enough on to be a viable item (software lacks complexity for certain conditions).

I have still kept the car in my garage though.  It is a reasonably solid / tidy shell, goodish interior etc.  To be a really cool car, in my opinion a bit more power is required.  So I spend quite a lot of time thinking about things like:

Turbocharger (on existing engine)
BMW K75 or K100 engine (on existing transaxle)
Other engines/ transmissions


I am currently thinking about the toyota Aygo engine and found this thread.  Note the guy stopped the project half way down but has now started again:

http://forum.theimpclub.co.uk/viewtopic.php?f=33&t=15902

Its 68hp and by all accounts quite a fun engine to drive with, it can also be turbocharged.  He is mating it to an imp transaxle, the fiat 126 one is probably not really strong enough in turbo application but might be ok without turbo.

Would be nicer if it was a 5 speed though.  I am wondering whether there is room to put the engine and FWD box in transversely, of course you have to rotate the box relative to the engine to bring the driveshafts in front of the unit   and that might have issues with keeping the oil in it  .(if you turn it round you will have 5 reverse gears).  I don't want to go mid engined because then you lose the backseats and if you are going to build a mid engined 2 seater I think you might as well build a complete sports car in the first place.

[1973/126]

 This one could give you better idea of how it fits in a 126

 http://club126uk.co.uk/smf/index.php?topic=7448.0

[pietschokkenbroek]

Would be nicer if it was a 5 speed though.  I am wondering whether there is room to put the engine and FWD box in transversely, of course you have to rotate the box relative to the engine to bring the driveshafts in front of the unit   and that might have issues with keeping the oil in it  .(if you turn it round you will have 5 reverse gears).  I don't want to go mid engined because then you lose the backseats and if you are going to build a mid engined 2 seater I think you might as well build a complete sports car in the first place.

Hello mr Torque, this all sounds very familiar to me!! I also came across the imp build-thread. I first tried to go with the original gearbox. I did some milling to adapt the belhousing. But when my adapted shaft came back from the welder it turned out as bent as &@*#($  So it was time to opt for plan B. Which involved rotating the (Toyota) gearbox.... (as you can read in my thread  )

[fightingtorque]

Awesome, I hadn't seen your project thread until now.  Using the Toyota box has many advantages - you know its strong enough, and you have 5 speeds, and it will be easier to source them in the long term.  It does mean more work on the linkage etc. though!

My car is a BIS, so I don't have the same engine compartment shape as you = more difficult

[pietschokkenbroek]

My car is a BIS, so I don't have the same engine compartment shape as you = more difficult

Yes that true..  ( I have to admit that I've never seen a BIS compartement in real live...) I think it would be possible to tilt the engine like in the Imp (but then tranverse..) to get it to fit. Now, as I am writing this I think: What happens when you tilt the engine+gearbox backwards... The height needed is at its minimum and maybe you don't even have to rotate the gearbox relative to the engine... ( does it make sense, what I am saying?)

[fightingtorque]

The rotation would be different, but I think you would still need to do it.  And having seen how you have had to modify the sump to clear the driveshaft, I think if you tilt the engine back further you maybe end up with no sump.  Hard to say without having the parts in hand.

That imp conversion is all up for sale on ebay, enging+gearbox in one auction and rolling shell in another.  I will keep an eye on it, but probably the imp transmission wouldn't fit into the fiat space without modifying the floor completely.  And imp transmission although stronger than fiat, is probably a rarer item to get replacements and spares etc in future.

I think you are doing it the best way.

[pietschokkenbroek]

The rotation would be different, but I think you would still need to do it.  And having seen how you have had to modify the sump to clear the driveshaft, I think if you tilt the engine back further you maybe end up with no sump.  Hard to say without having the parts in hand.

So true! My parents drive an Aygo so I could get some measurement of their car before I bought an engine. If I can help you out by taking measurements or so... I 'll be willing to help

I think you are doing it the best way.

(Thank You  )