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Author: Subject: Physically Small Engine / Gearbox Package
ettore bugatti

posted on 22/6/15 at 10:08 PM Reply With Quote
Aygo gearing is very long and the engine (without supercharger) felt a bit flat after 5000rpm IMHO.

Otherwise, it ticks the boxes

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MikeRJ

posted on 27/10/15 at 11:37 AM Reply With Quote
Hey Scootz, any progress on this project?

My wife's Roadster Coupe was recently written off by a mad Aygo driver; the rear suspension is well and truly bent (the entire de-dion axle, x brace and the subframe bracket where the de-dion locates) so just pondering the possibilities of fitting something else in.

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scootz

posted on 27/10/15 at 11:50 AM Reply With Quote
Hi Mike

I went with the Aygo engine in the end. The good news is that the engine and box fit.



I'm not sure how I'm going to deal with the offside engine mount as it's solid and sits above the subframe. I was hoping it would go below, so I could simply drop the engine from underneath should I need to.

If that's not an option, then I'll just have to plan the electrics / plumbing to allow for easy subframe removal (it is only 4 bolts after all).

I also plan on using TB's from a Triumph Speed Four as these roughly have the same port size / shape. Again, it involves a bit of fabrication as I need to lose one of the bodies, but it's no big deal.

And that's ad far as I've got just now...





It's Evolution Baby!

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MikeRJ

posted on 27/10/15 at 12:27 PM Reply With Quote
Nice, that fits rather neatly, and I happen to know of a recently written of Aygo

Did you know there's an aftermarket turbo conversion for this engine?

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Ugg10

posted on 27/10/15 at 03:13 PM Reply With Quote
quote:
Originally posted by scootz


I also plan on using TB's from a Triumph Speed Four as these roughly have the same port size / shape. Again, it involves a bit of fabrication as I need to lose one of the bodies, but it's no big deal.

And that's ad far as I've got just now...


Why not just use the triumph triple throttle bodies, if you need measurements for the 955i version (200ish RS Sprint) they are in my blog under images/engine - link in my signature. there is also details of how I mounted them on a flat plate laser cut by lasermasters to fit them to my engine. May be of use, dead easy to do and costs around £20 to get them fitted. Looking at Aygo engines then looks like they will do the job.

[Edited on 27/10/15 by Ugg10]





---------------------------------------------------------------
1968 Ford Anglia 105e, 1.7 Zetec SE, Mk2 Escort Workd Cup front end, 5 link rear
Build Blog - http://Anglia1968.weebly.com

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scootz

posted on 27/10/15 at 05:49 PM Reply With Quote
Cheers Ugg. The 955 ones are too big to get them in-line with the 1KR-FE inlet ports (even with linkage modification).





It's Evolution Baby!

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Ugg10

posted on 27/10/15 at 06:10 PM Reply With Quote
No problems, just looked the the atp direct to head bling dimensions and that engine is tiny, I thought my zetec SE was small but......

http://beta.atpowerthrottles.com/product_info.php/toyota-1kr-38mm-p-169





---------------------------------------------------------------
1968 Ford Anglia 105e, 1.7 Zetec SE, Mk2 Escort Workd Cup front end, 5 link rear
Build Blog - http://Anglia1968.weebly.com

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scootz

posted on 27/10/15 at 07:04 PM Reply With Quote
It is dinky!





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daniel mason

posted on 27/10/15 at 08:18 PM Reply With Quote
Mike RJ. that comment made my day! Still chuckling to myself now
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smart51

posted on 27/10/15 at 09:54 PM Reply With Quote
These people supply 80 and 120 BHP versions of the 1KR-FE (Aygo) engine, so there's plenty of scope to get more than the stock 68 BHP from it.

C1GTi turbo charge it. They reckon the engine is good for far more than the 95BHP they give it, but they think the standard gearbox is only good for 100 BHP.

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MikeRJ

posted on 27/10/15 at 10:30 PM Reply With Quote
quote:
Originally posted by daniel mason
Mike RJ. that comment made my day! Still chuckling to myself now


My wife isn't very happy about it however. The Aygo driver swung out to the right side of the road to take a left hand junction (obviously the Aygo being a huge, 18 wheeler truck) ignoring the fact she was passing in the opposite direction at the time. He punted the Smart into a parked car putting a big dent in the side of it, and the front of the Aygo was destroyed. The roadster looks ok from a distance, but the bent suspension pretty much assures it being written off. Turns out it wasn't even the drivers Aygo, he owns a local garage and it was his customers. Oops.

Scootz, could you fabricate a new engine mounting bracket to shift the mounting point under the subframe, and then use a stabiliser bar from the front of the subframe to the cylinder head (like a classic mini) to stop it twisting?

EDIT: scratch that, just seen it's a big cast lump that's part of the timing cover. You could hack it off and have it alloy welded I suppose.

[Edited on 27/10/15 by MikeRJ]

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JC

posted on 4/2/18 at 08:47 AM Reply With Quote
Bit of a thread resurrection...

How did the Smart project go Scootz?

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scootz

posted on 4/2/18 at 09:46 AM Reply With Quote
Lol - its not made much, in fact any, progress.

Does that surprise anyone?





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